org.springframework.integration.support.json.MessageHeadersJacksonSerializer Maven / Gradle / Ivy
/*
* Copyright 2017-2019 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.integration.support.json;
import java.io.IOException;
import java.util.HashMap;
import org.springframework.messaging.MessageHeaders;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
/**
* A Jackson {@link StdSerializer} implementation to serialize {@link MessageHeaders}
* as a {@link HashMap}.
*
* This technique is much reliable during deserialization, especially when the
* {@code typeId} property is used to store the type.
*
* @author Artem Bilan
*
* @since 4.3.10
*/
public class MessageHeadersJacksonSerializer extends StdSerializer {
private static final long serialVersionUID = 1L;
public MessageHeadersJacksonSerializer() {
super(MessageHeaders.class);
}
@Override
public void serializeWithType(MessageHeaders value, JsonGenerator gen, SerializerProvider serializers,
TypeSerializer typeSer) throws IOException {
serialize(value, gen, serializers);
}
@Override
public void serialize(MessageHeaders value, JsonGenerator gen, SerializerProvider provider) throws IOException {
gen.writeObject(new HashMap(value));
}
}