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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  
17  package org.springframework.batch.repeat.exception;
18  
19  import java.util.Arrays;
20  
21  import org.springframework.batch.repeat.RepeatContext;
22  
23  /**
24   * Composiste {@link ExceptionHandler} that loops though a list of delegates.
25   * 
26   * @author Dave Syer
27   * 
28   */
29  public class CompositeExceptionHandler implements ExceptionHandler {
30  
31  	private ExceptionHandler[] handlers = new ExceptionHandler[0];
32  
33  	public void setHandlers(ExceptionHandler[] handlers) {
34  		this.handlers = Arrays.asList(handlers).toArray(new ExceptionHandler[handlers.length]);
35  	}
36  
37  	/**
38  	 * Iterate over the handlers delegating the call to each in turn. The chain
39  	 * ends if an exception is thrown.
40  	 * 
41  	 * @see ExceptionHandler#handleException(RepeatContext, Throwable)
42  	 */
43      @Override
44  	public void handleException(RepeatContext context, Throwable throwable) throws Throwable {
45  		for (int i = 0; i < handlers.length; i++) {
46  			ExceptionHandler handler = handlers[i];
47  			handler.handleException(context, throwable);
48  		}
49  	}
50  }