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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  
17  package org.springframework.batch.core.step.tasklet;
18  
19  import java.util.Map;
20  
21  import org.springframework.batch.core.ExitStatus;
22  import org.springframework.util.Assert;
23  
24  /**
25   * Maps exit codes to {@link org.springframework.batch.core.ExitStatus}
26   * according to injected map. The injected map is required to contain a value
27   * for 'else' key, this value will be returned if the injected map
28   * does not contain value for the exit code returned by the system process.
29   *
30   * @author Robert Kasanicky
31   */
32  public class ConfigurableSystemProcessExitCodeMapper implements SystemProcessExitCodeMapper {
33  
34  	public static final String ELSE_KEY = "else";
35  
36  	private Map<Object, ExitStatus> mappings;
37  
38      @Override
39  	public ExitStatus getExitStatus(int exitCode) {
40  		ExitStatus exitStatus = mappings.get(exitCode);
41  		if (exitStatus != null) {
42  			return exitStatus;
43  		} else {
44  			return mappings.get(ELSE_KEY);
45  		}
46  	}
47  
48  	/**
49  	 * @param mappings <code>Integer</code> exit code keys to
50  	 * {@link org.springframework.batch.core.ExitStatus} values.
51  	 */
52  	public void setMappings(Map<Object, ExitStatus> mappings) {
53  		Assert.notNull(mappings.get(ELSE_KEY));
54  		this.mappings = mappings;
55  	}
56  
57  }