Cache descriptor defaults
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@ -4,6 +4,7 @@
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### Added
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### Changed
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- **API breaking** Descriptor no has a member property `defaultValue` instead of `defaultItem()` extension. It cahces default value state on the first call. It is done because computing default on each call is too expensive.
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### Deprecated
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@ -4,7 +4,7 @@ plugins {
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allprojects {
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group = "space.kscience"
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version = "0.4.0"
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version = "0.4.1"
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}
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subprojects {
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@ -501,15 +501,11 @@ public abstract interface class space/kscience/dataforge/meta/descriptors/Descri
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public final class space/kscience/dataforge/meta/descriptors/Described$Companion {
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}
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public final class space/kscience/dataforge/meta/descriptors/DescriptorMetaKt {
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public static final fun defaultItem (Lspace/kscience/dataforge/meta/descriptors/ItemDescriptor;)Lspace/kscience/dataforge/meta/TypedMetaItem;
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public static final fun defaultMeta (Lspace/kscience/dataforge/meta/descriptors/NodeDescriptor;)Lspace/kscience/dataforge/meta/Laminate;
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}
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public abstract interface class space/kscience/dataforge/meta/descriptors/ItemDescriptor : space/kscience/dataforge/meta/MetaRepr {
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public static final field Companion Lspace/kscience/dataforge/meta/descriptors/ItemDescriptor$Companion;
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public static final field DEFAULT_INDEX_KEY Ljava/lang/String;
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public abstract fun getAttributes ()Lspace/kscience/dataforge/meta/Meta;
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public abstract fun getDefaultValue ()Lspace/kscience/dataforge/meta/TypedMetaItem;
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public abstract fun getIndexKey ()Ljava/lang/String;
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public abstract fun getInfo ()Ljava/lang/String;
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public abstract fun getMultiple ()Z
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@ -552,6 +548,7 @@ public final class space/kscience/dataforge/meta/descriptors/ItemDescriptorKt {
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public abstract interface class space/kscience/dataforge/meta/descriptors/NodeDescriptor : space/kscience/dataforge/meta/descriptors/ItemDescriptor {
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public static final field Companion Lspace/kscience/dataforge/meta/descriptors/NodeDescriptor$Companion;
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public fun defaultMeta ()Lspace/kscience/dataforge/meta/Laminate;
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public abstract fun getDefault ()Lspace/kscience/dataforge/meta/Config;
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public abstract fun getItems ()Ljava/util/Map;
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public abstract fun getNodes ()Ljava/util/Map;
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@ -570,6 +567,7 @@ public final class space/kscience/dataforge/meta/descriptors/NodeDescriptorBuild
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public synthetic fun build ()Lspace/kscience/dataforge/meta/descriptors/ItemDescriptor;
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public fun build ()Lspace/kscience/dataforge/meta/descriptors/NodeDescriptor;
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public fun getDefault ()Lspace/kscience/dataforge/meta/Config;
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public fun getDefaultValue ()Lspace/kscience/dataforge/meta/TypedMetaItem;
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public fun getItems ()Ljava/util/Map;
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public fun getNodes ()Ljava/util/Map;
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public fun getRequired ()Z
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@ -610,6 +608,7 @@ public final class space/kscience/dataforge/meta/descriptors/ValueDescriptorBuil
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public final fun default (Ljava/lang/Object;)V
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public fun getAllowedValues ()Ljava/util/List;
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public fun getDefault ()Lspace/kscience/dataforge/values/Value;
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public fun getDefaultValue ()Lspace/kscience/dataforge/meta/TypedMetaItem;
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public fun getRequired ()Z
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public fun getType ()Ljava/util/List;
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public fun isAllowedValue (Lspace/kscience/dataforge/values/Value;)Z
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@ -1,6 +1,9 @@
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package space.kscience.dataforge.meta
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import space.kscience.dataforge.meta.descriptors.*
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import space.kscience.dataforge.meta.descriptors.Described
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import space.kscience.dataforge.meta.descriptors.NodeDescriptor
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import space.kscience.dataforge.meta.descriptors.get
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import space.kscience.dataforge.meta.descriptors.validateItem
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import space.kscience.dataforge.names.Name
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import space.kscience.dataforge.names.NameToken
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import space.kscience.dataforge.names.asName
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@ -53,7 +56,7 @@ public open class Scheme() : Described, MetaRepr, ItemPropertyProvider {
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}
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private fun getDefaultItem(name: Name): MetaItem? {
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return default?.get(name) ?: descriptor?.get(name)?.defaultItem()
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return default?.get(name) ?: descriptor?.get(name)?.defaultValue
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}
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/**
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@ -94,7 +97,7 @@ public open class Scheme() : Described, MetaRepr, ItemPropertyProvider {
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descriptor?.items?.forEach { (key, itemDescriptor) ->
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val token = NameToken(key)
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val name = token.asName()
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val item = default?.get(name) ?: itemDescriptor.defaultItem()
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val item = default?.get(name) ?: itemDescriptor.defaultValue
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if (item != null) {
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put(token, item)
