Meta to JSON SNS fix
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@ -1,9 +1,11 @@
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package hep.dataforge.data
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import hep.dataforge.meta.*
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import hep.dataforge.meta.Meta
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import hep.dataforge.meta.isEmpty
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import hep.dataforge.meta.scheme.Scheme
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import hep.dataforge.meta.scheme.SchemeSpec
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import hep.dataforge.meta.scheme.string
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import hep.dataforge.meta.scheme.wrap
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import hep.dataforge.names.toName
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@ -55,4 +57,4 @@ fun <T : Any> DataNode<T>.filter(filter: Meta): DataNode<T> = filter(DataFilter.
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* Filter data using [DataFilter] builder
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*/
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fun <T : Any> DataNode<T>.filter(filterBuilder: DataFilter.() -> Unit): DataNode<T> =
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filter(DataFilter.invoke(filterBuilder))
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filter(DataFilter(filterBuilder))
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@ -3,6 +3,7 @@ package hep.dataforge.meta
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import hep.dataforge.meta.descriptors.ItemDescriptor
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import hep.dataforge.meta.descriptors.NodeDescriptor
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import hep.dataforge.meta.descriptors.ValueDescriptor
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import hep.dataforge.meta.scheme.getProperty
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import hep.dataforge.names.NameToken
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import hep.dataforge.names.toName
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import hep.dataforge.values.*
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@ -26,27 +27,75 @@ fun Value.toJson(descriptor: ValueDescriptor? = null): JsonElement {
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}
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//Use these methods to customize JSON key mapping
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private fun NameToken.toJsonKey(descriptor: ItemDescriptor?) = toString()
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private fun String.toJsonKey(descriptor: ItemDescriptor?) = descriptor?.getProperty("jsonName").string ?: toString()
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//private fun NodeDescriptor?.getDescriptor(key: String) = this?.items?.get(key)
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fun Meta.toJson(descriptor: NodeDescriptor? = null): JsonObject {
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/**
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* Convert given [Meta] to [JsonObject]. Primitives and nodes are copied as is, same name siblings are treated as json arrays
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*/
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fun Meta.toJson(descriptor: NodeDescriptor? = null, index: String? = null): JsonObject {
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//TODO search for same name siblings and arrange them into arrays
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val map = this.items.entries.associate { (name, item) ->
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val itemDescriptor = descriptor?.items?.get(name.body)
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val key = name.toJsonKey(itemDescriptor)
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val value = when (item) {
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val elementMap = HashMap<String, JsonElement>()
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fun MetaItem<*>.toJsonElement(itemDescriptor: ItemDescriptor?, index: String? = null): JsonElement = when (this) {
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is MetaItem.ValueItem -> {
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item.value.toJson(itemDescriptor as? ValueDescriptor)
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value.toJson(itemDescriptor as? ValueDescriptor)
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}
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is MetaItem.NodeItem -> {
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item.node.toJson(itemDescriptor as? NodeDescriptor)
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node.toJson(itemDescriptor as? NodeDescriptor, index)
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}
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}
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key to value
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fun addElement(key: String) {
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val itemDescriptor = descriptor?.items?.get(key)
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val jsonKey = key.toJsonKey(itemDescriptor)
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val items = getIndexed(key)
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when (items.size) {
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0 -> {
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//do nothing
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}
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return JsonObject(map)
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1 -> {
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elementMap[jsonKey] = items.values.first().toJsonElement(itemDescriptor)
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}
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else -> {
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val array = jsonArray {
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items.forEach { (index, item) ->
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+item.toJsonElement(itemDescriptor, index)
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}
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}
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elementMap[jsonKey] = array
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}
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}
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}
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((descriptor?.items?.keys ?: emptySet()) + items.keys.map { it.body }).forEach(::addElement)
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if (index != null) {
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elementMap["@index"] = JsonPrimitive(index)
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}
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return JsonObject(elementMap)
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// // use descriptor keys in the order they are declared
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// val keys = (descriptor?.items?.keys ?: emptySet()) + this.items.keys.map { it.body }
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//
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// //TODO search for same name siblings and arrange them into arrays
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// val map = this.items.entries.associate { (name, item) ->
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// val itemDescriptor = descriptor?.items?.get(name.body)
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// val key = name.toJsonKey(itemDescriptor)
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// val value = when (item) {
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// is MetaItem.ValueItem -> {
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// item.value.toJson(itemDescriptor as? ValueDescriptor)
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// }
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// is MetaItem.NodeItem -> {
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// item.node.toJson(itemDescriptor as? NodeDescriptor)
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// }
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// }
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// key to value
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// }
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// return JsonObject(map)
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}
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fun JsonObject.toMeta(descriptor: NodeDescriptor? = null): Meta = JsonMeta(this, descriptor)
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@ -88,6 +137,9 @@ fun JsonElement.toMetaItem(descriptor: ItemDescriptor? = null): MetaItem<JsonMet
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}
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}
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/**
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* A meta wrapping json object
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*/
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class JsonMeta(val json: JsonObject, val descriptor: NodeDescriptor? = null) : MetaBase() {
