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This OSGi bundle wraps org.restlet, and com.noelios.restlet ${pkgVersion} jar files.
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/**
 * Copyright 2005-2008 Noelios Technologies.
 * 
 * The contents of this file are subject to the terms of the following open
 * source licenses: LGPL 3.0 or LGPL 2.1 or CDDL 1.0 (the "Licenses"). You can
 * select the license that you prefer but you may not use this file except in
 * compliance with one of these Licenses.
 * 
 * You can obtain a copy of the LGPL 3.0 license at
 * http://www.gnu.org/licenses/lgpl-3.0.html
 * 
 * You can obtain a copy of the LGPL 2.1 license at
 * http://www.gnu.org/licenses/lgpl-2.1.html
 * 
 * You can obtain a copy of the CDDL 1.0 license at
 * http://www.sun.com/cddl/cddl.html
 * 
 * See the Licenses for the specific language governing permissions and
 * limitations under the Licenses.
 * 
 * Alternatively, you can obtain a royaltee free commercial license with less
 * limitations, transferable or non-transferable, directly at
 * http://www.noelios.com/products/restlet-engine
 * 
 * Restlet is a registered trademark of Noelios Technologies.
 */

package org.restlet.resource;

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

import org.restlet.data.MediaType;

/**
 * Representation based on a serializable Java object.
 * 
 * @author Jerome Louvel
 * @param 
 *            The class to serialize, see {@link Serializable}
 */
public class ObjectRepresentation extends
        OutputRepresentation {
    /** The serializable object. */
    private volatile T object;

    /**
     * Constructor reading the object from a serialized representation. This
     * representation must have the proper media type:
     * "application/x-java-serialized-object".
     * 
     * @param serializedRepresentation
     *            The serialized representation.
     * @throws IOException
     * @throws ClassNotFoundException
     * @throws IllegalArgumentException
     */
    @SuppressWarnings("unchecked")
    public ObjectRepresentation(Representation serializedRepresentation)
            throws IOException, ClassNotFoundException,
            IllegalArgumentException {
        super(MediaType.APPLICATION_JAVA_OBJECT);
        if (serializedRepresentation.getMediaType().equals(
                MediaType.APPLICATION_JAVA_OBJECT)) {
            final ObjectInputStream ois = new ObjectInputStream(
                    serializedRepresentation.getStream());
            this.object = (T) ois.readObject();
            ois.close();
        } else {
            throw new IllegalArgumentException(
                    "The serialized representation must have this media type: "
                            + MediaType.APPLICATION_JAVA_OBJECT.toString());
        }
    }

    /**
     * Constructor
     * 
     * @param object
     *            The serializable object.
     */
    public ObjectRepresentation(T object) {
        super(MediaType.APPLICATION_JAVA_OBJECT);
        this.object = object;
    }

    /**
     * Returns the represented object.
     * 
     * @return The represented object.
     * @throws IOException
     */
    public T getObject() throws IOException {
        return this.object;
    }

    /**
     * Releases the represented object.
     */
    @Override
    public void release() {
        setObject(null);
        super.release();
    }

    /**
     * Sets the represented object.
     * 
     * @param object
     *            The represented object.
     */
    public void setObject(T object) {
        this.object = object;
    }

    @Override
    public void write(OutputStream outputStream) throws IOException {
        final ObjectOutputStream oos = new ObjectOutputStream(outputStream);
        oos.writeObject(getObject());
        oos.flush();
    }

}