IndirectMapCodec.java

/**
 *   GRANITE DATA SERVICES
 *   Copyright (C) 2006-2015 GRANITE DATA SERVICES S.A.S.
 *
 *   This file is part of the Granite Data Services Platform.
 *
 *   Granite Data Services is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Lesser General Public
 *   License as published by the Free Software Foundation; either
 *   version 2.1 of the License, or (at your option) any later version.
 *
 *   Granite Data Services is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
 *   General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
 *   USA, or see <http://www.gnu.org/licenses/>.
 */
package org.granite.eclipselink.jmf;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;

import org.eclipse.persistence.indirection.IndirectMap;
import org.granite.messaging.jmf.ExtendedObjectInput;
import org.granite.messaging.jmf.persistence.JMFPersistentCollectionSnapshot;
import org.granite.messaging.persistence.PersistentCollectionSnapshot;

/**
 * @author Franck WOLFF
 */
public class IndirectMapCodec extends AbstractPersistentCollectionCodec<IndirectMap> {

	public IndirectMapCodec() {
		super(IndirectMap.class);
	}

	public IndirectMap newInstance(ExtendedObjectInput in, String className)
			throws IOException, ClassNotFoundException, InstantiationException,
			IllegalAccessException, InvocationTargetException,
			SecurityException, NoSuchMethodException {
		
		PersistentCollectionSnapshot snapshot = new JMFPersistentCollectionSnapshot(null);
		snapshot.readInitializationData(in);
		
		if (snapshot.isInitialized())
			return new IndirectMap(new HashMap<Object, Object>());
		
		IndirectMap collection = new IndirectMap();
		collection.setValueHolder(new UninstantiatedValueHolder());
		return collection;
	}
}