Merge remote-tracking branch 'space/dev' into dev

# Conflicts:
#	gradle/wrapper/gradle-wrapper.properties

build.gradle.kts

@@ -2,7 +2,7 @@ plugins {
     id("ru.mipt.npm.gradle.project")
 }
 
-val dataforgeVersion: String by extra("0.5.1")
+val dataforgeVersion: String by extra("0.5.2")
 val ktorVersion: String by extra(ru.mipt.npm.gradle.KScienceVersions.ktorVersion)
 val rsocketVersion by extra("0.13.1")
 

controls-core/src/commonMain/kotlin/ru/mipt/npm/controls/controllers/deviceMessages.kt

@@ -80,6 +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-magix-client/src/commonMain/kotlin/ru/mipt/npm/controls/client/dfMagix.kt

@@ -29,6 +29,7 @@ internal fun generateId(request: MagixMessage<*>): String = if (request.id != nu
 public fun DeviceManager.connectToMagix(
     endpoint: MagixEndpoint<DeviceMessage>,
     endpointID: String = DATAFORGE_MAGIX_FORMAT,
+    preSendAction: (MagixMessage<*>) -> Unit = {}
 ): Job = context.launch {
     endpoint.subscribe().onEach { request ->
         val responsePayload = respondHubMessage(request.payload)
@@ -48,13 +49,15 @@ public fun DeviceManager.connectToMagix(
     }.launchIn(this)
 
     hubMessageFlow(this).onEach { payload ->
-        endpoint.broadcast(
+        val magixMessage = MagixMessage(
-            MagixMessage(
             format = DATAFORGE_MAGIX_FORMAT,
             id = "df[${payload.hashCode()}]",
             origin = endpointID,
             payload = payload
         )
+        preSendAction(magixMessage)
+        endpoint.broadcast(
+            magixMessage
         )
     }.catch { error ->
         logger.error(error) { "Error while sending a message" }

controls-mongo/build.gradle.kts

@@ -0,0 +1,13 @@
+plugins {
+    id("ru.mipt.npm.gradle.jvm")
+    `maven-publish`
+}
+
+val kmongoVersion = "4.4.0"
+
+dependencies {
+    implementation(projects.controlsCore)
+    implementation(projects.magix.magixApi)
+    implementation(projects.controlsMagixClient)
+    implementation("org.litote.kmongo:kmongo-coroutine-serialization:$kmongoVersion")
+}

controls-mongo/src/main/kotlin/ru/mipt/npm/controls/mongo/connections.kt

@@ -0,0 +1,58 @@
+package ru.mipt.npm.controls.mongo
+
+import kotlinx.coroutines.InternalCoroutinesApi
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlinx.coroutines.launch
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import org.litote.kmongo.coroutine.CoroutineClient
+import org.litote.kmongo.coroutine.coroutine
+import org.litote.kmongo.coroutine.insertOne
+import org.litote.kmongo.reactivestreams.KMongo
+import ru.mipt.npm.controls.api.DeviceMessage
+import ru.mipt.npm.controls.controllers.DeviceManager
+import ru.mipt.npm.controls.controllers.hubMessageFlow
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.context.debug
+import space.kscience.dataforge.context.logger
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
+
+internal object DefaultMongoConfig {
+    const val databaseName = "deviceMessage"
+}
+
+public object MongoClientFactory : Factory<CoroutineClient> {
+    private const val connectionString: String = "mongodb://mongoadmin:secret@localhost:27888"
+
+    override fun invoke(meta: Meta, context: Context): CoroutineClient = meta["mongoConfig"]?.get("connectionString")?.string?.let {
+        KMongo.createClient(it).coroutine
+    } ?: KMongo.createClient(connectionString).coroutine
+}
+
+@OptIn(InternalCoroutinesApi::class)
+public fun DeviceManager.connectMongo(
+    factory: Factory<CoroutineClient>,
+    filterCondition: suspend (DeviceMessage) -> Boolean  = { true }
+): Job {
+    val client = factory.invoke(meta, context)
+    logger.debug { "Mongo client opened" }
+    val collection = client
+        .getDatabase(meta["mongoConfig"]?.get("databaseName")?.string ?: DefaultMongoConfig.databaseName)
+        .getCollection<DeviceMessage>()
+    return hubMessageFlow(context).filter(filterCondition).onEach { message ->
+        context.launch {
+                collection.insertOne(Json.encodeToString(message))
+        }
+    }.launchIn(context).apply {
+        invokeOnCompletion(onCancelling = true) {
+            logger.debug { "Mongo client closed" }
+            client.close()
+        }
+    }
+}

