/*
|
* 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
|
*
|
*
|
* Copyright 2009 Sun Microsystems, Inc.
|
* Portions Copyright 2011-2013 ForgeRock AS
|
*/
|
package org.opends.server.replication.server.changelog.je;
|
|
import org.opends.messages.Message;
|
import org.opends.server.loggers.debug.DebugTracer;
|
import org.opends.server.replication.common.CSN;
|
import org.opends.server.replication.server.changelog.api.*;
|
import org.opends.server.replication.server.changelog.je.DraftCNDB.*;
|
import org.opends.server.types.DebugLogLevel;
|
|
import static org.opends.server.loggers.debug.DebugLogger.*;
|
|
/**
|
* This class allows to iterate through the changes received from a given
|
* LDAP Server Identifier.
|
*/
|
public class DraftCNDbIterator implements ChangeNumberIndexDBCursor
|
{
|
private static final DebugTracer TRACER = getTracer();
|
private DraftCNDBCursor draftCNDbCursor;
|
|
/**
|
* Creates a new ReplicationIterator.
|
* All created iterator must be released by the caller using the
|
* releaseCursor() method.
|
*
|
* @param db The db where the iterator must be created.
|
* @param startDraftCN The draft CN after which the iterator
|
* must start.
|
* @throws ChangelogException If a database problem happened.
|
*/
|
public DraftCNDbIterator(DraftCNDB db, int startDraftCN)
|
throws ChangelogException
|
{
|
draftCNDbCursor = db.openReadCursor(startDraftCN);
|
if (draftCNDbCursor == null)
|
{
|
throw new ChangelogException(Message.raw("no new change"));
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public String getBaseDN()
|
{
|
try
|
{
|
return this.draftCNDbCursor.currentBaseDN();
|
}
|
catch(Exception e)
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
return null;
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public CSN getCSN()
|
{
|
try
|
{
|
return this.draftCNDbCursor.currentCSN();
|
}
|
catch(Exception e)
|
{
|
TRACER.debugCaught(DebugLogLevel.ERROR, e);
|
return null;
|
}
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public int getDraftCN()
|
{
|
ReplicationDraftCNKey sk = (ReplicationDraftCNKey) draftCNDbCursor.getKey();
|
int currentSeqnum = sk.getDraftCN();
|
return currentSeqnum;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public boolean next() throws ChangelogException
|
{
|
if (draftCNDbCursor != null)
|
{
|
return draftCNDbCursor.next();
|
}
|
return false;
|
}
|
|
/** {@inheritDoc} */
|
@Override
|
public void close()
|
{
|
synchronized (this)
|
{
|
if (draftCNDbCursor != null)
|
{
|
draftCNDbCursor.close();
|
draftCNDbCursor = null;
|
}
|
}
|
}
|
|
/**
|
* Called by the Gc when the object is garbage collected
|
* Release the cursor in case the iterator was badly used and releaseCursor
|
* was never called.
|
*/
|
@Override
|
protected void finalize()
|
{
|
close();
|
}
|
}
|
