/*
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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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* Portions Copyright 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.replication.protocol;
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import java.io.Serializable;
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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 one or several servers as the
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* first message of an export, before sending the entries.
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*/
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public class InitializeTargetMessage extends RoutableMessage implements
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Serializable
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{
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private static final long serialVersionUID = -2122460559739139735L;
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private String baseDN = null;
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// Specifies the number of entries expected to be exported.
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private long entryCount;
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// Specifies the serverID of the server that requested this export
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// to happen. It allows a server that previously sent an
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// InitializeRequestMessage to know that the current message
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// is related to its own request.
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private short requestorID;
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/**
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* Creates a InitializeDestinationMessage.
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*
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* @param baseDN The base DN for which the InitializeMessage is created.
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* @param senderID The serverID of the server that sends this message.
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* @param destination The destination of this message.
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* @param requestorID The server that initiates this export.
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* @param entryCount The count of entries that will be sent.
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*/
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public InitializeTargetMessage(DN baseDN, short senderID,
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short destination, short requestorID, long entryCount)
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{
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super(senderID, destination);
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this.requestorID = requestorID;
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this.baseDN = baseDN.toNormalizedString();
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this.entryCount = entryCount;
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}
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/**
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* Creates an InitializeTargetMessage 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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* @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 InitializeTargetMessage(byte[] in) 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_TARGET)
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throw new DataFormatException(
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"input is not a valid InitializeDestinationMessage");
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int pos = 1;
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// destination
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int length = getNextLength(in, pos);
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String destinationString = new String(in, pos, length, "UTF-8");
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this.destination = Short.valueOf(destinationString);
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pos += length +1;
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// baseDn
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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 senderString = new String(in, pos, length, "UTF-8");
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senderID = Short.valueOf(senderString);
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pos += length +1;
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// requestor
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length = getNextLength(in, pos);
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String requestorString = new String(in, pos, length, "UTF-8");
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requestorID = Short.valueOf(requestorString);
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pos += length +1;
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// entryCount
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length = getNextLength(in, pos);
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String entryCountString = new String(in, pos, length, "UTF-8");
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entryCount = Long.valueOf(entryCountString);
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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 number of entries expected to be sent during the export.
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* @return the entry count
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*/
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public long getEntryCount()
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{
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return this.entryCount;
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}
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/**
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* Get the serverID of the server that initiated the export.
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* @return the serverID
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*/
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public long getRequestorID()
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{
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return this.requestorID;
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}
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/**
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* Get the base DN of the domain.
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*
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* @return the base DN
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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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* {@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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try
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{
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byte[] byteDestination = String.valueOf(destination).getBytes("UTF-8");
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byte[] byteDn = baseDN.getBytes("UTF-8");
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byte[] byteSender = String.valueOf(senderID).getBytes("UTF-8");
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byte[] byteRequestor = String.valueOf(requestorID).getBytes("UTF-8");
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byte[] byteEntryCount = String.valueOf(entryCount).getBytes("UTF-8");
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int length = 1 + byteDestination.length + 1
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+ byteDn.length + 1
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+ byteSender.length + 1
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+ byteRequestor.length + 1
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+ byteEntryCount.length + 1;
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byte[] resultByteArray = new byte[length];
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/* put the type of the operation */
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resultByteArray[0] = MSG_TYPE_INITIALIZE_TARGET;
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int pos = 1;
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/* put the destination */
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pos = addByteArray(byteDestination, resultByteArray, pos);
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/* put the baseDN and a terminating 0 */
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pos = addByteArray(byteDn, resultByteArray, pos);
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/* put the sender */
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pos = addByteArray(byteSender, resultByteArray, pos);
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/* put the requestorID */
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pos = addByteArray(byteRequestor, resultByteArray, pos);
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/* put the entryCount */
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pos = addByteArray(byteEntryCount, resultByteArray, pos);
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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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