.gitmodules

@@ -0,0 +1,3 @@
+[submodule "magix/rfc"]
+	path = magix/rfc
+	url = https://github.com/waltz-controls/rfc

.space/CODEOWNERS

@@ -0,0 +1 @@
+./space/* "Project Admin"

build.gradle.kts

@@ -1,19 +1,38 @@
+import space.kscience.gradle.isInDevelopment
+import space.kscience.gradle.useApache2Licence
+import space.kscience.gradle.useSPCTeam
+
 plugins {
-    id("ru.mipt.npm.gradle.project")
+    id("space.kscience.gradle.project")
 }
 
-val dataforgeVersion: String by extra("0.5.1")
+val dataforgeVersion: String by extra("0.6.1-dev-4")
-val ktorVersion: String by extra(ru.mipt.npm.gradle.KScienceVersions.ktorVersion)
+val ktorVersion: String by extra(space.kscience.gradle.KScienceVersions.ktorVersion)
-val rsocketVersion by extra("0.13.1")
+val rsocketVersion by extra("0.15.4")
+val xodusVersion by extra("2.0.1")
 
 allprojects {
-    group = "ru.mipt.npm"
+    group = "space.kscience"
-    version = "0.1.1"
+    version = "0.1.1-SNAPSHOT"
+    repositories{
+        maven("https://maven.pkg.jetbrains.space/spc/p/sci/dev")
+    }
 }
 
 ksciencePublish {
-    github("controls.kt")
+    pom("https://github.com/SciProgCentre/controls.kt") {
-    space()
+        useApache2Licence()
+        useSPCTeam()
+    }
+    github("controls.kt", "SciProgCentre")
+    space(
+        if (isInDevelopment) {
+            "https://maven.pkg.jetbrains.space/spc/p/sci/dev"
+        } else {
+            "https://maven.pkg.jetbrains.space/spc/p/sci/release"
+        }
+    )
+    space("https://maven.pkg.jetbrains.space/spc/p/controls/maven")
 }
 
 apiValidation {

controls-core/build.gradle.kts

@@ -1,24 +1,20 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     `maven-publish`
 }
 
 val dataforgeVersion: String by rootProject.extra
 
 kscience {
-    useCoroutines("1.4.1")
+    jvm()
+    js()
+    native()
+    useCoroutines()
     useSerialization{
         json()
     }
-}
+    dependencies {
-
+        api("space.kscience:dataforge-io:$dataforgeVersion")
-kotlin {
+        api(npmlibs.kotlinx.datetime)
-    sourceSets {
-        commonMain{
-            dependencies {
-                api("space.kscience:dataforge-io:$dataforgeVersion")
-                api(npm.kotlinx.datetime)
-            }
-        }
     }
-}
+}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/DeviceAction.kt

@@ -1,10 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import ru.mipt.npm.controls.api.ActionDescriptor
-import space.kscience.dataforge.meta.Meta
-
-public interface DeviceAction {
-    public val name: String
-    public val descriptor: ActionDescriptor
-    public suspend operator fun invoke(arg: Meta? = null): Meta?
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/DeviceBase.kt

@@ -1,252 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.MutableSharedFlow
-import kotlinx.coroutines.flow.MutableStateFlow
-import kotlinx.coroutines.flow.SharedFlow
-import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import ru.mipt.npm.controls.api.*
-import space.kscience.dataforge.context.Context
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.misc.DFExperimental
-import kotlin.collections.set
-import kotlin.coroutines.CoroutineContext
-
-//TODO move to DataForge-core
-@DFExperimental
-public data class LogEntry(val content: String, val priority: Int = 0)
-
-
-@OptIn(ExperimentalCoroutinesApi::class)
-private open class BasicReadOnlyDeviceProperty(
-    val device: DeviceBase,
-    override val name: String,
-    default: Meta?,
-    override val descriptor: PropertyDescriptor,
-    private val getter: suspend (before: Meta?) -> Meta,
-) : ReadOnlyDeviceProperty {
-
-    override val scope: CoroutineScope get() = device
-
-    private val state: MutableStateFlow<Meta?> = MutableStateFlow(default)
-    override val value: Meta? get() = state.value
-
-    override suspend fun invalidate() {
-        state.value = null
-    }
-
-    override fun updateLogical(item: Meta) {
-        state.value = item
-        scope.launch {
-            device.sharedMessageFlow.emit(
-                PropertyChangedMessage(
-                    property = name,
-                    value = item,
-                )
-            )
-        }
-    }
-
-    override suspend fun read(force: Boolean): Meta {
-        //backup current value
-        val currentValue = value
-        return if (force || currentValue == null) {
-            //all device operations should be run on device context
-            //propagate error, but do not fail scope
-            val res = withContext(scope.coroutineContext + SupervisorJob(scope.coroutineContext[Job])) {
-                getter(currentValue)
-            }
-            updateLogical(res)
-            res
-        } else {
-            currentValue
-        }
-    }
-
-    override fun flow(): StateFlow<Meta?> = state
-}
-
-
-@OptIn(ExperimentalCoroutinesApi::class)
-private class BasicDeviceProperty(
-    device: DeviceBase,
-    name: String,
-    default: Meta?,
-    descriptor: PropertyDescriptor,
-    getter: suspend (Meta?) -> Meta,
-    private val setter: suspend (oldValue: Meta?, newValue: Meta) -> Meta?,
-) : BasicReadOnlyDeviceProperty(device, name, default, descriptor, getter), DeviceProperty {
-
-    override var value: Meta?
-        get() = super.value
-        set(value) {
-            scope.launch {
-                if (value == null) {
-                    invalidate()
-                } else {
-                    write(value)
-                }
-            }
-        }
-
-    private val writeLock = Mutex()
-
-    override suspend fun write(item: Meta) {
-        writeLock.withLock {
-            //fast return if value is not changed
-            if (item == value) return@withLock
-            val oldValue = value
-            //all device operations should be run on device context
-            withContext(scope.coroutineContext + SupervisorJob(scope.coroutineContext[Job])) {
-                setter(oldValue, item)?.let {
-                    updateLogical(it)
-                }
-            }
-        }
-    }
-}
-
-/**
- * Baseline implementation of [Device] interface
- */
-@Suppress("EXPERIMENTAL_API_USAGE")
-public abstract class DeviceBase(final override val context: Context) : Device {
-
-    override val coroutineContext: CoroutineContext =
-        context.coroutineContext + SupervisorJob(context.coroutineContext[Job])
-
-    private val _properties = HashMap<String, ReadOnlyDeviceProperty>()
-    public val properties: Map<String, ReadOnlyDeviceProperty> get() = _properties
-    private val _actions = HashMap<String, DeviceAction>()
-    public val actions: Map<String, DeviceAction> get() = _actions
-
-    internal val sharedMessageFlow = MutableSharedFlow<DeviceMessage>()
-
-    override val messageFlow: SharedFlow<DeviceMessage> get() = sharedMessageFlow
-    private val sharedLogFlow = MutableSharedFlow<LogEntry>()
-
-    /**
-     * The [SharedFlow] of log messages
-     */
-    @DFExperimental
-    public val logFlow: SharedFlow<LogEntry>
-        get() = sharedLogFlow
-
-    protected suspend fun log(message: String, priority: Int = 0) {
-        sharedLogFlow.emit(LogEntry(message, priority))
-    }
-
-    override val propertyDescriptors: Collection<PropertyDescriptor>
-        get() = _properties.values.map { it.descriptor }
-
-    override val actionDescriptors: Collection<ActionDescriptor>
-        get() = _actions.values.map { it.descriptor }
-
-    private fun <P : ReadOnlyDeviceProperty> registerProperty(name: String, property: P) {
-        if (_properties.contains(name)) error("Property with name $name already registered")
-        _properties[name] = property
-    }
-
-    internal fun registerAction(name: String, action: DeviceAction) {
-        if (_actions.contains(name)) error("Action with name $name already registered")
-        _actions[name] = action
-    }
-
-    override suspend fun readProperty(propertyName: String): Meta =
-        (_properties[propertyName] ?: error("Property with name $propertyName not defined")).read()
-
-    override fun getProperty(propertyName: String): Meta? =
-        (_properties[propertyName] ?: error("Property with name $propertyName not defined")).value
-
-    override suspend fun invalidate(propertyName: String) {
-        (_properties[propertyName] ?: error("Property with name $propertyName not defined")).invalidate()
-    }
-
-    override suspend fun writeProperty(propertyName: String, value: Meta) {
-        (_properties[propertyName] as? DeviceProperty ?: error("Property with name $propertyName not defined")).write(
-            value
-        )
-    }
-
-    override suspend fun execute(action: String, argument: Meta?): Meta? =
-        (_actions[action] ?: error("Request with name $action not defined")).invoke(argument)
-
-    /**
-     * Create a bound read-only property with given [getter]
-     */
-    public fun createReadOnlyProperty(
-        name: String,
-        default: Meta?,
-        descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-        getter: suspend (Meta?) -> Meta,
-    ): ReadOnlyDeviceProperty {
-        val property = BasicReadOnlyDeviceProperty(
-            this,
-            name,
-            default,
-            PropertyDescriptor(name).apply(descriptorBuilder),
-            getter
-        )
-        registerProperty(name, property)
-        return property
-    }
-
-
-    /**
-     * Create a bound mutable property with given [getter] and [setter]
-     */
-    internal fun createMutableProperty(
-        name: String,
-        default: Meta?,
-        descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-        getter: suspend (Meta?) -> Meta,
-        setter: suspend (oldValue: Meta?, newValue: Meta) -> Meta?,
-    ): DeviceProperty {
-        val property = BasicDeviceProperty(
-            this,
-            name,
-            default,
-            PropertyDescriptor(name).apply(descriptorBuilder),
-            getter,
-            setter
-        )
-        registerProperty(name, property)
-        return property
-    }
-
-    /**
-     * A stand-alone action
-     */
-    private inner class BasicDeviceAction(
-        override val name: String,
-        override val descriptor: ActionDescriptor,
-        private val block: suspend (Meta?) -> Meta?,
-    ) : DeviceAction {
-        override suspend fun invoke(arg: Meta?): Meta? =
-            withContext(coroutineContext) {
-                block(arg)
-            }
-    }
-
-    /**
-     * Create a new bound action
-     */
-    internal fun createAction(
-        name: String,
-        descriptorBuilder: ActionDescriptor.() -> Unit = {},
-        block: suspend (Meta?) -> Meta?,
-    ): DeviceAction {
-        val action = BasicDeviceAction(name, ActionDescriptor(name).apply(descriptorBuilder), block)
-        registerAction(name, action)
-        return action
-    }
-
-    public companion object {
-
-    }
-}
-
-
-

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/DeviceProperty.kt

@@ -1,74 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.Flow
-import ru.mipt.npm.controls.api.PropertyDescriptor
-import space.kscience.dataforge.meta.Meta
-import kotlin.time.Duration
-
-/**
- * Read-only device property
- */
-public interface ReadOnlyDeviceProperty {
-    /**
-     * Property name, should be unique in device
-     */
-    public val name: String
-
-    /**
-     * Property descriptor
-     */
-    public val descriptor: PropertyDescriptor
-
-    public val scope: CoroutineScope
-
-    /**
-     * Erase logical value and force re-read from device on next [read]
-     */
-    public suspend fun invalidate()
-
-    /**
-     * Directly update property logical value and notify listener without writing it to device
-     */
-    public fun updateLogical(item: Meta)
-
-    /**
-     *  Get cached value and return null if value is invalid or not initialized
-     */
-    public val value: Meta?
-
-    /**
-     * Read value either from cache if cache is valid or directly from physical device.
-     * If [force], reread from physical state even if the logical state is set.
-     */
-    public suspend fun read(force: Boolean = false): Meta
-
-    /**
-     * The [Flow] representing future logical states of the property.
-     * Produces null when the state is invalidated
-     */
-    public fun flow(): Flow<Meta?>
-}
-
-
-/**
- * Launch recurring force re-read job on a property scope with given [duration] between reads.
- */
-public fun ReadOnlyDeviceProperty.readEvery(duration: Duration): Job = scope.launch {
-    while (isActive) {
-        read(true)
-        delay(duration)
-    }
-}
-
-/**
- * A writeable device property with non-suspended write
- */
-public interface DeviceProperty : ReadOnlyDeviceProperty {
-    override var value: Meta?
-
-    /**
-     * Write value to physical device. Invalidates logical value, but does not update it automatically
-     */
-    public suspend fun write(item: Meta)
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/TypedDeviceProperty.kt

@@ -1,58 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.map
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.transformations.MetaConverter
-
-/**
- * A type-safe wrapper on top of read-only property
- */
-public open class TypedReadOnlyDeviceProperty<T : Any>(
-    private val property: ReadOnlyDeviceProperty,
-    protected val converter: MetaConverter<T>,
-) : ReadOnlyDeviceProperty by property {
-
-    public fun updateLogical(obj: T) {
-        property.updateLogical(converter.objectToMeta(obj))
-    }
-
-    public open val typedValue: T? get() = value?.let { converter.metaToObject(it) }
-
-    public suspend fun readTyped(force: Boolean = false): T {
-        val meta = read(force)
-        return converter.metaToObject(meta)
-            ?: error("Meta $meta could not be converted by $converter")
-    }
-
-    public fun flowTyped(): Flow<T?> = flow().map { it?.let { converter.metaToObject(it) } }
-}
-
-/**
- * A type-safe wrapper for a read-write device property
- */
-public class TypedDeviceProperty<T : Any>(
-    private val property: DeviceProperty,
-    converter: MetaConverter<T>,
-) : TypedReadOnlyDeviceProperty<T>(property, converter), DeviceProperty {
-
-    override var value: Meta?
-        get() = property.value
-        set(arg) {
-            property.value = arg
-        }
-
-    public override var typedValue: T?
-        get() = value?.let { converter.metaToObject(it) }
-        set(arg) {
-            property.value = arg?.let { converter.objectToMeta(arg) }
-        }
-
-    override suspend fun write(item: Meta) {
-        property.write(item)
-    }
-
-    public suspend fun write(obj: T) {
-        property.write(converter.objectToMeta(obj))
-    }
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/actionDelegates.kt

@@ -1,58 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import ru.mipt.npm.controls.api.ActionDescriptor
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.MutableMeta
-import space.kscience.dataforge.values.Value
-import kotlin.properties.PropertyDelegateProvider
-import kotlin.properties.ReadOnlyProperty
-import kotlin.reflect.KProperty
-
-
-private fun <D : DeviceBase> D.provideAction(): ReadOnlyProperty<D, DeviceAction> =
-    ReadOnlyProperty { _: D, property: KProperty<*> ->
-        val name = property.name
-        return@ReadOnlyProperty actions[name]!!
-    }
-
-public typealias ActionDelegate = ReadOnlyProperty<DeviceBase, DeviceAction>
-
-private class ActionProvider<D : DeviceBase>(
-    val owner: D,
-    val descriptorBuilder: ActionDescriptor.() -> Unit = {},
-    val block: suspend (Meta?) -> Meta?,
-) : PropertyDelegateProvider<D, ActionDelegate> {
-    override operator fun provideDelegate(thisRef: D, property: KProperty<*>): ActionDelegate {
-        val name = property.name
-        owner.createAction(name, descriptorBuilder, block)
-        return owner.provideAction()
-    }
-}
-
-public fun DeviceBase.requesting(
-    descriptorBuilder: ActionDescriptor.() -> Unit = {},
-    action: suspend (Meta?) -> Meta?,
-): PropertyDelegateProvider<DeviceBase, ActionDelegate> = ActionProvider(this, descriptorBuilder, action)
-
-public fun <D : DeviceBase> D.requestingValue(
-    descriptorBuilder: ActionDescriptor.() -> Unit = {},
-    action: suspend (Meta?) -> Any?,
-): PropertyDelegateProvider<D, ActionDelegate> = ActionProvider(this, descriptorBuilder) {
-    val res = action(it)
-    Meta(Value.of(res))
-}
-
-public fun <D : DeviceBase> D.requestingMeta(
-    descriptorBuilder: ActionDescriptor.() -> Unit = {},
-    action: suspend MutableMeta.(Meta?) -> Unit,
-): PropertyDelegateProvider<D, ActionDelegate> = ActionProvider(this, descriptorBuilder) {
-    Meta { action(it) }
-}
-
-public fun DeviceBase.acting(
-    descriptorBuilder: ActionDescriptor.() -> Unit = {},
-    action: suspend (Meta?) -> Unit,
-): PropertyDelegateProvider<DeviceBase, ActionDelegate> = ActionProvider(this, descriptorBuilder) {
-    action(it)
-    null
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/base/devicePropertyDelegates.kt

@@ -1,283 +0,0 @@
-package ru.mipt.npm.controls.base
-
-import ru.mipt.npm.controls.api.PropertyDescriptor
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.MutableMeta
-import space.kscience.dataforge.meta.boolean
-import space.kscience.dataforge.meta.double
-import space.kscience.dataforge.meta.transformations.MetaConverter
-import space.kscience.dataforge.values.Null
-import space.kscience.dataforge.values.Value
-import space.kscience.dataforge.values.asValue
-import kotlin.properties.PropertyDelegateProvider
-import kotlin.properties.ReadOnlyProperty
-import kotlin.reflect.KProperty
-
-private fun <D : DeviceBase> D.provideProperty(name: String): ReadOnlyProperty<D, ReadOnlyDeviceProperty> =
-    ReadOnlyProperty { _: D, _: KProperty<*> ->
-        return@ReadOnlyProperty properties.getValue(name)
-    }
-
-private fun <D : DeviceBase, T : Any> D.provideProperty(
-    name: String,
-    converter: MetaConverter<T>,
-): ReadOnlyProperty<D, TypedReadOnlyDeviceProperty<T>> =
-    ReadOnlyProperty { _: D, _: KProperty<*> ->
-        return@ReadOnlyProperty TypedReadOnlyDeviceProperty(properties.getValue(name), converter)
-    }
-
-
-public typealias ReadOnlyPropertyDelegate = ReadOnlyProperty<DeviceBase, ReadOnlyDeviceProperty>
-public typealias TypedReadOnlyPropertyDelegate<T> = ReadOnlyProperty<DeviceBase, TypedReadOnlyDeviceProperty<T>>
-
-private class ReadOnlyDevicePropertyProvider<D : DeviceBase>(
-    val owner: D,
-    val default: Meta?,
-    val descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    private val getter: suspend (Meta?) -> Meta,
-) : PropertyDelegateProvider<D, ReadOnlyPropertyDelegate> {
-
-    override operator fun provideDelegate(thisRef: D, property: KProperty<*>): ReadOnlyPropertyDelegate {
-        val name = property.name
-        owner.createReadOnlyProperty(name, default, descriptorBuilder, getter)
-        return owner.provideProperty(name)
-    }
-}
-
-private class TypedReadOnlyDevicePropertyProvider<D : DeviceBase, T : Any>(
-    val owner: D,
-    val default: Meta?,
-    val converter: MetaConverter<T>,
-    val descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    private val getter: suspend (Meta?) -> Meta,
-) : PropertyDelegateProvider<D, TypedReadOnlyPropertyDelegate<T>> {
-
-    override operator fun provideDelegate(thisRef: D, property: KProperty<*>): TypedReadOnlyPropertyDelegate<T> {
-        val name = property.name
-        owner.createReadOnlyProperty(name, default, descriptorBuilder, getter)
-        return owner.provideProperty(name, converter)
-    }
-}
-
-public fun DeviceBase.reading(
-    default: Meta? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend (Meta?) -> Meta,
-): PropertyDelegateProvider<DeviceBase, ReadOnlyPropertyDelegate> = ReadOnlyDevicePropertyProvider(
-    this,
-    default,
-    descriptorBuilder,
-    getter
-)
-
-public fun DeviceBase.readingValue(
-    default: Value? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend () -> Any?,
-): PropertyDelegateProvider<DeviceBase, ReadOnlyPropertyDelegate> = ReadOnlyDevicePropertyProvider(
-    this,
-    default?.let { Meta(it) },
-    descriptorBuilder,
-    getter = { Meta(Value.of(getter())) }
-)
-
-public fun DeviceBase.readingNumber(
-    default: Number? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend () -> Number,
-): PropertyDelegateProvider<DeviceBase, TypedReadOnlyPropertyDelegate<Number>> = TypedReadOnlyDevicePropertyProvider(
-    this,
-    default?.let { Meta(it.asValue()) },
-    MetaConverter.number,
-    descriptorBuilder,
-    getter = {
-        val number = getter()
-        Meta(number.asValue())
-    }
-)
-
-public fun DeviceBase.readingDouble(
-    default: Number? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend () -> Double,
-): PropertyDelegateProvider<DeviceBase, TypedReadOnlyPropertyDelegate<Double>> = TypedReadOnlyDevicePropertyProvider(
-    this,
-    default?.let { Meta(it.asValue()) },
-    MetaConverter.double,
-    descriptorBuilder,
-    getter = {
-        val number = getter()
-        Meta(number.asValue())
-    }
-)
-
-public fun DeviceBase.readingString(
-    default: String? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend () -> String,
-): PropertyDelegateProvider<DeviceBase, TypedReadOnlyPropertyDelegate<String>> = TypedReadOnlyDevicePropertyProvider(
-    this,
-    default?.let { Meta(it.asValue()) },
-    MetaConverter.string,
-    descriptorBuilder,
-    getter = {
-        val number = getter()
-        Meta(number.asValue())
-    }
-)
-
-public fun DeviceBase.readingBoolean(
-    default: Boolean? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend () -> Boolean,
-): PropertyDelegateProvider<DeviceBase, TypedReadOnlyPropertyDelegate<Boolean>> = TypedReadOnlyDevicePropertyProvider(
-    this,
-    default?.let { Meta(it.asValue()) },
-    MetaConverter.boolean,
-    descriptorBuilder,
-    getter = {
-        val boolean = getter()
-        Meta(boolean.asValue())
-    }
-)
-
-public fun DeviceBase.readingMeta(
-    default: Meta? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend MutableMeta.() -> Unit,
-): PropertyDelegateProvider<DeviceBase, TypedReadOnlyPropertyDelegate<Meta>> = TypedReadOnlyDevicePropertyProvider(
-    this,
-    default,
-    MetaConverter.meta,
-    descriptorBuilder,
-    getter = {
-        Meta { getter() }
-    }
-)
-
-private fun DeviceBase.provideMutableProperty(name: String): ReadOnlyProperty<DeviceBase, DeviceProperty> =
-    ReadOnlyProperty { _: DeviceBase, _: KProperty<*> ->
-        return@ReadOnlyProperty properties[name] as DeviceProperty
-    }
-
-private fun <T : Any> DeviceBase.provideMutableProperty(
-    name: String,
-    converter: MetaConverter<T>,
-): ReadOnlyProperty<DeviceBase, TypedDeviceProperty<T>> =
-    ReadOnlyProperty { _: DeviceBase, _: KProperty<*> ->
-        return@ReadOnlyProperty TypedDeviceProperty(properties[name] as DeviceProperty, converter)
-    }
-
-public typealias PropertyDelegate = ReadOnlyProperty<DeviceBase, DeviceProperty>
-public typealias TypedPropertyDelegate<T> = ReadOnlyProperty<DeviceBase, TypedDeviceProperty<T>>
-
-private class DevicePropertyProvider<D : DeviceBase>(
-    val owner: D,
-    val default: Meta?,
-    val descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    private val getter: suspend (Meta?) -> Meta,
-    private val setter: suspend (oldValue: Meta?, newValue: Meta) -> Meta?,
-) : PropertyDelegateProvider<D, PropertyDelegate> {
-
-    override operator fun provideDelegate(thisRef: D, property: KProperty<*>): PropertyDelegate {
-        val name = property.name
-        owner.createMutableProperty(name, default, descriptorBuilder, getter, setter)
-        return owner.provideMutableProperty(name)
-    }
-}
-
-private class TypedDevicePropertyProvider<D : DeviceBase, T : Any>(
-    val owner: D,
-    val default: Meta?,
-    val converter: MetaConverter<T>,
-    val descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    private val getter: suspend (Meta?) -> Meta,
-    private val setter: suspend (oldValue: Meta?, newValue: Meta) -> Meta?,
-) : PropertyDelegateProvider<D, TypedPropertyDelegate<T>> {
-
-    override operator fun provideDelegate(thisRef: D, property: KProperty<*>): TypedPropertyDelegate<T> {
-        val name = property.name
-        owner.createMutableProperty(name, default, descriptorBuilder, getter, setter)
-        return owner.provideMutableProperty(name, converter)
-    }
-}
-
-public fun DeviceBase.writing(
-    default: Meta? = null,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend (Meta?) -> Meta,
-    setter: suspend (oldValue: Meta?, newValue: Meta) -> Meta?,
-): PropertyDelegateProvider<DeviceBase, PropertyDelegate> = DevicePropertyProvider(
-    this,
-    default,
-    descriptorBuilder,
-    getter,
-    setter
-)
-
-public fun DeviceBase.writingVirtual(
-    default: Meta,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-): PropertyDelegateProvider<DeviceBase, PropertyDelegate> = writing(
-    default,
-    descriptorBuilder,
-    getter = { it ?: default },
-    setter = { _, newItem -> newItem }
-)
-
-public fun DeviceBase.writingVirtual(
-    default: Value,
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-): PropertyDelegateProvider<DeviceBase, PropertyDelegate> = writing(
-    Meta(default),
-    descriptorBuilder,
-    getter = { it ?: Meta(default) },
-    setter = { _, newItem -> newItem }
-)
-
-public fun <D : DeviceBase> D.writingDouble(
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend (Double) -> Double,
-    setter: suspend (oldValue: Double?, newValue: Double) -> Double?,
-): PropertyDelegateProvider<D, TypedPropertyDelegate<Double>> {
-    val innerGetter: suspend (Meta?) -> Meta = {
-        Meta(getter(it.double ?: Double.NaN).asValue())
-    }
-
-    val innerSetter: suspend (oldValue: Meta?, newValue: Meta) -> Meta? = { oldValue, newValue ->
-        setter(oldValue.double, newValue.double ?: Double.NaN)?.asMeta()
-    }
-
-    return TypedDevicePropertyProvider(
-        this,
-        Meta(Double.NaN.asValue()),
-        MetaConverter.double,
-        descriptorBuilder,
-        innerGetter,
-        innerSetter
-    )
-}
-
-public fun <D : DeviceBase> D.writingBoolean(
-    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    getter: suspend (Boolean?) -> Boolean,
-    setter: suspend (oldValue: Boolean?, newValue: Boolean) -> Boolean?,
-): PropertyDelegateProvider<D, TypedPropertyDelegate<Boolean>> {
-    val innerGetter: suspend (Meta?) -> Meta = {
-        Meta(getter(it.boolean).asValue())
-    }
-
-    val innerSetter: suspend (oldValue: Meta?, newValue: Meta) -> Meta? = { oldValue, newValue ->
-        setter(oldValue.boolean, newValue.boolean ?: error("Can't convert $newValue to boolean"))?.asValue()
-            ?.let { Meta(it) }
-    }
-
-    return TypedDevicePropertyProvider(
-        this,
-        Meta(Null),
-        MetaConverter.boolean,
-        descriptorBuilder,
-        innerGetter,
-        innerSetter
-    )
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/ports/SynchronousPortHandler.kt