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}
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@ -1,47 +0,0 @@
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package space.kscience.dataforge.meta.descriptors
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import space.kscience.dataforge.meta.*
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import space.kscience.dataforge.names.NameToken
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/**
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* A [Meta] that is constructed from [NodeDescriptor]
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*/
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private class DescriptorMeta(val descriptor: NodeDescriptor) : Meta, MetaBase() {
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override val items: Map<NameToken, MetaItem>
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get() = buildMap {
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descriptor.items.forEach { (token, descriptorItem) ->
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val item = descriptorItem.defaultItem()
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if (item != null) {
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put(NameToken(token), item)
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}
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}
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}
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}
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/**
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* Generate a laminate representing default item set generated by this descriptor
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*/
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public fun NodeDescriptor.defaultMeta(): Laminate = Laminate(default, DescriptorMeta(this))
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/**
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* Build a default [MetaItemNode] from this node descriptor
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*/
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internal fun NodeDescriptor.defaultItem(): MetaItemNode<*> =
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MetaItemNode(defaultMeta())
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/**
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* Build a default [MetaItemValue] from this descriptor
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*/
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internal fun ValueDescriptor.defaultItem(): MetaItemValue? {
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return MetaItemValue(default ?: return null)
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}
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/**
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* Build a default [TypedMetaItem] from descriptor.
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*/
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public fun ItemDescriptor.defaultItem(): MetaItem? {
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return when (this) {
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is ValueDescriptor -> defaultItem()
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is NodeDescriptor -> defaultItem()
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}
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}
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@ -37,6 +37,11 @@ public sealed interface ItemDescriptor: MetaRepr {
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*/
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public val indexKey: String
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/**
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* Compute and cache the default [MetaItem] value described by this descriptor
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*/
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public val defaultValue: MetaItem?
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public companion object {
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public const val DEFAULT_INDEX_KEY: String = "@index"
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}
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@ -5,6 +5,22 @@ import space.kscience.dataforge.misc.DFBuilder
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import space.kscience.dataforge.names.*
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/**
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* A [Meta] that is constructed from [NodeDescriptor]
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*/
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private class DescriptorMeta(val descriptor: NodeDescriptor) : Meta, MetaBase() {
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override val items: Map<NameToken, MetaItem>
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get() = buildMap {
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descriptor.items.forEach { (token, descriptorItem) ->
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val item = descriptorItem.defaultValue
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if (item != null) {
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put(NameToken(token), item)
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}
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}
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}
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}
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/**
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* Descriptor for meta node. Could contain additional information for viewing
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* and editing.
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@ -42,6 +58,11 @@ public sealed interface NodeDescriptor: ItemDescriptor {
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*/
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public val values: Map<String, ValueDescriptor>
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/**
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* Generate a laminate representing default item set generated by this descriptor
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*/
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public fun defaultMeta(): Laminate = Laminate(default, DescriptorMeta(this))
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public companion object {
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internal val ITEM_KEY: Name = "item".asName()
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@ -166,6 +187,11 @@ public class NodeDescriptorBuilder(config: Config = Config()) : ItemDescriptorBu
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value(name.toName(), block)
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}
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/**
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* Build a default [MetaItemNode] from this node descriptor
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*/
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override val defaultValue: MetaItem by lazy { MetaItemNode(defaultMeta()) }
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override fun build(): NodeDescriptor = NodeDescriptorBuilder(config.copy())
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public companion object {
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@ -131,5 +131,7 @@ public class ValueDescriptorBuilder(config: Config = Config()) : ItemDescriptorB
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this.allowedValues = v.map { Value.of(it) }
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}
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override val defaultValue: MetaItem? get() = default?.asMetaItem()
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override fun build(): ValueDescriptor = ValueDescriptorBuilder(config.copy())
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}
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