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Merge MetaConverter and MetaSpec

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This commit is contained in:
Alexander Nozik 2023-12-31 12:54:38 +03:00
parent 282b43a05a
commit fd1d98aa87
16 changed files with 209 additions and 229 deletions
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1
CHANGELOG.md
View File

@ -8,6 +8,7 @@
- Add Meta and MutableMeta delegates for convertable and serializeable
### Changed
- Descriptor `children` renamed to `nodes`
### Deprecated
- `node(key,converter)` in favor of `serializable` delegate

12
dataforge-context/src/commonMain/kotlin/space/kscience/dataforge/properties/MetaProperty.kt
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@ -1,11 +1,7 @@
package space.kscience.dataforge.properties
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.meta.ObservableMutableMeta
import space.kscience.dataforge.meta.transformations.MetaConverter
import space.kscience.dataforge.meta.transformations.nullableMetaToObject
import space.kscience.dataforge.meta.transformations.nullableObjectToMeta
import space.kscience.dataforge.meta.*
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.names.Name
import space.kscience.dataforge.names.startsWith
@ -18,14 +14,14 @@ public class MetaProperty<T : Any>(
) : Property<T?> {
override var value: T?
get() = converter.nullableMetaToObject(meta[name])
get() = converter.readNullable(meta[name])
set(value) {
meta[name] = converter.nullableObjectToMeta(value) ?: Meta.EMPTY
meta[name] = converter.convertNullable(value) ?: Meta.EMPTY
}
override fun onChange(owner: Any?, callback: (T?) -> Unit) {
meta.onChange(owner) { name ->
if (name.startsWith(this@MetaProperty.name)) callback(converter.nullableMetaToObject(this[name]))
if (name.startsWith(this@MetaProperty.name)) callback(converter.readNullable(this[name]))
}
}

6
dataforge-context/src/jvmTest/kotlin/space/kscience/dataforge/descriptors/TestAutoDescriptors.kt
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@ -3,9 +3,11 @@ package space.kscience.dataforge.descriptors
import kotlinx.serialization.encodeToString
import kotlinx.serialization.json.Json
import org.junit.jupiter.api.Test
import space.kscience.dataforge.meta.*
import space.kscience.dataforge.meta.Scheme
import space.kscience.dataforge.meta.SchemeSpec
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.transformations.MetaConverter
import space.kscience.dataforge.meta.int
import space.kscience.dataforge.meta.string
private class TestScheme: Scheme(){

2
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/JsonMeta.kt
View File

@ -31,7 +31,7 @@ private fun Meta.toJsonWithIndex(descriptor: MetaDescriptor?, index: String?): J
val pairs: MutableList<Pair<String, JsonElement>> = items.entries.groupBy {
it.key.body
}.mapTo(ArrayList()) { (body, list) ->
val childDescriptor = descriptor?.children?.get(body)
val childDescriptor = descriptor?.nodes?.get(body)
if (list.size == 1) {
val (token, element) = list.first()
//do not add an empty element

74
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/transformations/MetaConverter.kt → dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/MetaConverter.kt
View File