@@ -1,34 +0,0 @@
-package ru.mipt.npm.controls.ports
-
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-
-/**
- * A port handler for synchronous (request-response) communication with a port. Only one request could be active at a time (others are suspended.
- * The handler does not guarantee exclusive access to the port so the user mush ensure that no other controller handles port at the moment.
- *
- */
-public class SynchronousPortHandler(public val port: Port) {
-    private val mutex = Mutex()
-
-    /**
-     * Send a single message and wait for the flow of respond messages.
-     */
-    public suspend fun <R> respond(data: ByteArray, transform: suspend Flow<ByteArray>.() -> R): R {
-        return mutex.withLock {
-            port.send(data)
-            transform(port.receiving())
-        }
-    }
-}
-
-/**
- * Send request and read incoming data blocks until the delimiter is encountered
- */
-public suspend fun SynchronousPortHandler.respondWithDelimiter(data: ByteArray, delimiter: ByteArray): ByteArray {
-    return respond(data) {
-        withDelimiter(delimiter).first()
-    }
-}

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/properties/DevicePropertySpec.kt

@@ -1,85 +0,0 @@
-package ru.mipt.npm.controls.properties
-
-import ru.mipt.npm.controls.api.ActionDescriptor
-import ru.mipt.npm.controls.api.Device
-import ru.mipt.npm.controls.api.PropertyDescriptor
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.transformations.MetaConverter
-
-
-/**
- * This API is internal and should not be used in user code
- */
-@RequiresOptIn
-public annotation class InternalDeviceAPI
-
-public interface DevicePropertySpec<in D : Device, T> {
-    /**
-     * Property name, should be unique in device
-     */
-    public val name: String
-
-    /**
-     * Property descriptor
-     */
-    public val descriptor: PropertyDescriptor
-
-    /**
-     * Meta item converter for resulting type
-     */
-    public val converter: MetaConverter<T>
-
-    /**
-     * Read physical value from the given [device]
-     */
-    @InternalDeviceAPI
-    public suspend fun read(device: D): T
-}
-
-@OptIn(InternalDeviceAPI::class)
-public suspend fun <D : Device, T> DevicePropertySpec<D, T>.readMeta(device: D): Meta =
-    converter.objectToMeta(read(device))
-
-
-public interface WritableDevicePropertySpec<in D : Device, T> : DevicePropertySpec<D, T> {
-    /**
-     * Write physical value to a device
-     */
-    @InternalDeviceAPI
-    public suspend fun write(device: D, value: T)
-}
-
-@OptIn(InternalDeviceAPI::class)
-public suspend fun <D : Device, T> WritableDevicePropertySpec<D, T>.writeMeta(device: D, item: Meta) {
-    write(device, converter.metaToObject(item) ?: error("Meta $item could not be read with $converter"))
-}
-
-public interface DeviceActionSpec<in D : Device, I, O> {
-    /**
-     * Action name, should be unique in device
-     */
-    public val name: String
-
-    /**
-     * Action descriptor
-     */
-    public val descriptor: ActionDescriptor
-
-    public val inputConverter: MetaConverter<I>
-
-    public val outputConverter: MetaConverter<O>
-
-    /**
-     * Execute action on a device
-     */
-    public suspend fun execute(device: D, input: I?): O?
-}
-
-public suspend fun <D : Device, I, O> DeviceActionSpec<D, I, O>.executeMeta(
-    device: D,
-    item: Meta?
-): Meta? {
-    val arg = item?.let { inputConverter.metaToObject(item) }
-    val res = execute(device, arg)
-    return res?.let { outputConverter.objectToMeta(res) }
-}

controls-core/src/commonMain/kotlin/space/kscience/controls/api/Device.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.api
+package space.kscience.controls.api
 
 import io.ktor.utils.io.core.Closeable
 import kotlinx.coroutines.CoroutineScope
@@ -8,7 +8,7 @@ import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.filterIsInstance
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
-import ru.mipt.npm.controls.api.Device.Companion.DEVICE_TARGET
+import space.kscience.controls.api.Device.Companion.DEVICE_TARGET
 import space.kscience.dataforge.context.ContextAware
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.misc.Type
@@ -21,6 +21,12 @@ import space.kscience.dataforge.names.Name
  */
 @Type(DEVICE_TARGET)
 public interface Device : Closeable, ContextAware, CoroutineScope {
+
+    /**
+     * Initial configuration meta for the device
+     */
+    public val meta: Meta get() = Meta.EMPTY
+
     /**
      * List of supported property descriptors
      */
@@ -51,13 +57,13 @@ public interface Device : Closeable, ContextAware, CoroutineScope {
 
     /**
      * Set property [value] for a property with name [propertyName].
-     * In rare cases could suspend if the [Device] supports command queue and it is full at the moment.
+     * In rare cases could suspend if the [Device] supports command queue, and it is full at the moment.
      */
     public suspend fun writeProperty(propertyName: String, value: Meta)
 
     /**
      * A subscription-based [Flow] of [DeviceMessage] provided by device. The flow is guaranteed to be readable
-     * multiple times
+     * multiple times.
      */
     public val messageFlow: Flow<DeviceMessage>
 
@@ -67,6 +73,14 @@ public interface Device : Closeable, ContextAware, CoroutineScope {
      */
     public suspend fun execute(action: String, argument: Meta? = null): Meta?
 
+    /**
+     * Initialize the device. This function suspends until the device is finished initialization
+     */
+    public suspend fun open(): Unit = Unit
+
+    /**
+     * Close and terminate the device. This function does not wait for device to be closed.
+     */
     override fun close() {
         cancel("The device is closed")
     }
@@ -85,9 +99,9 @@ public suspend fun Device.getOrReadProperty(propertyName: String): Meta =
 /**
  * Get a snapshot of logical state of the device
  *
- * TODO currently this 
+ * TODO currently this
  */
-public fun Device.getProperties(): Meta = Meta {
+public fun Device.getAllProperties(): Meta = Meta {
     for (descriptor in propertyDescriptors) {
         setMeta(Name.parse(descriptor.name), getProperty(descriptor.name))
     }
@@ -97,4 +111,4 @@ public fun Device.getProperties(): Meta = Meta {
  * Subscribe on property changes for the whole device
  */
 public fun Device.onPropertyChange(callback: suspend PropertyChangedMessage.() -> Unit): Job =
-    messageFlow.filterIsInstance<PropertyChangedMessage>().onEach(callback).launchIn(this)
+    messageFlow.filterIsInstance<PropertyChangedMessage>().onEach(callback).launchIn(this)

controls-core/src/commonMain/kotlin/space/kscience/controls/api/DeviceHub.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.api
+package space.kscience.controls.api
 
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.names.*

controls-core/src/commonMain/kotlin/space/kscience/controls/api/DeviceMessage.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.api
+package space.kscience.controls.api
 
 import kotlinx.datetime.Clock
 import kotlinx.datetime.Instant
@@ -7,7 +7,7 @@ import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.decodeFromJsonElement
 import kotlinx.serialization.json.encodeToJsonElement
-import space.kscience.dataforge.io.SimpleEnvelope
+import space.kscience.dataforge.io.Envelope
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.toJson
 import space.kscience.dataforge.meta.toMeta
@@ -113,6 +113,8 @@ public data class GetDescriptionMessage(
 @SerialName("description")
 public data class DescriptionMessage(
     val description: Meta,
+    val properties: Collection<PropertyDescriptor>,
+    val actions: Collection<ActionDescriptor>,
     override val sourceDevice: Name,
     override val targetDevice: Name? = null,
     override val comment: String? = null,
@@ -219,4 +221,4 @@ public data class DeviceErrorMessage(
 
 public fun DeviceMessage.toMeta(): Meta = Json.encodeToJsonElement(this).toMeta()
 
-public fun DeviceMessage.toEnvelope(): SimpleEnvelope = SimpleEnvelope(toMeta(), null)
+public fun DeviceMessage.toEnvelope(): Envelope = Envelope(toMeta(), null)

controls-core/src/commonMain/kotlin/space/kscience/controls/api/Socket.kt

@@ -1,14 +1,13 @@
-package ru.mipt.npm.controls.api
+package space.kscience.controls.api
 
 import io.ktor.utils.io.core.Closeable
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.launch
 
 /**
- * A generic bi-directional sender/receiver object
+ * A generic bidirectional sender/receiver object
  */
 public interface Socket<T> : Closeable {
     /**

controls-core/src/commonMain/kotlin/space/kscience/controls/api/descriptors.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.api
+package space.kscience.controls.api
 
 import kotlinx.serialization.Serializable
 import space.kscience.dataforge.meta.descriptors.MetaDescriptor

controls-core/src/commonMain/kotlin/space/kscience/controls/manager/DeviceManager.kt

@@ -1,7 +1,8 @@
-package ru.mipt.npm.controls.controllers
+package space.kscience.controls.manager
 
-import ru.mipt.npm.controls.api.Device
+import kotlinx.coroutines.launch
-import ru.mipt.npm.controls.api.DeviceHub
+import space.kscience.controls.api.Device
+import space.kscience.controls.api.DeviceHub
 import space.kscience.dataforge.context.*
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.MutableMeta
@@ -30,7 +31,7 @@ public class DeviceManager : AbstractPlugin(), DeviceHub {
         override val tag: PluginTag = PluginTag("devices", group = PluginTag.DATAFORGE_GROUP)
         override val type: KClass<out DeviceManager> = DeviceManager::class
 
-        override fun invoke(meta: Meta, context: Context): DeviceManager = DeviceManager()
+        override fun build(context: Context, meta: Meta): DeviceManager = DeviceManager()
     }
 }
 
@@ -38,6 +39,9 @@ public class DeviceManager : AbstractPlugin(), DeviceHub {
 public fun <D : Device> DeviceManager.install(name: String, factory: Factory<D>, meta: Meta = Meta.EMPTY): D {
     val device = factory(meta, context)
     registerDevice(NameToken(name), device)
+    device.launch {
+        device.open()
+    }
     return device
 }
 

controls-core/src/commonMain/kotlin/space/kscience/controls/manager/deviceMessages.kt

@@ -1,15 +1,11 @@
-package ru.mipt.npm.controls.controllers
+package space.kscience.controls.manager
 
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
-import kotlinx.serialization.json.Json
+import space.kscience.controls.api.*
-import kotlinx.serialization.json.encodeToJsonElement
-import ru.mipt.npm.controls.api.*
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.toMeta
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.plus
 
@@ -48,21 +44,10 @@ public suspend fun Device.respondMessage(deviceTarget: Name, request: DeviceMess
         }
 
         is GetDescriptionMessage -> {
-            val descriptionMeta = Meta {
-                "properties" put {
-                    propertyDescriptors.map { descriptor ->
-                        descriptor.name put Json.encodeToJsonElement(descriptor).toMeta()
-                    }
-                }
-                "actions" put {
-                    actionDescriptors.map { descriptor ->
-                        descriptor.name put Json.encodeToJsonElement(descriptor).toMeta()
-                    }
-                }
-            }
-
             DescriptionMessage(
-                description = descriptionMeta,
+                description = meta,
+                properties = propertyDescriptors,
+                actions = actionDescriptors,
                 sourceDevice = deviceTarget,
                 targetDevice = request.sourceDevice
             )
@@ -95,6 +80,8 @@ public suspend fun DeviceHub.respondHubMessage(request: DeviceMessage): DeviceMe
  * Collect all messages from given [DeviceHub], applying proper relative names
  */
 public fun DeviceHub.hubMessageFlow(scope: CoroutineScope): Flow<DeviceMessage> {
+    
+    //TODO could we avoid using downstream scope?
     val outbox = MutableSharedFlow<DeviceMessage>()
     if (this is Device) {
         messageFlow.onEach {

controls-core/src/commonMain/kotlin/space/kscience/controls/ports/Port.kt

@@ -1,16 +1,24 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import kotlinx.coroutines.*
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.receiveAsFlow
-import ru.mipt.npm.controls.api.Socket
+import space.kscience.controls.api.Socket
 import space.kscience.dataforge.context.*
+import space.kscience.dataforge.misc.Type
 import kotlin.coroutines.CoroutineContext
 
 public interface Port : ContextAware, Socket<ByteArray>
 
-public typealias PortFactory = Factory<Port>
+@Type(PortFactory.TYPE)
+public interface PortFactory: Factory<Port>{
+    public val type: String
+
+    public companion object{
+        public const val TYPE: String = "controls.port"
+    }
+}
 
 public abstract class AbstractPort(
     override val context: Context,
@@ -64,12 +72,10 @@ public abstract class AbstractPort(
 
     /**
      * Raw flow of incoming data chunks. The chunks are not guaranteed to be complete phrases.
-     * In order to form phrases some condition should used on top of it.
+     * In order to form phrases some condition should be used on top of it.
      * For example [delimitedIncoming] generates phrases with fixed delimiter.
      */
-    override fun receiving(): Flow<ByteArray> {
+    override fun receiving(): Flow<ByteArray> = incoming.receiveAsFlow()
-        return incoming.receiveAsFlow()
-    }
 
     override fun close() {
         outgoing.close()

controls-core/src/commonMain/kotlin/space/kscience/controls/ports/PortProxy.kt

@@ -1,8 +1,7 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.sync.Mutex

controls-core/src/commonMain/kotlin/space/kscience/controls/ports/Ports.kt

@@ -0,0 +1,34 @@
+package space.kscience.controls.ports
+
+import space.kscience.dataforge.context.*
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.string
+import kotlin.reflect.KClass
+
+public class Ports : AbstractPlugin() {
+
+    override val tag: PluginTag get() = Companion.tag
+
+    private val portFactories by lazy {
+        context.gather<PortFactory>(PortFactory.TYPE)
+    }
+
+    private val portCache = mutableMapOf<Meta, Port>()
+
+    public fun buildPort(meta: Meta): Port = portCache.getOrPut(meta) {
+        val type by meta.string { error("Port type is not defined") }
+        val factory = portFactories.values.firstOrNull { it.type == type }
+            ?: error("Port factory for type $type not found")
+        factory.build(context, meta)
+    }
+
+    public companion object : PluginFactory<Ports> {
+
+        override val tag: PluginTag = PluginTag("controls.ports", group = PluginTag.DATAFORGE_GROUP)
+
+        override val type: KClass<out Ports> = Ports::class
+
+        override fun build(context: Context, meta: Meta): Ports = Ports()
+
+    }
+}

controls-core/src/commonMain/kotlin/space/kscience/controls/ports/SynchronousPort.kt

@@ -0,0 +1,42 @@
+package space.kscience.controls.ports
+
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+
+/**
+ * A port handler for synchronous (request-response) communication with a port. Only one request could be active at a time (others are suspended.
+ * The handler does not guarantee exclusive access to the port so the user mush ensure that no other controller handles port at the moment.
+ */
+public class SynchronousPort(public val port: Port, private val mutex: Mutex) : Port by port {
+    /**
+     * Send a single message and wait for the flow of respond messages.
+     */
+    public suspend fun <R> respond(data: ByteArray, transform: suspend Flow<ByteArray>.() -> R): R = mutex.withLock {
+        port.send(data)
+        transform(port.receiving())
+    }
+}
+
+/**
+ * Provide a synchronous wrapper for a port
+ */
+public fun Port.synchronous(mutex: Mutex = Mutex()): SynchronousPort = SynchronousPort(this, mutex)
+
+/**
+ * Send request and read incoming data blocks until the delimiter is encountered
+ */
+public suspend fun SynchronousPort.respondWithDelimiter(
+    data: ByteArray,
+    delimiter: ByteArray,
+): ByteArray = respond(data) {
+    withDelimiter(delimiter).first()
+}
+
+public suspend fun SynchronousPort.respondStringWithDelimiter(
+    data: String,
+    delimiter: String,
+): String = respond(data.encodeToByteArray()) {
+    withStringDelimiter(delimiter).first()
+}

controls-core/src/commonMain/kotlin/space/kscience/controls/ports/phrases.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import io.ktor.utils.io.core.BytePacketBuilder
 import io.ktor.utils.io.core.readBytes
@@ -10,10 +10,10 @@ import kotlinx.coroutines.flow.transform
 /**
  * Transform byte fragments into complete phrases using given delimiter. Not thread safe.
  */
-public fun Flow<ByteArray>.withDelimiter(delimiter: ByteArray, expectedMessageSize: Int = 32): Flow<ByteArray> {
+public fun Flow<ByteArray>.withDelimiter(delimiter: ByteArray): Flow<ByteArray> {
     require(delimiter.isNotEmpty()) { "Delimiter must not be empty" }
 
-    val output = BytePacketBuilder(expectedMessageSize)
+    val output = BytePacketBuilder()
     var matcherPosition = 0
 
     return transform { chunk ->
@@ -40,12 +40,11 @@ public fun Flow<ByteArray>.withDelimiter(delimiter: ByteArray, expectedMessageSi
 /**
  * Transform byte fragments into utf-8 phrases using utf-8 delimiter
  */
-public fun Flow<ByteArray>.withDelimiter(delimiter: String, expectedMessageSize: Int = 32): Flow<String> {
+public fun Flow<ByteArray>.withStringDelimiter(delimiter: String): Flow<String> {
-    return withDelimiter(delimiter.encodeToByteArray(), expectedMessageSize).map { it.decodeToString() }
+    return withDelimiter(delimiter.encodeToByteArray()).map { it.decodeToString() }
 }
 
 /**
  * A flow of delimited phrases
  */
-public suspend fun Port.delimitedIncoming(delimiter: ByteArray, expectedMessageSize: Int = 32): Flow<ByteArray> =
+public fun Port.delimitedIncoming(delimiter: ByteArray): Flow<ByteArray> = receiving().withDelimiter(delimiter)
-    receiving().withDelimiter(delimiter, expectedMessageSize)

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/DeviceBase.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.properties
+package space.kscience.controls.spec
 
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
@@ -7,30 +7,28 @@ import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
-import ru.mipt.npm.controls.api.*
+import space.kscience.controls.api.*
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.meta.Meta
 import kotlin.coroutines.CoroutineContext
 
-/**
+
- * A device generated from specification
- * @param D recursive self-type for properties and actions
- */
 @OptIn(InternalDeviceAPI::class)
-public open class DeviceBySpec<D : DeviceBySpec<D>>(
+public abstract class DeviceBase<D : DeviceBase<D>>(
-    public val spec: DeviceSpec<D>,
+    override val context: Context = Global,
-    context: Context = Global,
+    override val meta: Meta = Meta.EMPTY,
-    meta: Meta = Meta.EMPTY
 ) : Device {
-    override var context: Context = context
-        internal set
 
-    public var meta: Meta = meta
+    /**
-        internal set
+     * Collection of property specifications
+     */
+    public abstract val properties: Map<String, DevicePropertySpec<D, *>>
 
