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