controls-xodus/build.gradle.kts

@@ -0,0 +1,17 @@
+plugins {
+    id("ru.mipt.npm.gradle.jvm")
+    `maven-publish`
+}
+
+val xodusVersion = "1.3.232"
+
+dependencies {
+    implementation(projects.controlsCore)
+    implementation(projects.magix.magixApi)
+    implementation(projects.controlsMagixClient)
+    implementation(projects.magix.magixServer)
+    implementation(projects.xodusSerialization)
+    implementation("org.jetbrains.xodus:xodus-entity-store:$xodusVersion")
+    implementation("org.jetbrains.xodus:xodus-environment:$xodusVersion")
+    implementation("org.jetbrains.xodus:xodus-vfs:$xodusVersion")
+}

controls-xodus/src/main/kotlin/ru/mipt/npm/controls/xodus/connections.kt

@@ -0,0 +1,99 @@
+package ru.mipt.npm.controls.xodus
+
+import io.ktor.application.Application
+import jetbrains.exodus.entitystore.PersistentEntityStore
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import kotlinx.coroutines.InternalCoroutinesApi
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.*
+import kotlinx.coroutines.job
+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.magix.server.GenericMagixMessage
+import ru.mipt.npm.xodus.serialization.json.encodeToEntity
+import space.kscience.dataforge.context.Context
+import space.kscience.dataforge.context.Factory
+import space.kscience.dataforge.context.debug
+import space.kscience.dataforge.context.logger
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.meta.get
+import space.kscience.dataforge.meta.string
+import space.kscience.dataforge.names.Name
+
+private const val DEFAULT_XODUS_STORE_PATH = ".storage"
+private val XODUS_STORE_PROPERTY = Name.of("xodus", "entityStorePath")
+
+private fun Context.getPersistentEntityStore(meta: Meta = Meta.EMPTY): PersistentEntityStore {
+    val storePath = meta[XODUS_STORE_PROPERTY]?.string
+        ?: properties[XODUS_STORE_PROPERTY]?.string
+        ?: DEFAULT_XODUS_STORE_PATH
+
+    return PersistentEntityStores.newInstance(storePath)
+}
+
+internal val defaultPersistentStoreFactory = object : Factory<PersistentEntityStore> {
+    override fun invoke(meta: Meta, context: Context): PersistentEntityStore = context.getPersistentEntityStore(meta)
+}
+
+@OptIn(InternalCoroutinesApi::class)
+public fun DeviceManager.storeMessagesInXodus(
+    factory: Factory<PersistentEntityStore> = defaultPersistentStoreFactory,
+    filterCondition: suspend (DeviceMessage) -> Boolean = { true },
+): Job {
+    val entityStore = factory(Meta.EMPTY, context)
+    logger.debug { "Device entity store opened" }
+
+    return hubMessageFlow(context).filter(filterCondition).onEach { message ->
+        entityStore.encodeToEntity(message, "DeviceMessage")
+    }.launchIn(context).apply {
+        invokeOnCompletion(onCancelling = true) {
+            entityStore.close()
+            logger.debug { "Device entity store closed" }
+        }
+    }
+}
+
+//public fun CoroutineScope.startMagixServer(
+//    entityStore: PersistentEntityStore,
+//    flowFilter: suspend (GenericMagixMessage) -> Boolean = { true },
+//    port: Int = MagixEndpoint.DEFAULT_MAGIX_HTTP_PORT,
+//    buffer: Int = 100,
+//    enableRawRSocket: Boolean = true,
+//    enableZmq: Boolean = true,
+//    applicationConfiguration: Application.(MutableSharedFlow<GenericMagixMessage>) -> Unit = {},
+//): ApplicationEngine = startMagixServer(
+//    port, buffer, enableRawRSocket, enableZmq
+//) { flow ->
+//    applicationConfiguration(flow)
+//    flow.filter(flowFilter).onEach { message ->
+//        entityStore.executeInTransaction { txn ->
+//            val entity = txn.newEntity("MagixMessage")
+//            entity.setProperty("value", message.toString())
+//        }
+//    }
+//}
+
+internal fun Flow<GenericMagixMessage>.storeInXodus(
+    entityStore: PersistentEntityStore,
+    flowFilter: (GenericMagixMessage) -> Boolean = { true },
+) {
+    filter(flowFilter).onEach { message ->
+        entityStore.encodeToEntity(message, "MagixMessage")
+    }
+}
+
+@OptIn(InternalCoroutinesApi::class)
+public fun Application.storeInXodus(
+    flow: MutableSharedFlow<GenericMagixMessage>,
+    meta: Meta = Meta.EMPTY,
+    factory: Factory<PersistentEntityStore> = defaultPersistentStoreFactory,
+    flowFilter: (GenericMagixMessage) -> Boolean = { true },
+) {
+    val entityStore = factory(meta)
+
+    flow.storeInXodus(entityStore, flowFilter)
+    coroutineContext.job.invokeOnCompletion(onCancelling = true) {
+        entityStore.close()
+    }
+}

