1 | /* |
2 | * Copyright 2006-2013 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.core.listener; |
17 | |
18 | import java.util.Iterator; |
19 | import java.util.List; |
20 | |
21 | import org.springframework.batch.core.JobExecution; |
22 | import org.springframework.batch.core.JobExecutionListener; |
23 | import org.springframework.core.Ordered; |
24 | |
25 | /** |
26 | * @author Dave Syer |
27 | * |
28 | */ |
29 | public class CompositeJobExecutionListener implements JobExecutionListener { |
30 | |
31 | private OrderedComposite<JobExecutionListener> listeners = new OrderedComposite<JobExecutionListener>(); |
32 | |
33 | /** |
34 | * Public setter for the listeners. |
35 | * |
36 | * @param listeners |
37 | */ |
38 | public void setListeners(List<? extends JobExecutionListener> listeners) { |
39 | this.listeners.setItems(listeners); |
40 | } |
41 | |
42 | /** |
43 | * Register additional listener. |
44 | * |
45 | * @param jobExecutionListener |
46 | */ |
47 | public void register(JobExecutionListener jobExecutionListener) { |
48 | listeners.add(jobExecutionListener); |
49 | } |
50 | |
51 | /** |
52 | * Call the registered listeners in reverse order, respecting and |
53 | * prioritising those that implement {@link Ordered}. |
54 | * @see org.springframework.batch.core.JobExecutionListener#afterJob(org.springframework.batch.core.JobExecution) |
55 | */ |
56 | @Override |
57 | public void afterJob(JobExecution jobExecution) { |
58 | for (Iterator<JobExecutionListener> iterator = listeners.reverse(); iterator.hasNext();) { |
59 | JobExecutionListener listener = iterator.next(); |
60 | listener.afterJob(jobExecution); |
61 | } |
62 | } |
63 | |
64 | /** |
65 | * Call the registered listeners in order, respecting and prioritising those |
66 | * that implement {@link Ordered}. |
67 | * @see org.springframework.batch.core.JobExecutionListener#beforeJob(org.springframework.batch.core.JobExecution) |
68 | */ |
69 | @Override |
70 | public void beforeJob(JobExecution jobExecution) { |
71 | for (Iterator<JobExecutionListener> iterator = listeners.iterator(); iterator.hasNext();) { |
72 | JobExecutionListener listener = iterator.next(); |
73 | listener.beforeJob(jobExecution); |
74 | } |
75 | } |
76 | |
77 | } |