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[json] IJ-CR-124164 Support concurrent properties map modification via employing atomic reference paired with a persistent map

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GitOrigin-RevId: 6129515c562ae2fd1f9df79d6919f3baa93d4d5e
This commit is contained in:
Nikita Katkov
2024-02-22 17:10:30 +01:00
committed by intellij-monorepo-bot
parent 69e995a22a
commit 90f7a06e75
1 changed files with 17 additions and 5 deletions
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22
json/src/com/jetbrains/jsonSchema/impl/light/nodes/JsonSchemaObjectBackedByJacksonBase.kt
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@@ -14,6 +14,7 @@ import com.jetbrains.jsonSchema.impl.light.legacy.JsonSchemaObjectReadingUtils
import com.jetbrains.jsonSchema.impl.light.legacy.isOldParserAwareOfFieldName
import com.jetbrains.jsonSchema.impl.light.legacy.tryReadEnumMetadata
import java.util.*
import java.util.concurrent.atomic.AtomicReference
private val ONE_OF_KEY = Key<List<JsonSchemaObject>>("oneOf")
private val ANY_OF_KEY = Key<List<JsonSchemaObject>>("anyOf")
@@ -31,13 +32,24 @@ internal abstract class JsonSchemaObjectBackedByJacksonBase(
abstract fun getRootSchemaObject(): RootJsonSchemaObjectBackedByJackson
private var myCompositeObjectsCache = KeyFMap.EMPTY_MAP
private var myCompositeObjectsCache = AtomicReference(KeyFMap.EMPTY_MAP)
protected fun <V : Any> getOrComputeValue(key: Key<V>, computation: () -> V): V {
val existingValue = myCompositeObjectsCache.get(key)
if (existingValue != null) return existingValue
val newValue = computation()
myCompositeObjectsCache = myCompositeObjectsCache.plus(key, newValue)
var existingMap: KeyFMap
var newValue: V?
do {
existingMap = myCompositeObjectsCache.get()
newValue = existingMap[key]
if (newValue == null) {
val mapWithNewValue = existingMap.plus(key, computation())
if (myCompositeObjectsCache.compareAndSet(existingMap, mapWithNewValue)) {
newValue = mapWithNewValue.get(key)
}
}
}
while (newValue == null)
return newValue
}