org.apache.activemq.leveldb.util.TimeMetric.scala Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.leveldb.util
case class TimeMetric() {
var max = 0L
def add(duration:Long) = this.synchronized {
max = max.max(duration)
}
def get = {
this.synchronized {
max
} / 1000000.0
}
def reset = {
this.synchronized {
val rc = max
max = 0
rc
} / 1000000.0
}
def apply[T](func: =>T):T = {
val start = System.nanoTime()
try {
func
} finally {
add(System.nanoTime() - start)
}
}
}