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@Suppress("UNCHECKED_CAST")
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@ -95,7 +147,8 @@ class JsonMeta(val json: JsonObject, val descriptor: NodeDescriptor? = null) : M
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val itemDescriptor = descriptor?.items?.get(key)
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return when (value) {
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is JsonPrimitive -> {
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this[key] = MetaItem.ValueItem(value.toValue(itemDescriptor as? ValueDescriptor)) as MetaItem<JsonMeta>
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this[key] =
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MetaItem.ValueItem(value.toValue(itemDescriptor as? ValueDescriptor)) as MetaItem<JsonMeta>
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}
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is JsonObject -> {
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this[key] = MetaItem.NodeItem(
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@ -125,7 +178,7 @@ class JsonMeta(val json: JsonObject, val descriptor: NodeDescriptor? = null) : M
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}
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override val items: Map<NameToken, MetaItem<JsonMeta>> by lazy {
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val map = HashMap<String, MetaItem<JsonMeta>>()
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val map = LinkedHashMap<String, MetaItem<JsonMeta>>()
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json.forEach { (key, value) -> map[key] = value }
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map.mapKeys { it.key.toName().first()!! }
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}
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@ -17,7 +17,7 @@ interface MutableMeta<out M : MutableMeta<M>> : MetaNode<M> {
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* Changes in Meta are not thread safe.
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*/
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abstract class AbstractMutableMeta<M : MutableMeta<M>> : AbstractMetaNode<M>(), MutableMeta<M> {
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protected val _items: MutableMap<NameToken, MetaItem<M>> = HashMap()
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protected val _items: MutableMap<NameToken, MetaItem<M>> = LinkedHashMap()
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override val items: Map<NameToken, MetaItem<M>>
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get() = _items
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@ -68,6 +68,9 @@ open class SchemeSpec<T : Scheme>(val builder: () -> T) : Specification<T> {
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this.defaultProvider = defaultProvider
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}
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}
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@Suppress("OVERRIDE_BY_INLINE")
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final override inline operator fun invoke(action: T.() -> Unit) = empty().apply(action)
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}
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/**
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@ -10,13 +10,6 @@ import kotlin.jvm.JvmName
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*
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*/
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interface Specification<T : Configurable> {
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/**
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* Update given configuration using given type as a builder
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*/
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fun update(config: Config, action: T.() -> Unit): T {
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return wrap(config).apply(action)
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}
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fun empty() = wrap()
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/**
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@ -24,18 +17,24 @@ interface Specification<T : Configurable> {
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*/
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fun wrap(config: Config = Config(), defaultProvider: (Name) -> MetaItem<*>? = { null }): T
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/**
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* Wrap a configuration using static meta as default
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*/
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fun wrap(config: Config = Config(), default: Meta): T = wrap(config) { default[it] }
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/**
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* Wrap a configuration using static meta as default
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*/
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fun wrap(default: Meta): T = wrap(Config()) { default[it] }
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operator fun invoke(action: T.() -> Unit) = empty().apply(action)
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}
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inline operator fun <T : Configurable> Specification<T>.invoke(action: T.() -> Unit) = empty().apply(action)
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/**
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* Update given configuration using given type as a builder
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*/
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fun <T : Configurable> Specification<T>.update(config: Config, action: T.() -> Unit): T = wrap(config).apply(action)
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/**
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* Wrap a configuration using static meta as default
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*/
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fun <T : Configurable> Specification<T>.wrap(config: Config = Config(), default: Meta): T = wrap(config) { default[it] }
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/**
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* Wrap a configuration using static meta as default
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*/
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fun <T : Configurable> Specification<T>.wrap(default: Meta): T = wrap(Config()) { default[it] }
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/**
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* Apply specified configuration to configurable
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@ -0,0 +1,39 @@
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package hep.dataforge.meta
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import kotlinx.serialization.json.int
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import kotlinx.serialization.json.json
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import kotlinx.serialization.json.jsonArray
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import kotlin.test.Test
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import kotlin.test.assertEquals
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class JsonMetaTest {
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val json = json {
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"firstValue" to "a"
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"secondValue" to "b"
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"array" to jsonArray {
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+"1"
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+"2"
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+"3"
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}
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"nodeArray" to jsonArray {
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+json {
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"index" to 1
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}
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+json {
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"index" to 2
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}
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+json {
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"index" to 3
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}
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}
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}
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@Test
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fun jsonMetaConversion() {
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val meta = json.toMeta()
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val reconstructed = meta.toJson()
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println(json)
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println(reconstructed)
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assertEquals(2, reconstructed["nodeArray"]?.jsonArray?.get(1)?.jsonObject?.get("index")?.int)
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}
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}
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