org.objectweb.dream.protocol.rpc.InvocationChunk 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): Matthieu Leclercq
 * Contributor(s): 
 */

package org.objectweb.dream.protocol.rpc;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;

import org.objectweb.dream.message.AbstractChunk;
import org.objectweb.dream.util.Util;

public final class InvocationChunk extends AbstractChunk
{
  private static final long serialVersionUID = 6117081492117202644L;
  /** The default name of chunks of this type. */
  public static final String   DEFAULT_NAME       = "invocation_chunk";
  /** A constant empty object array. */
  public static final Object[] EMPTY_OBJECT_ARRAY = new Object[0];

  private long                 invocationId;
  private int                  methodId;
  private Object[]             parameters;

  // ---------------------------------------------------------------------------
  // Chunk methods
  // ---------------------------------------------------------------------------

  /**
   * @return Returns the invocationId.
   */
  public long getInvocationId()
  {
    return invocationId;
  }

  /**
   * @param invocationId The invocationId to set.
   */
  public void setInvocationId(long invocationId)
  {
    this.invocationId = invocationId;
  }

  /**
   * @return Returns the methodId.
   */
  public int getMethodId()
  {
    return methodId;
  }

  /**
   * @param methodId The methodId to set.
   */
  public void setMethodId(int methodId)
  {
    this.methodId = methodId;
  }

  /**
   * @return Returns the parameters.
   */
  public Object[] getParameters()
  {
    return parameters;
  }

  /**
   * @param parameters The parameters to set.
   */
  public void setParameters(Object[] parameters)
  {
    this.parameters = parameters;
  }

  // ---------------------------------------------------------------------------
  // Implementation of the Chunk interface
  // ---------------------------------------------------------------------------

  /**
   * @see AbstractChunk#newChunk()
   */
  public InvocationChunk newChunk()
  {
    return new InvocationChunk();
  }

  /**
   * @see AbstractChunk#transfertStateTo(AbstractChunk)
   */
  public void transfertStateTo(InvocationChunk chunk)
  {
    chunk.invocationId = invocationId;
    chunk.methodId = methodId;
    chunk.parameters = parameters; // TODO clone array ?
  }

  /**
   * @see org.objectweb.dream.pool.Recyclable#recycle()
   */
  public void recycle()
  {
    invocationId = 0;
    methodId = 0;
    parameters = null;
  }

  // ---------------------------------------------------------------------------
  // Implementation of the Externalizable interface
  // ---------------------------------------------------------------------------

  /**
   * @see java.io.Externalizable#readExternal(ObjectInput)
   */
  public void readExternal(ObjectInput in) throws IOException,
      ClassNotFoundException
  {
    invocationId = in.readLong();
    methodId = in.readInt();
    parameters = Util.readExternalObjectArray(in);
  }

  /**
   * @see java.io.Externalizable#writeExternal(ObjectOutput)
   */
  public void writeExternal(ObjectOutput out) throws IOException
  {
    out.writeLong(invocationId);
    out.writeInt(methodId);
    Util.writeExternalObjectArray(out, parameters);
  }

}