/*
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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 2006-2010 Sun Microsystems, Inc.
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*/
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package org.opends.server.replication.protocol;
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import java.io.UnsupportedEncodingException;
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import java.util.zip.DataFormatException;
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import org.opends.server.types.DN;
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import org.opends.server.types.DirectoryException;
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/**
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* This message is part of the replication protocol.
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* This message is sent by a server to another server in order to
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* request this other server to do an export to the server sender
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* of this message.
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*/
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public class InitializeRequestMsg extends RoutableMsg
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{
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private String baseDn = null;
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private int initWindow = 0;
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/**
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* Creates a InitializeRequestMsg message.
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*
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* @param baseDn the base DN of the replication domain.
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* @param destination destination of this message
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* @param serverID serverID of the server that will send this message
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* @param initWindow initialization window for flow control
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*/
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public InitializeRequestMsg(String baseDn, int serverID, int destination,
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int initWindow)
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{
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super(serverID, destination);
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this.baseDn = baseDn;
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this.initWindow = initWindow; // V4
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}
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/**
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* Creates a new InitializeRequestMsg by decoding the provided byte array.
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* @param in A byte array containing the encoded information for the Message
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* @param version The protocol version to use to decode the msg
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* @throws DataFormatException If the in does not contain a properly
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* encoded InitializeMessage.
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*/
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public InitializeRequestMsg(byte[] in, short version)
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throws DataFormatException
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{
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super();
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try
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{
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/* first byte is the type */
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if (in[0] != MSG_TYPE_INITIALIZE_REQUEST)
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throw new DataFormatException(
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"input is not a valid InitializeRequestMessage");
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int pos = 1;
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// baseDn
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int length = getNextLength(in, pos);
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baseDn = new String(in, pos, length, "UTF-8");
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pos += length +1;
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// sender
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length = getNextLength(in, pos);
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String sourceServerIdString = new String(in, pos, length, "UTF-8");
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senderID = Integer.valueOf(sourceServerIdString);
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pos += length +1;
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// destination
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length = getNextLength(in, pos);
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String destinationServerIdString = new String(in, pos, length, "UTF-8");
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destination = Integer.valueOf(destinationServerIdString);
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pos += length +1;
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if (version >= ProtocolVersion.REPLICATION_PROTOCOL_V4)
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{
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// init window
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length = getNextLength(in, pos);
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String initWindowString = new String(in, pos, length, "UTF-8");
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initWindow = Integer.valueOf(initWindowString);
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pos += length +1;
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}
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} catch (UnsupportedEncodingException e)
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{
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throw new DataFormatException("UTF-8 is not supported by this jvm.");
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}
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}
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/**
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* Get the base DN from this InitializeRequestMsg.
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*
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* @return the base DN from this InitializeRequestMsg.
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*/
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public DN getBaseDn()
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{
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if (baseDn == null)
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return null;
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try
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{
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return DN.decode(baseDn);
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} catch (DirectoryException e)
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{
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return null;
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}
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}
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// ============
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// Msg encoding
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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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throws UnsupportedEncodingException
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{
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return getBytes(ProtocolVersion.getCurrentVersion());
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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(short version)
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{
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try {
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byte[] baseDNBytes = baseDn.getBytes("UTF-8");
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byte[] senderBytes = String.valueOf(senderID).getBytes("UTF-8");
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byte[] destinationBytes = String.valueOf(destination).getBytes("UTF-8");
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byte[] initWindowBytes = null;
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int length = 1 + baseDNBytes.length + 1 + senderBytes.length + 1
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+ destinationBytes.length + 1;
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if (version >= ProtocolVersion.REPLICATION_PROTOCOL_V4)
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{
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initWindowBytes = String.valueOf(initWindow).getBytes("UTF-8");
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length += initWindowBytes.length + 1;
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}
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byte[] resultByteArray = new byte[length];
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// type of the operation
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resultByteArray[0] = MSG_TYPE_INITIALIZE_REQUEST;
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int pos = 1;
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// baseDN
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pos = addByteArray(baseDNBytes, resultByteArray, pos);
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// sender
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pos = addByteArray(senderBytes, resultByteArray, pos);
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// destination
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pos = addByteArray(destinationBytes, resultByteArray, pos);
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if (version >= ProtocolVersion.REPLICATION_PROTOCOL_V4)
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{
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// init window
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pos = addByteArray(initWindowBytes, resultByteArray, pos);
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}
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return resultByteArray;
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}
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catch (UnsupportedEncodingException e)
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{
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return null;
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}
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}
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/**
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* Get a string representation of this object.
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* @return A string representation of this object.
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*/
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public String toString()
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{
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return "InitializeRequestMessage: baseDn="+baseDn+" senderId="+senderID +
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" destination=" + destination + " initWindow=" + initWindow;
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}
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/**
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* Return the initWindow value.
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* @return the initWindow.
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*/
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public int getInitWindow()
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{
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return this.initWindow;
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}
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/**
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* Set the initWindow value.
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* @param initWindow The initialization window.
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*/
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public void setInitWindow(int initWindow)
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{
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this.initWindow = initWindow;
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}
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}
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