AcknowledgmentMsg.java

/**
*    Copyright (c) 2011-2014, OpenIoT
*   
*    This file is part of OpenIoT.
*
*    OpenIoT 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, version 3 of the License.
*
*    OpenIoT 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 OpenIoT.  If not, see <http://www.gnu.org/licenses/>.
*
*     Contact: OpenIoT mailto: info@openiot.eu
 * @author Ali Salehi
*/

package org.openiot.gsn.acquisition2.messages;
/**
 * Represents Ack (success) and Nack (failure) messages.
 */
public class AcknowledgmentMsg extends AbstractMessage {
  
  private static final long serialVersionUID = 3096327899834535287L;

  public static transient final int SUCCESS = 1;  
  public static transient final int FAILURE = 2;
  
  private long seqNumber = -1;
  
  private int value = -1;
  
  public boolean isAck() {
    return value == SUCCESS;
  }
  
  public boolean isNack() {
    return value == FAILURE;
  }

  public int getValue() {
    return value;
  }

  public void setValue(int value) {
    this.value = value;
  }

  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + value;
    return result;
  }

  public boolean equals(Object obj) {
    if (this == obj)
      return true;
    if (obj == null)
      return false;
    if (getClass() != obj.getClass())
      return false;
    final AcknowledgmentMsg other = (AcknowledgmentMsg) obj;
    if (value != other.value)
      return false;
    return true;
  }

  public AcknowledgmentMsg(int messageType,long seqNo) {
    this.value = messageType;
    this.seqNumber=seqNo;
  }
  
  public AcknowledgmentMsg(int messageType) {
    this.value = messageType;
  }

  public long getSeqNumber() {
    return seqNumber;
  }
  
 
}