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Add support for referencing direct Map keys in graphs.
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5 changes: 4 additions & 1 deletion
5
core/src/commonMain/kotlin/maryk/core/properties/graph/GraphContext.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,13 @@ | ||
| package maryk.core.properties.graph | ||
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| import maryk.core.models.IsDataModel | ||
| import maryk.core.properties.definitions.IsSerializablePropertyDefinition | ||
| import maryk.core.properties.references.IsPropertyReference | ||
| import maryk.core.query.ContainsDataModelContext | ||
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| /** Context for Graph serializing */ | ||
| class GraphContext( | ||
| override var dataModel: IsDataModel? = null, | ||
| var subDataModel: IsDataModel? = null | ||
| var subDataModel: IsDataModel? = null, | ||
| var reference: IsPropertyReference<*, IsSerializablePropertyDefinition<*, *>, *>? = null, | ||
| ) : ContainsDataModelContext<IsDataModel> |
125 changes: 125 additions & 0 deletions
125
core/src/commonMain/kotlin/maryk/core/properties/graph/GraphMapItem.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| package maryk.core.properties.graph | ||
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| import maryk.core.exceptions.ContextNotFoundException | ||
| import maryk.core.models.ContextualDataModel | ||
| import maryk.core.models.IsDataModel | ||
| import maryk.core.models.IsValuesDataModel | ||
| import maryk.core.models.serializers.ObjectDataModelSerializer | ||
| import maryk.core.models.values | ||
| import maryk.core.properties.IsPropertyContext | ||
| import maryk.core.properties.definitions.IsMapDefinition | ||
| import maryk.core.properties.definitions.contextual.ContextualPropertyReferenceDefinition | ||
| import maryk.core.properties.definitions.contextual.ContextualSubDefinition | ||
| import maryk.core.properties.definitions.wrapper.IsDefinitionWrapper | ||
| import maryk.core.properties.definitions.wrapper.IsMapDefinitionWrapper | ||
| import maryk.core.properties.definitions.wrapper.contextual | ||
| import maryk.core.properties.graph.PropRefGraph.Companion.parent | ||
| import maryk.core.properties.graph.PropRefGraph.Companion.properties | ||
| import maryk.core.properties.references.IsMapReference | ||
| import maryk.core.query.ContainsDataModelContext | ||
| import maryk.core.values.ObjectValues | ||
| import maryk.json.IsJsonLikeReader | ||
| import maryk.json.IsJsonLikeWriter | ||
| import maryk.json.JsonToken | ||
| import maryk.lib.exceptions.ParseException | ||
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| operator fun <K: Any, DM: IsDataModel> IsMapDefinitionWrapper<K, *, *, *, *>.get( | ||
| key: K | ||
| ) = GraphMapItem<K, DM>( | ||
| mapReference = this.ref() as IsMapReference<*, *, *, *>, | ||
| key = key, | ||
| ) | ||
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| /** | ||
| * Represents a Property Reference Graph branch below a [parent] with all [properties] to fetch | ||
| * [properties] should always be sorted by index so processing graphs is a lot easier | ||
| */ | ||
| data class GraphMapItem<K: Any, DM: IsDataModel> internal constructor( | ||
| val mapReference: IsMapReference<*, *, *, *>, | ||
| val key: K, | ||
| ) : IsPropRefGraphNode<DM>, IsTransportablePropRefGraphNode { | ||
| override val index = mapReference.index | ||
| override val graphType = PropRefGraphType.MapKey | ||
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| override fun toString() = "${this.mapReference.name}[$key]" | ||
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| companion object : ContextualDataModel<GraphMapItem<*, *>, Companion, ContainsDataModelContext<*>, GraphContext>( | ||
| contextTransformer = { | ||
| if (it is GraphContext && it.subDataModel != null) { | ||
| GraphContext(it.subDataModel) | ||
| } else { | ||
| GraphContext(it?.dataModel) | ||
| } | ||
| } | ||
| ) { | ||
| val mapReference by contextual( | ||
| index = 1u, | ||
| getter = GraphMapItem<*, *>::mapReference, | ||
| definition = ContextualPropertyReferenceDefinition( | ||
| contextualResolver = { context: GraphContext? -> | ||
| (context?.subDataModel ?: context?.dataModel) as? IsValuesDataModel? ?: throw ContextNotFoundException() | ||
| } | ||
| ), | ||
| capturer = { context, value -> | ||
| @Suppress("UNCHECKED_CAST") | ||
| context.reference = value as IsMapReference<Comparable<Any>, Any, IsPropertyContext, IsMapDefinitionWrapper<Comparable<Any>, Any, Any, IsPropertyContext, Any>> | ||
| } | ||
| ) | ||
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| val key by contextual( | ||
| index = 2u, | ||
| getter = GraphMapItem<*, *>::key, | ||
| definition = ContextualSubDefinition( | ||
| contextualResolver = { context: GraphContext? -> | ||
| @Suppress("UNCHECKED_CAST") | ||
| (context?.reference as IsMapReference<Comparable<Any>, Any, IsPropertyContext, IsMapDefinitionWrapper<Comparable<Any>, Any, Any, IsPropertyContext, Any>>?)?.propertyDefinition?.definition?.keyDefinition | ||
| ?: throw ContextNotFoundException() | ||
| } | ||
| ) | ||
| ) | ||
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| override fun invoke(values: ObjectValues<GraphMapItem<*, *>, Companion>): GraphMapItem<*, *> = GraphMapItem<Any, IsDataModel>( | ||
| mapReference = values(1u), | ||
| key = values(2u) | ||
| ) | ||
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| override val Serializer = object: ObjectDataModelSerializer<GraphMapItem<*, *>, Companion, ContainsDataModelContext<*>, GraphContext>(this) { | ||
| override fun writeObjectAsJson( | ||
| obj: GraphMapItem<*, *>, | ||
| writer: IsJsonLikeWriter, | ||
| context: GraphContext?, | ||
| skip: List<IsDefinitionWrapper<*, *, *, GraphMapItem<*, *>>>? | ||
| ) { | ||
| writer.writeString("${obj.mapReference.name}[${obj.key}]") | ||
| } | ||
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| override fun readJson( | ||
| reader: IsJsonLikeReader, | ||
| context: GraphContext? | ||
| ): ObjectValues<GraphMapItem<*, *>, Companion> { | ||
| val tokenToParse: JsonToken.Value<*> = reader.currentToken as? JsonToken.Value<*> | ||
| ?: throw ParseException("Expected value token") | ||
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| val (name, keyAsString) = tokenToParse.value.toString().split("[", "]") | ||
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| val mapReference = context?.dataModel?.getPropertyReferenceByName(name, context) as? IsMapReference<*, *, *, *> | ||
| ?: throw ParseException("Expected MapReference") | ||
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| @Suppress("UNCHECKED_CAST") | ||
| val key = when (val mapDef = mapReference.comparablePropertyDefinition) { | ||
| is IsMapDefinition<*, *, *> -> mapDef.keyDefinition.fromString(keyAsString) as Comparable<Any> | ||
| else -> throw ParseException("Unknown MapReference type") | ||
| } | ||
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| return values { | ||
| mapNonNulls( | ||
| this.mapReference withSerializable mapReference, | ||
| this.key withSerializable key | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
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