001/* 002 * The contents of this file are subject to the terms of the Common Development and 003 * Distribution License (the License). You may not use this file except in compliance with the 004 * License. 005 * 006 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the 007 * specific language governing permission and limitations under the License. 008 * 009 * When distributing Covered Software, include this CDDL Header Notice in each file and include 010 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL 011 * Header, with the fields enclosed by brackets [] replaced by your own identifying 012 * information: "Portions Copyright [year] [name of copyright owner]". 013 * 014 * Copyright 2008-2009 Sun Microsystems, Inc. 015 * Portions copyright 2013-2014 ForgeRock AS. 016 */ 017package org.opends.server.replication.protocol; 018 019import java.util.zip.DataFormatException; 020 021/** 022 * This message is part of the replication protocol. RS1 sends a 023 * MonitorRequestMsg to RS2 to request its monitoring information. When RS2 024 * receives a MonitorRequestMsg from RS1, RS2 responds with a MonitorMessage. 025 */ 026public class MonitorRequestMsg extends ReplicationMsg 027{ 028 /** 029 * The destination server or servers of this message. 030 */ 031 private final int destination; 032 033 /** 034 * The serverID of the server that sends this message. 035 */ 036 private final int senderID; 037 038 /** 039 * Creates a message. 040 * 041 * @param serverID 042 * The sender server of this message. 043 * @param destination 044 * The server or servers targeted by this message. 045 */ 046 public MonitorRequestMsg(int serverID, int destination) 047 { 048 this.senderID = serverID; 049 this.destination = destination; 050 } 051 052 053 054 /** 055 * Creates a new message by decoding the provided byte array. 056 * 057 * @param in 058 * A byte array containing the encoded information for the message, 059 * @throws DataFormatException 060 * If the in does not contain a properly, encoded message. 061 */ 062 MonitorRequestMsg(byte[] in) throws DataFormatException 063 { 064 final ByteArrayScanner scanner = new ByteArrayScanner(in); 065 final byte msgType = scanner.nextByte(); 066 if (msgType != MSG_TYPE_REPL_SERVER_MONITOR_REQUEST) 067 { 068 throw new DataFormatException("input is not a valid " 069 + getClass().getCanonicalName()); 070 } 071 this.senderID = scanner.nextIntUTF8(); 072 this.destination = scanner.nextIntUTF8(); 073 } 074 075 /** {@inheritDoc} */ 076 @Override 077 public byte[] getBytes(short protocolVersion) 078 { 079 final ByteArrayBuilder builder = new ByteArrayBuilder(); 080 builder.appendByte(MSG_TYPE_REPL_SERVER_MONITOR_REQUEST); 081 builder.appendIntUTF8(senderID); 082 builder.appendIntUTF8(destination); 083 return builder.toByteArray(); 084 } 085 086 /** 087 * Get the destination. 088 * 089 * @return the destination 090 */ 091 public int getDestination() 092 { 093 return destination; 094 } 095 096 /** 097 * Get the server ID of the server that sent this message. 098 * 099 * @return the server id 100 */ 101 public int getSenderID() 102 { 103 return senderID; 104 } 105 106 /** 107 * Returns a string representation of the message. 108 * 109 * @return the string representation of this message. 110 */ 111 @Override 112 public String toString() 113 { 114 return "[" + getClass().getCanonicalName() + " sender=" + senderID 115 + " destination=" + destination + "]"; 116 } 117}