/*
* Copyright 2017 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
*
* http://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.integration.support;
import org.springframework.core.AttributeAccessor;
import org.springframework.core.AttributeAccessorSupport;
import org.springframework.messaging.Message;
/**
* Utilities for building error messages.
*
* @author Gary Russell
*
* @since 4.3.10
*
*/
public final class ErrorMessageUtils {
/**
* The context key for the message object.
*/
public static final String FAILED_MESSAGE_CONTEXT_KEY = "message";
/**
* The context key for the message object.
*/
public static final String INPUT_MESSAGE_CONTEXT_KEY = "inputMessage";
private ErrorMessageUtils() {
super();
}
/**
* Return a {@link AttributeAccessor} for the provided arguments.
* @param inputMessage the input message.
* @param failedMessage the failed message.
* @return the context.
*/
public static AttributeAccessor getAttributeAccessor(Message<?> inputMessage, Message<?> failedMessage) {
AttributeAccessorSupport attributes = new ErrorMessageAttributes();
if (inputMessage != null) {
attributes.setAttribute(INPUT_MESSAGE_CONTEXT_KEY, inputMessage);
}
if (failedMessage != null) {
attributes.setAttribute(FAILED_MESSAGE_CONTEXT_KEY, failedMessage);
}
return attributes;
}
@SuppressWarnings("serial")
private static class ErrorMessageAttributes extends AttributeAccessorSupport {
ErrorMessageAttributes() {
super();
}
}
}