001    /*
002     * Copyright (c) 2005 Einar Pehrson <einar@pehrson.nu>.
003     *
004     * This file is part of
005     * CleanSheets - a spreadsheet application for the Java platform.
006     *
007     * CleanSheets is free software; you can redistribute it and/or modify
008     * it under the terms of the GNU General Public License as published by
009     * the Free Software Foundation; either version 2 of the License, or
010     * (at your option) any later version.
011     *
012     * CleanSheets 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
015     * GNU General Public License for more details.
016     *
017     * You should have received a copy of the GNU General Public License
018     * along with CleanSheets; if not, write to the Free Software
019     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
020     */
021    package csheets.io;
022    
023    import java.io.IOException;
024    import java.io.InputStream;
025    import java.io.ObjectInputStream;
026    import java.io.ObjectOutputStream;
027    import java.io.OutputStream;
028    
029    import csheets.core.Workbook;
030    import csheets.ext.ExtensionManager;
031    
032    /**
033     * A codec for the native CleanSheets format that uses Java Serialization.
034     * @author Einar Pehrson
035     */
036    public class CLSCodec implements Codec {
037    
038            /**
039             * Creates a new CleanSheets codec.
040             */
041            public CLSCodec() {}
042    
043            public Workbook read(InputStream stream) throws IOException, ClassNotFoundException {
044                    ObjectInputStream ois = new DynamicObjectInputStream(stream,
045                            ExtensionManager.getInstance().getLoader());
046                    return (Workbook)ois.readObject();
047            }
048    
049            public void write(Workbook workbook, OutputStream stream) throws IOException {
050                    ObjectOutputStream oos = new ObjectOutputStream(stream);
051                    oos.writeObject(workbook);
052                    oos.flush();
053            }
054    }