-    public val properties: Map<String, DevicePropertySpec<D, *>> get() = spec.properties
+    /**
-    public val actions: Map<String, DeviceActionSpec<D, *, *>> get() = spec.actions
+     * Collection of action specifications
+     */
+    public abstract val actions: Map<String, DeviceActionSpec<D, *, *>>
 
     override val propertyDescriptors: Collection<PropertyDescriptor>
         get() = properties.values.map { it.descriptor }
@@ -42,6 +40,9 @@ public open class DeviceBySpec<D : DeviceBySpec<D>>(
         context.coroutineContext + SupervisorJob(context.coroutineContext[Job])
     }
 
+    /**
+     * Logical state store
+     */
     private val logicalState: HashMap<String, Meta?> = HashMap()
 
     private val sharedMessageFlow: MutableSharedFlow<DeviceMessage> = MutableSharedFlow()
@@ -68,6 +69,13 @@ public open class DeviceBySpec<D : DeviceBySpec<D>>(
         }
     }
 
+    /**
+     * Update logical state using given [spec] and its convertor
+     */
+    protected suspend fun <T> updateLogical(spec: DevicePropertySpec<D, T>, value: T) {
+        updateLogical(spec.name, spec.converter.objectToMeta(value))
+    }
+
     /**
      * Force read physical value and push an update if it is changed. It does not matter if logical state is present.
      * The logical state is updated after read
@@ -98,17 +106,21 @@ public open class DeviceBySpec<D : DeviceBySpec<D>>(
     }
 
     override suspend fun execute(action: String, argument: Meta?): Meta? =
-        actions[action]?.executeMeta(self, argument)
+        actions[action]?.executeWithMeta(self, argument)
 
     /**
-     * Read typed value and update/push event if needed
+     * Read typed value and update/push event if needed.
+     * Return null if property read is not successful or property is undefined.
      */
-    public suspend fun <T> DevicePropertySpec<D, T>.read(): T {
+    public suspend fun <T> DevicePropertySpec<D, T>.readOrNull(): T? {
-        val res = read(self)
+        val res = read(self) ?: return null
         updateLogical(name, converter.objectToMeta(res))
         return res
     }
 
+    public suspend fun <T> DevicePropertySpec<D, T>.read(): T =
+        readOrNull() ?: error("Failed to read property $name state")
+
     public fun <T> DevicePropertySpec<D, T>.get(): T? = getProperty(name)?.let(converter::metaToObject)
 
     /**
@@ -123,19 +135,37 @@ public open class DeviceBySpec<D : DeviceBySpec<D>>(
         }
     }
 
-    override fun close() {
+    /**
-        with(spec) { self.onShutdown() }
+     * Reset logical state of a property
+     */
+    public suspend fun DevicePropertySpec<D, *>.invalidate() {
+        invalidate(name)
+    }
+
+    public suspend operator fun <I, O> DeviceActionSpec<D, I, O>.invoke(input: I? = null): O? = execute(self, input)
+
+}
+
+/**
+ * A device generated from specification
+ * @param D recursive self-type for properties and actions
+ */
+public open class DeviceBySpec<D : DeviceBySpec<D>>(
+    public val spec: DeviceSpec<in D>,
+    context: Context = Global,
+    meta: Meta = Meta.EMPTY,
+) : DeviceBase<D>(context, meta) {
+    override val properties: Map<String, DevicePropertySpec<D, *>> get() = spec.properties
+    override val actions: Map<String, DeviceActionSpec<D, *, *>> get() = spec.actions
+
+    override suspend fun open(): Unit = with(spec) {
+        super.open()
+        self.onOpen()
+    }
+
+    override fun close(): Unit = with(spec) {
+        self.onClose()
         super.close()
     }
 }
 
-public suspend fun <D : DeviceBySpec<D>, T : Any> D.read(
-    propertySpec: DevicePropertySpec<D, T>
-): T = propertySpec.read()
-
-public fun <D : DeviceBySpec<D>, T> D.write(
-    propertySpec: WritableDevicePropertySpec<D, T>,
-    value: T
-): Job = launch {
-    propertySpec.write(value)
-}

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/DeviceMetaPropertySpec.kt

@@ -0,0 +1,15 @@
+package space.kscience.controls.spec
+
+import space.kscience.controls.api.Device
+import space.kscience.controls.api.PropertyDescriptor
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.transformations.MetaConverter
+
+internal object DeviceMetaPropertySpec: DevicePropertySpec<Device,Meta> {
+    override val descriptor: PropertyDescriptor = PropertyDescriptor("@meta")
+
+    override val converter: MetaConverter<Meta> = MetaConverter.meta
+
+    @InternalDeviceAPI
+    override suspend fun read(device: Device): Meta = device.meta
+}

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/DevicePropertySpec.kt

@@ -0,0 +1,129 @@
+package space.kscience.controls.spec
+
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.filterIsInstance
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import space.kscience.controls.api.ActionDescriptor
+import space.kscience.controls.api.Device
+import space.kscience.controls.api.PropertyChangedMessage
+import space.kscience.controls.api.PropertyDescriptor
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.transformations.MetaConverter
+
+
+/**
+ * This API is internal and should not be used in user code
+ */
+@RequiresOptIn("This API should not be called outside of Device internals")
+public annotation class InternalDeviceAPI
+
+public interface DevicePropertySpec<in D : Device, T> {
+    /**
+     * Property descriptor
+     */
+    public val descriptor: PropertyDescriptor
+
+    /**
+     * Meta item converter for resulting type
+     */
+    public val converter: MetaConverter<T>
+
+    /**
+     * Read physical value from the given [device]
+     */
+    @InternalDeviceAPI
+    public suspend fun read(device: D): T?
+}
+
+/**
+ * Property name, should be unique in device
+ */
+public val DevicePropertySpec<*, *>.name: String get() = descriptor.name
+
+@OptIn(InternalDeviceAPI::class)
+public suspend fun <D : Device, T> DevicePropertySpec<D, T>.readMeta(device: D): Meta? =
+    read(device)?.let(converter::objectToMeta)
+
+
+public interface WritableDevicePropertySpec<in D : Device, T> : DevicePropertySpec<D, T> {
+    /**
+     * Write physical value to a device
+     */
+    @InternalDeviceAPI
+    public suspend fun write(device: D, value: T)
+}
+
+@OptIn(InternalDeviceAPI::class)
+public suspend fun <D : Device, T> WritableDevicePropertySpec<D, T>.writeMeta(device: D, item: Meta) {
+    write(device, converter.metaToObject(item) ?: error("Meta $item could not be read with $converter"))
+}
+
+public interface DeviceActionSpec<in D : Device, I, O> {
+    /**
+     * Action descriptor
+     */
+    public val descriptor: ActionDescriptor
+
+    public val inputConverter: MetaConverter<I>
+
+    public val outputConverter: MetaConverter<O>
+
+    /**
+     * Execute action on a device
+     */
+    public suspend fun execute(device: D, input: I?): O?
+}
+
+/**
+ * Action name, should be unique in device
+ */
+public val DeviceActionSpec<*, *, *>.name: String get() = descriptor.name
+
+public suspend fun <D : Device, I, O> DeviceActionSpec<D, I, O>.executeWithMeta(
+    device: D,
+    item: Meta?,
+): Meta? {
+    val arg = item?.let { inputConverter.metaToObject(item) }
+    val res = execute(device, arg)
+    return res?.let { outputConverter.objectToMeta(res) }
+}
+
+
+public suspend fun <D : DeviceBase<D>, T : Any> D.read(
+    propertySpec: DevicePropertySpec<D, T>,
+): T = propertySpec.read()
+
+public suspend fun <D : Device, T : Any> D.read(
+    propertySpec: DevicePropertySpec<D, T>,
+): T = propertySpec.converter.metaToObject(readProperty(propertySpec.name))
+    ?: error("Property meta converter returned null")
+
+public fun <D : Device, T> D.write(
+    propertySpec: WritableDevicePropertySpec<D, T>,
+    value: T,
+): Job = launch {
+    writeProperty(propertySpec.name, propertySpec.converter.objectToMeta(value))
+}
+
+public fun <D : DeviceBase<D>, T> D.write(
+    propertySpec: WritableDevicePropertySpec<D, T>,
+    value: T,
+): Job = launch {
+    propertySpec.write(value)
+}
+
+/**
+ * A type safe property change listener
+ */
+public fun <D : Device, T> Device.onPropertyChange(
+    spec: DevicePropertySpec<D, T>,
+    callback: suspend PropertyChangedMessage.(T?) -> Unit,
+): Job = messageFlow
+    .filterIsInstance<PropertyChangedMessage>()
+    .filter { it.property == spec.name }
+    .onEach { change ->
+        change.callback(spec.converter.metaToObject(change.value))
+    }.launchIn(this)

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/DeviceSpec.kt

@@ -1,10 +1,9 @@
-package ru.mipt.npm.controls.properties
+package space.kscience.controls.spec
 
 import kotlinx.coroutines.withContext
-import ru.mipt.npm.controls.api.ActionDescriptor
+import space.kscience.controls.api.ActionDescriptor
-import ru.mipt.npm.controls.api.PropertyDescriptor
+import space.kscience.controls.api.Device
-import space.kscience.dataforge.context.Context
+import space.kscience.controls.api.PropertyDescriptor
-import space.kscience.dataforge.context.Factory
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.transformations.MetaConverter
 import kotlin.properties.PropertyDelegateProvider
@@ -14,28 +13,37 @@ import kotlin.reflect.KProperty
 import kotlin.reflect.KProperty1
 
 @OptIn(InternalDeviceAPI::class)
-public abstract class DeviceSpec<D : DeviceBySpec<D>>(
+public abstract class DeviceSpec<D : Device> {
-    private val buildDevice: () -> D
+    //initializing meta property for everyone
-) : Factory<D> {
+    private val _properties = hashMapOf<String, DevicePropertySpec<D, *>>(
-    private val _properties = HashMap<String, DevicePropertySpec<D, *>>()
+        DeviceMetaPropertySpec.name to DeviceMetaPropertySpec
+    )
     public val properties: Map<String, DevicePropertySpec<D, *>> get() = _properties
 
     private val _actions = HashMap<String, DeviceActionSpec<D, *, *>>()
     public val actions: Map<String, DeviceActionSpec<D, *, *>> get() = _actions
 
-    public fun <T : Any, P : DevicePropertySpec<D, T>> registerProperty(deviceProperty: P): P {
+
+    public open suspend fun D.onOpen() {
+    }
+
+    public open fun D.onClose() {
+    }
+
+
+    public fun <T, P : DevicePropertySpec<D, T>> registerProperty(deviceProperty: P): P {
         _properties[deviceProperty.name] = deviceProperty
         return deviceProperty
     }
 
-    public fun <T : Any> registerProperty(
+    public fun <T> registerProperty(
         converter: MetaConverter<T>,
         readOnlyProperty: KProperty1<D, T>,
-        descriptorBuilder: PropertyDescriptor.() -> Unit = {}
+        descriptorBuilder: PropertyDescriptor.() -> Unit = {},
     ): DevicePropertySpec<D, T> {
         val deviceProperty = object : DevicePropertySpec<D, T> {
-            override val name: String = readOnlyProperty.name
+            override val descriptor: PropertyDescriptor =
-            override val descriptor: PropertyDescriptor = PropertyDescriptor(this.name).apply(descriptorBuilder)
+                PropertyDescriptor(readOnlyProperty.name).apply(descriptorBuilder)
             override val converter: MetaConverter<T> = converter
             override suspend fun read(device: D): T =
                 withContext(device.coroutineContext) { readOnlyProperty.get(device) }
@@ -43,16 +51,39 @@ public abstract class DeviceSpec<D : DeviceBySpec<D>>(
         return registerProperty(deviceProperty)
     }
 
-    public fun <T : Any> property(
+    public fun <T> property(
+        converter: MetaConverter<T>,
+        readOnlyProperty: KProperty1<D, T>,
+        descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<Any?, DevicePropertySpec<D, T>>> =
+        PropertyDelegateProvider { _, property ->
+            val deviceProperty = object : DevicePropertySpec<D, T> {
+                override val descriptor: PropertyDescriptor = PropertyDescriptor(property.name).apply {
+                    //TODO add type from converter
+                    writable = true
+                }.apply(descriptorBuilder)
+
+                override val converter: MetaConverter<T> = converter
+
+                override suspend fun read(device: D): T = withContext(device.coroutineContext) {
+                    readOnlyProperty.get(device)
+                }
+            }
+            registerProperty(deviceProperty)
+            ReadOnlyProperty { _, _ ->
+                deviceProperty
+            }
+        }
+
+    public fun <T> mutableProperty(
         converter: MetaConverter<T>,
         readWriteProperty: KMutableProperty1<D, T>,
-        descriptorBuilder: PropertyDescriptor.() -> Unit = {}
+        descriptorBuilder: PropertyDescriptor.() -> Unit = {},
     ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<Any?, WritableDevicePropertySpec<D, T>>> =
         PropertyDelegateProvider { _, property ->
             val deviceProperty = object : WritableDevicePropertySpec<D, T> {
-                override val name: String = property.name
 
-                override val descriptor: PropertyDescriptor = PropertyDescriptor(name).apply {
+                override val descriptor: PropertyDescriptor = PropertyDescriptor(property.name).apply {
                     //TODO add type from converter
                     writable = true
                 }.apply(descriptorBuilder)
@@ -73,20 +104,19 @@ public abstract class DeviceSpec<D : DeviceBySpec<D>>(
             }
         }
 
-    public fun <T : Any> property(
+    public fun <T> property(
         converter: MetaConverter<T>,
-        name: String? = null,
         descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-        read: suspend D.() -> T
+        name: String? = null,
+        read: suspend D.() -> T?,
     ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, T>>> =
         PropertyDelegateProvider { _: DeviceSpec<D>, property ->
             val propertyName = name ?: property.name
             val deviceProperty = object : DevicePropertySpec<D, T> {
-                override val name: String = propertyName
+                override val descriptor: PropertyDescriptor = PropertyDescriptor(propertyName).apply(descriptorBuilder)
-                override val descriptor: PropertyDescriptor = PropertyDescriptor(this.name).apply(descriptorBuilder)
                 override val converter: MetaConverter<T> = converter
 
-                override suspend fun read(device: D): T = withContext(device.coroutineContext) { device.read() }
+                override suspend fun read(device: D): T? = withContext(device.coroutineContext) { device.read() }
             }
             registerProperty(deviceProperty)
             ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, T>> { _, _ ->
@@ -94,21 +124,20 @@ public abstract class DeviceSpec<D : DeviceBySpec<D>>(
             }
         }
 
-    public fun <T : Any> property(
+    public fun <T> mutableProperty(
         converter: MetaConverter<T>,
-        name: String? = null,
         descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-        read: suspend D.() -> T,
+        name: String? = null,
-        write: suspend D.(T) -> Unit
+        read: suspend D.() -> T?,
+        write: suspend D.(T) -> Unit,
     ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, T>>> =
         PropertyDelegateProvider { _: DeviceSpec<D>, property: KProperty<*> ->
             val propertyName = name ?: property.name
             val deviceProperty = object : WritableDevicePropertySpec<D, T> {
-                override val name: String = propertyName
+                override val descriptor: PropertyDescriptor = PropertyDescriptor(propertyName).apply(descriptorBuilder)
-                override val descriptor: PropertyDescriptor = PropertyDescriptor(this.name).apply(descriptorBuilder)
                 override val converter: MetaConverter<T> = converter
 
-                override suspend fun read(device: D): T = withContext(device.coroutineContext) { device.read() }
+                override suspend fun read(device: D): T? = withContext(device.coroutineContext) { device.read() }
 
                 override suspend fun write(device: D, value: T): Unit = withContext(device.coroutineContext) {
                     device.write(value)
@@ -121,22 +150,21 @@ public abstract class DeviceSpec<D : DeviceBySpec<D>>(
         }
 
 
-    public fun <I : Any, O : Any> registerAction(deviceAction: DeviceActionSpec<D, I, O>): DeviceActionSpec<D, I, O> {
+    public fun <I, O> registerAction(deviceAction: DeviceActionSpec<D, I, O>): DeviceActionSpec<D, I, O> {
         _actions[deviceAction.name] = deviceAction
         return deviceAction
     }
 
-    public fun <I : Any, O : Any> action(
+    public fun <I, O> action(
         inputConverter: MetaConverter<I>,
         outputConverter: MetaConverter<O>,
-        name: String? = null,
         descriptorBuilder: ActionDescriptor.() -> Unit = {},
-        execute: suspend D.(I?) -> O?
+        name: String? = null,
+        execute: suspend D.(I?) -> O?,
     ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, I, O>>> =
         PropertyDelegateProvider { _: DeviceSpec<D>, property ->
             val actionName = name ?: property.name
             val deviceAction = object : DeviceActionSpec<D, I, O> {
-                override val name: String = actionName
                 override val descriptor: ActionDescriptor = ActionDescriptor(actionName).apply(descriptorBuilder)
 
                 override val inputConverter: MetaConverter<I> = inputConverter
@@ -153,19 +181,68 @@ public abstract class DeviceSpec<D : DeviceBySpec<D>>(
         }
 
     /**
-     * The function is executed right after device initialization is finished
+     * An action that takes [Meta] and returns [Meta]. No conversions are done
      */
-    public open fun D.onStartup() {}
+    public fun metaAction(
+        descriptorBuilder: ActionDescriptor.() -> Unit = {},
+        name: String? = null,
+        execute: suspend D.(Meta?) -> Meta?,
+    ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, Meta, Meta>>> =
+        action(
+            MetaConverter.Companion.meta,
+            MetaConverter.Companion.meta,
+            descriptorBuilder,
+            name
+        ) {
+            execute(it)
+        }
 
     /**
-     * The function is executed before device is shut down
+     * An action that takes no parameters and returns no values
      */
-    public open fun D.onShutdown() {}
+    public fun unitAction(
-
+        descriptorBuilder: ActionDescriptor.() -> Unit = {},
-
+        name: String? = null,
-    override fun invoke(meta: Meta, context: Context): D = buildDevice().apply {
+        execute: suspend D.() -> Unit,
-        this.context = context
+    ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DeviceActionSpec<D, Meta, Meta>>> =
-        this.meta = meta
+        action(
-        onStartup()
+            MetaConverter.Companion.meta,
-    }
+            MetaConverter.Companion.meta,
+            descriptorBuilder,
+            name
+        ) {
+            execute()
+            null
+        }
 }
+
+
+/**
+ * Register a mutable logical property for a device
+ */
+@OptIn(InternalDeviceAPI::class)
+public fun <T, D : DeviceBase<D>> DeviceSpec<D>.logicalProperty(
+    converter: MetaConverter<T>,
+    descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    name: String? = null,
+): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<Any?, WritableDevicePropertySpec<D, T>>> =
+    PropertyDelegateProvider { _, property ->
+        val deviceProperty = object : WritableDevicePropertySpec<D, T> {
+            val propertyName = name ?: property.name
+            override val descriptor: PropertyDescriptor = PropertyDescriptor(propertyName).apply {
+                //TODO add type from converter
+                writable = true
+            }.apply(descriptorBuilder)
+
+            override val converter: MetaConverter<T> = converter
+
+            override suspend fun read(device: D): T? = device.getProperty(propertyName)?.let(converter::metaToObject)
+
+            override suspend fun write(device: D, value: T): Unit =
+                device.writeProperty(propertyName, converter.objectToMeta(value))
+        }
+        registerProperty(deviceProperty)
+        ReadOnlyProperty { _, _ ->
+            deviceProperty
+        }
+    }

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/deviceExtensions.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.properties
+package space.kscience.controls.spec
 
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
@@ -14,7 +14,7 @@ import kotlin.time.Duration
  *
  * The flow is canceled when the device scope is canceled
  */
-public fun <D : DeviceBySpec<D>, R> D.readRecurring(interval: Duration, reader: suspend D.() -> R): Flow<R> = flow {
+public fun <D : DeviceBase<D>, R> D.readRecurring(interval: Duration, reader: suspend D.() -> R): Flow<R> = flow {
     while (isActive) {
         kotlinx.coroutines.delay(interval)
         emit(reader())
@@ -22,9 +22,9 @@ public fun <D : DeviceBySpec<D>, R> D.readRecurring(interval: Duration, reader:
 }
 
 /**
- * Do a recurring task on a device. The task could
+ * Do a recurring (with a fixed delay) task on a device.
  */
-public fun <D : DeviceBySpec<D>> D.doRecurring(interval: Duration, task: suspend D.() -> Unit): Job = launch {
+public fun <D : DeviceBase<D>> D.doRecurring(interval: Duration, task: suspend D.() -> Unit): Job = launch {
     while (isActive) {
         kotlinx.coroutines.delay(interval)
         task()

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/misc.kt

@@ -1,12 +1,7 @@
-package ru.mipt.npm.controls.base
+package space.kscience.controls.spec
 
-import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.*
-import space.kscience.dataforge.meta.double
-import space.kscience.dataforge.meta.enum
-import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.transformations.MetaConverter
-import space.kscience.dataforge.values.asValue
-import space.kscience.dataforge.values.double
 import kotlin.time.Duration
 import kotlin.time.DurationUnit
 import kotlin.time.toDuration

controls-core/src/commonMain/kotlin/space/kscience/controls/spec/propertySpecDelegates.kt

@@ -1,28 +1,28 @@
-package ru.mipt.npm.controls.properties
+package space.kscience.controls.spec
 
-import ru.mipt.npm.controls.api.PropertyDescriptor
+import space.kscience.controls.api.PropertyDescriptor
-import ru.mipt.npm.controls.api.metaDescriptor
+import space.kscience.controls.api.metaDescriptor
 import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.ValueType
 import space.kscience.dataforge.meta.transformations.MetaConverter
-import space.kscience.dataforge.values.ValueType
 import kotlin.properties.PropertyDelegateProvider
 import kotlin.properties.ReadOnlyProperty
 
 //read only delegates
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.booleanProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.booleanProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> Boolean
+    name: String? = null,
+    read: suspend D.() -> Boolean?
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, Boolean>>> = property(
     MetaConverter.boolean,
-    name,
     {
         metaDescriptor {
             type(ValueType.BOOLEAN)
         }
         descriptorBuilder()
     },
+    name,
     read
 )
 
@@ -35,110 +35,110 @@ private inline fun numberDescriptor(
     descriptorBuilder()
 }
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.numberProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.numberProperty(
     name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> Number
+    read: suspend D.() -> Number?
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, Number>>> = property(
     MetaConverter.number,
-    name,
     numberDescriptor(descriptorBuilder),
+    name,
     read
 )
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.doubleProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.doubleProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> Double
+    name: String? = null,
+    read: suspend D.() -> Double?
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, Double>>> = property(
     MetaConverter.double,
-    name,
     numberDescriptor(descriptorBuilder),
+    name,
     read
 )
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.stringProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.stringProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> String
+    name: String? = null,
+    read: suspend D.() -> String?
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, String>>> = property(
     MetaConverter.string,
-    name,
     {
         metaDescriptor {
             type(ValueType.STRING)
         }
         descriptorBuilder()
     },
+    name,
     read
 )
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.metaProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.metaProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> Meta
+    name: String? = null,
+    read: suspend D.() -> Meta?
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, DevicePropertySpec<D, Meta>>> = property(
     MetaConverter.meta,
-    name,
     {
         metaDescriptor {
             type(ValueType.STRING)
         }
         descriptorBuilder()
     },
+    name,
     read
 )
 