controls-xodus/src/main/kotlin/ru/mipt/npm/controls/xodus/converters.kt

@@ -0,0 +1,73 @@
+package ru.mipt.npm.controls.xodus
+
+import jetbrains.exodus.entitystore.Entity
+import jetbrains.exodus.entitystore.StoreTransaction
+import kotlinx.datetime.Instant
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonElement
+import ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.magix.api.MagixMessage
+import space.kscience.dataforge.meta.MetaSerializer
+import space.kscience.dataforge.meta.isLeaf
+import space.kscience.dataforge.names.Name
+import space.kscience.dataforge.values.Value
+import space.kscience.dataforge.values.ValueType
+
+internal fun PropertyChangedMessage.toEntity(transaction: StoreTransaction): Entity {
+    val entity = transaction.newEntity("PropertyChangedMessage")
+    entity.setProperty("property", property)
+    entity.setProperty("value", value.toString())
+    entity.setProperty("sourceDevice", sourceDevice.toString())
+    targetDevice?.let { entity.setProperty("targetDevice", it.toString()) }
+    comment?.let { entity.setProperty("comment", it) }
+    time?.let { entity.setProperty("time", it.toEpochMilliseconds()) }
+    return entity
+}
+
+internal fun Entity.toPropertyChangedMessage(): PropertyChangedMessage? {
+    if (getProperty("property") == null || getProperty("value") == null || getProperty("sourceDevice") == null) {
+        return null
+    }
+
+    return PropertyChangedMessage(
+        getProperty("property") as String,
+        Json.decodeFromString(MetaSerializer, getProperty("value") as String),
+        Name.parse(getProperty("sourceDevice") as String),
+        getProperty("targetDevice")?.let { Name.parse(it as String) },
+        getProperty("comment")?.let { it as String },
+        getProperty("time")?.let { Instant.fromEpochMilliseconds(it as Long) }
+    )
+}
+
+internal fun <T> MagixMessage<T>.toEntity(transaction: StoreTransaction): Entity {
+    val entity = transaction.newEntity("MagixMessage")
+    entity.setProperty("format", format)
+    entity.setProperty("origin", origin)
+    if (payload is PropertyChangedMessage) {
+        val payloadEntity = (payload as PropertyChangedMessage).toEntity(transaction)
+        entity.setLink("payload", payloadEntity)
+    }
+    target?.let { entity.setProperty("target", it) }
+    id?.let { entity.setProperty("id", it) }
+    parentId?.let { entity.setProperty("parentId", it) }
+    user?.let { entity.setProperty("user", it.toString()) }
+    return entity
+}
+
+internal fun Entity.toMagixMessage(): MagixMessage<PropertyChangedMessage>? {
+    if (getProperty("format") == null || getProperty("origin") == null) {
+        return null
+    }
+
+    return getLink("payload")?.toPropertyChangedMessage()?.let { propertyChangedMessage ->
+        MagixMessage(
+            getProperty("format") as String,
+            getProperty("origin") as String,
+            propertyChangedMessage,
+            getProperty("target")?.let { it as String },
+            getProperty("id")?.let { it as String },
+            getProperty("parentId")?.let { it as String },
+            getProperty("user")?.let { Json.decodeFromString(JsonElement.serializer(), it as String) }
+        )
+    }
+}

