/*
* Copyright 2015-2016 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.codec.kryo;
import java.util.HashMap;
import java.util.Map;
import org.springframework.messaging.MessageHeaders;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
/**
* Kryo Serializer for {@link MessageHeaders}.
* @author David Turanski
* @since 4.2
*/
class MessageHeadersSerializer extends Serializer<MessageHeaders> {
@Override
public void write(Kryo kryo, Output output, MessageHeaders headers) {
HashMap<String, Object> map = new HashMap<String, Object>();
for (Map.Entry<String, Object> entry : headers.entrySet()) {
if (entry.getValue() != null) {
map.put(entry.getKey(), entry.getValue());
}
}
kryo.writeObject(output, map);
}
@Override
public MessageHeaders read(Kryo kryo, Input input, Class<MessageHeaders> type) {
@SuppressWarnings("unchecked")
Map<String, Object> headers = kryo.readObject(input, HashMap.class);
return new MessageHeaders(headers);
}
}