001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.management; 018 019 /** 020 * Delegates to another {@link org.apache.camel.management.PerformanceCounter}. 021 * <p/> 022 * This is used to allow Camel to pre initialize these delegate performance counters 023 * when Camel creates the actual route from the model. Then later as the various 024 * processors, routes etc. is created and registered in the {@link org.apache.camel.spi.LifecycleStrategy} 025 * then we link this to the real {@link org.apache.camel.management.mbean.ManagedPerformanceCounter} mbean 026 * so the mbean can gather statistics. 027 * <p/> 028 * This delegation is needed as how Camel is designed to register services in the 029 * {@link org.apache.camel.spi.LifecycleStrategy} in various stages. 030 * 031 * @version $Revision: 823448 $ 032 */ 033 public class DelegatePerformanceCounter implements PerformanceCounter { 034 035 private PerformanceCounter counter; 036 private boolean statisticsEnabled; 037 038 public DelegatePerformanceCounter() { 039 } 040 041 public void setCounter(PerformanceCounter counter) { 042 this.counter = counter; 043 // init statistics based on the real counter based on how we got initialized 044 this.counter.setStatisticsEnabled(statisticsEnabled); 045 } 046 047 public void completedExchange(long time) { 048 counter.completedExchange(time); 049 } 050 051 public void failedExchange() { 052 counter.failedExchange(); 053 } 054 055 public boolean isStatisticsEnabled() { 056 // statistics is only considered enabled if we have a counter to delegate to 057 // otherwise we do not want to gather statistics (we are just a delegate with noone to delegate to) 058 return counter != null && counter.isStatisticsEnabled(); 059 } 060 061 public void setStatisticsEnabled(boolean statisticsEnabled) { 062 if (counter != null) { 063 counter.setStatisticsEnabled(statisticsEnabled); 064 } else { 065 this.statisticsEnabled = statisticsEnabled; 066 } 067 } 068 }