controls-xodus/src/main/kotlin/ru/mipt/npm/controls/xodus/util/queries.kt

@@ -0,0 +1,15 @@
+package ru.mipt.npm.controls.xodus.util
+
+import jetbrains.exodus.entitystore.StoreTransaction
+import kotlinx.datetime.Instant
+import ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.controls.xodus.toPropertyChangedMessage
+
+public fun StoreTransaction.selectPropertyChangedMessagesFromRange(
+    range: ClosedRange<Instant>
+): List<PropertyChangedMessage> = find(
+    "PropertyChangedMessage",
+    "time",
+    range.start.toEpochMilliseconds(),
+    range.endInclusive.toEpochMilliseconds()
+).mapNotNull { it.toPropertyChangedMessage() }

controls-xodus/src/test/kotlin/ru/mipt/npm/controls/xodus/ConvertersTest.kt

@@ -0,0 +1,60 @@
+package ru.mipt.npm.controls.xodus
+
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import kotlinx.datetime.Instant
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.JsonPrimitive
+import org.junit.jupiter.api.AfterAll
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.Test
+import ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.magix.api.MagixMessage
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import java.io.File
+import kotlin.test.assertEquals
+
+internal class ConvertersTest {
+    companion object {
+        private val storeName = ".converters_test"
+        private val entityStore = PersistentEntityStores.newInstance(storeName)
+        private val expectedMessage = MagixMessage(
+            "dataforge",
+            "dataforge",
+            PropertyChangedMessage(
+                "acceleration",
+                Meta {
+                    "x" put 3.0
+                    "y" put 9.0
+                },
+                Name.parse("virtual-car"),
+                Name.parse("magix-virtual-car"),
+                time = Instant.fromEpochMilliseconds(1337)
+            ),
+            "magix-virtual-car",
+            user = JsonObject(content = mapOf(Pair("name", JsonPrimitive("SCADA"))))
+        )
+
+        @BeforeAll
+        @JvmStatic
+        fun createEntities() {
+            entityStore.executeInTransaction {
+                expectedMessage.toEntity(it)
+            }
+        }
+
+        @AfterAll
+        @JvmStatic
+        fun deleteDatabase() {
+            entityStore.close()
+            File(storeName).deleteRecursively()
+        }
+    }
+
+    @Test
+    fun testMagixMessageAndPropertyChangedMessageConverters() {
+        assertEquals(expectedMessage, entityStore.computeInReadonlyTransaction {
+            it.getAll("MagixMessage").first?.toMagixMessage()
+        }!!)
+    }
+}

controls-xodus/src/test/kotlin/ru/mipt/npm/controls/xodus/util/QueriesTest.kt

@@ -0,0 +1,62 @@
+package ru.mipt.npm.controls.xodus.util
+
+import jetbrains.exodus.entitystore.PersistentEntityStores
+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 ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.controls.xodus.toEntity
+import space.kscience.dataforge.meta.Meta
+import java.io.File
+
+internal class QueriesTest {
+    companion object {
+        private val storeName = ".queries_test"
+        private val entityStore = PersistentEntityStores.newInstance(storeName)
+
+        private val propertyChangedMessages = listOf(
+            PropertyChangedMessage(
+                "",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(1000)
+            ),
+            PropertyChangedMessage(
+                "",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(1500)
+            ),
+            PropertyChangedMessage(
+                "",
+                Meta.EMPTY,
+                time = Instant.fromEpochMilliseconds(2000)
+            )
+        )
+
+        @BeforeAll
+        @JvmStatic
+        fun createEntities() {
+            entityStore.executeInTransaction { transaction ->
+                propertyChangedMessages.forEach {
+                    it.toEntity(transaction)
+                }
+            }
+        }
+
+        @AfterAll
+        @JvmStatic
+        fun deleteDatabase() {
+            entityStore.close()
+            File(storeName).deleteRecursively()
+        }
+    }
+
+    @Test
+    fun testFromTo() {
+        assertEquals(propertyChangedMessages.subList(0, 2).toSet(), entityStore.computeInReadonlyTransaction {
+            it.selectPropertyChangedMessagesFromRange( Instant.fromEpochMilliseconds(1000)..Instant.fromEpochMilliseconds(1500))
+        }.toSet())
+    }
+
+}

