/*
|
* 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 legal-notices/CDDLv1_0.txt
|
* or http://forgerock.org/license/CDDLv1.0.html.
|
* 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 legal-notices/CDDLv1_0.txt.
|
* 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 2008-2009 Sun Microsystems, Inc.
|
* Portions copyright 2013-2014 ForgeRock AS.
|
*/
|
package org.opends.server.replication.protocol;
|
|
import java.io.UnsupportedEncodingException;
|
import java.util.zip.DataFormatException;
|
|
/**
|
* This message is part of the replication protocol. RS1 sends a
|
* MonitorRequestMsg to RS2 to request its monitoring information. When RS2
|
* receives a MonitorRequestMsg from RS1, RS2 responds with a MonitorMessage.
|
*/
|
public class MonitorRequestMsg extends ReplicationMsg
|
{
|
/**
|
* The destination server or servers of this message.
|
*/
|
private final int destination;
|
|
/**
|
* The serverID of the server that sends this message.
|
*/
|
private final int senderID;
|
|
|
|
/**
|
* Creates a message.
|
*
|
* @param serverID
|
* The sender server of this message.
|
* @param destination
|
* The server or servers targeted by this message.
|
*/
|
public MonitorRequestMsg(int serverID, int destination)
|
{
|
this.senderID = serverID;
|
this.destination = destination;
|
}
|
|
/**
|
* Creates a new message by decoding the provided byte array.
|
*
|
* @param in
|
* A byte array containing the encoded information for the message,
|
* @throws DataFormatException
|
* If the in does not contain a properly, encoded message.
|
*/
|
public MonitorRequestMsg(byte[] in) throws DataFormatException
|
{
|
try
|
{
|
// First byte is the type
|
if (in[0] != MSG_TYPE_REPL_SERVER_MONITOR_REQUEST)
|
throw new DataFormatException("input is not a valid "
|
+ this.getClass().getCanonicalName());
|
int pos = 1;
|
|
// sender
|
int length = getNextLength(in, pos);
|
String senderString = new String(in, pos, length, "UTF-8");
|
this.senderID = Integer.valueOf(senderString);
|
pos += length + 1;
|
|
// destination
|
length = getNextLength(in, pos);
|
String destinationString = new String(in, pos, length, "UTF-8");
|
this.destination = Integer.valueOf(destinationString);
|
pos += length + 1;
|
|
}
|
catch (UnsupportedEncodingException e)
|
{
|
throw new DataFormatException("UTF-8 is not supported by this jvm.");
|
}
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public byte[] getBytes(short protocolVersion)
|
{
|
try
|
{
|
byte[] senderBytes = String.valueOf(senderID).getBytes("UTF-8");
|
byte[] destinationBytes = String.valueOf(destination).getBytes("UTF-8");
|
|
int length = 1 + senderBytes.length + 1 + destinationBytes.length + 1;
|
|
byte[] resultByteArray = new byte[length];
|
|
/* put the type of the operation */
|
resultByteArray[0] = MSG_TYPE_REPL_SERVER_MONITOR_REQUEST;
|
int pos = 1;
|
|
/* put the sender */
|
pos = addByteArray(senderBytes, resultByteArray, pos);
|
|
/* put the destination */
|
pos = addByteArray(destinationBytes, resultByteArray, pos);
|
|
return resultByteArray;
|
}
|
catch (UnsupportedEncodingException e)
|
{
|
return null;
|
}
|
}
|
|
|
|
/**
|
* Get the destination.
|
*
|
* @return the destination
|
*/
|
public int getDestination()
|
{
|
return destination;
|
}
|
|
|
|
/**
|
* Get the server ID of the server that sent this message.
|
*
|
* @return the server id
|
*/
|
public int getSenderID()
|
{
|
return senderID;
|
}
|
|
|
|
/**
|
* Returns a string representation of the message.
|
*
|
* @return the string representation of this message.
|
*/
|
public String toString()
|
{
|
return "[" + getClass().getCanonicalName() + " sender=" + senderID
|
+ " destination=" + destination + "]";
|
}
|
}
|
