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.component.timer; 018 019 import java.util.Date; 020 import java.util.Timer; 021 import java.util.TimerTask; 022 023 import org.apache.camel.Exchange; 024 import org.apache.camel.Processor; 025 import org.apache.camel.impl.DefaultConsumer; 026 import org.apache.commons.logging.Log; 027 import org.apache.commons.logging.LogFactory; 028 029 /** 030 * The timer consumer. 031 * 032 * @version $Revision: 1122 $ 033 */ 034 public class TimerConsumer extends DefaultConsumer<Exchange> { 035 private static final transient Log LOG = LogFactory.getLog(TimerConsumer.class); 036 private final TimerEndpoint endpoint; 037 private TimerTask task; 038 039 public TimerConsumer(TimerEndpoint endpoint, Processor processor) { 040 super(endpoint, processor); 041 this.endpoint = endpoint; 042 } 043 044 @Override 045 protected void doStart() throws Exception { 046 task = new TimerTask() { 047 @Override 048 public void run() { 049 sendTimerExchange(); 050 } 051 }; 052 053 Timer timer = endpoint.getTimer(); 054 configureTask(task, timer); 055 } 056 057 @Override 058 protected void doStop() throws Exception { 059 task.cancel(); 060 } 061 062 protected void configureTask(TimerTask task, Timer timer) { 063 if (endpoint.isFixedRate()) { 064 if (endpoint.getTime() != null) { 065 timer.scheduleAtFixedRate(task, endpoint.getTime(), endpoint.getPeriod()); 066 } else { 067 timer.scheduleAtFixedRate(task, endpoint.getDelay(), endpoint.getPeriod()); 068 } 069 } else { 070 if (endpoint.getTime() != null) { 071 if (endpoint.getPeriod() >= 0) { 072 timer.schedule(task, endpoint.getTime(), endpoint.getPeriod()); 073 } else { 074 timer.schedule(task, endpoint.getTime()); 075 } 076 } else { 077 if (endpoint.getPeriod() >= 0) { 078 timer.schedule(task, endpoint.getDelay(), endpoint.getPeriod()); 079 } else { 080 timer.schedule(task, endpoint.getDelay()); 081 } 082 } 083 } 084 } 085 086 protected void sendTimerExchange() { 087 Exchange exchange = endpoint.createExchange(); 088 exchange.setProperty("org.apache.camel.timer.name", endpoint.getTimerName()); 089 exchange.setProperty("org.apache.camel.timer.time", endpoint.getTime()); 090 exchange.setProperty("org.apache.camel.timer.period", endpoint.getPeriod()); 091 092 Date now = new Date(); 093 exchange.setProperty("org.apache.camel.timer.firedTime", now); 094 // also set now on in header with same key as quaartz to be consistent 095 exchange.getIn().setHeader("firedTime", now); 096 097 try { 098 getProcessor().process(exchange); 099 } catch (Exception e) { 100 LOG.error("Caught: " + e, e); 101 } 102 } 103 }