@ -1,19 +1,19 @@
package space.kscience.dataforge.meta.transformations
package space.kscience.dataforge.meta
import kotlinx.serialization.KSerializer
import kotlinx.serialization.json.Json
import kotlinx.serialization.json.encodeToJsonElement
import kotlinx.serialization.serializer
import space.kscience.dataforge.meta.*
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.misc.DFExperimental
import kotlin.reflect.KType
import kotlin.reflect.typeOf
/**
* A converter of generic object to and from [Meta]
*/
public interface MetaConverter<T> {
public interface MetaConverter<T>: MetaSpec<T> {
/**
* Runtime type of [T]
@ -23,32 +23,32 @@ public interface MetaConverter<T> {
/**
* A descriptor for resulting meta
*/
public val descriptor: MetaDescriptor get() = MetaDescriptor.EMPTY
override val descriptor: MetaDescriptor get() = MetaDescriptor.EMPTY
/**
* Attempt conversion of [meta] to an object or return null if conversion failed
* Attempt conversion of [source] to an object or return null if conversion failed
*/
public fun metaToObjectOrNull(meta: Meta): T?
override fun readOrNull(source: Meta): T?
public fun metaToObject(meta: Meta): T =
metaToObjectOrNull(meta) ?: error("Meta $meta could not be interpreted by $this")
override fun read(source: Meta): T =
readOrNull(source) ?: error("Meta $source could not be interpreted by $this")
public fun objectToMeta(obj: T): Meta
public fun convert(obj: T): Meta
public companion object {
public val meta: MetaConverter<Meta> = object : MetaConverter<Meta> {
override val type: KType = typeOf<Meta>()
override fun metaToObjectOrNull(meta: Meta): Meta = meta
override fun objectToMeta(obj: Meta): Meta = obj
override fun readOrNull(source: Meta): Meta = source
override fun convert(obj: Meta): Meta = obj
}
public val value: MetaConverter<Value> = object : MetaConverter<Value> {
override val type: KType = typeOf<Value>()
override fun metaToObjectOrNull(meta: Meta): Value? = meta.value
override fun objectToMeta(obj: Value): Meta = Meta(obj)
override fun readOrNull(source: Meta): Value? = source.value
override fun convert(obj: Value): Meta = Meta(obj)
}
public val string: MetaConverter<String> = object : MetaConverter<String> {
@ -59,8 +59,8 @@ public interface MetaConverter<T> {
}
override fun metaToObjectOrNull(meta: Meta): String? = meta.string
override fun objectToMeta(obj: String): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): String? = source.string
override fun convert(obj: String): Meta = Meta(obj.asValue())
}
public val boolean: MetaConverter<Boolean> = object : MetaConverter<Boolean> {
@ -70,8 +70,8 @@ public interface MetaConverter<T> {
valueType(ValueType.BOOLEAN)
}
override fun metaToObjectOrNull(meta: Meta): Boolean? = meta.boolean
override fun objectToMeta(obj: Boolean): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Boolean? = source.boolean
override fun convert(obj: Boolean): Meta = Meta(obj.asValue())
}
public val number: MetaConverter<Number> = object : MetaConverter<Number> {
@ -81,8 +81,8 @@ public interface MetaConverter<T> {
valueType(ValueType.NUMBER)
}
override fun metaToObjectOrNull(meta: Meta): Number? = meta.number
override fun objectToMeta(obj: Number): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Number? = source.number
override fun convert(obj: Number): Meta = Meta(obj.asValue())
}
public val double: MetaConverter<Double> = object : MetaConverter<Double> {
@ -92,8 +92,8 @@ public interface MetaConverter<T> {
valueType(ValueType.NUMBER)
}