 //read-write delegates
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.booleanProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.booleanProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
-    read: suspend D.() -> Boolean,
+    name: String? = null,
+    read: suspend D.() -> Boolean?,
     write: suspend D.(Boolean) -> Unit
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, Boolean>>> =
-    property(
+    mutableProperty(
         MetaConverter.boolean,
-        name,
         {
             metaDescriptor {
                 type(ValueType.BOOLEAN)
             }
             descriptorBuilder()
         },
+        name,
         read,
         write
     )
 
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.numberProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.numberProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    name: String? = null,
     read: suspend D.() -> Number,
     write: suspend D.(Number) -> Unit
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, Number>>> =
-    property(MetaConverter.number, name, numberDescriptor(descriptorBuilder), read, write)
+    mutableProperty(MetaConverter.number, numberDescriptor(descriptorBuilder), name, read, write)
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.doubleProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.doubleProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    name: String? = null,
     read: suspend D.() -> Double,
     write: suspend D.(Double) -> Unit
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, Double>>> =
-    property(MetaConverter.double, name, numberDescriptor(descriptorBuilder), read, write)
+    mutableProperty(MetaConverter.double, numberDescriptor(descriptorBuilder), name, read, write)
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.stringProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.stringProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    name: String? = null,
     read: suspend D.() -> String,
     write: suspend D.(String) -> Unit
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, String>>> =
-    property(MetaConverter.string, name, descriptorBuilder, read, write)
+    mutableProperty(MetaConverter.string, descriptorBuilder, name, read, write)
 
-public fun <D : DeviceBySpec<D>> DeviceSpec<D>.metaProperty(
+public fun <D : DeviceBase<D>> DeviceSpec<D>.metaProperty(
-    name: String? = null,
     descriptorBuilder: PropertyDescriptor.() -> Unit = {},
+    name: String? = null,
     read: suspend D.() -> Meta,
     write: suspend D.(Meta) -> Unit
 ): PropertyDelegateProvider<DeviceSpec<D>, ReadOnlyProperty<DeviceSpec<D>, WritableDevicePropertySpec<D, Meta>>> =
-    property(MetaConverter.meta, name, descriptorBuilder, read, write)
+    mutableProperty(MetaConverter.meta, descriptorBuilder, name, read, write)

controls-core/src/jvmMain/kotlin/ru/mipt/npm/controls/properties/delegates.kt

@@ -1,89 +0,0 @@
-package ru.mipt.npm.controls.controllers
-
-import kotlinx.coroutines.runBlocking
-import ru.mipt.npm.controls.base.*
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.transformations.MetaConverter
-import kotlin.properties.ReadOnlyProperty
-import kotlin.properties.ReadWriteProperty
-import kotlin.reflect.KProperty
-import kotlin.time.Duration
-
-/**
- * Blocking read of the value
- */
-public operator fun ReadOnlyDeviceProperty.getValue(thisRef: Any?, property: KProperty<*>): Meta =
-    runBlocking(scope.coroutineContext) {
-        read()
-    }
-
-public operator fun <T: Any> TypedReadOnlyDeviceProperty<T>.getValue(thisRef: Any?, property: KProperty<*>): T =
-    runBlocking(scope.coroutineContext) {
-        readTyped()
-    }
-
-public operator fun DeviceProperty.setValue(thisRef: Any?, property: KProperty<*>, value: Meta) {
-    this.value = value
-}
-
-public operator fun  <T: Any> TypedDeviceProperty<T>.setValue(thisRef: Any?, property: KProperty<*>, value: T) {
-    this.typedValue = value
-}
-
-public fun <T : Any> ReadOnlyDeviceProperty.convert(
-    metaConverter: MetaConverter<T>,
-    forceRead: Boolean,
-): ReadOnlyProperty<Any?, T> {
-    return ReadOnlyProperty { _, _ ->
-        runBlocking(scope.coroutineContext) {
-            val meta = read(forceRead)
-            metaConverter.metaToObject(meta)?: error("Meta $meta could not be converted by $metaConverter")
-        }
-    }
-}
-
-public fun <T : Any> DeviceProperty.convert(
-    metaConverter: MetaConverter<T>,
-    forceRead: Boolean,
-): ReadWriteProperty<Any?, T> {
-    return object : ReadWriteProperty<Any?, T> {
-        override fun getValue(thisRef: Any?, property: KProperty<*>): T = runBlocking(scope.coroutineContext) {
-            val meta = read(forceRead)
-            metaConverter.metaToObject(meta)?: error("Meta $meta could not be converted by $metaConverter")
-        }
-
-        override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
-            this@convert.setValue(thisRef, property, value.let { metaConverter.objectToMeta(it) })
-        }
-    }
-}
-
-public fun ReadOnlyDeviceProperty.double(forceRead: Boolean = false): ReadOnlyProperty<Any?, Double> =
-    convert(MetaConverter.double, forceRead)
-
-public fun DeviceProperty.double(forceRead: Boolean = false): ReadWriteProperty<Any?, Double> =
-    convert(MetaConverter.double, forceRead)
-
-public fun ReadOnlyDeviceProperty.int(forceRead: Boolean = false): ReadOnlyProperty<Any?, Int> =
-    convert(MetaConverter.int, forceRead)
-
-public fun DeviceProperty.int(forceRead: Boolean = false): ReadWriteProperty<Any?, Int> =
-    convert(MetaConverter.int, forceRead)
-
-public fun ReadOnlyDeviceProperty.string(forceRead: Boolean = false): ReadOnlyProperty<Any?, String> =
-    convert(MetaConverter.string, forceRead)
-
-public fun DeviceProperty.string(forceRead: Boolean = false): ReadWriteProperty<Any?, String> =
-    convert(MetaConverter.string, forceRead)
-
-public fun ReadOnlyDeviceProperty.boolean(forceRead: Boolean = false): ReadOnlyProperty<Any?, Boolean> =
-    convert(MetaConverter.boolean, forceRead)
-
-public fun DeviceProperty.boolean(forceRead: Boolean = false): ReadWriteProperty<Any?, Boolean> =
-    convert(MetaConverter.boolean, forceRead)
-
-public fun ReadOnlyDeviceProperty.duration(forceRead: Boolean = false): ReadOnlyProperty<Any?, Duration> =
-    convert(DurationConverter, forceRead)
-
-public fun DeviceProperty.duration(forceRead: Boolean = false): ReadWriteProperty<Any?, Duration> =
-    convert(DurationConverter, forceRead)

controls-core/src/jvmMain/kotlin/ru/mipt/npm/controls/properties/getDeviceProperty.kt

@@ -1,10 +0,0 @@
-package ru.mipt.npm.controls.properties
-
-import kotlinx.coroutines.runBlocking
-
-/**
- * Blocking property get call
- */
-public operator fun <D : DeviceBySpec<D>, T : Any> D.get(
-    propertySpec: DevicePropertySpec<D, T>
-): T = runBlocking { read(propertySpec) }

controls-core/src/jvmMain/kotlin/space/kscience/controls/misc/javaTimeMeta.kt

@@ -1,9 +1,8 @@
-package ru.mipt.npm.controls.misc
+package space.kscience.controls.misc
 
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.long
-import space.kscience.dataforge.values.long
 import java.time.Instant
 
 // TODO move to core

controls-core/src/jvmMain/kotlin/space/kscience/controls/ports/TcpPort.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import kotlinx.coroutines.*
 import space.kscience.dataforge.context.Context
@@ -52,19 +52,20 @@ public class TcpPort private constructor(
                 }
                 if (num < 0) cancel("The input channel is exhausted")
             } catch (ex: Exception) {
-                logger.error(ex){"Channel read error"}
+                logger.error(ex) { "Channel read error" }
                 delay(1000)
             }
         }
     }
 
-    override suspend fun write(data: ByteArray) {
+    override suspend fun write(data: ByteArray): Unit = withContext(Dispatchers.IO){
         futureChannel.await().write(ByteBuffer.wrap(data))
     }
 
+    @OptIn(ExperimentalCoroutinesApi::class)
     override fun close() {
         listenerJob.cancel()
-        if(futureChannel.isCompleted){
+        if (futureChannel.isCompleted) {
             futureChannel.getCompleted().close()
         } else {
             futureChannel.cancel()
@@ -73,6 +74,9 @@ public class TcpPort private constructor(
     }
 
     public companion object : PortFactory {
+
+        override val type: String = "tcp"
+
         public fun open(
             context: Context,
             host: String,
@@ -82,7 +86,7 @@ public class TcpPort private constructor(
             return TcpPort(context, host, port, coroutineContext)
         }
 
-        override fun invoke(meta: Meta, context: Context): Port {
+        override fun build(context: Context, meta: Meta): Port {
             val host = meta["host"].string ?: "localhost"
             val port = meta["port"].int ?: error("Port value for TCP port is not defined in $meta")
             return open(context, host, port)

controls-core/src/jvmMain/kotlin/space/kscience/controls/ports/TcpPortPlugin.kt

@@ -0,0 +1,30 @@
+package space.kscience.controls.ports
+
+import space.kscience.dataforge.context.AbstractPlugin
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.PluginFactory
+import space.kscience.dataforge.context.PluginTag
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import kotlin.reflect.KClass
+
+public class TcpPortPlugin : AbstractPlugin() {
+
+    override val tag: PluginTag get() = Companion.tag
+
+    override fun content(target: String): Map<Name, Any> = when(target){
+        PortFactory.TYPE -> mapOf(Name.EMPTY to TcpPort)
+        else -> emptyMap()
+    }
+
+    public companion object : PluginFactory<TcpPortPlugin> {
+
+        override val tag: PluginTag = PluginTag("controls.ports.tcp", group = PluginTag.DATAFORGE_GROUP)
+
+        override val type: KClass<out TcpPortPlugin> = TcpPortPlugin::class
+
+        override fun build(context: Context, meta: Meta): TcpPortPlugin = TcpPortPlugin()
+
+    }
+
+}

controls-core/src/jvmMain/kotlin/space/kscience/controls/spec/getDeviceProperty.kt

@@ -0,0 +1,10 @@
+package space.kscience.controls.spec
+
+import kotlinx.coroutines.runBlocking
+
+/**
+ * Blocking property get call
+ */
+public operator fun <D : DeviceBase<D>, T : Any> D.get(
+    propertySpec: DevicePropertySpec<D, T>
+): T? = runBlocking { read(propertySpec) }

controls-core/src/jvmTest/kotlin/space/kscience/controls/ports/PortIOTest.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.map

controls-ktor-tcp/build.gradle.kts

@@ -0,0 +1,10 @@
+plugins {
+    id("space.kscience.gradle.jvm")
+}
+
+val ktorVersion: String by rootProject.extra
+
+dependencies {
+    api(projects.controlsCore)
+    api("io.ktor:ktor-network:$ktorVersion")
+}

controls-ktor-tcp/src/main/kotlin/space/kscience/controls/ports/KtorTcpPort.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.ports
+package space.kscience.controls.ports
 
 import io.ktor.network.selector.ActorSelectorManager
 import io.ktor.network.sockets.aSocket
@@ -16,7 +16,6 @@ import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.get
 import space.kscience.dataforge.meta.int
 import space.kscience.dataforge.meta.string
-import java.net.InetSocketAddress
 import kotlin.coroutines.CoroutineContext
 
 public class KtorTcpPort internal constructor(
@@ -29,7 +28,7 @@ public class KtorTcpPort internal constructor(
     override fun toString(): String = "port[tcp:$host:$port]"
 
     private val futureSocket = scope.async {
-        aSocket(ActorSelectorManager(Dispatchers.IO)).tcp().connect(InetSocketAddress(host, port))
+        aSocket(ActorSelectorManager(Dispatchers.IO)).tcp().connect(host, port)
     }
 
     private val writeChannel = scope.async {
@@ -38,7 +37,7 @@ public class KtorTcpPort internal constructor(
 
     private val listenerJob = scope.launch {
         val input = futureSocket.await().openReadChannel()
-        input.consumeEachBufferRange { buffer, last ->
+        input.consumeEachBufferRange { buffer, _ ->
             val array = ByteArray(buffer.remaining())
             buffer.get(array)
             receive(array)
@@ -56,7 +55,10 @@ public class KtorTcpPort internal constructor(
         super.close()
     }
 
-    public companion object: PortFactory {
+    public companion object : PortFactory {
+
+        override val type: String = "tcp"
+
         public fun open(
             context: Context,
             host: String,
@@ -66,7 +68,7 @@ public class KtorTcpPort internal constructor(
             return KtorTcpPort(context, host, port, coroutineContext)
         }
 
-        override fun invoke(meta: Meta, context: Context): Port {
+        override fun build(context: Context, meta: Meta): Port {
             val host = meta["host"].string ?: "localhost"
             val port = meta["port"].int ?: error("Port value for TCP port is not defined in $meta")
             return open(context, host, port)

controls-ktor-tcp/src/main/kotlin/space/kscience/controls/ports/KtorTcpPortPlugin.kt

@@ -0,0 +1,30 @@
+package space.kscience.controls.ports
+
+import space.kscience.dataforge.context.AbstractPlugin
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.PluginFactory
+import space.kscience.dataforge.context.PluginTag
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import kotlin.reflect.KClass
+
+public class KtorTcpPortPlugin : AbstractPlugin() {
+
+    override val tag: PluginTag get() = Companion.tag
+
+    override fun content(target: String): Map<Name, Any> = when(target){
+        PortFactory.TYPE -> mapOf(Name.EMPTY to KtorTcpPort)
+        else -> emptyMap()
+    }
+
+    public companion object : PluginFactory<KtorTcpPortPlugin> {
+
+        override val tag: PluginTag = PluginTag("controls.ports.serial", group = PluginTag.DATAFORGE_GROUP)
+
+        override val type: KClass<out KtorTcpPortPlugin> = KtorTcpPortPlugin::class
+
+        override fun build(context: Context, meta: Meta): KtorTcpPortPlugin = KtorTcpPortPlugin()
+
+    }
+
+}

controls-magix-client/build.gradle.kts

@@ -1,21 +1,16 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     `maven-publish`
 }
 
 kscience{
+    jvm()
+    js()
     useSerialization {
         json()
     }
-}
+    dependencies {
-
+        implementation(project(":magix:magix-rsocket"))
-kotlin {
+        implementation(project(":controls-core"))
-    sourceSets {
-        commonMain {
-            dependencies {
-                implementation(project(":magix:magix-rsocket"))
-                implementation(project(":controls-core"))
-            }
-        }
     }
 }

controls-magix-client/src/commonMain/kotlin/ru/mipt/npm/controls/client/dfMagix.kt

@@ -1,64 +0,0 @@
-package ru.mipt.npm.controls.client
-
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.flow.catch
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
-import kotlinx.coroutines.launch
-import ru.mipt.npm.controls.api.DeviceMessage
-import ru.mipt.npm.controls.controllers.DeviceManager
-import ru.mipt.npm.controls.controllers.hubMessageFlow
-import ru.mipt.npm.controls.controllers.respondHubMessage
-import ru.mipt.npm.magix.api.MagixEndpoint
-import ru.mipt.npm.magix.api.MagixMessage
-import space.kscience.dataforge.context.error
-import space.kscience.dataforge.context.logger
-
-
-public const val DATAFORGE_MAGIX_FORMAT: String = "dataforge"
-
-internal fun generateId(request: MagixMessage<*>): String = if (request.id != null) {
-    "${request.id}.response"
-} else {
-    "df[${request.payload.hashCode()}"
-}
-
-/**
- * Communicate with server in [Magix format](https://github.com/waltz-controls/rfc/tree/master/1)
- */
-public fun DeviceManager.connectToMagix(
-    endpoint: MagixEndpoint<DeviceMessage>,
-    endpointID: String = DATAFORGE_MAGIX_FORMAT,
-): Job = context.launch {
-    endpoint.subscribe().onEach { request ->
-        val responsePayload = respondHubMessage(request.payload)
-        if (responsePayload != null) {
-            val response = MagixMessage(
-                format = DATAFORGE_MAGIX_FORMAT,
-                id = generateId(request),
-                parentId = request.id,
-                origin = endpointID,
-                payload = responsePayload
-            )
-
-            endpoint.broadcast(response)
-        }
-    }.catch { error ->
-        logger.error(error) { "Error while responding to message" }
-    }.launchIn(this)
-
-    hubMessageFlow(this).onEach { payload ->
-        endpoint.broadcast(
-            MagixMessage(
-                format = DATAFORGE_MAGIX_FORMAT,
-                id = "df[${payload.hashCode()}]",
-                origin = endpointID,
-                payload = payload
-            )
-        )
-    }.catch { error ->
-        logger.error(error) { "Error while sending a message" }
-    }.launchIn(this)
-}
-
-

controls-magix-client/src/commonMain/kotlin/space/kscience/controls/client/controlsMagix.kt

@@ -0,0 +1,62 @@
+package space.kscience.controls.client
+
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import space.kscience.controls.api.DeviceMessage
+import space.kscience.controls.manager.DeviceManager
+import space.kscience.controls.manager.hubMessageFlow
+import space.kscience.controls.manager.respondHubMessage
+import space.kscience.dataforge.context.error
+import space.kscience.dataforge.context.logger
+import space.kscience.magix.api.*
+
+
+public val controlsMagixFormat: MagixFormat<DeviceMessage> = MagixFormat(
+    DeviceMessage.serializer(),
+    setOf("controls-kt", "dataforge")
+)
+
+internal fun generateId(request: MagixMessage): String = if (request.id != null) {
+    "${request.id}.response"
+} else {
+    "df[${request.payload.hashCode()}"
+}
+
+/**
+ * Communicate with server in [Magix format](https://github.com/waltz-controls/rfc/tree/master/1)
+ */
+public fun DeviceManager.connectToMagix(
+    endpoint: MagixEndpoint,
+    endpointID: String = controlsMagixFormat.defaultFormat,
+): Job = context.launch {
+    endpoint.subscribe(controlsMagixFormat).onEach { (request, payload) ->
+        val responsePayload = respondHubMessage(payload)
+        if (responsePayload != null) {
+            endpoint.broadcast(
+                format = controlsMagixFormat,
+                origin = endpointID,
+                payload = responsePayload,
+                id = generateId(request),
+                parentId = request.id
+            )
+        }
+    }.catch { error ->
+        logger.error(error) { "Error while responding to message" }
+    }.launchIn(this)
+
+    hubMessageFlow(this).onEach { payload ->
+        endpoint.broadcast(
+            format = controlsMagixFormat,
+            origin = endpointID,
+            payload = payload,
+            id = "df[${payload.hashCode()}]"
+        )
+    }.catch { error ->
+        logger.error(error) { "Error while sending a message" }
+    }.launchIn(this)
+}
+
+

controls-magix-client/src/commonMain/kotlin/space/kscience/controls/client/doocsMagix.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.client
+package space.kscience.controls.client
 
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable

controls-magix-client/src/commonMain/kotlin/space/kscience/controls/client/tangoMagix.kt

@@ -1,18 +1,17 @@
-package ru.mipt.npm.controls.client
+package space.kscience.controls.client
 
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
 import kotlinx.serialization.Serializable
-import ru.mipt.npm.controls.api.get
+import space.kscience.controls.api.get
-import ru.mipt.npm.controls.api.getOrReadProperty
+import space.kscience.controls.api.getOrReadProperty
-import ru.mipt.npm.controls.controllers.DeviceManager
+import space.kscience.controls.manager.DeviceManager
-import ru.mipt.npm.magix.api.MagixEndpoint
-import ru.mipt.npm.magix.api.MagixMessage
 import space.kscience.dataforge.context.error
 import space.kscience.dataforge.context.logger
 import space.kscience.dataforge.meta.Meta
+import space.kscience.magix.api.*
 
 public const val TANGO_MAGIX_FORMAT: String = "tango"
 
@@ -59,33 +58,39 @@ public data class TangoPayload(
     val argin: Meta? = null,
     val argout: Meta? = null,
     val data: Meta? = null,
-    val errors: List<String>? = null
+    val errors: List<String>? = null,
 )
 
+internal val tangoMagixFormat = MagixFormat(
+    TangoPayload.serializer(),
+    setOf("tango")
+)
+
+
 public fun DeviceManager.launchTangoMagix(
-    endpoint: MagixEndpoint<TangoPayload>,
+    endpoint: MagixEndpoint,
     endpointID: String = TANGO_MAGIX_FORMAT,
 ): Job {
-    suspend fun respond(request: MagixMessage<TangoPayload>, payloadBuilder: (TangoPayload) -> TangoPayload) {
+
+    suspend fun respond(request: MagixMessage, payload: TangoPayload, payloadBuilder: (TangoPayload) -> TangoPayload) {
         endpoint.broadcast(
-            request.copy(
+            tangoMagixFormat,
-                id = generateId(request),
+            id = generateId(request),
-                parentId = request.id,
+            parentId = request.id,
-                origin = endpointID,
+            origin = endpointID,
-                payload = payloadBuilder(request.payload)
+            payload = payloadBuilder(payload)
-            )
         )
     }
 
 
     return context.launch {
-        endpoint.subscribe().onEach { request ->
+        endpoint.subscribe(tangoMagixFormat).onEach { (request, payload) ->
             try {
-                val device = get(request.payload.device)
+                val device = get(payload.device)
-                when (request.payload.action) {
+                when (payload.action) {
                     TangoAction.read -> {
-                        val value = device.getOrReadProperty(request.payload.name)
+                        val value = device.getOrReadProperty(payload.name)
-                        respond(request) { requestPayload ->
+                        respond(request, payload) { requestPayload ->
                             requestPayload.copy(
                                 value = value,
                                 quality = TangoQuality.VALID
@@ -93,12 +98,12 @@ public fun DeviceManager.launchTangoMagix(
                         }
                     }
                     TangoAction.write -> {
-                        request.payload.value?.let { value ->
+                        payload.value?.let { value ->
-                            device.writeProperty(request.payload.name, value)
+                            device.writeProperty(payload.name, value)
                         }
                         //wait for value to be written and return final state
-                        val value = device.getOrReadProperty(request.payload.name)
+                        val value = device.getOrReadProperty(payload.name)
-                        respond(request) { requestPayload ->
+                        respond(request, payload) { requestPayload ->
                             requestPayload.copy(
                                 value = value,
                                 quality = TangoQuality.VALID
@@ -106,8 +111,8 @@ public fun DeviceManager.launchTangoMagix(
                         }
                     }
                     TangoAction.exec -> {
-                        val result = device.execute(request.payload.name, request.payload.argin)
+                        val result = device.execute(payload.name, payload.argin)
-                        respond(request) { requestPayload ->
+                        respond(request, payload) { requestPayload ->
                             requestPayload.copy(
                                 argout = result,
                                 quality = TangoQuality.VALID
@@ -119,12 +124,11 @@ public fun DeviceManager.launchTangoMagix(
             } catch (ex: Exception) {
                 logger.error(ex) { "Error while responding to message" }
                 endpoint.broadcast(
-                    request.copy(
+                    tangoMagixFormat,
-                        id = generateId(request),
+                    id = generateId(request),
-                        parentId = request.id,
+                    parentId = request.id,
-                        origin = endpointID,
+                    origin = endpointID,
-                        payload = request.payload.copy(quality = TangoQuality.WARNING)
+                    payload = payload.copy(quality = TangoQuality.WARNING)
-                    )
                 )
             }
         }.launchIn(this)

controls-opcua/build.gradle.kts

@@ -1,14 +1,14 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
 }
 
 val ktorVersion: String by rootProject.extra
 
-val miloVersion: String = "0.6.3"
+val miloVersion: String = "0.6.7"
 
 dependencies {
     api(project(":controls-core"))
-    api("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:${ru.mipt.npm.gradle.KScienceVersions.coroutinesVersion}")
+    api("org.jetbrains.kotlinx:kotlinx-coroutines-jdk8:${space.kscience.gradle.KScienceVersions.coroutinesVersion}")
 
     api("org.eclipse.milo:sdk-client:$miloVersion")
     api("org.eclipse.milo:bsd-parser:$miloVersion")

