1   /**
2    * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.job;
24  
25  import com.liferay.portal.kernel.job.IntervalJob;
26  
27  import org.apache.commons.logging.Log;
28  import org.apache.commons.logging.LogFactory;
29  
30  import org.quartz.Job;
31  import org.quartz.JobDetail;
32  import org.quartz.JobExecutionContext;
33  
34  /**
35   * <a href="JobWrapper.java.html"><b><i>View Source</i></b></a>
36   *
37   * @author Brian Wing Shun Chan
38   *
39   */
40  public class JobWrapper implements Job {
41  
42      public void execute(JobExecutionContext context) {
43          try {
44              if (_job == null) {
45                  JobDetail jobDetail = context.getJobDetail();
46  
47                  Class<IntervalJob> intervalJobClass = JobClassUtil.get(
48                      jobDetail.getName());
49  
50                  _classLoader = intervalJobClass.getClassLoader();
51  
52                  _job = (IntervalJob)_classLoader.loadClass(
53                      intervalJobClass.getName()).newInstance();
54              }
55  
56              ClassLoader contextClassLoader =
57                  Thread.currentThread().getContextClassLoader();
58  
59              try {
60                  Thread.currentThread().setContextClassLoader(_classLoader);
61  
62                  _job.execute(new JobExecutionContextImpl(context));
63              }
64              finally {
65                  Thread.currentThread().setContextClassLoader(
66                      contextClassLoader);
67              }
68          }
69          catch (Exception e) {
70              _log.error(e, e);
71          }
72      }
73  
74      private static Log _log = LogFactory.getLog(JobWrapper.class);
75  
76      private ClassLoader _classLoader;
77      private IntervalJob _job;
78  
79  }