override fun metaToObjectOrNull(meta: Meta): Double? = meta.double
override fun objectToMeta(obj: Double): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Double? = source.double
override fun convert(obj: Double): Meta = Meta(obj.asValue())
}
public val float: MetaConverter<Float> = object : MetaConverter<Float> {
@ -103,8 +103,8 @@ public interface MetaConverter<T> {
valueType(ValueType.NUMBER)
}
override fun metaToObjectOrNull(meta: Meta): Float? = meta.float
override fun objectToMeta(obj: Float): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Float? = source.float
override fun convert(obj: Float): Meta = Meta(obj.asValue())
}
public val int: MetaConverter<Int> = object : MetaConverter<Int> {
@ -114,8 +114,8 @@ public interface MetaConverter<T> {
valueType(ValueType.NUMBER)
}
override fun metaToObjectOrNull(meta: Meta): Int? = meta.int
override fun objectToMeta(obj: Int): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Int? = source.int
override fun convert(obj: Int): Meta = Meta(obj.asValue())
}
public val long: MetaConverter<Long> = object : MetaConverter<Long> {
@ -125,8 +125,8 @@ public interface MetaConverter<T> {
valueType(ValueType.NUMBER)
}
override fun metaToObjectOrNull(meta: Meta): Long? = meta.long
override fun objectToMeta(obj: Long): Meta = Meta(obj.asValue())
override fun readOrNull(source: Meta): Long? = source.long
override fun convert(obj: Long): Meta = Meta(obj.asValue())
}
public inline fun <reified E : Enum<E>> enum(): MetaConverter<E> = object : MetaConverter<E> {
@ -138,9 +138,9 @@ public interface MetaConverter<T> {
}
@Suppress("USELESS_CAST")
override fun metaToObjectOrNull(meta: Meta): E = meta.enum<E>() as? E ?: error("The Item is not a Enum")
override fun readOrNull(source: Meta): E = source.enum<E>() as? E ?: error("The Item is not a Enum")
override fun objectToMeta(obj: E): Meta = Meta(obj.asValue())
override fun convert(obj: E): Meta = Meta(obj.asValue())
}
public fun <T> valueList(
@ -153,9 +153,9 @@ public interface MetaConverter<T> {
valueType(ValueType.LIST)
}
override fun metaToObjectOrNull(meta: Meta): List<T>? = meta.value?.list?.map(reader)
override fun readOrNull(source: Meta): List<T>? = source.value?.list?.map(reader)
override fun objectToMeta(obj: List<T>): Meta = Meta(obj.map(writer).asValue())
override fun convert(obj: List<T>): Meta = Meta(obj.map(writer).asValue())
}
/**
@ -168,12 +168,12 @@ public interface MetaConverter<T> {
override val type: KType = typeOf<T>()
private val serializer: KSerializer<T> = serializer()
override fun metaToObjectOrNull(meta: Meta): T? {
val json = meta.toJson(descriptor)
override fun readOrNull(source: Meta): T? {
val json = source.toJson(descriptor)
return Json.decodeFromJsonElement(serializer, json)
}
override fun objectToMeta(obj: T): Meta {
override fun convert(obj: T): Meta {
val json = Json.encodeToJsonElement(obj)
return json.toMeta(descriptor)
}
@ -183,7 +183,7 @@ public interface MetaConverter<T> {
}
}
public fun <T : Any> MetaConverter<T>.nullableMetaToObject(item: Meta?): T? = item?.let { metaToObject(it) }
public fun <T : Any> MetaConverter<T>.nullableObjectToMeta(obj: T?): Meta? = obj?.let { objectToMeta(it) }
public fun <T : Any> MetaConverter<T>.readNullable(item: Meta?): T? = item?.let { read(it) }
public fun <T : Any> MetaConverter<T>.convertNullable(obj: T?): Meta? = obj?.let { convert(it) }
public fun <T> MetaConverter<T>.valueToObject(value: Value): T? = metaToObject(Meta(value))
public fun <T> MetaConverter<T>.readValue(value: Value): T? = read(Meta(value))

