spring-batch DefaultMailErrorHandler 源码
spring-batch DefaultMailErrorHandler 代码
文件路径：/spring-batch-infrastructure/src/main/java/org/springframework/batch/item/mail/DefaultMailErrorHandler.java
/*
* Copyright 2006-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.batch.item.mail;
import org.springframework.mail.MailException;
import org.springframework.mail.MailMessage;
import org.springframework.mail.MailSendException;
/**
* This {@link MailErrorHandler} implementation simply rethrows the exception it receives.
*
* @author Dan Garrette
* @author Dave Syer
* @since 2.1
*/
public class DefaultMailErrorHandler implements MailErrorHandler {
private static final int DEFAULT_MAX_MESSAGE_LENGTH = 1024;
private int maxMessageLength = DEFAULT_MAX_MESSAGE_LENGTH;
/**
* The limit for the size of message that will be copied to the exception message.
* Output will be truncated beyond that. Default value is 1024.
* @param maxMessageLength the maximum message length
*/
public void setMaxMessageLength(int maxMessageLength) {
this.maxMessageLength = maxMessageLength;
}
/**
* Wraps the input exception with a runtime {@link MailException}. The exception
* message will contain the failed message (using toString).
* @param message a failed message
* @param exception a MessagingException
* @throws MailException a translation of the Exception
* @see MailErrorHandler#handle(MailMessage, Exception)
*/
@Override
public void handle(MailMessage message, Exception exception) throws MailException {
String msg = message.toString();
throw new MailSendException(
"Mail server send failed: " + msg.substring(0, Math.min(maxMessageLength, msg.length())), exception);
}
}
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