/*
|
* 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
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
|
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
|
* 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
|
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. 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
|
*
|
*
|
* Portions Copyright 2006-2007 Sun Microsystems, Inc.
|
*/
|
package org.opends.server.replication.protocol;
|
|
import java.io.Serializable;
|
import java.io.UnsupportedEncodingException;
|
import java.util.zip.DataFormatException;
|
|
import org.opends.server.replication.common.ServerState;
|
import org.opends.server.types.DirectoryException;
|
import org.opends.server.types.DN;
|
|
/**
|
* Message sent by a changelog server to another changelog server at Startup.
|
*/
|
public class ChangelogStartMessage extends SynchronizationMessage implements
|
Serializable
|
{
|
private static final long serialVersionUID = -5871385537169856856L;
|
|
private String baseDn = null;
|
private short serverId;
|
private String serverURL;
|
private ServerState serverState;
|
|
private int windowSize;
|
|
/**
|
* Create a ChangelogStartMessage.
|
*
|
* @param serverId changelog server id
|
* @param serverURL changelog server URL
|
* @param baseDn base DN for which the ChangelogStartMessage is created.
|
* @param windowSize The window size.
|
* @param serverState our ServerState for this baseDn.
|
*/
|
public ChangelogStartMessage(short serverId, String serverURL, DN baseDn,
|
int windowSize,
|
ServerState serverState)
|
{
|
this.serverId = serverId;
|
this.serverURL = serverURL;
|
if (baseDn != null)
|
this.baseDn = baseDn.toNormalizedString();
|
else
|
this.baseDn = null;
|
this.windowSize = windowSize;
|
this.serverState = serverState;
|
}
|
|
/**
|
* Creates a new ChangelogStartMessage by decoding the provided byte array.
|
* @param in A byte array containing the encoded information for the
|
* ChangelogStartMessage
|
* @throws DataFormatException If the in does not contain a properly
|
* encoded ChangelogStartMessage.
|
*/
|
public ChangelogStartMessage(byte[] in) throws DataFormatException
|
{
|
/* The ChangelogStartMessage is encoded in the form :
|
* <baseDn><ServerId><ServerUrl><windowsize><ServerState>
|
*/
|
try
|
{
|
/* first byte is the type */
|
if (in[0] != MSG_TYPE_CHANGELOG_START)
|
throw new DataFormatException("input is not a valid ChangelogStartMsg");
|
int pos = 1;
|
|
/* read the dn
|
* first calculate the length then construct the string
|
*/
|
int length = getNextLength(in, pos);
|
baseDn = new String(in, pos, length, "UTF-8");
|
pos += length +1;
|
|
/*
|
* read the ServerId
|
*/
|
length = getNextLength(in, pos);
|
String serverIdString = new String(in, pos, length, "UTF-8");
|
serverId = Short.valueOf(serverIdString);
|
pos += length +1;
|
|
/*
|
* read the ServerURL
|
*/
|
length = getNextLength(in, pos);
|
serverURL = new String(in, pos, length, "UTF-8");
|
pos += length +1;
|
|
/*
|
* read the window size
|
*/
|
length = getNextLength(in, pos);
|
windowSize = Integer.valueOf(new String(in, pos, length, "UTF-8"));
|
pos += length +1;
|
|
/*
|
* read the ServerState
|
*/
|
serverState = new ServerState(in, pos, in.length-1);
|
} catch (UnsupportedEncodingException e)
|
{
|
throw new DataFormatException("UTF-8 is not supported by this jvm.");
|
}
|
}
|
|
/**
|
* Get the Server Id.
|
* @return the server id
|
*/
|
public short getServerId()
|
{
|
return this.serverId;
|
}
|
|
/**
|
* Set the server URL.
|
* @return the server URL
|
*/
|
public String getServerURL()
|
{
|
return this.serverURL;
|
}
|
|
/**
|
* Get the base DN from this ChangelogStartMessage.
|
*
|
* @return the base DN from this ChangelogStartMessage.
|
*/
|
public DN getBaseDn()
|
{
|
if (baseDn == null)
|
return null;
|
try
|
{
|
return DN.decode(baseDn);
|
} catch (DirectoryException e)
|
{
|
return null;
|
}
|
}
|
|
/**
|
* Get the serverState.
|
* @return Returns the serverState.
|
*/
|
public ServerState getServerState()
|
{
|
return this.serverState;
|
}
|
|
/**
|
* {@inheritDoc}
|
*/
|
@Override
|
public byte[] getBytes()
|
{
|
/* The ChangelogStartMessage is stored in the form :
|
* <operation type><basedn><serverid><serverURL><windowsize><serverState>
|
*/
|
try {
|
byte[] byteDn = baseDn.getBytes("UTF-8");
|
byte[] byteServerId = String.valueOf(serverId).getBytes("UTF-8");
|
byte[] byteServerUrl = serverURL.getBytes("UTF-8");
|
byte[] byteServerState = serverState.getBytes();
|
byte[] byteWindowSize = String.valueOf(windowSize).getBytes("UTF-8");
|
|
int length = 1 + byteDn.length + 1 + byteServerId.length + 1 +
|
byteServerUrl.length + 1 + byteWindowSize.length + 1 +
|
byteServerState.length + 1;
|
|
byte[] resultByteArray = new byte[length];
|
|
/* put the type of the operation */
|
resultByteArray[0] = MSG_TYPE_CHANGELOG_START;
|
int pos = 1;
|
|
/* put the baseDN and a terminating 0 */
|
pos = addByteArray(byteDn, resultByteArray, pos);
|
|
/* put the ServerId */
|
pos = addByteArray(byteServerId, resultByteArray, pos);
|
|
/* put the ServerURL */
|
pos = addByteArray(byteServerUrl, resultByteArray, pos);
|
|
/* put the window size */
|
pos = addByteArray(byteWindowSize, resultByteArray, pos);
|
|
/* put the ServerState */
|
pos = addByteArray(byteServerState, resultByteArray, pos);
|
|
return resultByteArray;
|
}
|
catch (UnsupportedEncodingException e)
|
{
|
return null;
|
}
|
}
|
|
/**
|
* get the window size for the server that created this message.
|
*
|
* @return The window size for the server that created this message.
|
*/
|
public int getWindowSize()
|
{
|
return windowSize;
|
}
|
}
|
