/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cayenne.remote.hessian;
import java.util.HashMap;
import com.caucho.hessian.io.AbstractSerializerFactory;
import com.caucho.hessian.io.Deserializer;
import com.caucho.hessian.io.HessianProtocolException;
import com.caucho.hessian.io.Serializer;
/**
* A Hessian SerializerFactory extension that supports serializing Enums.
* <p>
* <i>Requires Java 1.5 or newer</i>
* </p>
*
* @since 1.2
* @author Andrus Adamchik
*/
class EnumSerializerFactory extends AbstractSerializerFactory {
private final EnumSerializer enumSerializer = new EnumSerializer();
private HashMap<Class, Deserializer> cachedDeserializerMap;
@Override
public Serializer getSerializer(Class cl) throws HessianProtocolException {
return (cl.isEnum()) ? enumSerializer : null;
}
@Override
public Deserializer getDeserializer(Class cl) throws HessianProtocolException {
if (cl.isEnum()) {
Deserializer deserializer = null;
synchronized (this) {
if (cachedDeserializerMap != null) {
deserializer = cachedDeserializerMap.get(cl);
}
if (deserializer == null) {
deserializer = new EnumDeserializer(cl);
if (cachedDeserializerMap == null) {
cachedDeserializerMap = new HashMap<Class, Deserializer>();
}
cachedDeserializerMap.put(cl, deserializer);
}
}
return deserializer;
}
return null;
}
}