5
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/MetaDelegate.kt
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@ -1,7 +1,6 @@
package space.kscience.dataforge.meta
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.transformations.MetaConverter
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.names.Name
import space.kscience.dataforge.names.asName
@ -20,7 +19,7 @@ public fun <T> MetaProvider.convertable(
converter: MetaConverter<T>,
key: Name? = null,
): ReadOnlyProperty<Any?, T?> = ReadOnlyProperty { _, property ->
get(key ?: property.name.asName())?.let { converter.metaToObject(it) }
get(key ?: property.name.asName())?.let { converter.read(it) }
}
/**
@ -46,7 +45,7 @@ public fun <T> Meta.listOfConvertable(
key: Name? = null,
): ReadOnlyProperty<Any?, List<T>> = ReadOnlyProperty{_, property ->
val name = key ?: property.name.asName()
getIndexed(name).values.map { converter.metaToObject(it) }
getIndexed(name).values.map { converter.read(it) }
}
@DFExperimental

18
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/MetaSpec.kt Normal file
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@ -0,0 +1,18 @@
package space.kscience.dataforge.meta
import space.kscience.dataforge.meta.descriptors.Described
public interface MetaSpec<out T> : Described {
/**
* Read the source meta into an object and return null if Meta could not be interpreted as a target type
*/
public fun readOrNull(source: Meta): T?
/**
* Read generic read-only meta with this [MetaSpec] producing instance of the desired type.
* Throws an error if conversion could not be done.
*/
public fun read(source: Meta): T = readOrNull(source) ?: error("Meta $source could not be interpreted by $this")
}

3
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/transformations/MetaTransformation.kt → dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/MetaTransformation.kt
View File

@ -1,6 +1,5 @@
package space.kscience.dataforge.meta.transformations
package space.kscience.dataforge.meta
import space.kscience.dataforge.meta.*
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.names.Name
import kotlin.jvm.JvmInline

9
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/MutableMetaDelegate.kt
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@ -1,7 +1,6 @@
package space.kscience.dataforge.meta
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.transformations.MetaConverter
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.names.Name
import space.kscience.dataforge.names.asName
@ -33,12 +32,12 @@ public fun <T> MutableMetaProvider.convertable(
object : ReadWriteProperty<Any?, T?> {
override fun getValue(thisRef: Any?, property: KProperty<*>): T? {
val name = key ?: property.name.asName()
return get(name)?.let { converter.metaToObject(it) }
return get(name)?.let { converter.read(it) }
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: T?) {
val name = key ?: property.name.asName()
set(name, value?.let { converter.objectToMeta(it) })
set(name, value?.let { converter.convert(it) })
}
}
@ -66,12 +65,12 @@ public fun <T> MutableMeta.listOfConvertable(
): ReadWriteProperty<Any?, List<T>> = object : ReadWriteProperty<Any?, List<T>> {
override fun getValue(thisRef: Any?, property: KProperty<*>): List<T> {
val name = key ?: property.name.asName()
return getIndexed(name).values.map { converter.metaToObject(it) }
return getIndexed(name).values.map { converter.read(it) }
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: List<T>) {
val name = key ?: property.name.asName()
setIndexed(name, value.map { converter.objectToMeta(it) })
setIndexed(name, value.map { converter.convert(it) })
}
}