demo/car/build.gradle.kts

@@ -19,12 +19,18 @@ dependencies {
     implementation(projects.magix.magixServer)
     implementation(projects.magix.magixRsocket)
     implementation(projects.controlsMagixClient)
+    implementation(projects.controlsXodus)
+    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-dev-1")
     implementation("ch.qos.logback:logback-classic:1.2.3")
+    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 {

demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/MagixVirtualCar.kt

@@ -14,8 +14,7 @@ import space.kscience.dataforge.meta.string
 import space.kscience.dataforge.names.Name
 import kotlin.time.ExperimentalTime
 
-class MagixVirtualCar(context: Context, meta: Meta)
+class MagixVirtualCar(context: Context, meta: Meta) : VirtualCar(context, meta) {
-    : VirtualCar(context, meta) {
 
     private suspend fun MagixEndpoint<DeviceMessage>.startMagixVirtualCarUpdate() {
         launch {

demo/car/src/main/kotlin/ru/mipt/npm/controls/demo/car/VirtualCarController.kt

@@ -1,42 +1,70 @@
 package ru.mipt.npm.controls.demo.car
 
-import io.ktor.server.engine.*
+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 ru.mipt.npm.controls.api.DeviceMessage
 import ru.mipt.npm.controls.client.connectToMagix
 import ru.mipt.npm.controls.controllers.DeviceManager
 import ru.mipt.npm.controls.controllers.install
 import ru.mipt.npm.controls.demo.car.IVirtualCar.Companion.acceleration
+import ru.mipt.npm.controls.mongo.MongoClientFactory
+import ru.mipt.npm.controls.mongo.connectMongo
+import ru.mipt.npm.controls.xodus.storeInXodus
+import ru.mipt.npm.controls.xodus.storeMessagesInXodus
 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.dataforge.meta.Meta
 import tornadofx.*
+import java.nio.file.Paths
+
+internal object VirtualCarControllerConfig {
+    val deviceEntityStorePath = Paths.get(".messages")
+    val magixEntityStorePath = Paths.get(".server_messages")
+}
 
 class VirtualCarController : Controller(), ContextAware {
 
     var virtualCar: VirtualCar? = null
     var magixVirtualCar: MagixVirtualCar? = null
     var magixServer: ApplicationEngine? = null
+    var xodusStorageJob: Job? = null
+    var mongoStorageJob: Job? = null
 
     override val context = Context("demoDevice") {
         plugin(DeviceManager)
     }
 
-    private val deviceManager = context.fetch(DeviceManager)
+    private val deviceManager = context.fetch(DeviceManager, Meta {
+        "xodusConfig" put {
+            "entityStorePath" put VirtualCarControllerConfig.deviceEntityStorePath.toString()
+        }
+    })
 
     fun init() {
         context.launch {
             virtualCar = deviceManager.install("virtual-car", VirtualCar)
-            //starting magix event loop
+
-            magixServer = startMagixServer(enableRawRSocket = true, enableZmq = true)
+            //starting magix event loop and connect it to entity store
+            magixServer = startMagixServer(enableRawRSocket = true, enableZmq = true) { flow ->
+                storeInXodus( flow, Meta {
+                    "xodusConfig" put {
+                        "entityStorePath" put VirtualCarControllerConfig.magixEntityStorePath.toString()
+                    }
+                })
+            }
             magixVirtualCar = deviceManager.install("magix-virtual-car", MagixVirtualCar)
+            //connect to device entity store
+            xodusStorageJob = deviceManager.storeMessagesInXodus()
+            //Create mongo client and connect to MongoDB
+            mongoStorageJob = deviceManager.connectMongo(MongoClientFactory)
             //Launch device client and connect it to the server
             val deviceEndpoint = MagixEndpoint.rSocketWithTcp("localhost", DeviceMessage.serializer())
             deviceManager.connectToMagix(deviceEndpoint)

motors/build.gradle.kts

@@ -19,6 +19,7 @@ kscience{
 }
 
 val ktorVersion: String by rootProject.extra
+val dataforgeVersion: String by extra
 
 dependencies {
     implementation(project(":controls-tcp"))

