kscience/dataforge-core
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Empty meta is represented by empty json object

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This commit is contained in:
Alexander Nozik 2021-08-01 21:02:15 +03:00
parent 90a92c4121
commit 28a6914747
2 changed files with 9 additions and 13 deletions
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2
build.gradle.kts
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@ -4,7 +4,7 @@ plugins {
allprojects {
group = "space.kscience"
version = "0.5.0-dev-6"
version = "0.5.0-dev-7"
}
subprojects {

20
dataforge-meta/src/commonMain/kotlin/space/kscience/dataforge/meta/JsonMeta.kt
View File

@ -28,26 +28,22 @@ public fun Value.toJson(descriptor: MetaDescriptor? = null): JsonElement = when
private fun String.toJsonKey(descriptor: MetaDescriptor?) = descriptor?.attributes?.get("jsonName").string ?: toString()
private fun Meta.toJsonWithIndex(descriptor: MetaDescriptor?, index: String?): JsonElement = if (items.isEmpty()) {
value?.toJson(descriptor) ?: JsonNull
value?.toJson(descriptor) ?: JsonObject(emptyMap())
} else {
val pairs: MutableList<Pair<String, JsonElement>> = items.entries.groupBy {
it.key.body
}.mapNotNullTo(ArrayList()) { (body, list) ->
}.mapTo(ArrayList()) { (body, list) ->
val childDescriptor = descriptor?.children?.get(body)
if (list.size == 1) {
val (token, element) = list.first()
//do not add empty element
if (!element.isEmpty()) {
val child: JsonElement = element.toJsonWithIndex(childDescriptor, token.index)
body to child
} else null
val child: JsonElement = element.toJsonWithIndex(childDescriptor, token.index)
body to child
} else {
val elements: List<JsonElement> = list.sortedBy { it.key.index }.mapIndexedNotNull { index, entry ->
if (!entry.value.isEmpty()) {
//Use index if it is not equal to the item order
val actualIndex = if (index.toString() != entry.key.index) entry.key.index else null
entry.value.toJsonWithIndex(childDescriptor, actualIndex)
} else null
val elements: List<JsonElement> = list.sortedBy { it.key.index }.mapIndexed { index, entry ->
//Use index if it is not equal to the item order
val actualIndex = if (index.toString() != entry.key.index) entry.key.index else null
entry.value.toJsonWithIndex(childDescriptor, actualIndex)
}
body to JsonArray(elements)
}