| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.directory.server.core.journal; |
| |
| |
| import org.apache.directory.api.ldap.model.exception.LdapException; |
| import org.apache.directory.api.ldap.model.ldif.LdifEntry; |
| import org.apache.directory.server.core.api.DirectoryService; |
| import org.apache.directory.server.core.api.LdapPrincipal; |
| import org.apache.directory.server.core.api.journal.Journal; |
| import org.apache.directory.server.core.api.journal.JournalStore; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * The default journal implementation. It stores the operation and the |
| * associated status (acked or nacked) in a file which will be used to |
| * restore the server if it crashes. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class DefaultJournal implements Journal |
| { |
| /** The class logger */ |
| private static final Logger LOG = LoggerFactory.getLogger( DefaultJournal.class ); |
| |
| /** Tells if the service is activated or not */ |
| private boolean enabled; |
| |
| /** An instance of the Journal store */ |
| private JournalStore store; |
| |
| /** |
| * A parameter indicating the number of operations stored in a journal |
| * before it is rotated. If set to 0, no rotation is done |
| */ |
| private int rotation; |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void destroy() throws Exception |
| { |
| LOG.debug( "Stopping the journal" ); |
| |
| // We have to release the file, otherwise Windows won't be able |
| // to stop the server |
| if ( store != null ) |
| { |
| store.destroy(); |
| } |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public JournalStore getJournalStore() |
| { |
| return store; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void init( DirectoryService directoryService ) throws Exception |
| { |
| LOG.debug( "Starting the journal" ); |
| |
| if ( store == null ) |
| { |
| store = new DefaultJournalStore(); |
| } |
| |
| store.init( directoryService ); |
| |
| LOG.debug( "The Journal service has been initialized" ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isEnabled() |
| { |
| return enabled; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void log( LdapPrincipal principal, long revision, LdifEntry entry ) throws LdapException |
| { |
| store.log( principal, revision, entry ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void ack( long revision ) |
| { |
| store.ack( revision ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void nack( long revision ) |
| { |
| store.nack( revision ); |
| } |
| |
| |
| /** |
| * @return the rotation |
| */ |
| public int getRotation() |
| { |
| return rotation; |
| } |
| |
| |
| /** |
| * @param rotation the rotation to set |
| */ |
| public void setRotation( int rotation ) |
| { |
| this.rotation = rotation; |
| } |
| |
| |
| public void setEnabled( boolean enabled ) |
| { |
| this.enabled = enabled; |
| } |
| |
| |
| public void setJournalStore( JournalStore store ) |
| { |
| this.store = store; |
| } |
| } |