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/client/MetaBsdParser.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.opcua.client
+package space.kscience.controls.opcua.client
 
 import org.eclipse.milo.opcua.binaryschema.AbstractCodec
 import org.eclipse.milo.opcua.binaryschema.parser.BsdParser
@@ -11,12 +11,11 @@ import org.eclipse.milo.opcua.stack.core.types.builtin.*
 import org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.*
 import org.opcfoundation.opcua.binaryschema.EnumeratedType
 import org.opcfoundation.opcua.binaryschema.StructuredType
-import ru.mipt.npm.controls.misc.instant
+import space.kscience.controls.misc.instant
-import ru.mipt.npm.controls.misc.toMeta
+import space.kscience.controls.misc.toMeta
 import space.kscience.dataforge.meta.*
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
-import space.kscience.dataforge.values.*
 import java.util.*
 
 

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/client/MiloDevice.kt

@@ -1,11 +1,11 @@
-package ru.mipt.npm.controls.opcua.client
+package space.kscience.controls.opcua.client
 
 import kotlinx.coroutines.future.await
 import kotlinx.serialization.json.Json
 import org.eclipse.milo.opcua.sdk.client.OpcUaClient
 import org.eclipse.milo.opcua.stack.core.types.builtin.*
 import org.eclipse.milo.opcua.stack.core.types.enumerated.TimestampsToReturn
-import ru.mipt.npm.controls.api.Device
+import space.kscience.controls.api.Device
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.MetaSerializer
 import space.kscience.dataforge.meta.transformations.MetaConverter
@@ -39,8 +39,8 @@ public suspend inline fun <reified T: Any> MiloDevice.readOpcWithTime(
     val time = data.serverTime ?: error("No server time provided")
     val meta: Meta = when (val content = data.value.value) {
         is T -> return content to time
-        content is Meta -> content as Meta
+        is Meta -> content
-        content is ExtensionObject -> (content as ExtensionObject).decode(client.dynamicSerializationContext) as Meta
+        is ExtensionObject -> content.decode(client.dynamicSerializationContext) as Meta
         else -> error("Incompatible OPC property value $content")
     }
 

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/client/MiloDeviceBySpec.kt

@@ -1,11 +1,11 @@
-package ru.mipt.npm.controls.opcua.client
+package space.kscience.controls.opcua.client
 
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import org.eclipse.milo.opcua.sdk.client.OpcUaClient
 import org.eclipse.milo.opcua.stack.core.types.builtin.NodeId
-import ru.mipt.npm.controls.properties.DeviceBySpec
+import space.kscience.controls.spec.DeviceBySpec
-import ru.mipt.npm.controls.properties.DeviceSpec
+import space.kscience.controls.spec.DeviceSpec
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.Global
 import space.kscience.dataforge.meta.Meta

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/client/miloClient.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.opcua.client
+package space.kscience.controls.opcua.client
 
 import org.eclipse.milo.opcua.sdk.client.OpcUaClient
 import org.eclipse.milo.opcua.sdk.client.api.config.OpcUaClientConfigBuilder

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/server/DeviceNameSpace.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.opcua.server
+package space.kscience.controls.opcua.server
 
 import kotlinx.coroutines.launch
 import kotlinx.datetime.toJavaInstant
@@ -18,17 +18,17 @@ import org.eclipse.milo.opcua.stack.core.AttributeId
 import org.eclipse.milo.opcua.stack.core.Identifiers
 import org.eclipse.milo.opcua.stack.core.types.builtin.DateTime
 import org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText
-import ru.mipt.npm.controls.api.Device
+import space.kscience.controls.api.Device
-import ru.mipt.npm.controls.api.DeviceHub
+import space.kscience.controls.api.DeviceHub
-import ru.mipt.npm.controls.api.PropertyDescriptor
+import space.kscience.controls.api.PropertyDescriptor
-import ru.mipt.npm.controls.api.onPropertyChange
+import space.kscience.controls.api.onPropertyChange
-import ru.mipt.npm.controls.controllers.DeviceManager
+import space.kscience.controls.manager.DeviceManager
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.MetaSerializer
+import space.kscience.dataforge.meta.ValueType
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
 import space.kscience.dataforge.names.plus
-import space.kscience.dataforge.values.ValueType
 
 
 public operator fun Device.get(propertyDescriptor: PropertyDescriptor): Meta? = getProperty(propertyDescriptor.name)
@@ -208,5 +208,8 @@ public class DeviceNameSpace(
     }
 }
 
+/**
+ *  Serve devices from [deviceManager] as OPC-UA
+ */
 public fun OpcUaServer.serveDevices(deviceManager: DeviceManager): DeviceNameSpace =
     DeviceNameSpace(this, deviceManager).apply { startup() }

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/server/metaToOpc.kt

@@ -1,14 +1,11 @@
-package ru.mipt.npm.controls.opcua.server
+package space.kscience.controls.opcua.server
 
 import kotlinx.serialization.json.Json
 import org.eclipse.milo.opcua.stack.core.types.builtin.DataValue
 import org.eclipse.milo.opcua.stack.core.types.builtin.DateTime
 import org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode
 import org.eclipse.milo.opcua.stack.core.types.builtin.Variant
-import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.*
-import space.kscience.dataforge.meta.MetaSerializer
-import space.kscience.dataforge.meta.isLeaf
-import space.kscience.dataforge.values.*
 import java.time.Instant
 
 /**

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/server/nodeUtils.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.opcua.server
+package space.kscience.controls.opcua.server
 
 import org.eclipse.milo.opcua.sdk.core.AccessLevel
 import org.eclipse.milo.opcua.sdk.core.Reference

controls-opcua/src/main/kotlin/space/kscience/controls/opcua/server/serverUtils.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.opcua.server
+package space.kscience.controls.opcua.server
 
 import org.eclipse.milo.opcua.sdk.server.OpcUaServer
 import org.eclipse.milo.opcua.sdk.server.api.config.OpcUaServerConfig

controls-serial/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
     `maven-publish`
 }
 

controls-serial/src/main/kotlin/space/kscience/controls/serial/SerialPort.kt

@@ -1,10 +1,10 @@
-package ru.mipt.npm.controls.serial
+package space.kscience.controls.serial
 
 import jssc.SerialPort.*
 import jssc.SerialPortEventListener
-import ru.mipt.npm.controls.ports.AbstractPort
+import space.kscience.controls.ports.AbstractPort
-import ru.mipt.npm.controls.ports.Port
+import space.kscience.controls.ports.Port
-import ru.mipt.npm.controls.ports.PortFactory
+import space.kscience.controls.ports.PortFactory
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.int
@@ -58,6 +58,9 @@ public class SerialPort private constructor(
 
     public companion object : PortFactory {
 
+        override val type: String = "com"
+
+
         /**
          * Construct ComPort with given parameters
          */
@@ -77,7 +80,7 @@ public class SerialPort private constructor(
             return SerialPort(context, jssc, coroutineContext)
         }
 
-        override fun invoke(meta: Meta, context: Context): Port {
+        override fun build(context: Context, meta: Meta): Port {
             val name by meta.string { error("Serial port name not defined") }
             val baudRate by meta.int(BAUDRATE_9600)
             val dataBits by meta.int(DATABITS_8)

controls-serial/src/main/kotlin/space/kscience/controls/serial/SerialPortPlugin.kt

@@ -0,0 +1,31 @@
+package space.kscience.controls.serial
+
+import space.kscience.controls.ports.PortFactory
+import space.kscience.dataforge.context.AbstractPlugin
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.PluginFactory
+import space.kscience.dataforge.context.PluginTag
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import kotlin.reflect.KClass
+
+public class SerialPortPlugin : AbstractPlugin() {
+
+    override val tag: PluginTag get() = Companion.tag
+
+    override fun content(target: String): Map<Name, Any> = when(target){
+        PortFactory.TYPE -> mapOf(Name.EMPTY to SerialPort)
+        else -> emptyMap()
+    }
+
+    public companion object : PluginFactory<SerialPortPlugin> {
+
+        override val tag: PluginTag = PluginTag("controls.ports.serial", group = PluginTag.DATAFORGE_GROUP)
+
+        override val type: KClass<out SerialPortPlugin> = SerialPortPlugin::class
+
+        override fun build(context: Context, meta: Meta): SerialPortPlugin = SerialPortPlugin()
+
+    }
+
+}

controls-server/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
     `maven-publish`
 }
 
@@ -12,10 +12,12 @@ val ktorVersion: String by rootProject.extra
 
 dependencies {
     implementation(project(":controls-core"))
-    implementation(project(":controls-tcp"))
+    implementation(project(":controls-ktor-tcp"))
     implementation(projects.magix.magixServer)
     implementation("io.ktor:ktor-server-cio:$ktorVersion")
-    implementation("io.ktor:ktor-websockets:$ktorVersion")
+    implementation("io.ktor:ktor-server-websockets:$ktorVersion")
-    implementation("io.ktor:ktor-serialization:$ktorVersion")
+    implementation("io.ktor:ktor-server-content-negotiation:$ktorVersion")
-    implementation("io.ktor:ktor-html-builder:$ktorVersion")
+    implementation("io.ktor:ktor-serialization-kotlinx-json:$ktorVersion")
+    implementation("io.ktor:ktor-server-html-builder:$ktorVersion")
+    implementation("io.ktor:ktor-server-status-pages:$ktorVersion")
 }

controls-server/src/main/kotlin/space/kscience/controls/server/deviceWebServer.kt

@@ -1,24 +1,23 @@
-package ru.mipt.npm.controls.server
+package space.kscience.controls.server
 
 
-import io.ktor.application.*
-import io.ktor.features.CORS
-import io.ktor.features.StatusPages
-import io.ktor.html.respondHtml
 import io.ktor.http.HttpStatusCode
-import io.ktor.request.receiveText
+import io.ktor.server.application.*
-import io.ktor.response.respond
-import io.ktor.response.respondRedirect
-import io.ktor.response.respondText
-import io.ktor.routing.get
-import io.ktor.routing.post
-import io.ktor.routing.route
-import io.ktor.routing.routing
 import io.ktor.server.cio.CIO
 import io.ktor.server.engine.ApplicationEngine
 import io.ktor.server.engine.embeddedServer
-import io.ktor.util.getValue
+import io.ktor.server.html.respondHtml
-import io.ktor.websocket.WebSockets
+import io.ktor.server.plugins.statuspages.StatusPages
+import io.ktor.server.request.receiveText
+import io.ktor.server.response.respond
+import io.ktor.server.response.respondRedirect
+import io.ktor.server.response.respondText
+import io.ktor.server.routing.get
+import io.ktor.server.routing.post
+import io.ktor.server.routing.route
+import io.ktor.server.routing.routing
+import io.ktor.server.util.getValue
+import io.ktor.server.websocket.WebSockets
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.html.*
@@ -27,19 +26,39 @@ import kotlinx.serialization.json.Json
 import kotlinx.serialization.json.buildJsonArray
 import kotlinx.serialization.json.encodeToJsonElement
 import kotlinx.serialization.json.put
-import ru.mipt.npm.controls.api.DeviceMessage
+import space.kscience.controls.api.DeviceMessage
-import ru.mipt.npm.controls.api.PropertyGetMessage
+import space.kscience.controls.api.PropertyGetMessage
-import ru.mipt.npm.controls.api.PropertySetMessage
+import space.kscience.controls.api.PropertySetMessage
-import ru.mipt.npm.controls.api.getOrNull
+import space.kscience.controls.api.getOrNull
-import ru.mipt.npm.controls.controllers.DeviceManager
+import space.kscience.controls.manager.DeviceManager
-import ru.mipt.npm.controls.controllers.respondHubMessage
+import space.kscience.controls.manager.respondHubMessage
-import ru.mipt.npm.magix.api.MagixEndpoint
-import ru.mipt.npm.magix.server.GenericMagixMessage
-import ru.mipt.npm.magix.server.launchMagixServerRawRSocket
-import ru.mipt.npm.magix.server.magixModule
 import space.kscience.dataforge.meta.toMeta
 import space.kscience.dataforge.names.Name
 import space.kscience.dataforge.names.asName
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.api.MagixFlowPlugin
+import space.kscience.magix.api.MagixMessage
+import space.kscience.magix.server.magixModule
+
+
+
+private fun Application.deviceServerModule(manager: DeviceManager) {
+    install(WebSockets)
+//        install(CORS) {
+//            anyHost()
+//        }
+    install(StatusPages) {
+        exception<IllegalArgumentException> { call, cause ->
+            call.respond(HttpStatusCode.BadRequest, cause.message ?: "")
+        }
+    }
+    deviceManagerModule(manager)
+    routing {
+        get("/") {
+            call.respondRedirect("/dashboard")
+        }
+    }
+}
 
 /**
  * Create and start a web server for several devices
@@ -48,26 +67,7 @@ public fun CoroutineScope.startDeviceServer(
     manager: DeviceManager,
     port: Int = MagixEndpoint.DEFAULT_MAGIX_HTTP_PORT,
     host: String = "localhost",
-): ApplicationEngine {
+): ApplicationEngine = embeddedServer(CIO, port, host, module = { deviceServerModule(manager) }).start()
-
-    return this.embeddedServer(CIO, port, host) {
-        install(WebSockets)
-        install(CORS) {
-            anyHost()
-        }
-        install(StatusPages) {
-            exception<IllegalArgumentException> { cause ->
-                call.respond(HttpStatusCode.BadRequest, cause.message ?: "")
-            }
-        }
-        deviceManagerModule(manager)
-        routing {
-            get("/") {
-                call.respondRedirect("/dashboard")
-            }
-        }
-    }.start()
-}
 
 public fun ApplicationEngine.whenStarted(callback: Application.() -> Unit) {
     environment.monitor.subscribe(ApplicationStarted, callback)
@@ -78,20 +78,20 @@ public val WEB_SERVER_TARGET: Name = "@webServer".asName()
 
 public fun Application.deviceManagerModule(
     manager: DeviceManager,
+    vararg plugins: MagixFlowPlugin,
     deviceNames: Collection<String> = manager.devices.keys.map { it.toString() },
     route: String = "/",
-    rawSocketPort: Int = MagixEndpoint.DEFAULT_MAGIX_RAW_PORT,
     buffer: Int = 100,
 ) {
-    if (featureOrNull(WebSockets) == null) {
+    if (pluginOrNull(WebSockets) == null) {
         install(WebSockets)
     }
 
-    if (featureOrNull(CORS) == null) {
+//    if (pluginOrNull(CORS) == null) {
-        install(CORS) {
+//        install(CORS) {
-            anyHost()
+//            anyHost()
-        }
+//        }
-    }
+//    }
 
     routing {
         route(route) {
@@ -213,11 +213,13 @@ public fun Application.deviceManagerModule(
         }
     }
 
-    val magixFlow = MutableSharedFlow<GenericMagixMessage>(
+    val magixFlow = MutableSharedFlow<MagixMessage>(
         buffer,
         extraBufferCapacity = buffer
     )
 
-    launchMagixServerRawRSocket(magixFlow, rawSocketPort)
+    plugins.forEach {
+        it.start(this, magixFlow)
+    }
     magixModule(magixFlow)
 }

controls-server/src/main/kotlin/space/kscience/controls/server/responses.kt

@@ -1,12 +1,12 @@
-package ru.mipt.npm.controls.server
+package space.kscience.controls.server
 
-import io.ktor.application.ApplicationCall
 import io.ktor.http.ContentType
-import io.ktor.response.respondText
+import io.ktor.server.application.ApplicationCall
+import io.ktor.server.response.respondText
 import kotlinx.serialization.json.JsonObjectBuilder
 import kotlinx.serialization.json.buildJsonObject
-import ru.mipt.npm.controls.api.DeviceMessage
+import space.kscience.controls.api.DeviceMessage
-import ru.mipt.npm.magix.api.MagixEndpoint
+import space.kscience.magix.api.MagixEndpoint
 
 
 //internal fun Frame.toEnvelope(): Envelope {

controls-storage/README.md

@@ -0,0 +1,12 @@
+# Description
+
+This module provides API to store [DeviceMessages](/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/api/DeviceMessage.kt)
+from certain [DeviceManager](/controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/controllers/DeviceManager.kt)
+or [MagixMessages](magix/magix-api/src/commonMain/kotlin/ru/mipt/npm/magix/api/MagixMessage.kt)
+from certain [magix server](/magix/magix-server/src/main/kotlin/ru/mipt/npm/magix/server/server.kt).
+
+# Usage
+
+All usage examples can be found in [VirtualCarController](/demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt).
+
+For more details, you can see comments in source code of this module.

controls-storage/build.gradle.kts

@@ -0,0 +1,23 @@
+plugins {
+    id("space.kscience.gradle.mpp")
+    `maven-publish`
+}
+
+val dataforgeVersion: String by rootProject.extra
+
+kscience{
+    jvm()
+    js()
+    dependencies {
+        api(projects.controlsCore)
+    }
+    dependencies(jvmMain){
+        api(projects.magix.magixApi)
+        api(projects.controlsMagixClient)
+        api(projects.magix.magixServer)
+    }
+}
+
+readme{
+    maturity = space.kscience.gradle.Maturity.PROTOTYPE
+}

controls-storage/controls-xodus/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+    id("space.kscience.gradle.jvm")
+    `maven-publish`
+}
+
+val xodusVersion: String by rootProject.extra
+
+dependencies {
+    api(projects.controlsStorage)
+    implementation("org.jetbrains.xodus:xodus-entity-store:$xodusVersion")
+//    implementation("org.jetbrains.xodus:xodus-environment:$xodusVersion")
+//    implementation("org.jetbrains.xodus:xodus-vfs:$xodusVersion")
+
+    testImplementation(npmlibs.kotlinx.coroutines.test)
+}
+
+readme{
+    maturity = space.kscience.gradle.Maturity.PROTOTYPE
+}

controls-storage/controls-xodus/src/main/kotlin/space/kscience/controls/xodus/XodusDeviceMessageStorage.kt

@@ -0,0 +1,139 @@
+package space.kscience.controls.xodus
+
+import jetbrains.exodus.entitystore.Entity
+import jetbrains.exodus.entitystore.PersistentEntityStore
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import jetbrains.exodus.entitystore.StoreTransaction
+import kotlinx.datetime.Instant
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.descriptors.serialDescriptor
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import space.kscience.controls.api.DeviceMessage
+import space.kscience.controls.storage.DeviceMessageStorage
+import space.kscience.controls.storage.workDirectory
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.context.fetch
+import space.kscience.dataforge.io.IOPlugin
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
+import space.kscience.dataforge.misc.DFExperimental
+import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.matches
+import space.kscience.dataforge.names.parseAsName
+
+
+internal fun StoreTransaction.writeMessage(message: DeviceMessage): Unit {
+    val entity: Entity = newEntity(XodusDeviceMessageStorage.DEVICE_MESSAGE_ENTITY_TYPE)
+    val json = Json.encodeToJsonElement(DeviceMessage.serializer(), message).jsonObject
+    val type = json["type"]?.jsonPrimitive?.content ?: error("Message json representation must have type.")
+    entity.setProperty("type", type)
+
+    message.sourceDevice?.let {
+        entity.setProperty(DeviceMessage::sourceDevice.name, it.toString())
+    }
+    message.targetDevice?.let {
+        entity.setProperty(DeviceMessage::targetDevice.name, it.toString())
+    }
+    message.time?.let {
+        entity.setProperty(DeviceMessage::targetDevice.name, it.toString())
+    }
+    entity.setBlobString("json", Json.encodeToString(json))
+}
+
+
+@OptIn(DFExperimental::class)
+private fun Entity.propertyMatchesName(propertyName: String, pattern: Name? = null) =
+    pattern == null || getProperty(propertyName).toString().parseAsName().matches(pattern)
+
+private fun Entity.timeInRange(range: ClosedRange<Instant>?): Boolean {
+    if (range == null) return true
+    val time: Instant? = getProperty(DeviceMessage::time.name)?.let { entityString ->
+        Instant.parse(entityString.toString())
+    }
+    return time != null && time in range
+}
+
+public class XodusDeviceMessageStorage(
+    private val entityStore: PersistentEntityStore,
+) : DeviceMessageStorage, AutoCloseable {
+
+    override suspend fun write(event: DeviceMessage) {
+        entityStore.executeInTransaction { txn ->
+            txn.writeMessage(event)
+        }
+    }
+
+    override suspend fun readAll(): List<DeviceMessage> = entityStore.computeInReadonlyTransaction { transaction ->
+        transaction.sort(
+            DEVICE_MESSAGE_ENTITY_TYPE,
+            DeviceMessage::time.name,
+            true
+        ).map {
+            Json.decodeFromString(
+                DeviceMessage.serializer(),
+                it.getBlobString("json") ?: error("No json content found")
+            )
+        }
+    }
+
+    override suspend fun read(
+        eventType: String,
+        range: ClosedRange<Instant>?,
+        sourceDevice: Name?,
+        targetDevice: Name?,
+    ): List<DeviceMessage> = entityStore.computeInReadonlyTransaction { transaction ->
+        transaction.find(
+            DEVICE_MESSAGE_ENTITY_TYPE,
+            "type",
+            eventType
+        ).asSequence().filter {
+            it.timeInRange(range) &&
+                    it.propertyMatchesName(DeviceMessage::sourceDevice.name, sourceDevice) &&
+                    it.propertyMatchesName(DeviceMessage::targetDevice.name, targetDevice)
+        }.map {
+            Json.decodeFromString(
+                DeviceMessage.serializer(),
+                it.getBlobString("json") ?: error("No json content found")
+            )
+        }.sortedBy { it.time }.toList()
+    }
+
+    override fun close() {
+        entityStore.close()
+    }
+
+    public companion object : Factory<XodusDeviceMessageStorage> {
+        internal const val DEVICE_MESSAGE_ENTITY_TYPE = "controls-kt.message"
+        public val XODUS_STORE_PROPERTY: Name = Name.of("xodus", "storagePath")
+
+        override fun build(context: Context, meta: Meta): XodusDeviceMessageStorage {
+            val io = context.fetch(IOPlugin)
+            val storePath = io.workDirectory.resolve(
+                meta[XODUS_STORE_PROPERTY]?.string
+                    ?: context.properties[XODUS_STORE_PROPERTY]?.string ?: "storage"
+            )
+
+            val entityStore = PersistentEntityStores.newInstance(storePath.toFile())
+
+            return XodusDeviceMessageStorage(entityStore)
+        }
+    }
+}
+
+/**
+ * Query all messages of given type
+ */
+@OptIn(ExperimentalSerializationApi::class)
+public suspend inline fun <reified T : DeviceMessage> XodusDeviceMessageStorage.query(
+    range: ClosedRange<Instant>? = null,
+    sourceDevice: Name? = null,
+    targetDevice: Name? = null,
+): List<T> = read(serialDescriptor<T>().serialName, range, sourceDevice, targetDevice).map {
+    //Check that all types are correct
+    it as T
+}

controls-storage/controls-xodus/src/test/kotlin/PropertyHistoryTest.kt

@@ -0,0 +1,77 @@
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.test.runTest
+import kotlinx.datetime.Instant
+import org.junit.jupiter.api.AfterAll
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.Test
+import space.kscience.controls.api.PropertyChangedMessage
+import space.kscience.controls.xodus.XodusDeviceMessageStorage
+import space.kscience.controls.xodus.query
+import space.kscience.controls.xodus.writeMessage
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.names.asName
+import java.nio.file.Files
+
+internal class PropertyHistoryTest {
+    companion object {
+        val storeFile = Files.createTempDirectory("controls-xodus").toFile()
+
+
+        private val propertyChangedMessages = listOf(
+            PropertyChangedMessage(
+                "speed",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(1000),
+                sourceDevice = Name.of("virtual-car")
+            ),
+            PropertyChangedMessage(
+                "acceleration",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(1500),
+                sourceDevice = Name.of("virtual-car")
+            ),
+            PropertyChangedMessage(
+                "speed",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(2000),
+                sourceDevice = Name.of("magix-virtual-car")
+            )
+        )
+
+        @BeforeAll
+        @JvmStatic
+        fun createEntities() {
+            PersistentEntityStores.newInstance(storeFile).use {
+                it.executeInTransaction { transaction ->
+                    propertyChangedMessages.forEach { message ->
+                        transaction.writeMessage(message)
+                    }
+                }
+            }
+        }
+
+        @AfterAll
+        @JvmStatic
+        fun deleteDatabase() {
+            storeFile.deleteRecursively()
+        }
+    }
+
+    @OptIn(ExperimentalCoroutinesApi::class)
+    @Test
+    fun getPropertyHistoryTest() = runTest {
+        PersistentEntityStores.newInstance(storeFile).use { entityStore ->
+            XodusDeviceMessageStorage(entityStore).use { storage ->
+                assertEquals(
+                    propertyChangedMessages[0],
+                    storage.query<PropertyChangedMessage>(
+                        sourceDevice = "virtual-car".asName()
+                    ).first { it.property == "speed" }
+                )
+            }
+        }
+    }
+}

controls-storage/src/commonMain/kotlin/space/kscience/controls/storage/DeviceMessageStorage.kt

