kamon.instrumentation.logback.tools.EntriesCounterAppender.scala Maven / Gradle / Ivy
/*
* Copyright 2013-2021 The Kamon Project
*
* 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.instrumentation.logback.tools
import ch.qos.logback.classic.spi.ILoggingEvent
import ch.qos.logback.core.UnsynchronizedAppenderBase
import kamon.instrumentation.logback.LogbackMetrics
import kamon.metric.Counter
import kamon.tag.TagSet
import scala.collection.concurrent.TrieMap
class EntriesCounterAppender extends UnsynchronizedAppenderBase[ILoggingEvent] {
private val _countersPerLevel = TrieMap.empty[Int, Counter]
protected def append(event: ILoggingEvent): Unit = {
_countersPerLevel.getOrElseUpdate(event.getLevel.toInt, {
LogbackMetrics.LogEvents.withTags(TagSet.builder()
.add("component", "logback")
.add("level", event.getLevel.levelStr)
.build()
)
}).increment()
}
}