119
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Scheme.kt
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@ -7,9 +7,11 @@ import space.kscience.dataforge.meta.descriptors.validate
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.misc.ThreadSafe
import space.kscience.dataforge.names.*
import kotlin.properties.ReadWriteProperty
import kotlin.reflect.KProperty
/**
* A base for delegate-based or descriptor-based scheme. [Scheme] has an empty constructor to simplify usage from [Specification].
* A base for delegate-based or descriptor-based scheme. [Scheme] has an empty constructor to simplify usage from [MetaSpec].
* Default item provider and [MetaDescriptor] are optional
*/
public open class Scheme : Described, MetaRepr, MutableMetaProvider, Configurable {
@ -165,23 +167,124 @@ public inline fun <T : Scheme> T.copy(spec: SchemeSpec<T>, block: T.() -> Unit =
*/
public open class SchemeSpec<out T : Scheme>(
private val builder: () -> T,
) : Specification<T> {
) : MetaSpec<T> {
override val descriptor: MetaDescriptor? get() = null
override fun read(source: Meta): T = builder().also {
override fun readOrNull(source: Meta): T = builder().also {
it.initialize(MutableMeta(), source, descriptor)
}
override fun write(target: MutableMeta): T = empty().also {
public fun write(target: MutableMeta): T = empty().also {
it.initialize(target, Meta.EMPTY, descriptor)
}
override fun empty(): T = builder().also {
/**
* Generate an empty object
*/
public fun empty(): T = builder().also {
it.initialize(MutableMeta(), Meta.EMPTY, descriptor)
}
@Suppress("OVERRIDE_BY_INLINE")
final override inline operator fun invoke(action: T.() -> Unit): T = empty().apply(action)
/**
* A convenience method to use specifications in builders
*/
public inline operator fun invoke(action: T.() -> Unit): T = empty().apply(action)
}
}
/**
* Update a [MutableMeta] using given specification
*/
public fun <T : Scheme> MutableMeta.updateWith(
spec: SchemeSpec<T>,
action: T.() -> Unit,
): T = spec.write(this).apply(action)
/**
* Update configuration using given specification
*/
public fun <T : Scheme> Configurable.updateWith(
spec: SchemeSpec<T>,
action: T.() -> Unit,
): T = spec.write(meta).apply(action)
/**
* A delegate that uses a [MetaSpec] to wrap a child of this provider
*/
public fun <T : Scheme> MutableMeta.scheme(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T> = object : ReadWriteProperty<Any?, T> {
override fun getValue(thisRef: Any?, property: KProperty<*>): T {
val name = key ?: property.name.asName()
return spec.write(getOrCreate(name))
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
val name = key ?: property.name.asName()
set(name, value.toMeta())
}
}
public fun <T : Scheme> Scheme.scheme(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T> = meta.scheme(spec, key)
/**
* A delegate that uses a [MetaSpec] to wrap a child of this provider.
* Returns null if meta with given name does not exist.
*/
public fun <T : Scheme> MutableMeta.schemeOrNull(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T?> = object : ReadWriteProperty<Any?, T?> {
override fun getValue(thisRef: Any?, property: KProperty<*>): T? {
val name = key ?: property.name.asName()
return if (get(name) == null) null else spec.write(getOrCreate(name))
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: T?) {
val name = key ?: property.name.asName()
if (value == null) remove(name)
else set(name, value.toMeta())
}
}
public fun <T : Scheme> Scheme.schemeOrNull(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T?> = meta.schemeOrNull(spec, key)
/**
* A delegate that uses a [MetaSpec] to wrap a list of child providers.
* If children are mutable, the changes in list elements are reflected on them.
* The list is a snapshot of children state, so change in structure is not reflected on its composition.
*/
@DFExperimental
public fun <T : Scheme> MutableMeta.listOfScheme(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, List<T>> = object : ReadWriteProperty<Any?, List<T>> {
override fun getValue(thisRef: Any?, property: KProperty<*>): List<T> {
val name = key ?: property.name.asName()
return getIndexed(name).values.map { spec.write(it as MutableMeta) }
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: List<T>) {
val name = key ?: property.name.asName()
setIndexed(name, value.map { it.toMeta() })
}
}
@DFExperimental
public fun <T : Scheme> Scheme.listOfScheme(
spec: SchemeSpec<T>,
key: Name? = null,
): ReadWriteProperty<Any?, List<T>> = meta.listOfScheme(spec, key)

137
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/Specification.kt
View File

