/*
 * JORAM: Java(TM) Open Reliable Asynchronous Messaging
 * Copyright (C) 2001 - 2020 ScalAgent Distributed Technologies
 * Copyright (C) 1996 - 2000 Dyade
 *
 * 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 2.1 of the License, or 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.
 *
 * Initial developer(s): Frederic Maistre (INRIA)
 * Contributor(s): ScalAgent Distributed Technologies
 */
package org.objectweb.joram.shared.admin;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import fr.dyade.aaa.common.stream.StreamUtil;

/** 
 * A <code>SetFather</code> instance is used for linking two topics in a
 * hierarchical relationship.
 */
public class SetFather extends DestinationAdminRequest {

  private static final long serialVersionUID = 1L;

  /** Identifier of the father. */
  private String father;

  /**
   * Constructs a <code>SetFather</code> instance.
   *
   * @param father  Identifier of the father.
   * @param son  Identifier of the son.
   */
  public SetFather(String father, String son) {
    super(son);
    this.father = father;
  }

  public SetFather() { }
  
  /**
   * Returns the identifier of the father.
   * 
   * @return Identifier of the father.
   */
  public String getFather() {
    return father;
  }

  protected int getClassId() {
    return SET_FATHER;
  }
  
  public void readFrom(InputStream is) throws IOException {
    father = StreamUtil.readStringFrom(is);
    super.readFrom(is);
  }

  public void writeTo(OutputStream os) throws IOException {
    StreamUtil.writeTo(father, os);
    super.writeTo(os);
  }
}
