View Javadoc

1   /*
2    * Copyright 2006-2007 the original author or authors.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.springframework.batch.core.configuration.support;
18  
19  import java.util.Map;
20  
21  import org.apache.commons.logging.Log;
22  import org.apache.commons.logging.LogFactory;
23  import org.springframework.batch.core.configuration.JobFactory;
24  import org.springframework.batch.core.configuration.JobRegistry;
25  
26  /**
27   * Generic service that can bind and unbind a {@link JobFactory} in a
28   * {@link JobRegistry}.
29   * 
30   * @author Dave Syer
31   * 
32   */
33  public class JobFactoryRegistrationListener {
34  
35  	private Log logger = LogFactory.getLog(getClass());
36  
37  	private JobRegistry jobRegistry;
38  
39  	/**
40  	 * Public setter for a {@link JobRegistry} to use for all the bind and
41  	 * unbind events.
42  	 * 
43  	 * @param jobRegistry {@link JobRegistry}
44  	 */
45  	public void setJobRegistry(JobRegistry jobRegistry) {
46  		this.jobRegistry = jobRegistry;
47  	}
48  
49  	/**
50  	 * Take the {@link JobFactory} provided and register it with the
51  	 * {@link JobRegistry}.
52  	 * @param jobFactory a {@link JobFactory}
53  	 * @param params not needed by this listener.
54  	 * @throws Exception if there is a problem
55  	 */
56  	public void bind(JobFactory jobFactory, Map<String, ?> params) throws Exception {
57  		logger.info("Binding JobFactory: " + jobFactory.getJobName());
58  		jobRegistry.register(jobFactory);
59  	}
60  
61  	/**
62  	 * Take the {@link JobFactory} provided and unregister it with the
63  	 * {@link JobRegistry}.
64  	 * @param jobFactory a {@link JobFactory}
65  	 * @param params not needed by this listener.
66  	 * @throws Exception if there is a problem
67  	 */
68  	public void unbind(JobFactory jobFactory, Map<String, ?> params) throws Exception {
69  		logger.info("Unbinding JobFactory: " + jobFactory.getJobName());
70  		jobRegistry.unregister(jobFactory.getJobName());
71  	}
72  
73  }