@@ -0,0 +1,23 @@
+package space.kscience.controls.storage
+
+import kotlinx.datetime.Instant
+import space.kscience.controls.api.DeviceMessage
+import space.kscience.dataforge.names.Name
+
+/**
+ * A storage for Controls-kt [DeviceMessage]
+ */
+public interface DeviceMessageStorage {
+    public suspend fun write(event: DeviceMessage)
+
+    public suspend fun readAll(): List<DeviceMessage>
+
+    public suspend fun read(
+        eventType: String,
+        range: ClosedRange<Instant>? = null,
+        sourceDevice: Name? = null,
+        targetDevice: Name? = null,
+    ): List<DeviceMessage>
+
+    public fun close()
+}

controls-storage/src/commonMain/kotlin/space/kscience/controls/storage/storageCommon.kt

@@ -0,0 +1,64 @@
+package space.kscience.controls.storage
+
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onCompletion
+import kotlinx.coroutines.flow.onEach
+import space.kscience.controls.api.DeviceMessage
+import space.kscience.controls.manager.DeviceManager
+import space.kscience.controls.manager.hubMessageFlow
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.context.debug
+import space.kscience.dataforge.context.logger
+
+//TODO replace by plugin?
+public fun DeviceManager.storage(
+    factory: Factory<DeviceMessageStorage>,
+): DeviceMessageStorage = factory.build(context, meta)
+
+/**
+ * Begin to store DeviceMessages from this DeviceManager
+ * @param factory factory that will be used for creating persistent entity store instance. DefaultPersistentStoreFactory by default.
+ * DeviceManager's meta and context will be used for in invoke method.
+ * @param filterCondition allow you to specify messages which we want to store. Always true by default.
+ * @return Job which responsible for our storage
+ */
+public fun DeviceManager.storeMessages(
+    factory: Factory<DeviceMessageStorage>,
+    filterCondition: suspend (DeviceMessage) -> Boolean = { true },
+): Job {
+    val storage = factory.build(context, meta)
+    logger.debug { "Message storage with meta = $meta created" }
+
+    return hubMessageFlow(context).filter(filterCondition).onEach { message ->
+        storage.write(message)
+    }.onCompletion {
+        storage.close()
+        logger.debug { "Message storage closed" }
+    }.launchIn(context)
+}
+
+///**
+// * @return the list of deviceMessages that describes changes of specified property of specified device sorted by time
+// * @param sourceDeviceName a name of device, history of which property we want to get
+// * @param propertyName a name of property, history of which we want to get
+// * @param factory a factory that produce mongo clients
+// */
+//public suspend fun getPropertyHistory(
+//    sourceDeviceName: String,
+//    propertyName: String,
+//    factory: Factory<EventStorage>,
+//    meta: Meta = Meta.EMPTY,
+//): List<PropertyChangedMessage> {
+//    return factory(meta).use {
+//        it.getPropertyHistory(sourceDeviceName, propertyName)
+//    }
+//}
+//
+//
+//public enum class StorageKind {
+//    DEVICE_HUB,
+//    MAGIX_SERVER
+//}
+

controls-storage/src/jvmMain/kotlin/space/kscience/controls/storage/storageJvm.kt

@@ -0,0 +1,46 @@
+//package space.kscience.controls.storage
+//
+//import io.ktor.server.application.Application
+//import kotlinx.coroutines.InternalCoroutinesApi
+//import kotlinx.coroutines.flow.Flow
+//import kotlinx.coroutines.flow.MutableSharedFlow
+//import kotlinx.coroutines.flow.filter
+//import kotlinx.coroutines.flow.onEach
+//import kotlinx.coroutines.job
+//import ru.mipt.npm.magix.server.GenericMagixMessage
+//import space.kscience.dataforge.context.Factory
+//import space.kscience.dataforge.meta.Meta
+//
+///**
+// * Asynchronous version of synchronous API, so for more details check relative docs
+// */
+//
+//internal fun Flow<GenericMagixMessage>.store(
+//    client: EventStorage,
+//    flowFilter: suspend (GenericMagixMessage) -> Boolean = { true },
+//) {
+//    filter(flowFilter).onEach { message ->
+//        client.storeMagixMessage(message)
+//    }
+//}
+//
+///** Begin to store MagixMessages from certain flow
+// * @param flow flow of messages which we will store
+// * @param meta Meta which may have some configuration parameters for our storage and will be used in invoke method of factory
+// * @param factory factory that will be used for creating persistent entity store instance. DefaultPersistentStoreFactory by default.
+// * @param flowFilter allow you to specify messages which we want to store. Always true by default.
+// */
+//@OptIn(InternalCoroutinesApi::class)
+//public fun Application.store(
+//    flow: MutableSharedFlow<GenericMagixMessage>,
+//    factory: Factory<EventStorage>,
+//    meta: Meta = Meta.EMPTY,
+//    flowFilter: suspend (GenericMagixMessage) -> Boolean = { true },
+//) {
+//    val client = factory(meta)
+//
+//    flow.store(client, flowFilter)
+//    coroutineContext.job.invokeOnCompletion(onCancelling = true) {
+//        client.close()
+//    }
+//}

controls-storage/src/jvmMain/kotlin/space/kscience/controls/storage/workDirectory.kt

@@ -0,0 +1,32 @@
+package space.kscience.controls.storage
+
+import space.kscience.dataforge.context.ContextBuilder
+import space.kscience.dataforge.io.IOPlugin
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.set
+import space.kscience.dataforge.meta.string
+import java.nio.file.Path
+import kotlin.io.path.Path
+
+//TODO remove on DF 0.6
+
+internal val IOPlugin.Companion.WORK_DIRECTORY_KEY: String get() = ".dataforge"
+
+public val IOPlugin.workDirectory: Path
+    get() {
+        val workDirectoryPath = meta[IOPlugin.WORK_DIRECTORY_KEY].string
+            ?: context.properties[IOPlugin.WORK_DIRECTORY_KEY].string
+            ?: ".dataforge"
+
+        return Path(workDirectoryPath)
+    }
+
+public fun ContextBuilder.workDirectory(path: String) {
+    properties {
+        set(IOPlugin.WORK_DIRECTORY_KEY, path)
+    }
+}
+
+public fun ContextBuilder.workDirectory(path: Path){
+    workDirectory(path.toAbsolutePath().toString())
+}

controls-tcp/build.gradle.kts

@@ -1,17 +0,0 @@
-plugins {
-    id("ru.mipt.npm.gradle.mpp")
-}
-
-val ktorVersion: String by rootProject.extra
-
-kotlin {
-    sourceSets {
-        commonMain {
-            dependencies {
-                api(project(":controls-core"))
-                api("io.ktor:ktor-network:$ktorVersion")
-            }
-        }
-
-    }
-}

demo/all-things/build.gradle.kts

@@ -1,21 +1,19 @@
 plugins {
     kotlin("jvm")
-    id("org.openjfx.javafxplugin") version "0.0.9"
+    id("org.openjfx.javafxplugin") version "0.0.13"
     application
 }
 
 
-repositories{
+repositories {
     mavenCentral()
-    jcenter()
     maven("https://repo.kotlin.link")
-    maven("https://kotlin.bintray.com/kotlinx")
 }
 
 val ktorVersion: String by rootProject.extra
 val rsocketVersion: String by rootProject.extra
 
-dependencies{
+dependencies {
     implementation(projects.controlsCore)
     //implementation(projects.controlsServer)
     implementation(projects.magix.magixServer)
@@ -26,23 +24,23 @@ dependencies{
 
     implementation("io.ktor:ktor-client-cio:$ktorVersion")
     implementation("no.tornado:tornadofx:1.7.20")
-    implementation("space.kscience:plotlykt-server:0.5.0-dev-1")
+    implementation("space.kscience:plotlykt-server:0.5.3-dev-1")
-    implementation("com.github.Ricky12Awesome:json-schema-serialization:0.6.6")
+//    implementation("com.github.Ricky12Awesome:json-schema-serialization:0.6.6")
-    implementation("ch.qos.logback:logback-classic:1.2.3")
+    implementation("ch.qos.logback:logback-classic:1.2.11")
 }
 
 tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
     kotlinOptions {
         jvmTarget = "11"
-        freeCompilerArgs = freeCompilerArgs + "-Xjvm-default=all"
+        freeCompilerArgs = freeCompilerArgs + listOf("-Xjvm-default=all", "-Xopt-in=kotlin.RequiresOptIn")
     }
 }
 
-javafx{
+javafx {
-    version = "14"
+    version = "17"
     modules("javafx.controls")
 }
 
-application{
+application {
-    mainClass.set("ru.mipt.npm.controls.demo.DemoControllerViewKt")
+    mainClass.set("space.kscience.controls.demo.DemoControllerViewKt")
 }

demo/all-things/src/main/kotlin/space/kscience/controls/demo/DemoControllerView.kt

@@ -1,4 +1,4 @@
-package ru.mipt.npm.controls.demo
+package space.kscience.controls.demo
 
 import io.ktor.server.engine.ApplicationEngine
 import javafx.scene.Parent
@@ -8,21 +8,22 @@ import javafx.stage.Stage
 import kotlinx.coroutines.launch
 import org.eclipse.milo.opcua.sdk.server.OpcUaServer
 import org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText
-import ru.mipt.npm.controls.api.DeviceMessage
+import space.kscience.controls.client.connectToMagix
-import ru.mipt.npm.controls.client.connectToMagix
+import space.kscience.controls.demo.DemoDevice.Companion.cosScale
-import ru.mipt.npm.controls.controllers.DeviceManager
+import space.kscience.controls.demo.DemoDevice.Companion.sinScale
-import ru.mipt.npm.controls.controllers.install
+import space.kscience.controls.demo.DemoDevice.Companion.timeScale
-import ru.mipt.npm.controls.demo.DemoDevice.Companion.cosScale
+import space.kscience.controls.manager.DeviceManager
-import ru.mipt.npm.controls.demo.DemoDevice.Companion.sinScale
+import space.kscience.controls.manager.install
-import ru.mipt.npm.controls.demo.DemoDevice.Companion.timeScale
+import space.kscience.controls.opcua.server.OpcUaServer
-import ru.mipt.npm.controls.opcua.server.OpcUaServer
+import space.kscience.controls.opcua.server.endpoint
-import ru.mipt.npm.controls.opcua.server.endpoint
+import space.kscience.controls.opcua.server.serveDevices
-import ru.mipt.npm.controls.opcua.server.serveDevices
-import ru.mipt.npm.magix.api.MagixEndpoint
-import ru.mipt.npm.magix.rsocket.rSocketWithTcp
-import ru.mipt.npm.magix.rsocket.rSocketWithWebSockets
-import ru.mipt.npm.magix.server.startMagixServer
 import space.kscience.dataforge.context.*
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.rsocket.rSocketWithTcp
+import space.kscience.magix.rsocket.rSocketWithWebSockets
+import space.kscience.magix.server.RSocketMagixFlowPlugin
+import space.kscience.magix.server.startMagixServer
+import space.kscince.magix.zmq.ZmqMagixFlowPlugin
 import tornadofx.*
 import java.awt.Desktop
 import java.net.URI
@@ -33,7 +34,7 @@ class DemoController : Controller(), ContextAware {
     var magixServer: ApplicationEngine? = null
     var visualizer: ApplicationEngine? = null
     var opcUaServer: OpcUaServer = OpcUaServer {
-        setApplicationName(LocalizedText.english("ru.mipt.npm.controls.opcua"))
+        setApplicationName(LocalizedText.english("space.kscience.controls.opcua"))
         endpoint {
             setBindPort(9999)
             //use default endpoint
@@ -44,19 +45,24 @@ class DemoController : Controller(), ContextAware {
         plugin(DeviceManager)
     }
 
-    private val deviceManager = context.fetch(DeviceManager)
+    private val deviceManager = context.request(DeviceManager)
 
     fun init() {
         context.launch {
             device = deviceManager.install("demo", DemoDevice)
             //starting magix event loop
-            magixServer = startMagixServer(enableRawRSocket = true, enableZmq = true)
+            magixServer = startMagixServer(
+                RSocketMagixFlowPlugin(), //TCP rsocket support
+                ZmqMagixFlowPlugin() //ZMQ support
+            )
             //Launch device client and connect it to the server
-            val deviceEndpoint = MagixEndpoint.rSocketWithTcp("localhost", DeviceMessage.serializer())
+            val deviceEndpoint = MagixEndpoint.rSocketWithTcp("localhost")
             deviceManager.connectToMagix(deviceEndpoint)
-            val visualEndpoint = MagixEndpoint.rSocketWithWebSockets("localhost", DeviceMessage.serializer())
+            //connect visualization to a magix endpoint
+            val visualEndpoint = MagixEndpoint.rSocketWithWebSockets("localhost")
             visualizer = visualEndpoint.startDemoDeviceServer()
 
+            //serve devices as OPC-UA namespace
             opcUaServer.startup()
             opcUaServer.serveDevices(deviceManager)
         }

demo/all-things/src/main/kotlin/space/kscience/controls/demo/DemoDevice.kt

@@ -0,0 +1,84 @@
+package space.kscience.controls.demo
+
+import kotlinx.coroutines.launch
+import space.kscience.controls.api.metaDescriptor
+import space.kscience.controls.spec.*
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.ValueType
+import space.kscience.dataforge.meta.descriptors.value
+import space.kscience.dataforge.meta.transformations.MetaConverter
+import java.time.Instant
+import kotlin.time.Duration.Companion.milliseconds
+
+
+class DemoDevice(context: Context, meta: Meta) : DeviceBySpec<DemoDevice>(DemoDevice, context, meta) {
+    private var timeScaleState = 5000.0
+    private var sinScaleState = 1.0
+    private var cosScaleState = 1.0
+
+
+    companion object : DeviceSpec<DemoDevice>(), Factory<DemoDevice> {
+
+        override fun build(context: Context, meta: Meta): DemoDevice = DemoDevice(context, meta)
+
+        // register virtual properties based on actual object state
+        val timeScale by mutableProperty(MetaConverter.double, DemoDevice::timeScaleState) {
+            metaDescriptor {
+                type(ValueType.NUMBER)
+            }
+            info = "Real to virtual time scale"
+        }
+
+        val sinScale by mutableProperty(MetaConverter.double, DemoDevice::sinScaleState)
+        val cosScale by mutableProperty(MetaConverter.double, DemoDevice::cosScaleState)
+
+        val sin by doubleProperty {
+            val time = Instant.now()
+            kotlin.math.sin(time.toEpochMilli().toDouble() / timeScaleState) * sinScaleState
+        }
+
+        val cos by doubleProperty {
+            val time = Instant.now()
+            kotlin.math.cos(time.toEpochMilli().toDouble() / timeScaleState) * sinScaleState
+        }
+
+        val coordinates by metaProperty(
+            descriptorBuilder = {
+                metaDescriptor {
+                    value("time", ValueType.NUMBER)
+                }
+            }
+        ) {
+            Meta {
+                val time = Instant.now()
+                "time" put time.toEpochMilli()
+                "x" put read(sin)
+                "y" put read(cos)
+            }
+        }
+
+
+        override suspend fun DemoDevice.onOpen() {
+            launch {
+                sinScale.read()
+                cosScale.read()
+                timeScale.read()
+            }
+            doRecurring(50.milliseconds) {
+                sin.read()
+                cos.read()
+                coordinates.read()
+            }
+        }
+
+        val resetScale by action(MetaConverter.meta, MetaConverter.meta) {
+            timeScale.write(5000.0)
+            sinScale.write(1.0)
+            cosScale.write(1.0)
+            null
+        }
+
+    }
+}

demo/all-things/src/main/kotlin/space/kscience/controls/demo/demoDeviceServer.kt

@@ -1,21 +1,22 @@
-package ru.mipt.npm.controls.demo
+package space.kscience.controls.demo
 
-import io.ktor.application.install
+import io.ktor.server.application.install
-import io.ktor.features.CORS
 import io.ktor.server.cio.CIO
 import io.ktor.server.engine.ApplicationEngine
 import io.ktor.server.engine.embeddedServer
-import io.ktor.websocket.WebSockets
+import io.ktor.server.plugins.cors.routing.CORS
-import io.rsocket.kotlin.transport.ktor.server.RSocketSupport
+import io.ktor.server.websocket.WebSockets
+import io.rsocket.kotlin.ktor.server.RSocketSupport
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import kotlinx.html.div
 import kotlinx.html.link
-import ru.mipt.npm.controls.api.DeviceMessage
+import space.kscience.controls.api.PropertyChangedMessage
-import ru.mipt.npm.controls.api.PropertyChangedMessage
+import space.kscience.controls.client.controlsMagixFormat
-import ru.mipt.npm.magix.api.MagixEndpoint
 import space.kscience.dataforge.meta.Meta
 import space.kscience.dataforge.meta.double
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.api.subscribe
 import space.kscience.plotly.layout
 import space.kscience.plotly.models.Trace
 import space.kscience.plotly.plot
@@ -54,33 +55,33 @@ suspend fun Trace.updateXYFrom(flow: Flow<Iterable<Pair<Double, Double>>>) {
 }
 
 
-suspend fun MagixEndpoint<DeviceMessage>.startDemoDeviceServer(): ApplicationEngine =
+@Suppress("ExtractKtorModule")
-    embeddedServer(CIO, 9090) {
+suspend fun MagixEndpoint.startDemoDeviceServer(): ApplicationEngine = embeddedServer(CIO, 9091) {
-        install(WebSockets)
+    install(WebSockets)
-        install(RSocketSupport)
+    install(RSocketSupport)
 
-        install(CORS) {
+    install(CORS) {
-            anyHost()
+        anyHost()
-        }
+    }
 
-        val sinFlow = MutableSharedFlow<Meta?>()// = device.sin.flow()
+    val sinFlow = MutableSharedFlow<Meta?>()// = device.sin.flow()
-        val cosFlow = MutableSharedFlow<Meta?>()// = device.cos.flow()
+    val cosFlow = MutableSharedFlow<Meta?>()// = device.cos.flow()
 
-        launch {
+    launch {
-            subscribe().collect { magix ->
+        subscribe(controlsMagixFormat).collect { (_, payload) ->
-                (magix.payload as? PropertyChangedMessage)?.let { message ->
+            (payload as? PropertyChangedMessage)?.let { message ->
-                    when (message.property) {
+                when (message.property) {
-                        "sin" -> sinFlow.emit(message.value)
+                    "sin" -> sinFlow.emit(message.value)
-                        "cos" -> cosFlow.emit(message.value)
+                    "cos" -> cosFlow.emit(message.value)
-                    }
                 }
             }
         }
+    }
 
-        plotlyModule().apply {
+    plotlyModule{
-            updateMode = PlotlyUpdateMode.PUSH
+        updateMode = PlotlyUpdateMode.PUSH
-            updateInterval = 50
+        updateInterval = 50
-        }.page { container ->
+        page { container ->
             val sinCosFlow = sinFlow.zip(cosFlow) { sin, cos ->
                 sin.double!! to cos.double!!
             }
@@ -140,6 +141,8 @@ suspend fun MagixEndpoint<DeviceMessage>.startDemoDeviceServer(): ApplicationEng
                     }
                 }
             }
-        }
+
-    }.apply { start() }
+        }
+    }
+}.apply { start() }
 

demo/all-things/src/main/kotlin/space/kscience/controls/demo/generateMessageSchema.kt

