001/**
002 *   GRANITE DATA SERVICES
003 *   Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 *   This file is part of the Granite Data Services Platform.
006 *
007 *   Granite Data Services is free software; you can redistribute it and/or
008 *   modify it under the terms of the GNU Lesser General Public
009 *   License as published by the Free Software Foundation; either
010 *   version 2.1 of the License, or (at your option) any later version.
011 *
012 *   Granite Data Services is distributed in the hope that it will be useful,
013 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
014 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 *   General Public License for more details.
016 *
017 *   You should have received a copy of the GNU Lesser General Public
018 *   License along with this library; if not, write to the Free Software
019 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 *   USA, or see <http://www.gnu.org/licenses/>.
021 */
022package org.granite.collections;
023
024import java.io.Externalizable;
025import java.io.IOException;
026import java.io.ObjectInput;
027import java.io.ObjectOutput;
028import java.util.HashMap;
029import java.util.Map;
030
031/**
032 * @author Franck WOLFF
033 */
034public class BasicMap<K, V> extends HashMap<K, V> implements Externalizable {
035
036    private static final long serialVersionUID = 1L;
037        
038    public BasicMap() {
039        super();
040    }
041
042    public BasicMap(Map<K, V> map) {
043        super(map);
044    }
045
046    @SuppressWarnings("unchecked")
047    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
048        Object[] pairs = (Object[])in.readObject();
049        if (pairs != null) {
050            for (Object pair : pairs)
051                put((K)((Object[])pair)[0], (V)((Object[])pair)[1]);
052        }
053    }
054
055    public void writeExternal(ObjectOutput out) throws IOException {
056        Object[] outObjectArray = new Object[size()];
057
058        int index = 0;
059        for (Map.Entry<K, V> entry : entrySet())
060            outObjectArray[index++] = new Object[]{entry.getKey(), entry.getValue()};
061
062        out.writeObject(outObjectArray);
063    }
064
065    @SuppressWarnings({ "unchecked", "rawtypes" })
066    public static BasicMap<?, ?> newInstance(Map<?, ?> map) {
067        return new BasicMap(map);
068    }
069
070    @Override
071    public String toString() {
072        return getClass().getName() + " " + super.toString();
073    }
074}