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.quartz;
018
019 import java.net.URI;
020 import java.text.ParseException;
021 import java.util.Date;
022 import java.util.Map;
023
024 import org.apache.camel.CamelContext;
025 import org.apache.camel.impl.DefaultComponent;
026 import org.apache.camel.util.IntrospectionSupport;
027 import org.apache.camel.util.ObjectHelper;
028 import org.apache.commons.logging.Log;
029 import org.apache.commons.logging.LogFactory;
030 import org.quartz.CronTrigger;
031 import org.quartz.Scheduler;
032 import org.quartz.SchedulerException;
033 import org.quartz.SchedulerFactory;
034 import org.quartz.SimpleTrigger;
035 import org.quartz.Trigger;
036 import org.quartz.impl.StdSchedulerFactory;
037
038 /**
039 * A <a href="http://camel.apache.org/quartz.html">Quartz Component</a>
040 * <p/>
041 * For a bried tutorial on setting cron expression see
042 * <a href="http://www.opensymphony.com/quartz/wikidocs/CronTriggers%20Tutorial.html">Quartz cron tutorial</a>.
043 *
044 * @version $Revision:520964 $
045 */
046 public class QuartzComponent extends DefaultComponent {
047 private static final transient Log LOG = LogFactory.getLog(QuartzComponent.class);
048 private SchedulerFactory factory;
049 private Scheduler scheduler;
050
051 public QuartzComponent() {
052 }
053
054 public QuartzComponent(final CamelContext context) {
055 super(context);
056 }
057
058 @Override
059 protected QuartzEndpoint createEndpoint(final String uri, final String remaining, final Map<String, Object> parameters) throws Exception {
060 QuartzEndpoint answer = new QuartzEndpoint(uri, this, getScheduler());
061
062 // lets split the remaining into a group/name
063 URI u = new URI(uri);
064 String path = ObjectHelper.after(u.getPath(), "/");
065 String host = u.getHost();
066 String cron = getAndRemoveParameter(parameters, "cron", String.class);
067 Boolean fireNow = getAndRemoveParameter(parameters, "fireNow", Boolean.class, Boolean.FALSE);
068
069 // group can be optional, if so set it to Camel
070 String name;
071 String group;
072 if (ObjectHelper.isNotEmpty(path) && ObjectHelper.isNotEmpty(host)) {
073 group = host;
074 name = path;
075 } else {
076 group = "Camel";
077 name = host;
078 }
079
080 Map<String, Object> triggerParameters = IntrospectionSupport.extractProperties(parameters, "trigger.");
081 Map<String, Object> jobParameters = IntrospectionSupport.extractProperties(parameters, "job.");
082
083 // create the trigger either cron or simple
084 Trigger trigger;
085 if (ObjectHelper.isNotEmpty(cron)) {
086 trigger = createCronTrigger(cron);
087 } else {
088 trigger = new SimpleTrigger();
089 if (fireNow) {
090 String intervalString = (String) triggerParameters.get("repeatInterval");
091 if (intervalString != null) {
092 long interval = Long.valueOf(intervalString);
093 trigger.setStartTime(new Date(System.currentTimeMillis() - interval));
094 }
095 }
096 }
097 answer.setTrigger(trigger);
098
099 trigger.setName(name);
100 trigger.setGroup(group);
101
102 setProperties(trigger, triggerParameters);
103 setProperties(answer.getJobDetail(), jobParameters);
104
105 return answer;
106 }
107
108 protected CronTrigger createCronTrigger(String path) throws ParseException {
109 // replace + back to space so its a cron expression
110 path = path.replaceAll("\\+", " ");
111 CronTrigger cron = new CronTrigger();
112 cron.setCronExpression(path);
113 return cron;
114 }
115
116 @Override
117 protected void doStart() throws Exception {
118 super.doStart();
119 if (scheduler == null) {
120 scheduler = getScheduler();
121 }
122 if (LOG.isDebugEnabled()) {
123 LOG.debug("Starting Quartz scheduler: " + scheduler.getSchedulerName());
124 }
125 scheduler.start();
126 }
127
128 @Override
129 protected void doStop() throws Exception {
130 if (scheduler != null) {
131 if (LOG.isDebugEnabled()) {
132 LOG.debug("Shutting down Quartz scheduler: " + scheduler.getSchedulerName());
133 }
134 scheduler.shutdown();
135 }
136 super.doStop();
137 }
138
139 // Properties
140 // -------------------------------------------------------------------------
141 public SchedulerFactory getFactory() {
142 if (factory == null) {
143 factory = createSchedulerFactory();
144 }
145 return factory;
146 }
147
148 public void setFactory(final SchedulerFactory factory) {
149 this.factory = factory;
150 }
151
152 public Scheduler getScheduler() throws SchedulerException {
153 if (scheduler == null) {
154 scheduler = createScheduler();
155 }
156 return scheduler;
157 }
158
159 public void setScheduler(final Scheduler scheduler) {
160 this.scheduler = scheduler;
161 }
162
163 // Implementation methods
164 // -------------------------------------------------------------------------
165 protected SchedulerFactory createSchedulerFactory() {
166 return new StdSchedulerFactory();
167 }
168
169 protected Scheduler createScheduler() throws SchedulerException {
170 Scheduler scheduler = getFactory().getScheduler();
171 scheduler.getContext().put(QuartzConstants.QUARTZ_CAMEL_CONTEXT, getCamelContext());
172 return scheduler;
173 }
174 }