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 *  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
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package org.apache.cayenne.remote.hessian;

import org.apache.cayenne.DataRow;
import org.apache.cayenne.util.PersistentObjectList;
import org.apache.cayenne.util.PersistentObjectMap;

import com.caucho.hessian.io.AbstractSerializerFactory;
import com.caucho.hessian.io.Deserializer;
import com.caucho.hessian.io.HessianProtocolException;
import com.caucho.hessian.io.JavaDeserializer;
import com.caucho.hessian.io.Serializer;

/**
 * An object that manages all custom (de)serializers used on the client.
 * 
 * @since 1.2
 */
public class ClientSerializerFactory extends AbstractSerializerFactory {

    private Deserializer dataRowDeserializer;
    private Deserializer listDeserializer;
    private Deserializer mapDeserializer;

    @Override
    public Serializer getSerializer(Class cl) throws HessianProtocolException {
        return null;
    }

    @Override
    public Deserializer getDeserializer(Class cl) throws HessianProtocolException {
        //turns out Hessian uses its own (incorrect) serialization mechanism for maps
        if (PersistentObjectMap.class.isAssignableFrom(cl)) {
            if (mapDeserializer == null) {
                mapDeserializer = new JavaDeserializer(cl);
            }
            return mapDeserializer;
        }
        
        if (PersistentObjectList.class.isAssignableFrom(cl)) {
            if (listDeserializer == null) {
                listDeserializer = new JavaDeserializer(cl);
            }
            return listDeserializer;
        }
        
        if(DataRow.class.isAssignableFrom(cl)) {
            if(dataRowDeserializer == null) {
                dataRowDeserializer = new DataRowDeserializer();
            }
            
            return dataRowDeserializer;
        }

        return null;
    }
}