@ -1,137 +0,0 @@
package space.kscience.dataforge.meta
import space.kscience.dataforge.meta.descriptors.Described
import space.kscience.dataforge.misc.DFExperimental
import space.kscience.dataforge.names.Name
import space.kscience.dataforge.names.asName
import kotlin.properties.ReadWriteProperty
import kotlin.reflect.KProperty
public interface ReadOnlySpecification<out T : Any> : Described {
/**
* Read generic read-only meta with this [Specification] producing instance of desired type.
* The source is not mutated even if it is in theory mutable
*/
public fun read(source: Meta): T
/**
* Generate an empty object
*/
public fun empty(): T
/**
* A convenience method to use specifications in builders
*/
public operator fun invoke(action: T.() -> Unit): T = empty().apply(action)
}
/**
* Allows to apply custom configuration in a type safe way to simple untyped configuration.
* By convention [Scheme] companion should inherit this class
*
*/
public interface Specification<out T : Any> : ReadOnlySpecification<T> {
/**
* Wrap [MutableMeta], using it as inner storage (changes to [Specification] are reflected on [MutableMeta]
*/
public fun write(target: MutableMeta): T
}
/**
* Update a [MutableMeta] using given specification
*/
public fun <T : Any> MutableMeta.updateWith(
spec: Specification<T>,
action: T.() -> Unit,
): T = spec.write(this).apply(action)
/**
* Update configuration using given specification
*/
public fun <T : Any> Configurable.updateWith(
spec: Specification<T>,
action: T.() -> Unit,
): T = spec.write(meta).apply(action)
//
//public fun <M : MutableTypedMeta<M>> MutableMeta.withSpec(spec: Specification<M>): M? =
// spec.write(it)
/**
* A delegate that uses a [Specification] to wrap a child of this provider
*/
public fun <T : Scheme> MutableMeta.spec(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T> = object : ReadWriteProperty<Any?, T> {
override fun getValue(thisRef: Any?, property: KProperty<*>): T {
val name = key ?: property.name.asName()
return spec.write(getOrCreate(name))
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: T) {
val name = key ?: property.name.asName()
set(name, value.toMeta())
}
}
public fun <T : Scheme> Scheme.spec(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T> = meta.spec(spec, key)
/**
* A delegate that uses a [Specification] to wrap a child of this provider.
* Returns null if meta with given name does not exist.
*/
public fun <T : Scheme> MutableMeta.specOrNull(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T?> = object : ReadWriteProperty<Any?, T?> {
override fun getValue(thisRef: Any?, property: KProperty<*>): T? {
val name = key ?: property.name.asName()
return if (get(name) == null) null else spec.write(getOrCreate(name))
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: T?) {
val name = key ?: property.name.asName()
if (value == null) remove(name)
else set(name, value.toMeta())
}
}
public fun <T : Scheme> Scheme.specOrNull(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, T?> = meta.specOrNull(spec, key)
/**
* A delegate that uses a [Specification] to wrap a list of child providers.
* If children are mutable, the changes in list elements are reflected on them.
* The list is a snapshot of children state, so change in structure is not reflected on its composition.
*/
@DFExperimental
public fun <T : Scheme> MutableMeta.listOfSpec(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, List<T>> = object : ReadWriteProperty<Any?, List<T>> {
override fun getValue(thisRef: Any?, property: KProperty<*>): List<T> {
val name = key ?: property.name.asName()
return getIndexed(name).values.map { spec.write(it as MutableMeta) }
}
override fun setValue(thisRef: Any?, property: KProperty<*>, value: List<T>) {
val name = key ?: property.name.asName()
setIndexed(name, value.map { it.toMeta() })
}
}
@DFExperimental
public fun <T : Scheme> Scheme.listOfSpec(
spec: Specification<T>,
key: Name? = null,
): ReadWriteProperty<Any?, List<T>> = meta.listOfSpec(spec, key)

15
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/descriptors/MetaDescriptor.kt
View File