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

@@ -16,7 +16,7 @@ import ru.mipt.npm.controls.controllers.installing
 import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.maxPosition
 import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.minPosition
 import ru.mipt.npm.devices.pimotionmaster.PiMotionMasterDevice.Axis.Companion.position
-import space.kscience.dataforge.context.Global
+import space.kscience.dataforge.context.Context
 import space.kscience.dataforge.context.fetch
 import tornadofx.*
 
@@ -24,7 +24,7 @@ class PiMotionMasterApp : App(PiMotionMasterView::class)
 
 class PiMotionMasterController : Controller() {
     //initialize context
-    val context = Global.buildContext("piMotionMaster"){
+    val context = Context("piMotionMaster"){
         plugin(DeviceManager)
     }
 

settings.gradle.kts

@@ -50,5 +50,9 @@ include(
     ":magix:magix-zmq",
     ":magix:magix-demo",
     ":controls-magix-client",
-    ":motors"
+    ":motors",
+    ":controls-xodus",
+    ":controls-mongo",
+    ":xodus-serialization"
 )
+include("xodus-serialization")

xodus-serialization/build.gradle.kts

@@ -0,0 +1,22 @@
+plugins {
+    id("ru.mipt.npm.gradle.jvm")
+    `maven-publish`
+}
+
+val xodusVersion = "1.3.232"
+
+//TODO to be moved to DataForge
+
+kscience {
+    useSerialization {
+        json()
+    }
+}
+
+dependencies {
+    implementation(projects.magix.magixApi)
+    implementation(projects.controlsCore)
+    implementation("org.jetbrains.xodus:xodus-entity-store:$xodusVersion")
+    implementation("org.jetbrains.xodus:xodus-environment:$xodusVersion")
+    implementation("org.jetbrains.xodus:xodus-vfs:$xodusVersion")
+}

xodus-serialization/src/main/kotlin/ru/mipt/npm/xodus/serialization/json/decoder.kt

@@ -0,0 +1,61 @@
+package ru.mipt.npm.xodus.serialization.json
+
+import jetbrains.exodus.entitystore.Entity
+import jetbrains.exodus.entitystore.EntityId
+import jetbrains.exodus.entitystore.PersistentEntityStore
+import jetbrains.exodus.entitystore.StoreTransaction
+import kotlinx.serialization.DeserializationStrategy
+import kotlinx.serialization.json.*
+import kotlinx.serialization.serializer
+
+internal fun StoreTransaction.decodeFromEntity(entity: Entity): JsonElement = buildJsonObject {
+    entity.propertyNames.forEach { property ->
+        entity.getProperty(property).let { value ->
+            when (value) {
+                is Number -> put(property, value)
+                is Boolean -> put(property, value)
+                is String -> put(property, value)
+                else -> throw IllegalStateException("Unsupported type for primitive field")
+            }
+        }
+    }
+
+    entity.linkNames.forEach { link ->
+        entity.getLinks(link).let { entities ->
+            when (entities.size()) {
+                1L -> entities.first?.let { put(link, decodeFromEntity(it)) }
+                else -> {
+                    putJsonArray(link) {
+                        entities.forEach {
+                            add(decodeFromEntity(it))
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+public fun <T> StoreTransaction.decodeFromEntity(entity: Entity, deserializer: DeserializationStrategy<T>): T {
+    val jsonElement = decodeFromEntity(entity)
+    return Json.decodeFromJsonElement(deserializer, jsonElement)
+}
+
+public inline fun <reified T> StoreTransaction.decodeFromEntity(entity: Entity): T = decodeFromEntity(entity, serializer())
+
+// First entity with entityType will be decoded
+public fun <T> PersistentEntityStore.decodeFromEntity(entityType: String, deserializer: DeserializationStrategy<T>): T? {
+    return computeInTransaction { txn ->
+        txn.getAll(entityType).first?.let { txn.decodeFromEntity(it, deserializer) }
+    }
+}
+
+public inline fun <reified T> PersistentEntityStore.decodeFromEntity(entityType: String): T? = decodeFromEntity(entityType, serializer())
+
+public fun <T> PersistentEntityStore.decodeFromEntity(entityId: EntityId, deserializer: DeserializationStrategy<T>): T? {
+    return computeInTransaction { txn ->
+        txn.decodeFromEntity(txn.getEntity(entityId), deserializer)
+    }
+}
+
+public inline fun <reified T> PersistentEntityStore.decodeFromEntity(entityId: EntityId): T? = decodeFromEntity(entityId, serializer())

xodus-serialization/src/main/kotlin/ru/mipt/npm/xodus/serialization/json/encoder.kt

