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/*
* Fabric3
* Copyright (c) 2009-2011 Metaform Systems
*
* Fabric3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version, with the
* following exception:
*
* Linking this software statically or dynamically with other
* modules is making a combined work based on this software.
* Thus, the terms and conditions of the GNU General Public
* License cover the whole combination.
*
* As a special exception, the copyright holders of this software
* give you permission to link this software with independent
* modules to produce an executable, regardless of the license
* terms of these independent modules, and to copy and distribute
* the resulting executable under terms of your choice, provided
* that you also meet, for each linked independent module, the
* terms and conditions of the license of that module. An
* independent module is a module which is not derived from or
* based on this software. If you modify this software, you may
* extend this exception to your version of the software, but
* you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version.
*
* Fabric3 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 General Public License for more details.
*
* You should have received a copy of the
* GNU General Public License along with Fabric3.
* If not, see .
*/
package org.fabric3.spi.classloader;

import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;

/**
 * A specialized ObjectOutputStream that serializes objects with classloader information so they may be deserialized by {@link
 * MultiClassLoaderObjectInputStream}.
 *
 * @version $Rev: 9763 $ $Date: 2011-01-03 00:48:06 +0000 (Mon, 03 Jan 2011) $
 */
public class MultiClassLoaderObjectOutputStream extends ObjectOutputStream {
    public MultiClassLoaderObjectOutputStream(OutputStream out) throws IOException {
        super(out);
    }

    protected void annotateClass(Class cl) throws IOException {
        if (cl.getClassLoader() instanceof MultiParentClassLoader) {
            // write the classloader id
            String id = ((MultiParentClassLoader) cl.getClassLoader()).getName().toString();
            this.writeByte(id.length());
            writeBytes(id);
        } else {
            // use normal classloader resolution
            this.writeByte(-1);
        }
    }

}