@@ -0,0 +1,10 @@
+package space.kscience.controls.demo
+
+//import com.github.ricky12awesome.jss.encodeToSchema
+//import com.github.ricky12awesome.jss.globalJson
+//import space.kscience.controls.api.DeviceMessage
+
+//fun main() {
+//    val schema = globalJson.encodeToSchema(DeviceMessage.serializer(), generateDefinitions = false)
+//    println(schema)
+//}

demo/car/build.gradle.kts

@@ -0,0 +1,52 @@
+plugins {
+    kotlin("jvm")
+    id("org.openjfx.javafxplugin") version "0.0.10"
+    application
+}
+
+
+repositories {
+    mavenCentral()
+    maven("https://repo.kotlin.link")
+}
+
+val ktorVersion: String by rootProject.extra
+val rsocketVersion: String by rootProject.extra
+
+dependencies {
+    implementation(projects.controlsCore)
+    implementation(projects.magix.magixApi)
+    implementation(projects.magix.magixServer)
+    implementation(projects.magix.magixRsocket)
+    implementation(projects.magix.magixZmq)
+    implementation(projects.controlsMagixClient)
+    implementation(projects.controlsStorage.controlsXodus)
+    implementation(projects.magix.magixStorage.magixStorageXodus)
+//    implementation(projects.controlsMongo)
+
+    implementation("io.ktor:ktor-client-cio:$ktorVersion")
+    implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.3.1")
+    implementation("no.tornado:tornadofx:1.7.20")
+    implementation("space.kscience:plotlykt-server:0.5.0")
+    implementation("ch.qos.logback:logback-classic:1.2.11")
+    implementation("org.jetbrains.xodus:xodus-entity-store:1.3.232")
+    implementation("org.jetbrains.xodus:xodus-environment:1.3.232")
+    implementation("org.jetbrains.xodus:xodus-vfs:1.3.232")
+//    implementation("org.litote.kmongo:kmongo-coroutine-serialization:4.4.0")
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
+    kotlinOptions {
+        jvmTarget = "11"
+        freeCompilerArgs = freeCompilerArgs + listOf("-Xjvm-default=all", "-Xopt-in=kotlin.RequiresOptIn")
+    }
+}
+
+javafx {
+    version = "14"
+    modules("javafx.controls")
+}
+
+application {
+    mainClass.set("space.kscience.controls.demo.car.VirtualCarControllerKt")
+}

demo/car/src/main/kotlin/space/kscience/controls/demo/car/IVirtualCar.kt

@@ -0,0 +1,27 @@
+package space.kscience.controls.demo.car
+
+import space.kscience.controls.api.Device
+import space.kscience.controls.spec.DeviceSpec
+
+interface IVirtualCar : Device {
+    var speedState: Vector2D
+    var locationState: Vector2D
+    var accelerationState: Vector2D
+
+    companion object : DeviceSpec<IVirtualCar>() {
+        /**
+         * Read-only speed
+         */
+        val speed by property(Vector2D, IVirtualCar::speedState)
+
+        /**
+         * Read-only location
+         */
+        val location by property(Vector2D, IVirtualCar::locationState)
+
+        /**
+         * writable acceleration
+         */
+        val acceleration by mutableProperty(Vector2D, IVirtualCar::accelerationState)
+    }
+}

demo/car/src/main/kotlin/space/kscience/controls/demo/car/MagixVirtualCar.kt

@@ -0,0 +1,48 @@
+package space.kscience.controls.demo.car
+
+import kotlinx.coroutines.launch
+import space.kscience.controls.api.PropertyChangedMessage
+import space.kscience.controls.client.controlsMagixFormat
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
+import space.kscience.dataforge.names.Name
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.api.subscribe
+import space.kscience.magix.rsocket.rSocketWithWebSockets
+import kotlin.time.ExperimentalTime
+
+class MagixVirtualCar(context: Context, meta: Meta) : VirtualCar(context, meta) {
+
+    private fun MagixEndpoint.launchMagixVirtualCarUpdate() = launch {
+        subscribe(controlsMagixFormat).collect { (_, payload) ->
+            (payload as? PropertyChangedMessage)?.let { message ->
+                if (message.sourceDevice == Name.parse("virtual-car")) {
+                    when (message.property) {
+                        "acceleration" -> IVirtualCar.acceleration.write(Vector2D.metaToObject(message.value))
+                    }
+                }
+            }
+        }
+    }
+
+
+    @OptIn(ExperimentalTime::class)
+    override suspend fun open() {
+        super.open()
+
+        val magixEndpoint = MagixEndpoint.rSocketWithWebSockets(
+            meta["magixServerHost"].string ?: "localhost",
+        )
+
+        launch {
+            magixEndpoint.launchMagixVirtualCarUpdate()
+        }
+    }
+
+    companion object : Factory<MagixVirtualCar> {
+        override fun build(context: Context, meta: Meta): MagixVirtualCar = MagixVirtualCar(context, meta)
+    }
+}

demo/car/src/main/kotlin/space/kscience/controls/demo/car/VirtualCar.kt

@@ -0,0 +1,115 @@
+@file:OptIn(ExperimentalTime::class)
+
+package space.kscience.controls.demo.car
+
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import kotlinx.datetime.Clock
+import kotlinx.datetime.Instant
+import space.kscience.controls.spec.DeviceBySpec
+import space.kscience.controls.spec.doRecurring
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.MetaRepr
+import space.kscience.dataforge.meta.double
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.transformations.MetaConverter
+import kotlin.math.pow
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
+import kotlin.time.ExperimentalTime
+
+data class Vector2D(var x: Double = 0.0, var y: Double = 0.0) : MetaRepr {
+
+    override fun toMeta(): Meta = objectToMeta(this)
+
+    operator fun div(arg: Double): Vector2D = Vector2D(x / arg, y / arg)
+
+    companion object CoordinatesMetaConverter : MetaConverter<Vector2D> {
+        override fun metaToObject(meta: Meta): Vector2D = Vector2D(
+            meta["x"].double ?: 0.0,
+            meta["y"].double ?: 0.0
+        )
+
+        override fun objectToMeta(obj: Vector2D): Meta = Meta {
+            "x" put obj.x
+            "y" put obj.y
+        }
+    }
+}
+
+open class VirtualCar(context: Context, meta: Meta) : DeviceBySpec<VirtualCar>(IVirtualCar, context, meta), IVirtualCar {
+    private val timeScale = 1e-3
+
+    private val mass by meta.double(1000.0) // mass in kilograms
+
+    override var speedState: Vector2D = Vector2D()
+
+    override var locationState: Vector2D = Vector2D()
+
+    override var accelerationState: Vector2D = Vector2D()
+        set(value) {
+            update()
+            field = value
+        }
+
+    private var timeState: Instant? = null
+
+    private fun update(newTime: Instant = Clock.System.now()) {
+        //initialize time if it is not initialized
+        if (timeState == null) {
+            timeState = newTime
+            return
+        }
+
+        val dt: Double = (newTime - (timeState ?: return)).inWholeMilliseconds.toDouble() * timeScale
+
+        locationState.apply {
+            x += speedState.x * dt + accelerationState.x * dt.pow(2) / 2.0
+            y += speedState.y * dt + accelerationState.y * dt.pow(2) / 2.0
+        }
+
+        speedState.apply {
+            x += dt * accelerationState.x
+            y += dt * accelerationState.y
+        }
+
+        //TODO apply friction. One can introduce rotation of the cabin and different friction coefficients along the axis
+        launch {
+            //update logical states
+            IVirtualCar.location.read()
+            IVirtualCar.speed.read()
+            IVirtualCar.acceleration.read()
+        }
+
+    }
+
+    fun applyForce(force: Vector2D, duration: Duration) {
+        launch {
+            update()
+            accelerationState = force / mass
+            delay(duration)
+            accelerationState.apply {
+                x = 0.0
+                y = 0.0
+            }
+            update()
+        }
+    }
+
+    @OptIn(ExperimentalTime::class)
+    override suspend fun open() {
+        super<DeviceBySpec>.open()
+        //initializing the clock
+        timeState = Clock.System.now()
+        //starting regular updates
+        doRecurring(100.milliseconds) {
+            update()
+        }
+    }
+
+    companion object : Factory<VirtualCar> {
+        override fun build(context: Context, meta: Meta): VirtualCar = VirtualCar(context, meta)
+    }
+}

demo/car/src/main/kotlin/space/kscience/controls/demo/car/VirtualCarController.kt

@@ -0,0 +1,146 @@
+package space.kscience.controls.demo.car
+
+import io.ktor.server.engine.ApplicationEngine
+import javafx.beans.property.DoubleProperty
+import javafx.scene.Parent
+import javafx.scene.control.TextField
+import javafx.scene.layout.Priority
+import javafx.stage.Stage
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import space.kscience.controls.client.connectToMagix
+import space.kscience.controls.demo.car.IVirtualCar.Companion.acceleration
+import space.kscience.controls.manager.DeviceManager
+import space.kscience.controls.manager.install
+import space.kscience.controls.storage.storeMessages
+import space.kscience.controls.xodus.XodusDeviceMessageStorage
+import space.kscience.dataforge.context.*
+import space.kscience.dataforge.meta.Meta
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.rsocket.rSocketWithTcp
+import space.kscience.magix.server.RSocketMagixFlowPlugin
+import space.kscience.magix.server.startMagixServer
+import space.kscience.magix.storage.xodus.storeInXodus
+import space.kscince.magix.zmq.ZmqMagixFlowPlugin
+import tornadofx.*
+import java.nio.file.Paths
+
+class VirtualCarController : Controller(), ContextAware {
+
+    var virtualCar: VirtualCar? = null
+    var magixVirtualCar: MagixVirtualCar? = null
+    var magixServer: ApplicationEngine? = null
+    var xodusStorageJob: Job? = null
+    var storageEndpoint: MagixEndpoint? = null
+    //var mongoStorageJob: Job? = null
+
+    override val context = Context("demoDevice") {
+        plugin(DeviceManager)
+    }
+
+    private val deviceManager = context.fetch(DeviceManager, Meta {
+        "xodusConfig" put {
+            "entityStorePath" put deviceEntityStorePath.toString()
+        }
+    })
+
+    fun init() {
+        context.launch {
+            virtualCar = deviceManager.install("virtual-car", VirtualCar)
+
+            //starting magix event loop and connect it to entity store
+            magixServer = startMagixServer(RSocketMagixFlowPlugin(), ZmqMagixFlowPlugin())
+
+            storageEndpoint = MagixEndpoint.rSocketWithTcp("localhost").apply {
+                storeInXodus(this@launch, magixEntityStorePath)
+            }
+
+            magixVirtualCar = deviceManager.install("magix-virtual-car", MagixVirtualCar)
+            //connect to device entity store
+            xodusStorageJob = deviceManager.storeMessages(XodusDeviceMessageStorage)
+            //Create mongo client and connect to MongoDB
+            //mongoStorageJob = deviceManager.storeMessages(DefaultAsynchronousMongoClientFactory)
+            //Launch device client and connect it to the server
+            val deviceEndpoint = MagixEndpoint.rSocketWithTcp("localhost")
+            deviceManager.connectToMagix(deviceEndpoint)
+        }
+    }
+
+    fun shutdown() {
+        logger.info { "Shutting down..." }
+        magixServer?.stop(1000, 5000)
+        logger.info { "Magix server stopped" }
+        magixVirtualCar?.close()
+        logger.info { "Magix virtual car server stopped" }
+        virtualCar?.close()
+        logger.info { "Virtual car server stopped" }
+        context.close()
+    }
+
+    companion object {
+        val deviceEntityStorePath = Paths.get(".messages")
+        val magixEntityStorePath = Paths.get(".server_messages")
+    }
+}
+
+
+class VirtualCarControllerView : View(title = " Virtual car controller remote") {
+    private val controller: VirtualCarController by inject()
+    private var accelerationXProperty: DoubleProperty by singleAssign()
+    private var accelerationXTF: TextField by singleAssign()
+    private var accelerationYProperty: DoubleProperty by singleAssign()
+    private var accelerationYTF: TextField by singleAssign()
+
+    override val root: Parent = vbox {
+        hbox {
+            label("AccelerationX")
+            pane {
+                hgrow = Priority.ALWAYS
+            }
+            accelerationXProperty = doubleProperty()
+            accelerationXTF = textfield(accelerationXProperty)
+        }
+        hbox {
+            label("AccelerationY")
+            pane {
+                hgrow = Priority.ALWAYS
+            }
+            accelerationYProperty = doubleProperty()
+            accelerationYTF = textfield(accelerationYProperty)
+        }
+        button("Submit") {
+            useMaxWidth = true
+            action {
+                controller.virtualCar?.run {
+                    launch {
+                        acceleration.write(
+                            Vector2D(
+                                accelerationXProperty.get(),
+                                accelerationYProperty.get()
+                            )
+                        )
+                    }
+                }
+            }
+        }
+    }
+}
+
+class VirtualCarControllerApp : App(VirtualCarControllerView::class) {
+    private val controller: VirtualCarController by inject()
+
+    override fun start(stage: Stage) {
+        super.start(stage)
+        controller.init()
+    }
+
+    override fun stop() {
+        controller.shutdown()
+        super.stop()
+    }
+}
+
+
+fun main() {
+    launch<VirtualCarControllerApp>()
+}

demo/echo/build.gradle.kts

@@ -0,0 +1,32 @@
+plugins {
+    kotlin("jvm")
+    application
+}
+
+repositories {
+    mavenCentral()
+    maven("https://repo.kotlin.link")
+}
+
+val ktorVersion: String by rootProject.extra
+val rsocketVersion: String by rootProject.extra
+
+dependencies {
+    implementation(projects.magix.magixServer)
+    implementation(projects.magix.magixRsocket)
+    implementation(projects.magix.magixZmq)
+    implementation("io.ktor:ktor-client-cio:$ktorVersion")
+
+    implementation("ch.qos.logback:logback-classic:1.2.11")
+}
+
+tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().configureEach {
+    kotlinOptions {
+        jvmTarget = "11"
+        freeCompilerArgs = freeCompilerArgs + listOf("-Xjvm-default=all", "-Xopt-in=kotlin.RequiresOptIn")
+    }
+}
+
+application {
+    mainClass.set("space.kscience.controls.demo.echo.MainKt")
+}

demo/echo/src/main/kotlin/space/kscience/controls/demo/echo/main.kt

@@ -0,0 +1,87 @@
+package space.kscience.controls.demo.echo
+
+import kotlinx.coroutines.*
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.serialization.json.JsonObject
+import org.slf4j.LoggerFactory
+import space.kscience.magix.api.MagixEndpoint
+import space.kscience.magix.api.MagixFlowPlugin
+import space.kscience.magix.api.MagixMessage
+import space.kscience.magix.api.MagixMessageFilter
+import space.kscience.magix.rsocket.rSocketStreamWithWebSockets
+import space.kscience.magix.server.startMagixServer
+import kotlin.time.ExperimentalTime
+import kotlin.time.measureTime
+
+private suspend fun MagixEndpoint.collectEcho(scope: CoroutineScope, n: Int) {
+    val complete = CompletableDeferred<Boolean>()
+
+    val responseIds = HashSet<String>()
+
+    scope.launch {
+        subscribe(
+            MagixMessageFilter(
+                origin = listOf("loop")
+            )
+        ).collect { message ->
+            if (message.id?.endsWith(".response") == true) {
+                responseIds.add(message.parentId!!)
+            }
+            val parentId = message.parentId
+            if (parentId != null && parentId.toInt() >= n - 1) {
+                println("Losses ${(1 - responseIds.size.toDouble() / n) * 100}%")
+                complete.complete(true)
+                cancel()
+            }
+        }
+    }
+
+    scope.launch {
+        repeat(n) {
+            if (it % 20 == 0) delay(1)
+            broadcast(
+                MagixMessage(
+                    format = "test",
+                    payload = JsonObject(emptyMap()),
+                    origin = "test",
+                    target = "loop",
+                    id = it.toString()
+                )
+            )
+        }
+    }
+
+    complete.await()
+    println("completed")
+}
+
+
+@OptIn(ExperimentalTime::class)
+suspend fun main(): Unit = coroutineScope {
+    launch(Dispatchers.Default) {
+        val server = startMagixServer(MagixFlowPlugin { _, flow ->
+            val logger = LoggerFactory.getLogger("echo")
+            //echo each message
+            flow.onEach { message ->
+                if (message.parentId == null) {
+                    val m = message.copy(origin = "loop", parentId = message.id, id = message.id + ".response")
+                    logger.info(m.toString())
+                    flow.emit(m)
+                }
+            }.launchIn(this)
+        })
+
+
+        val responseTime = measureTime {
+            MagixEndpoint.rSocketStreamWithWebSockets("localhost").use {
+                it.collectEcho(this, 5000)
+            }
+        }
+
+        println(responseTime)
+
+        server.stop(500, 500)
+        cancel()
+    }
+}

demo/magix-demo/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
     application
 }
 

demo/magix-demo/src/main/kotlin/zmq.kt

@@ -7,33 +7,32 @@ import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.isActive
 import kotlinx.serialization.json.*
 import org.slf4j.LoggerFactory
-import ru.mipt.npm.magix.api.MagixEndpoint
+import space.kscience.magix.api.MagixEndpoint
-import ru.mipt.npm.magix.api.MagixMessage
+import space.kscience.magix.api.MagixMessage
-import ru.mipt.npm.magix.server.startMagixServer
+import space.kscience.magix.server.RSocketMagixFlowPlugin
-import ru.mipt.npm.magix.zmq.ZmqMagixEndpoint
+import space.kscience.magix.server.startMagixServer
+import space.kscince.magix.zmq.ZmqMagixEndpoint
+import space.kscince.magix.zmq.ZmqMagixFlowPlugin
 import java.awt.Desktop
 import java.net.URI
 
 
-suspend fun MagixEndpoint<JsonObject>.sendJson(
+suspend fun MagixEndpoint.sendJson(
     origin: String,
     format: String = "json",
     target: String? = null,
     id: String? = null,
     parentId: String? = null,
     user: JsonElement? = null,
-    builder: JsonObjectBuilder.() -> Unit
+    builder: JsonObjectBuilder.() -> Unit,
-): Unit = broadcast(MagixMessage(format, origin, buildJsonObject(builder), target, id, parentId, user))
+): Unit = broadcast(MagixMessage(format, buildJsonObject(builder), origin, target, id, parentId, user))
 
 internal const val numberOfMessages = 100
 
 suspend fun main(): Unit = coroutineScope {
     val logger = LoggerFactory.getLogger("magix-demo")
     logger.info("Starting magix server")
-    val server = startMagixServer(
+    val server = startMagixServer(RSocketMagixFlowPlugin(), ZmqMagixFlowPlugin(), buffer = 10)
-        buffer = 10,
-        enableRawRSocket = false //Disable rsocket to avoid kotlin 1.5 compatibility issue
-    )
 
     server.apply {
         val host = "localhost"//environment.connectors.first().host
@@ -44,11 +43,11 @@ suspend fun main(): Unit = coroutineScope {
 
     logger.info("Starting client")
     //Create zmq magix endpoint and wait for to finish
-    ZmqMagixEndpoint("tcp://localhost", JsonObject.serializer()).use { client ->
+    ZmqMagixEndpoint("localhost", "tcp").use { client ->
         logger.info("Starting subscription")
         client.subscribe().onEach {
             println(it.payload)
-            if (it.payload["index"]?.jsonPrimitive?.int == numberOfMessages) {
+            if (it.payload.jsonObject["index"]?.jsonPrimitive?.int == numberOfMessages) {
                 logger.info("Index $numberOfMessages reached. Terminating")
                 cancel()
             }

demo/mks-pdr900/build.gradle.kts

@@ -0,0 +1,21 @@
+plugins {
+    id("space.kscience.gradle.jvm")
+    application
+}
+
+//TODO to be moved to a separate project
+//
+//application{
+//    mainClass.set("ru.mipt.npm.devices.pimotionmaster.PiMotionMasterAppKt")
+//}
+
+kotlin{
+    explicitApi = null
+}
+
+val ktorVersion: String by rootProject.extra
+val dataforgeVersion: String by extra
+
+dependencies {
+    implementation(projects.controlsKtorTcp)
+}

demo/mks-pdr900/src/main/kotlin/center/sciprog/devices/mks/MksPdr900Device.kt

@@ -0,0 +1,109 @@
+package center.sciprog.devices.mks
+
+import kotlinx.coroutines.withTimeoutOrNull
+import space.kscience.controls.ports.Ports
+import space.kscience.controls.ports.SynchronousPort
+import space.kscience.controls.ports.respondStringWithDelimiter
+import space.kscience.controls.ports.synchronous
+import space.kscience.controls.spec.*
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.context.request
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.int
+import space.kscience.dataforge.meta.transformations.MetaConverter
+
+
+//TODO this device is not tested
+class MksPdr900Device(context: Context, meta: Meta) : DeviceBySpec<MksPdr900Device>(MksPdr900Device, context, meta) {
+
+    private val address by meta.int(253)
+
+    private val portDelegate = lazy {
+        val ports = context.request(Ports)
+        ports.buildPort(meta["port"] ?: error("Port is not defined in device configuration")).synchronous()
+    }
+
+    private val port: SynchronousPort by portDelegate
+
+    private val responsePattern: Regex by lazy {
+        ("@${address}ACK(.*);FF").toRegex()
+    }
+
+    private suspend fun talk(requestContent: String): String? = withTimeoutOrNull(5000) {
+        val answer = port.respondStringWithDelimiter(String.format("@%s%s;FF", address, requestContent), ";FF")
+        responsePattern.matchEntire(answer)?.groups?.get(1)?.value
+            ?: error("Message $answer does not match $responsePattern")
+    }
+
+    public suspend fun readPowerOn(): Boolean = when (val answer = talk("FP?")) {
+        "ON" -> true
+        "OFF" -> false
+        else -> error("Unknown answer for 'FP?': $answer")
+    }
+
+
+    public suspend fun writePowerOn(powerOnValue: Boolean) {
+        error.invalidate()
+        if (powerOnValue) {
+            val ans = talk("FP!ON")
+            if (ans == "ON") {
+                updateLogical(powerOn, true)
+            } else {
+                updateLogical(error, "Failed to set power state")
+            }
+        } else {
+            val ans = talk("FP!OFF")
+            if (ans == "OFF") {
+                updateLogical(powerOn, false)
+            } else {
+                updateLogical(error, "Failed to set power state")
+            }
+        }
+    }
+
+    public suspend fun readChannelData(channel: Int): Double? {
+        val answer: String? = talk("PR$channel?")
+        error.invalidate()
+        return if (answer.isNullOrEmpty()) {
+            //            updateState(PortSensor.CONNECTED_STATE, false)
+            updateLogical(error, "No connection")
+            null
+        } else {
+            val res = answer.toDouble()
+            if (res <= 0) {
+                updateLogical(powerOn, false)
+                updateLogical(error, "No power")
+                null
+            } else {
+                res
+            }
+        }
+    }
+
+
+    companion object : DeviceSpec<MksPdr900Device>(), Factory<MksPdr900Device> {
+
+        const val DEFAULT_CHANNEL: Int = 5
+
+        override fun build(context: Context, meta: Meta): MksPdr900Device = MksPdr900Device(context, meta)
+
+        val powerOn by booleanProperty(read = MksPdr900Device::readPowerOn, write = MksPdr900Device::writePowerOn)
+
+        val channel by logicalProperty(MetaConverter.int)
+
+        val value by doubleProperty(read = {
+            readChannelData(channel.get() ?: DEFAULT_CHANNEL)
+        })
+
+        val error by logicalProperty(MetaConverter.string)
+
+
+        override fun MksPdr900Device.onClose() {
+            if (portDelegate.isInitialized()) {
+                port.close()
+            }
+        }
+    }
+}

demo/mks-pdr900/src/main/kotlin/center/sciprog/devices/mks/NullableStringMetaConverter.kt