@@ -0,0 +1,71 @@
+package ru.mipt.npm.xodus.serialization.json
+
+import jetbrains.exodus.entitystore.Entity
+import jetbrains.exodus.entitystore.EntityId
+import jetbrains.exodus.entitystore.PersistentEntityStore
+import jetbrains.exodus.entitystore.StoreTransaction
+import kotlinx.serialization.SerializationStrategy
+import kotlinx.serialization.json.*
+import kotlinx.serialization.serializer
+
+internal fun StoreTransaction.encodeToEntity(jsonElement: JsonElement, entity: Entity) {
+    when (jsonElement) {
+        is JsonPrimitive -> throw IllegalStateException("Can't serialize primitive value to entity")
+        is JsonArray -> throw IllegalStateException("Can't serialize array value to entity")
+        is JsonObject -> {
+            jsonElement.forEach { entry ->
+                entry.value.let { value ->
+                    when(value) {
+                        // не сможем десериализовать, если JsonNull (надо ли обрабатывать???) (можно сохранить в отдельный список ключи null-ов)
+                        is JsonPrimitive -> {
+                            if (value.isString) {
+                                entity.setProperty(entry.key, value.content)
+                            } else {
+                                (value.longOrNull ?: value.doubleOrNull ?: value.booleanOrNull)?.let {
+                                    entity.setProperty(
+                                        entry.key,
+                                        it
+                                    )
+                                }
+                            }
+                        }
+
+                        // считаем, что все элементы массива - JsonObject, иначе не можем напрямую сериализовать (надо придывать костыли???)
+                        // не сможем десериализовать, если массив пустой (надо ли обрабатывать???) (можно сохранять в отдельный список ключи пустых массивов)
+                        is JsonArray -> {
+                            value.forEach { element ->
+                                val childEntity = newEntity("${entity.type}.${entry.key}")
+                                encodeToEntity(element, childEntity)
+                                entity.addLink(entry.key, childEntity)
+                            }
+                        }
+
+                        is JsonObject -> {
+                            val childEntity = newEntity("${entity.type}.${entry.key}")
+                            encodeToEntity(value, childEntity)
+                            entity.setLink(entry.key, childEntity)
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+public fun <T> StoreTransaction.encodeToEntity(serializer: SerializationStrategy<T>, value: T, entityType: String): Entity {
+    val entity: Entity = newEntity(entityType)
+    encodeToEntity(Json.encodeToJsonElement(serializer, value), entity)
+    return entity
+}
+
+public inline fun <reified T> StoreTransaction.encodeToEntity(value: T, entityType: String): Entity =
+    encodeToEntity(serializer(), value, entityType)
+
+public fun <T> PersistentEntityStore.encodeToEntity(serializer: SerializationStrategy<T>, value: T, entityType: String): EntityId {
+    return computeInTransaction { txn ->
+        txn.encodeToEntity(serializer, value, entityType).id
+    }
+}
+
+public inline fun <reified T> PersistentEntityStore.encodeToEntity(value: T, entityType: String): EntityId =
+    encodeToEntity(serializer(), value, entityType)

xodus-serialization/src/main/kotlin/ru/mipt/npm/xodus/serialization/json/main.kt

@@ -0,0 +1,38 @@
+package ru.mipt.npm.xodus.serialization.json
+
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import kotlinx.datetime.Instant
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.JsonPrimitive
+import ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.magix.api.MagixMessage
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import java.nio.file.Paths
+
+internal fun main() {
+    val expectedMessage = MagixMessage(
+        "dataforge",
+        "dataforge",
+        PropertyChangedMessage(
+            "acceleration",
+            Meta {
+                "x" put 3.0
+                "y" put 9.0
+            },
+            Name.parse("virtual-car"),
+            Name.parse("magix-virtual-car"),
+            time = Instant.fromEpochMilliseconds(1337)
+        ),
+        "magix-virtual-car"
+    )
+
+    val entityStore = PersistentEntityStores.newInstance(Paths.get(".xodus_serialization").toString())
+    entityStore.executeInTransaction { txn ->
+        txn.encodeToEntity(expectedMessage, "MagixMessage")
+    }
+
+    entityStore.executeInTransaction { txn ->
+        txn.getAll("MagixMessage").first?.let { println(txn.decodeFromEntity<MagixMessage<PropertyChangedMessage>>(it) == expectedMessage) }
+    }
+}

xodus-serialization/src/test/kotlin/ru/mipt/npm/xodus/serialization/json/EncoderDecoderTests.kt

