message.java

J2me实现的MSN Messeger客户端程序。聊天、添加好友、删除好友、阻止好友

/*
 * @(#)Message.java
 *
 * Copyright (c) 2001-2002, JangHo Hwang
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 	1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 	2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
 * 	3. Neither the name of the JangHo Hwang nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *    $Id: Message.java,v 2.0 2004/12/21 16:15:08 chenzs Exp $
 */
package vitular.msnp.msg;

import vitular.msnp.entity.Callback;
import vitular.msnp.util.StringList;
import vitular.msnp.util.Stringator;

/**
 *
 * @author Jang-Ho Hwang, [e-mail]
 * @version $Id: Message.java,v 2.0 2004/12/21 16:15:08 chenzs Exp $
 */
public abstract class Message {
  private String header = null;
  private int trId = -1;
  private Callback callback = null;

  protected StringList list = null;

  protected Message(String header) {
    this.header = header;
    this.list = new StringList();
  }

  public int getTransactionId() {
    return this.trId;
  }

  public void setTransactionId(int id) {
    this.trId = id;
  }

  public int size() {
    return list.size();
  }

  public String get(int index) {
    return list.get(index);
  }

  public int getInt(int index) {
    return list.getInteger(index);
  }

  public String getHeader() {
    return this.header;
  }

  public void setBackProcess(Callback callback) {
    this.callback = callback;
  }

  public Callback getBackProcess() {
    return this.callback;
  }

  /**
   * �� �޽��� MSN Messenger���� �ν��� �� �ִ�
   * ������ String8�� ��ȯ���ش�.
   */
  public String toString() {
    StringBuffer sb = new StringBuffer();
    sb.append(header);
    if (trId != -1) {
      sb.append(' ');
      sb.append(trId);
    }

    if (list.size() != 0) {
      Stringator strAtor = list.iterator();
      while (strAtor.hasNext()) {
        sb.append(' ');
        sb.append(strAtor.next());
      }
    }
    return sb.toString();
  }
}