/*
* Copyright 2002-2014 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.json;
import org.springframework.integration.mapping.OutboundMessageMapper;
import org.springframework.messaging.Message;
import org.springframework.util.Assert;
/**
* {@link OutboundMessageMapper} implementation the converts a {@link Message} to a JSON string representation.
*
* @author Jeremy Grelle
* @author Mark Fisher
* @author Artem Bilan
* @since 2.0
*/
public class JsonOutboundMessageMapper implements OutboundMessageMapper<String> {
private volatile boolean shouldExtractPayload = false;
private volatile JsonObjectMapper<?, ?> jsonObjectMapper;
public JsonOutboundMessageMapper() {
this(JsonObjectMapperProvider.newInstance());
}
public JsonOutboundMessageMapper(JsonObjectMapper<?, ?> jsonObjectMapper) {
Assert.notNull(jsonObjectMapper, "jsonObjectMapper must not be null");
this.jsonObjectMapper = jsonObjectMapper;
}
public void setShouldExtractPayload(boolean shouldExtractPayload) {
this.shouldExtractPayload = shouldExtractPayload;
}
public String fromMessage(Message<?> message) throws Exception {
return this.jsonObjectMapper.toJson(this.shouldExtractPayload ? message.getPayload() : message);
}
}