@@ -0,0 +1,105 @@
+package ru.mipt.npm.xodus.serialization.json
+
+import jetbrains.exodus.entitystore.PersistentEntityStores
+import kotlinx.datetime.Instant
+import kotlinx.serialization.json.*
+import org.junit.jupiter.api.AfterAll
+import org.junit.jupiter.api.AfterEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.assertThrows
+import ru.mipt.npm.controls.api.PropertyChangedMessage
+import ru.mipt.npm.magix.api.MagixMessage
+import space.kscience.dataforge.meta.Meta
+import space.kscience.dataforge.names.Name
+import java.nio.file.Paths
+import kotlin.test.assertEquals
+
+internal class EncoderDecoderTests {
+    companion object {
+        private val storePath = Paths.get(".xodus_serialization_test")
+        private val entityStore = PersistentEntityStores.newInstance(storePath.toString())
+
+        @AfterAll
+        @JvmStatic
+        fun deleteDatabase() {
+            entityStore.close()
+            storePath.toFile().deleteRecursively()
+        }
+
+        @AfterEach
+        fun clearDatabase() {
+            entityStore.clear()
+        }
+
+        fun checkEncodingDecodingCorrectness(json: JsonObject) {
+            val id = entityStore.encodeToEntity(json, "JsonObject")
+            assertEquals(json, entityStore.decodeFromEntity(id))
+        }
+
+        fun checkEncodingDecodingCorrectness(jsons: List<JsonObject>) = jsons.forEach {
+            checkEncodingDecodingCorrectness(it)
+        }
+
+    }
+
+    @Test
+    fun `encoder throw Illegal exception if input is not a JsonObject`() {
+        assertThrows<IllegalStateException> {
+            val json = JsonPrimitive(0)
+            entityStore.encodeToEntity(json, "JsonPrimitive")
+        }
+
+        assertThrows<IllegalStateException> {
+            val json = buildJsonArray {}
+            entityStore.encodeToEntity(json, "JsonArray")
+        }
+    }
+
+    @Test
+    fun `correctly work with underlying JsonPrimitive`() {
+        val jsonLong = buildJsonObject { put("value", 0) }
+        val jsonDouble = buildJsonObject { put("value", 0.0) }
+        val jsonBoolean = buildJsonObject { put("value", true) }
+        val jsonString = buildJsonObject { put("value", "") }
+
+        checkEncodingDecodingCorrectness(listOf(jsonLong, jsonDouble, jsonBoolean, jsonString))
+    }
+
+    @Test
+    fun `correctly work with underlying JsonArray`() {
+        checkEncodingDecodingCorrectness(buildJsonObject { putJsonArray("value") {
+            add(buildJsonObject { put("value", 0) })
+            add(buildJsonObject { put("value", 0.0) })
+        } })
+    }
+
+    @Test
+    fun `correctly work with underlying JsonObject`() {
+        checkEncodingDecodingCorrectness(buildJsonObject {
+            putJsonObject("value", { put("value", true) })
+        })
+    }
+
+    @Test
+    fun testMagixMessagePropertyChangedMessage() {
+        val expectedMessage = MagixMessage(
+            "dataforge",
+            "dataforge",
+            PropertyChangedMessage(
+                "acceleration",
+                Meta {
+                    "x" put 3.0
+                    "y" put 9.0
+                },
+                Name.parse("virtual-car"),
+                Name.parse("magix-virtual-car"),
+                time = Instant.fromEpochMilliseconds(1337)
+            ),
+            "magix-virtual-car",
+            user = buildJsonObject { put("name", "SCADA") }
+        )
+
+        val id = entityStore.encodeToEntity(expectedMessage, "MagixMessage")
+        assertEquals(expectedMessage, entityStore.decodeFromEntity<MagixMessage<PropertyChangedMessage>>(id))
+    }
+}