org.objectweb.dream.serializator.DeSerializator Maven / Gradle / Ivy

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/**
 * Dream
 * Copyright (C) 2003-2004 INRIA Rhone-Alpes
 *
 * This library 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 of the License, or (at your option) any later version.
 *
 * This library 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact: [email protected]
 *
 * Initial developer(s): Vivien Quema
 * Contributor(s): 
 */

package org.objectweb.dream.serializator;

import java.io.ByteArrayInputStream;
import java.io.IOException;

import org.objectweb.dream.message.Message;
import org.objectweb.dream.message.codec.CodecInputOutput;
import org.objectweb.dream.message.codec.MessageCodec;
import org.objectweb.dream.pool.ObjectPoolItf;
import org.objectweb.dream.pool.Recyclable;
import org.objectweb.dream.pool.RecyclableFactoryType;
import org.objectweb.dream.dreamannotation.DreamComponent;
import org.objectweb.dream.dreamannotation.DreamMonolog;
import org.objectweb.fractal.api.Component;
import org.objectweb.fractal.fraclet.annotation.annotations.Interface;
import org.objectweb.fractal.fraclet.annotation.annotations.Provides;
import org.objectweb.fractal.fraclet.annotation.annotations.Requires;
import org.objectweb.fractal.fraclet.annotation.annotations.Service;
import org.objectweb.util.monolog.api.BasicLevel;
import org.objectweb.util.monolog.api.Logger;

/**
 * Basic implementation of the {@link DeSerializatorItf}interface.
 */
@DreamComponent(controllerDesc = "dreamUnstoppablePrimitive")
@Provides(interfaces = {@Interface(name = "recyclable-factory", signature = RecyclableFactoryType.class)})
public class DeSerializator
    implements
      DeSerializatorItf,
      RecyclableFactoryType
{

  // ---------------------------------------------------------------------------
  // Client interfaces
  // ---------------------------------------------------------------------------
  @Requires(name = "message-codec")
  protected MessageCodec  messageCodecItf;
  @Requires(name = "object-pool")
  protected ObjectPoolItf objectPoolItf;

  // --------------------------------------------------------------------------
  // Services interfaces
  // --------------------------------------------------------------------------

  /**
   * Component reference
   */
  @Service
  Component               weaveableC;

  /**
   * Logger of the component
   */
  @DreamMonolog()
  protected Logger        logger;

  // ---------------------------------------------------------------------------
  // Implementation of the SerializatorItf interface
  // ---------------------------------------------------------------------------

  /**
   * @see DeSerializatorItf#deserialize(byte[])
   */
  public Message deserialize(byte[] byteArray) throws IOException
  {
    CodecInputOutput codecInputOutput = (CodecInputOutput) objectPoolItf
        .newInstance();
    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(
        byteArray);
    codecInputOutput.setInput(byteArrayInputStream);
    logger.log(BasicLevel.DEBUG, "read message");
    Message message = messageCodecItf.decode(codecInputOutput);
    objectPoolItf.recycleInstance((Recyclable) codecInputOutput);
    return message;
  }

  // ---------------------------------------------------------------------------
  // Implementation of the RecyclableFactory interface
  // ---------------------------------------------------------------------------

  /**
   * @see org.objectweb.dream.pool.RecyclableFactoryType#newInstance()
   */
  public Recyclable newInstance()
  {
    return new CodecInputOutputByteArray();
  }
}