/*
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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.replication.common.ServerState;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.DN;
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/**
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* Message sent by a replication server to another replication server
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* at Startup.
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*/
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public class ReplServerStartMessage extends StartMessage implements
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Serializable
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{
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private static final long serialVersionUID = -5871385537169856856L;
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private short serverId;
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private String serverURL;
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private String baseDn = null;
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private int windowSize;
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private ServerState serverState;
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/**
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* Whether to continue using SSL to encrypt messages after the start
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* messages have been exchanged.
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*/
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private boolean sslEncryption;
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/**
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* Create a ReplServerStartMessage.
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*
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* @param serverId replication server id
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* @param serverURL replication server URL
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* @param baseDn base DN for which the ReplServerStartMessage is created.
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* @param windowSize The window size.
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* @param serverState our ServerState for this baseDn.
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* @param protocolVersion The replication protocol version of the creator.
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* @param generationId The generationId for this server.
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* @param sslEncryption Whether to continue using SSL to encrypt messages
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* after the start messages have been exchanged.
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*/
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public ReplServerStartMessage(short serverId, String serverURL, DN baseDn,
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int windowSize,
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ServerState serverState,
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short protocolVersion,
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long generationId,
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boolean sslEncryption)
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{
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super(protocolVersion, generationId);
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this.serverId = serverId;
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this.serverURL = serverURL;
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if (baseDn != null)
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this.baseDn = baseDn.toNormalizedString();
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else
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this.baseDn = null;
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this.windowSize = windowSize;
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this.serverState = serverState;
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this.sslEncryption = sslEncryption;
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}
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/**
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* Creates a new ReplServerStartMessage by decoding the provided byte array.
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* @param in A byte array containing the encoded information for the
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* ReplServerStartMessage
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* @throws DataFormatException If the in does not contain a properly
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* encoded ReplServerStartMessage.
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*/
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public ReplServerStartMessage(byte[] in) throws DataFormatException
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{
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/* The ReplServerStartMessage is encoded in the form :
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* <baseDn><ServerId><ServerUrl><windowsize><ServerState>
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*/
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super(MSG_TYPE_REPL_SERVER_START, in);
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try
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{
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/* first bytes are the header */
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int pos = headerLength;
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/* read the dn
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* first calculate the length then construct the string
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*/
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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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/*
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* read the ServerId
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*/
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length = getNextLength(in, pos);
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String serverIdString = new String(in, pos, length, "UTF-8");
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serverId = Short.valueOf(serverIdString);
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pos += length +1;
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/*
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* read the ServerURL
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*/
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length = getNextLength(in, pos);
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serverURL = new String(in, pos, length, "UTF-8");
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pos += length +1;
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/*
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* read the window size
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*/
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length = getNextLength(in, pos);
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windowSize = Integer.valueOf(new String(in, pos, length, "UTF-8"));
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pos += length +1;
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/*
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* read the sslEncryption setting
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*/
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length = getNextLength(in, pos);
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sslEncryption = Boolean.valueOf(new String(in, pos, length, "UTF-8"));
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pos += length +1;
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/*
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* read the ServerState
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*/
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serverState = new ServerState(in, pos, in.length-1);
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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 Server Id.
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* @return the server id
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*/
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public short getServerId()
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{
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return this.serverId;
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}
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/**
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* Set the server URL.
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* @return the server URL
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*/
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public String getServerURL()
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{
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return this.serverURL;
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}
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/**
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* Get the base DN from this ReplServerStartMessage.
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*
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* @return the base DN from this ReplServerStartMessage.
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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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* Get the serverState.
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* @return Returns the serverState.
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*/
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public ServerState getServerState()
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{
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return this.serverState;
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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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/* The ReplServerStartMessage is stored in the form :
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* <operation type><basedn><serverid><serverURL><windowsize><serverState>
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*/
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try {
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byte[] byteDn = baseDn.getBytes("UTF-8");
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byte[] byteServerId = String.valueOf(serverId).getBytes("UTF-8");
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byte[] byteServerUrl = serverURL.getBytes("UTF-8");
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byte[] byteServerState = serverState.getBytes();
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byte[] byteWindowSize = String.valueOf(windowSize).getBytes("UTF-8");
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byte[] byteSSLEncryption =
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String.valueOf(sslEncryption).getBytes("UTF-8");
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int length = byteDn.length + 1 + byteServerId.length + 1 +
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byteServerUrl.length + 1 + byteWindowSize.length + 1 +
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byteSSLEncryption.length + 1 +
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byteServerState.length + 1;
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/* encode the header in a byte[] large enough to also contain the mods */
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byte resultByteArray[] = encodeHeader(MSG_TYPE_REPL_SERVER_START, length);
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int pos = headerLength;
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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 ServerId */
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pos = addByteArray(byteServerId, resultByteArray, pos);
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/* put the ServerURL */
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pos = addByteArray(byteServerUrl, resultByteArray, pos);
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/* put the window size */
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pos = addByteArray(byteWindowSize, resultByteArray, pos);
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/* put the SSL Encryption setting */
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pos = addByteArray(byteSSLEncryption, resultByteArray, pos);
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/* put the ServerState */
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pos = addByteArray(byteServerState, 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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* get the window size for the server that created this message.
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*
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* @return The window size for the server that created this message.
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*/
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public int getWindowSize()
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{
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return windowSize;
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}
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/**
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* Get the SSL encryption value for the server that created the
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* message.
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*
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* @return The SSL encryption value for the server that created the
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* message.
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*/
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public boolean getSSLEncryption()
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{
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return sslEncryption;
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}
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}
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