@ -27,7 +27,7 @@ public enum class ValueRestriction {
/**
* The descriptor for a meta
* @param description description text
* @param children child descriptors for this node
* @param nodes child descriptors for this node
* @param multiple True if same name siblings with this name are allowed
* @param valueRestriction The requirements for node content
* @param valueTypes list of allowed types for [Meta.value], null if all values are allowed.
@ -39,7 +39,7 @@ public enum class ValueRestriction {
@Serializable
public data class MetaDescriptor(
public val description: String? = null,
public val children: Map<String, MetaDescriptor> = emptyMap(),
public val nodes: Map<String, MetaDescriptor> = emptyMap(),
public val multiple: Boolean = false,
public val valueRestriction: ValueRestriction = ValueRestriction.NONE,
public val valueTypes: List<ValueType>? = null,
@ -47,6 +47,9 @@ public data class MetaDescriptor(
public val defaultValue: Value? = null,
public val attributes: Meta = Meta.EMPTY,
) {
@Deprecated("Replace by nodes", ReplaceWith("nodes"))
public val children: Map<String, MetaDescriptor> get() = nodes
/**
* A node constructed of default values for this descriptor and its children
*/
@ -55,7 +58,7 @@ public data class MetaDescriptor(
defaultValue?.let { defaultValue ->
this.value = defaultValue
}
children.forEach { (key, descriptor) ->
nodes.forEach { (key, descriptor) ->
set(key, descriptor.defaultNode)
}
}
@ -67,13 +70,13 @@ public data class MetaDescriptor(
}
}
public val MetaDescriptor.required: Boolean get() = valueRestriction == ValueRestriction.REQUIRED || children.values.any { required }
public val MetaDescriptor.required: Boolean get() = valueRestriction == ValueRestriction.REQUIRED || nodes.values.any { required }
public val MetaDescriptor.allowedValues: List<Value>? get() = attributes[MetaDescriptor.ALLOWED_VALUES_KEY]?.value?.list
public operator fun MetaDescriptor.get(name: Name): MetaDescriptor? = when (name.length) {
0 -> this
1 -> children[name.firstOrNull()!!.toString()]
1 -> nodes[name.firstOrNull()!!.toString()]
else -> get(name.firstOrNull()!!.asName())?.get(name.cutFirst())
}
@ -95,7 +98,7 @@ public fun MetaDescriptor.validate(item: Meta?): Boolean {
if (item == null) return !required
if (!validate(item.value)) return false
children.forEach { (key, childDescriptor) ->
nodes.forEach { (key, childDescriptor) ->
if (!childDescriptor.validate(item[key])) return false
}
return true

6
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/descriptors/MetaDescriptorBuilder.kt
View File

@ -80,7 +80,7 @@ public class MetaDescriptorBuilder @PublishedApi internal constructor() {
public fun from(descriptor: MetaDescriptor) {
description = descriptor.description
children.putAll(descriptor.children.mapValues { it.value.toBuilder() })
children.putAll(descriptor.nodes.mapValues { it.value.toBuilder() })
multiple = descriptor.multiple
valueRestriction = descriptor.valueRestriction
valueTypes = descriptor.valueTypes
@ -92,7 +92,7 @@ public class MetaDescriptorBuilder @PublishedApi internal constructor() {
@PublishedApi
internal fun build(): MetaDescriptor = MetaDescriptor(
description = description,
children = children.mapValues { it.value.build() },
nodes = children.mapValues { it.value.build() },
multiple = multiple,
valueRestriction = valueRestriction,
valueTypes = valueTypes,
@ -143,7 +143,7 @@ public fun MetaDescriptorBuilder.required() {
private fun MetaDescriptor.toBuilder(): MetaDescriptorBuilder = MetaDescriptorBuilder().apply {
description = this@toBuilder.description
children = this@toBuilder.children.mapValuesTo(LinkedHashMap()) { it.value.toBuilder() }
children = this@toBuilder.nodes.mapValuesTo(LinkedHashMap()) { it.value.toBuilder() }
multiple = this@toBuilder.multiple
valueRestriction = this@toBuilder.valueRestriction
valueTypes = this@toBuilder.valueTypes

2
dataforge-meta/src/commonTest/kotlin/space/kscience/dataforge/meta/MetaDelegateTest.kt
View File

@ -20,7 +20,7 @@ class MetaDelegateTest {
var myValue by string()
var safeValue by double(2.2)
var enumValue by enum(TestEnum.YES)
var inner by spec(InnerScheme)
var inner by scheme(InnerScheme)
companion object : SchemeSpec<TestScheme>(::TestScheme)
}

25
dataforge-workspace/src/commonMain/kotlin/space/kscience/dataforge/workspace/Task.kt
View File

