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/*
* =========================================================================================
* Copyright © 2013-2014 the kamon project <http://kamon.io/>
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions
* and limitations under the License.
* =========================================================================================
*/
package kamon.trace
import scala.collection.concurrent.TrieMap
import kamon.trace.TraceLocal.TraceLocalKey
object TraceLocal {
trait TraceLocalKey {
type ValueType
}
def store(key: TraceLocalKey)(value: key.ValueType): Unit =
TraceRecorder.currentContext.map(_.traceLocalStorage.store(key)(value))
def retrieve(key: TraceLocalKey): Option[key.ValueType] =
TraceRecorder.currentContext.flatMap(_.traceLocalStorage.retrieve(key))
}
class TraceLocalStorage {
val underlyingStorage = TrieMap[TraceLocal.TraceLocalKey, Any]()
def store(key: TraceLocalKey)(value: key.ValueType): Unit = underlyingStorage.put(key, value)
def retrieve(key: TraceLocalKey): Option[key.ValueType] = underlyingStorage.get(key).map(_.asInstanceOf[key.ValueType])
}
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