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1   /*
2    * Copyright 2006-2010 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.item.mail;
17  
18  import org.springframework.mail.MailException;
19  import org.springframework.mail.MailMessage;
20  import org.springframework.mail.MailSendException;
21  
22  /**
23   * This {@link MailErrorHandler} implementation simply rethrows the exception it
24   * receives.
25   * 
26   * @author Dan Garrette
27   * @author Dave Syer
28   * 
29   * @since 2.1
30   */
31  public class DefaultMailErrorHandler implements MailErrorHandler {
32  
33  	private static final int DEFAULT_MAX_MESSAGE_LENGTH = 1024;
34  
35  	private int maxMessageLength = DEFAULT_MAX_MESSAGE_LENGTH;
36  
37  	/**
38  	 * The limit for the size of message that will be copied to the exception
39  	 * message. Output will be truncated beyond that. Default value is 1024.
40  	 * 
41  	 * @param maxMessageLength the maximum message length
42  	 */
43  	public void setMaxMessageLength(int maxMessageLength) {
44  		this.maxMessageLength = maxMessageLength;
45  	}
46  
47  	/**
48  	 * Wraps the input exception with a runtime {@link MailException}. The
49  	 * exception message will contain the failed message (using toString).
50  	 * 
51  	 * @param message a failed message
52  	 * @param exception a MessagingException
53  	 * @throws MailException a translation of the Exception
54  	 * @see MailErrorHandler#handle(MailMessage, Exception)
55  	 */
56      @Override
57  	public void handle(MailMessage message, Exception exception) throws MailException {
58  		String msg = message.toString();
59  		throw new MailSendException("Mail server send failed: "
60  				+ msg.substring(0, Math.min(maxMessageLength, msg.length())), exception);
61  	}
62  }