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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  package org.springframework.batch.repeat.listener;
17  
18  import java.util.ArrayList;
19  import java.util.Arrays;
20  import java.util.List;
21  
22  import org.springframework.batch.repeat.RepeatStatus;
23  import org.springframework.batch.repeat.RepeatContext;
24  import org.springframework.batch.repeat.RepeatListener;
25  
26  /**
27   * @author Dave Syer
28   * 
29   */
30  public class CompositeRepeatListener implements RepeatListener {
31  
32  	private List<RepeatListener> listeners = new ArrayList<RepeatListener>();
33  
34  	/**
35  	 * Public setter for the listeners.
36  	 * 
37  	 * @param listeners
38  	 */
39  	public void setListeners(RepeatListener[] listeners) {
40  		this.listeners = Arrays.asList(listeners);
41  	}
42  
43  	/**
44  	 * Register additional listener.
45  	 * 
46  	 * @param listener
47  	 */
48  	public void register(RepeatListener listener) {
49  		if (!listeners.contains(listener)) {
50  			listeners.add(listener);
51  		}
52  	}
53  
54  	/* (non-Javadoc)
55  	 * @see org.springframework.batch.repeat.RepeatListener#after(org.springframework.batch.repeat.RepeatContext, org.springframework.batch.repeat.ExitStatus)
56  	 */
57      @Override
58  	public void after(RepeatContext context, RepeatStatus result) {
59  		for (RepeatListener listener : listeners) {
60  			listener.after(context, result);
61  		}
62  	}
63  
64  	/* (non-Javadoc)
65  	 * @see org.springframework.batch.repeat.RepeatListener#before(org.springframework.batch.repeat.RepeatContext)
66  	 */
67      @Override
68  	public void before(RepeatContext context) {
69  		for (RepeatListener listener : listeners) {
70  			listener.before(context);
71  		}
72  	}
73  
74  	/* (non-Javadoc)
75  	 * @see org.springframework.batch.repeat.RepeatListener#close(org.springframework.batch.repeat.RepeatContext)
76  	 */
77      @Override
78  	public void close(RepeatContext context) {
79  		for (RepeatListener listener : listeners) {
80  			listener.close(context);
81  		}
82  	}
83  
84  	/* (non-Javadoc)
85  	 * @see org.springframework.batch.repeat.RepeatListener#onError(org.springframework.batch.repeat.RepeatContext, java.lang.Throwable)
86  	 */
87      @Override
88  	public void onError(RepeatContext context, Throwable e) {
89  		for (RepeatListener listener : listeners) {
90  			listener.onError(context, e);
91  		}
92  	}
93  
94  	/* (non-Javadoc)
95  	 * @see org.springframework.batch.repeat.RepeatListener#open(org.springframework.batch.repeat.RepeatContext)
96  	 */
97      @Override
98  	public void open(RepeatContext context) {
99  		for (RepeatListener listener : listeners) {
100 			listener.open(context);
101 		}
102 	}
103 
104 }