@@ -0,0 +1,10 @@
+package center.sciprog.devices.mks
+
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.string
+import space.kscience.dataforge.meta.transformations.MetaConverter
+
+object NullableStringMetaConverter : MetaConverter<String?> {
+    override fun metaToObject(meta: Meta): String? = meta.string
+    override fun objectToMeta(obj: String?): Meta = Meta {}
+}

demo/motors/build.gradle.kts

@@ -1,11 +1,16 @@
 plugins {
-    id("ru.mipt.npm.gradle.jvm")
+    id("space.kscience.gradle.jvm")
-    `maven-publish`
     application
+    id("org.openjfx.javafxplugin")
 }
 
 //TODO to be moved to a separate project
 
+javafx {
+    version = "17"
+    modules = listOf("javafx.controls")
+}
+
 application{
     mainClass.set("ru.mipt.npm.devices.pimotionmaster.PiMotionMasterAppKt")
 }
@@ -14,14 +19,11 @@ kotlin{
     explicitApi = null
 }
 
-kscience{
-    useFx(ru.mipt.npm.gradle.FXModule.CONTROLS, configuration = ru.mipt.npm.gradle.DependencyConfiguration.IMPLEMENTATION)
-}
-
 val ktorVersion: String by rootProject.extra
+val dataforgeVersion: String by extra
 
 dependencies {
-    implementation(project(":controls-tcp"))
+    implementation(project(":controls-ktor-tcp"))
     implementation(project(":controls-magix-client"))
     implementation("no.tornado:tornadofx:1.7.20")
 }

demo/motors/src/main/kotlin/ru/mipt/npm/devices/pimotionmaster/PiMotionMasterApp.kt

@@ -11,9 +11,12 @@ import javafx.scene.layout.VBox
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import ru.mipt.npm.controls.controllers.DeviceManager
+import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.maxPosition
-import ru.mipt.npm.controls.controllers.installing
+import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.minPosition
-import space.kscience.dataforge.context.Global
+import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.position
+import space.kscience.controls.manager.DeviceManager
+import space.kscience.controls.manager.installing
+import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.fetch
 import tornadofx.*
 
@@ -21,7 +24,7 @@ class PiMotionMasterApp : App(PiMotionMasterView::class)
 
 class PiMotionMasterController : Controller() {
     //initialize context
-    val context = Global.buildContext("piMotionMaster"){
+    val context = Context("piMotionMaster"){
         plugin(DeviceManager)
     }
 
@@ -40,28 +43,30 @@ fun VBox.piMotionMasterAxis(
     alignment = Pos.CENTER
     label(axisName)
     coroutineScope.launch {
-        val min = axis.minPosition.readTyped(true)
+        with(axis) {
-        val max = axis.maxPosition.readTyped(true)
+            val min: Double = minPosition.read()
-        val positionProperty = axis.position.fxProperty(axis)
+            val max: Double = maxPosition.read()
-        val startPosition = axis.position.readTyped(true)
+            val positionProperty = fxProperty(position)
-        runLater {
+            val startPosition = position.read()
-            vbox {
+            runLater {
-                hgrow = Priority.ALWAYS
+                vbox {
-                slider(min..max, startPosition) {
+                    hgrow = Priority.ALWAYS
-                    minWidth = 300.0
+                    slider(min..max, startPosition) {
-                    isShowTickLabels = true
+                        minWidth = 300.0
-                    isShowTickMarks = true
+                        isShowTickLabels = true
-                    minorTickCount = 10
+                        isShowTickMarks = true
-                    majorTickUnit = 1.0
+                        minorTickCount = 10
-                    valueProperty().onChange {
+                        majorTickUnit = 1.0
-                        coroutineScope.launch {
+                        valueProperty().onChange {
-                            axis.move(value)
+                            coroutineScope.launch {
+                                axis.move(value)
+                            }
                         }
                     }
-                }
+                    slider(min..max) {
-                slider(min..max) {
+                        isDisable = true
-                    isDisable = true
+                        valueProperty().bind(positionProperty)
-                    valueProperty().bind(positionProperty)
+                    }
                 }
             }
         }
@@ -82,7 +87,7 @@ class PiMotionMasterView : View() {
     private val controller: PiMotionMasterController by inject()
     val device = controller.motionMaster
 
-    private val connectedProperty: ReadOnlyProperty<Boolean> = device.connected.fxProperty(device)
+    private val connectedProperty: ReadOnlyProperty<Boolean> = device.fxProperty(PiMotionMasterDevice.connected)
     private val debugServerJobProperty = SimpleObjectProperty<Job>()
     private val debugServerStarted = debugServerJobProperty.booleanBinding { it != null }
     //private val axisList = FXCollections.observableArrayList<Map.Entry<String, PiMotionMasterDevice.Axis>>()

demo/motors/src/main/kotlin/ru/mipt/npm/devices/pimotionmaster/PiMotionMasterDevice.kt

@@ -0,0 +1,357 @@
+@file:Suppress("unused", "MemberVisibilityCanBePrivate")
+
+package ru.mipt.npm.devices.pimotionmaster
+
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.toList
+import kotlinx.coroutines.flow.transformWhile
+import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.sync.Mutex
+import kotlinx.coroutines.sync.withLock
+import kotlinx.coroutines.withTimeout
+import space.kscience.controls.api.DeviceHub
+import space.kscience.controls.api.PropertyDescriptor
+import space.kscience.controls.ports.*
+import space.kscience.controls.spec.*
+import space.kscience.dataforge.context.*
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.asValue
+import space.kscience.dataforge.meta.double
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.transformations.MetaConverter
+import space.kscience.dataforge.names.NameToken
+import kotlin.collections.component1
+import kotlin.collections.component2
+import kotlin.time.Duration
+import kotlin.time.Duration.Companion.milliseconds
+
+class PiMotionMasterDevice(
+    context: Context,
+    private val portFactory: PortFactory = KtorTcpPort,
+) : DeviceBySpec<PiMotionMasterDevice>(PiMotionMasterDevice, context), DeviceHub {
+
+    private var port: Port? = null
+    //TODO make proxy work
+    //PortProxy { portFactory(address ?: error("The device is not connected"), context) }
+
+
+    fun disconnect() {
+        runBlocking {
+            disconnect.invoke()
+        }
+    }
+
+    var timeoutValue: Duration = 200.milliseconds
+
+    /**
+     * Name-friendly accessor for axis
+     */
+    var axes: Map<String, Axis> = emptyMap()
+        private set
+
+    override val devices: Map<NameToken, Axis> = axes.mapKeys { (key, _) -> NameToken(key) }
+
+    private suspend fun failIfError(message: (Int) -> String = { "Failed with error code $it" }) {
+        val errorCode = getErrorCode()
+        if (errorCode != 0) error(message(errorCode))
+    }
+
+    fun connect(host: String, port: Int) {
+        runBlocking {
+            connect(Meta {
+                "host" put host
+                "port" put port
+            })
+        }
+    }
+
+    private val mutex = Mutex()
+
+    private suspend fun dispatchError(errorCode: Int) {
+        logger.error { "Error code: $errorCode" }
+        //TODO add error handling
+    }
+
+    private suspend fun sendCommandInternal(command: String, vararg arguments: String) {
+        val joinedArguments = if (arguments.isEmpty()) {
+            ""
+        } else {
+            arguments.joinToString(prefix = " ", separator = " ", postfix = "")
+        }
+        val stringToSend = "$command$joinedArguments\n"
+        port?.send(stringToSend) ?: error("Not connected to device")
+    }
+
+    suspend fun getErrorCode(): Int = mutex.withLock {
+        withTimeout(timeoutValue) {
+            sendCommandInternal("ERR?")
+            val errorString = port?.receiving()?.withStringDelimiter("\n")?.first() ?: error("Not connected to device")
+            errorString.trim().toInt()
+        }
+    }
+
+    /**
+     * Send a synchronous request and receive a list of lines as a response
+     */
+    @OptIn(ExperimentalCoroutinesApi::class)
+    private suspend fun request(command: String, vararg arguments: String): List<String> = mutex.withLock {
+        try {
+            withTimeout(timeoutValue) {
+                sendCommandInternal(command, *arguments)
+                val phrases = port?.receiving()?.withStringDelimiter("\n") ?: error("Not connected to device")
+                phrases.transformWhile { line ->
+                    emit(line)
+                    line.endsWith(" \n")
+                }.toList()
+            }
+        } catch (ex: Throwable) {
+            logger.warn { "Error during PIMotionMaster request. Requesting error code." }
+            val errorCode = getErrorCode()
+            dispatchError(errorCode)
+            logger.warn { "Error code $errorCode" }
+            error("Error code $errorCode")
+        }
+    }
+
+    private suspend fun requestAndParse(command: String, vararg arguments: String): Map<String, String> = buildMap {
+        request(command, *arguments).forEach { line ->
+            val (key, value) = line.split("=")
+            put(key, value.trim())
+        }
+    }
+
+    /**
+     * Send a synchronous command
+     */
+    private suspend fun send(command: String, vararg arguments: String) {
+        mutex.withLock {
+            withTimeout(timeoutValue) {
+                sendCommandInternal(command, *arguments)
+            }
+        }
+    }
+
+    companion object : DeviceSpec<PiMotionMasterDevice>(), Factory<PiMotionMasterDevice> {
+
+        override fun build(context: Context, meta: Meta): PiMotionMasterDevice = PiMotionMasterDevice(context)
+
+        val connected by booleanProperty(descriptorBuilder = {
+            info = "True if the connection address is defined and the device is initialized"
+        }) {
+            port != null
+        }
+
+
+        val initialize by unitAction {
+            send("INI")
+        }
+
+        val identity by stringProperty {
+            request("*IDN?").first()
+        }
+
+        val firmwareVersion by stringProperty {
+            request("VER?").first()
+        }
+
+        val stop by unitAction({
+            info = "Stop all axis"
+        }) {
+            send("STP")
+        }
+
+        val connect by metaAction(descriptorBuilder = {
+            info = "Connect to specific port and initialize axis"
+        }) { portSpec ->
+            //Clear current actions if present
+            if (port != null) {
+                disconnect()
+            }
+            //Update port
+            //address = portSpec.node
+            port = portFactory(portSpec ?: Meta.EMPTY, context)
+            updateLogical(connected, true)
+//        connector.open()
+            //Initialize axes
+            if (portSpec != null) {
+                val idn = identity.read()
+                failIfError { "Can't connect to $portSpec. Error code: $it" }
+                logger.info { "Connected to $idn on $portSpec" }
+                val ids = request("SAI?").map { it.trim() }
+                if (ids != axes.keys.toList()) {
+                    //re-define axes if needed
+                    axes = ids.associateWith { Axis(this, it) }
+                }
+                Meta(ids.map { it.asValue() }.asValue())
+                initialize()
+                failIfError()
+            }
+            null
+        }
+
+        val disconnect by metaAction({
+            info = "Disconnect the program from the device if it is connected"
+        }) {
+            port?.let{
+                stop()
+                it.close()
+            }
+            port = null
+            updateLogical(connected, false)
+            null
+        }
+
+
+        val timeout by mutableProperty(MetaConverter.duration, PiMotionMasterDevice::timeoutValue) {
+            info = "Timeout"
+        }
+    }
+
+
+    class Axis(
+        val mm: PiMotionMasterDevice,
+        val axisId: String
+    ) : DeviceBySpec<Axis>(Axis, mm.context) {
+
+        /**
+         * TODO Move to head device and abstract
+         */
+        private suspend fun readAxisBoolean(command: String): Boolean =
+            (mm.requestAndParse(command, axisId)[axisId]?.toIntOrNull()
+                ?: error("Malformed $command response. Should include integer value for $axisId")) != 0
+
+        /**
+         * TODO Move to head device and abstract
+         */
+        private suspend fun writeAxisBoolean(command: String, value: Boolean): Boolean {
+            val boolean = if (value) {
+                "1"
+            } else {
+                "0"
+            }
+            mm.send(command, axisId, boolean)
+            mm.failIfError()
+            return value
+        }
+
+        suspend fun move(target: Double) {
+            move(target.asMeta())
+        }
+
+        companion object : DeviceSpec<Axis>() {
+
+            private fun axisBooleanProperty(
+                command: String,
+                descriptorBuilder: PropertyDescriptor.() -> Unit = {}
+            ) = booleanProperty(
+                read = {
+                    readAxisBoolean("$command?")
+                },
+                write = {
+                    writeAxisBoolean(command, it)
+                },
+                descriptorBuilder = descriptorBuilder
+            )
+
+            private fun axisNumberProperty(
+                command: String,
+                descriptorBuilder: PropertyDescriptor.() -> Unit = {}
+            ) = doubleProperty(
+                read = {
+                    mm.requestAndParse("$command?", axisId)[axisId]?.toDoubleOrNull()
+                        ?: error("Malformed $command response. Should include float value for $axisId")
+                },
+                write = { newValue ->
+                    mm.send(command, axisId, newValue.toString())
+                    mm.failIfError()
+                },
+                descriptorBuilder = descriptorBuilder
+            )
+
+            val enabled by axisBooleanProperty("EAX") {
+                info = "Motor enable state."
+            }
+
+            val halt by unitAction {
+                mm.send("HLT", axisId)
+            }
+
+            val targetPosition by axisNumberProperty("MOV") {
+                info = """
+                Sets a new absolute target position for the specified axis.
+                Servo mode must be switched on for the commanded axis prior to using this command (closed-loop operation).
+            """.trimIndent()
+            }
+
+            val onTarget by booleanProperty({
+                info = "Queries the on-target state of the specified axis."
+            }) {
+                readAxisBoolean("ONT?")
+            }
+
+            val reference by booleanProperty({
+                info = "Get Referencing Result"
+            }) {
+                readAxisBoolean("FRF?")
+            }
+
+            val moveToReference by unitAction {
+                mm.send("FRF", axisId)
+            }
+
+            val minPosition by doubleProperty({
+                info = "Minimal position value for the axis"
+            }) {
+                mm.requestAndParse("TMN?", axisId)[axisId]?.toDoubleOrNull()
+                    ?: error("Malformed `TMN?` response. Should include float value for $axisId")
+            }
+
+            val maxPosition by doubleProperty({
+                info = "Maximal position value for the axis"
+            }) {
+                mm.requestAndParse("TMX?", axisId)[axisId]?.toDoubleOrNull()
+                    ?: error("Malformed `TMX?` response. Should include float value for $axisId")
+            }
+
+            val position by doubleProperty({
+                info = "The current axis position."
+            }) {
+                mm.requestAndParse("POS?", axisId)[axisId]?.toDoubleOrNull()
+                    ?: error("Malformed `POS?` response. Should include float value for $axisId")
+            }
+
+            val openLoopTarget by axisNumberProperty("OMA") {
+                info = "Position for open-loop operation."
+            }
+
+            val closedLoop by axisBooleanProperty("SVO") {
+                info = "Servo closed loop mode"
+            }
+
+            val velocity by axisNumberProperty("VEL") {
+                info = "Velocity value for closed-loop operation"
+            }
+
+            val move by metaAction {
+                val target = it.double ?: it?.get("target").double ?: error("Unacceptable target value $it")
+                closedLoop.write(true)
+                //optionally set velocity
+                it?.get("velocity").double?.let { v ->
+                    velocity.write(v)
+                }
+                targetPosition.write(target)
+                //read `onTarget` and `position` properties in a cycle until movement is complete
+                while (!onTarget.read()) {
+                    position.read()
+                    delay(200)
+                }
+                null
+            }
+
+        }
+
+    }
+
+}

demo/motors/src/main/kotlin/ru/mipt/npm/devices/pimotionmaster/PiMotionMasterVirtualDevice.kt

@@ -5,9 +5,9 @@ import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.sync.Mutex
 import kotlinx.coroutines.sync.withLock
-import ru.mipt.npm.controls.api.Socket
+import space.kscience.controls.api.Socket
-import ru.mipt.npm.controls.ports.AbstractPort
+import space.kscience.controls.ports.AbstractPort
-import ru.mipt.npm.controls.ports.withDelimiter
+import space.kscience.controls.ports.withDelimiter
 import space.kscience.dataforge.context.*
 import kotlin.math.abs
 import kotlin.time.Duration

demo/motors/src/main/kotlin/ru/mipt/npm/devices/pimotionmaster/fxDeviceProperties.kt

@@ -0,0 +1,66 @@
+package ru.mipt.npm.devices.pimotionmaster
+
+import javafx.beans.property.ObjectPropertyBase
+import javafx.beans.property.Property
+import javafx.beans.property.ReadOnlyProperty
+import space.kscience.controls.api.Device
+import space.kscience.controls.spec.*
+import space.kscience.dataforge.context.info
+import space.kscience.dataforge.context.logger
+import tornadofx.*
+
+/**
+ * Bind a FX property to a device property with a given [spec]
+ */
+fun <D : Device, T : Any> Device.fxProperty(
+    spec: DevicePropertySpec<D, T>
+): ReadOnlyProperty<T> = object : ObjectPropertyBase<T>() {
+    override fun getBean(): Any = this
+    override fun getName(): String = spec.name
+
+    init {
+        //Read incoming changes
+        onPropertyChange(spec) {
+            if (it != null) {
+                runLater {
+                    try {
+                        set(it)
+                    } catch (ex: Throwable) {
+                        logger.info { "Failed to set property $name to $it" }
+                    }
+                }
+            } else {
+                invalidated()
+            }
+        }
+    }
+}
+
+fun <D : Device, T : Any> D.fxProperty(spec: WritableDevicePropertySpec<D, T>): Property<T> =
+    object : ObjectPropertyBase<T>() {
+        override fun getBean(): Any = this
+        override fun getName(): String = spec.name
+
+        init {
+            //Read incoming changes
+            onPropertyChange(spec) {
+                if (it != null) {
+                    runLater {
+                        try {
+                            set(it)
+                        } catch (ex: Throwable) {
+                            logger.info { "Failed to set property $name to $it" }
+                        }
+                    }
+                } else {
+                    invalidated()
+                }
+            }
+
+            onChange { newValue ->
+                if (newValue != null) {
+                    write(spec, newValue)
+                }
+            }
+        }
+    }

demo/motors/src/main/kotlin/ru/mipt/npm/devices/pimotionmaster/piDebugServer.kt

@@ -8,10 +8,8 @@ import io.ktor.util.InternalAPI
 import io.ktor.util.moveToByteArray
 import io.ktor.utils.io.writeAvailable
 import kotlinx.coroutines.*
-import kotlinx.coroutines.flow.collect
 import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.Global
-import java.net.InetSocketAddress
 
 val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
     throwable.printStackTrace()
@@ -20,7 +18,7 @@ val exceptionHandler = CoroutineExceptionHandler { _, throwable ->
 @OptIn(InternalAPI::class)
 fun Context.launchPiDebugServer(port: Int, axes: List<String>): Job = launch(exceptionHandler) {
     val virtualDevice = PiMotionMasterVirtualDevice(this@launchPiDebugServer, axes)
-    val server = aSocket(ActorSelectorManager(Dispatchers.IO)).tcp().bind(InetSocketAddress("localhost", port))
+    val server = aSocket(ActorSelectorManager(Dispatchers.IO)).tcp().bind("localhost", port)
     println("Started virtual port server at ${server.localAddress}")
 
     while (isActive) {

demo/src/main/kotlin/ru/mipt/npm/controls/demo/DemoDevice.kt

@@ -1,60 +0,0 @@
-package ru.mipt.npm.controls.demo
-
-import kotlinx.coroutines.launch
-import ru.mipt.npm.controls.properties.*
-import space.kscience.dataforge.meta.Meta
-import space.kscience.dataforge.meta.transformations.MetaConverter
-import java.time.Instant
-import kotlin.time.Duration
-import kotlin.time.ExperimentalTime
-
-
-class DemoDevice : DeviceBySpec<DemoDevice>(DemoDevice) {
-    private var timeScaleState = 5000.0
-    private var sinScaleState = 1.0
-    private var cosScaleState = 1.0
-
-    companion object : DeviceSpec<DemoDevice>(::DemoDevice) {
-        // register virtual properties based on actual object state
-        val timeScale by property(MetaConverter.double, DemoDevice::timeScaleState)
-        val sinScale by property(MetaConverter.double, DemoDevice::sinScaleState)
-        val cosScale by property(MetaConverter.double, DemoDevice::cosScaleState)
-
-        val sin by doubleProperty {
-            val time = Instant.now()
-            kotlin.math.sin(time.toEpochMilli().toDouble() / timeScaleState) * sinScaleState
-        }
-
-        val cos by doubleProperty {
-            val time = Instant.now()
-            kotlin.math.cos(time.toEpochMilli().toDouble() / timeScaleState) * sinScaleState
-        }
-
-        val coordinates by metaProperty {
-            Meta {
-                val time = Instant.now()
-                "time" put time.toEpochMilli()
-                "x" put read(sin)
-                "y" put read(cos)
-            }
-        }
-
-        val resetScale by action(MetaConverter.meta, MetaConverter.meta) {
-            timeScale.write(5000.0)
-            sinScale.write(1.0)
-            cosScale.write(1.0)
-            null
-        }
-
-        @OptIn(ExperimentalTime::class)
-        override fun DemoDevice.onStartup() {
-            launch {
-                sinScale.read()
-                cosScale.read()
-            }
-            doRecurring(Duration.milliseconds(50)){
-                coordinates.read()
-            }
-        }
-    }
-}

demo/src/main/kotlin/ru/mipt/npm/controls/demo/generateMessageSchema.kt

@@ -1,10 +0,0 @@
-package ru.mipt.npm.controls.demo
-
-import com.github.ricky12awesome.jss.encodeToSchema
-import com.github.ricky12awesome.jss.globalJson
-import ru.mipt.npm.controls.api.DeviceMessage
-
-fun main() {
-    val schema = globalJson.encodeToSchema(DeviceMessage.serializer(), generateDefinitions = false)
-    println(schema)
-}

gradle.properties

@@ -0,0 +1,10 @@
+kotlin.code.style=official
+kotlin.mpp.stability.nowarn=true
+kotlin.native.ignoreDisabledTargets=true
+
+org.gradle.parallel=true
+
+publishing.github=false
+publishing.sonatype=false
+
+toolsVersion=0.14.3-kotlin-1.8.10

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

magix/magix-api/build.gradle.kts

@@ -1,9 +1,12 @@
 plugins {
-    id("ru.mipt.npm.gradle.mpp")
+    id("space.kscience.gradle.mpp")
     `maven-publish`
 }
 
 kscience {
+    jvm()
+    js()
+    native()
     useCoroutines()
     useSerialization{
         json()