@ -6,7 +6,7 @@ import space.kscience.dataforge.data.DataTree
import space.kscience.dataforge.data.GoalExecutionRestriction
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.meta.MetaRepr
import space.kscience.dataforge.meta.Specification
import space.kscience.dataforge.meta.MetaSpec
import space.kscience.dataforge.meta.descriptors.Described
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.misc.DfType
@ -43,10 +43,10 @@ public interface Task<out T : Any> : Described {
}
/**
* A [Task] with [Specification] for wrapping and unwrapping task configuration
* A [Task] with [MetaSpec] for wrapping and unwrapping task configuration
*/
public interface TaskWithSpec<out T : Any, C : Any> : Task<T> {
public val spec: Specification<C>
public val spec: MetaSpec<C>
override val descriptor: MetaDescriptor? get() = spec.descriptor
public suspend fun execute(workspace: Workspace, taskName: Name, configuration: C): TaskResult<T>
@ -55,11 +55,11 @@ public interface TaskWithSpec<out T : Any, C : Any> : Task<T> {
execute(workspace, taskName, spec.read(taskMeta))
}
public suspend fun <T : Any, C : Any> TaskWithSpec<T, C>.execute(
workspace: Workspace,
taskName: Name,
block: C.() -> Unit = {},
): TaskResult<T> = execute(workspace, taskName, spec(block))
//public suspend fun <T : Any, C : Scheme> TaskWithSpec<T, C>.execute(
// workspace: Workspace,
// taskName: Name,
// block: C.() -> Unit = {},
//): TaskResult<T> = execute(workspace, taskName, spec(block))
public class TaskResultBuilder<in T : Any>(
public val workspace: Workspace,
@ -76,7 +76,6 @@ public class TaskResultBuilder<in T : Any>(
* @param descriptor of meta accepted by this task
* @param builder for resulting data set
*/
@Suppress("FunctionName")
public fun <T : Any> Task(
resultType: KType,
descriptor: MetaDescriptor? = null,
@ -98,7 +97,6 @@ public fun <T : Any> Task(
}
}
@Suppress("FunctionName")
public inline fun <reified T : Any> Task(
descriptor: MetaDescriptor? = null,
noinline builder: suspend TaskResultBuilder<T>.() -> Unit,
@ -116,10 +114,10 @@ public inline fun <reified T : Any> Task(
@Suppress("FunctionName")
public fun <T : Any, C : MetaRepr> Task(
resultType: KType,
specification: Specification<C>,
specification: MetaSpec<C>,
builder: suspend TaskResultBuilder<T>.(C) -> Unit,
): TaskWithSpec<T, C> = object : TaskWithSpec<T, C> {
override val spec: Specification<C> = specification
override val spec: MetaSpec<C> = specification
override suspend fun execute(
workspace: Workspace,
@ -135,8 +133,7 @@ public fun <T : Any, C : MetaRepr> Task(
}
}
@Suppress("FunctionName")
public inline fun <reified T : Any, C : MetaRepr> Task(
specification: Specification<C>,
specification: MetaSpec<C>,
noinline builder: suspend TaskResultBuilder<T>.(C) -> Unit,
): Task<T> = Task(typeOf<T>(), specification, builder)

4
dataforge-workspace/src/commonMain/kotlin/space/kscience/dataforge/workspace/WorkspaceBuilder.kt
View File

@ -7,8 +7,8 @@ import space.kscience.dataforge.context.Global
import space.kscience.dataforge.data.*
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.meta.MetaRepr
import space.kscience.dataforge.meta.MetaSpec
import space.kscience.dataforge.meta.MutableMeta
import space.kscience.dataforge.meta.Specification
import space.kscience.dataforge.meta.descriptors.MetaDescriptor
import space.kscience.dataforge.meta.descriptors.MetaDescriptorBuilder
import space.kscience.dataforge.misc.DFBuilder
@ -68,7 +68,7 @@ public inline fun <reified T : Any> TaskContainer.task(
}
public inline fun <reified T : Any, C : MetaRepr> TaskContainer.task(
specification: Specification<C>,
specification: MetaSpec<C>,
noinline builder: suspend TaskResultBuilder<T>.(C) -> Unit,
): PropertyDelegateProvider<Any?, ReadOnlyProperty<Any?, TaskReference<T>>> = PropertyDelegateProvider { _, property ->
val taskName = Name.parse(property.name)