/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2008 Sun Microsystems, Inc.
* Portions copyright 2013 ForgeRock AS.
*/
package org.opends.server.replication.protocol;
import java.util.zip.DataFormatException;
import org.opends.server.replication.common.ServerStatus;
/**
* This message is used by the DS to tell the RS he is changing his status
* (new status field used), or by the RS to tell the DS he must change his
* status (requested status field used).
*/
public class ChangeStatusMsg extends ReplicationMsg
{
// The status we want the DS to enter (used when from RS to DS)
private ServerStatus requestedStatus = ServerStatus.INVALID_STATUS;
// The new status the DS just entered (used when from DS to RS)
private ServerStatus newStatus = ServerStatus.INVALID_STATUS;
/**
* Create a new ChangeStatusMsg.
*
* @param requestedStatus The requested status
* @param newStatus The new status
*/
public ChangeStatusMsg(ServerStatus requestedStatus, ServerStatus newStatus)
{
this.requestedStatus = requestedStatus;
this.newStatus = newStatus;
}
/**
* Creates a new ChangeStatusMsg from its encoded form.
*
* @param encodedMsg The byte array containing the encoded form of the
* ChangeStatusMsg.
* @throws DataFormatException If the byte array does not contain a valid
* encoded form of the ChangeStatusMsg.
*/
public ChangeStatusMsg(byte[] encodedMsg) throws DataFormatException
{
/*
* The message is stored in the form:
* <message type><requested status><new status>
*/
/* First byte is the type */
if (encodedMsg[0] != ReplicationMsg.MSG_TYPE_CHANGE_STATUS)
{
throw new DataFormatException("byte[] is not a valid msg");
}
try
{
/* Then the requested status */
requestedStatus = ServerStatus.valueOf(encodedMsg[1]);
/* Then the new status */
newStatus = ServerStatus.valueOf(encodedMsg[2]);
} catch (IllegalArgumentException e)
{
throw new DataFormatException(e.getMessage());
}
}
/**
* {@inheritDoc}
*/
@Override
public byte[] getBytes(short protocolVersion)
{
/*
* The message is stored in the form:
* <message type><requested status><new status>
*/
byte[] encodedMsg = new byte[3];
/* Put the type of the operation */
encodedMsg[0] = ReplicationMsg.MSG_TYPE_CHANGE_STATUS;
/* Put the requested status */
encodedMsg[1] = requestedStatus.getValue();
/* Put the requested status */
encodedMsg[2] = newStatus.getValue();
return encodedMsg;
}
/**
* Get the requested status.
* @return The requested status
*/
public ServerStatus getRequestedStatus()
{
return requestedStatus;
}
/**
* Get the requested status.
* @return The new status
*/
public ServerStatus getNewStatus()
{
return newStatus;
}
/**
* {@inheritDoc}
*/
@Override
public String toString()
{
return "ChangeStatusMsg content:" +
"\nnewStatus: " + newStatus +
"\nrequestedStatus: " + requestedStatus;
}
}