| /* |
| * 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 java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStreamWriter; |
| import java.io.PrintWriter; |
| import java.io.Writer; |
| |
| import org.apache.directory.api.ldap.model.exception.LdapException; |
| import org.apache.directory.api.ldap.model.ldif.LdifEntry; |
| import org.apache.directory.api.ldap.model.ldif.LdifUtils; |
| import org.apache.directory.server.core.api.DirectoryService; |
| import org.apache.directory.server.core.api.LdapPrincipal; |
| import org.apache.directory.server.core.api.journal.JournalStore; |
| |
| |
| /** |
| * @todo : Missing Javadoc |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class DefaultJournalStore implements JournalStore |
| { |
| /** The directory where the journal is stored */ |
| private File workingDirectory; |
| |
| /** The journal file name */ |
| private String fileName; |
| |
| /** The file containing the journal */ |
| private File journal; |
| |
| /** The stream used to write data into the journal */ |
| private Writer writer; |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void destroy() throws Exception |
| { |
| if ( writer != null ) |
| { |
| writer.close(); |
| } |
| } |
| |
| |
| /** |
| * Initialize the interceptor |
| */ |
| public void init( DirectoryService service ) throws Exception |
| { |
| if ( workingDirectory == null ) |
| { |
| workingDirectory = service.getInstanceLayout().getLogDirectory(); |
| } |
| |
| /** Load or create the journal file */ |
| if ( fileName == null ) |
| { |
| fileName = "journal.ldif"; |
| } |
| |
| journal = new File( workingDirectory, fileName ); |
| |
| // The new requests are added at the end of the existing journal |
| writer = new PrintWriter( |
| new OutputStreamWriter( |
| new FileOutputStream( journal, true ) ) ); |
| } |
| |
| |
| /** |
| * Stores an event into the journal. |
| * |
| * @param principal The principal who is logging the change |
| * @param revision The operation revision |
| * @param forward The change to log |
| */ |
| public boolean log( LdapPrincipal principal, long revision, LdifEntry forward ) |
| { |
| synchronized ( writer ) |
| { |
| try |
| { |
| // Write the LdapPrincipal |
| writer.write( "# principal: " ); |
| writer.write( principal.getName() ); |
| writer.write( '\n' ); |
| |
| // Write the timestamp |
| writer.write( "# timestamp: " ); |
| writer.write( Long.toString( System.currentTimeMillis() ) ); |
| writer.write( '\n' ); |
| |
| // Write the revision |
| writer.write( "# revision: " ); |
| writer.write( Long.toString( revision ) ); |
| writer.write( "\n" ); |
| |
| // Write the entry |
| writer.write( LdifUtils.convertToLdif( forward, 80 ) ); |
| writer.flush(); |
| } |
| catch ( LdapException ne ) |
| { |
| return false; |
| } |
| catch ( IOException ioe ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Records a ack for a change |
| * |
| * @param revision The change revision which is acked |
| * @return <code>true</code> if the ack has been written |
| * @throws Exception if there are problems logging the ack |
| */ |
| public boolean ack( long revision ) |
| { |
| synchronized ( writer ) |
| { |
| try |
| { |
| // Write the revision |
| writer.write( "# ack-revision: " ); |
| writer.write( Long.toString( revision ) ); |
| writer.write( "\n\n" ); |
| |
| writer.flush(); |
| } |
| catch ( IOException ioe ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Records a nack for a change |
| * |
| * @param revision The change revision which is nacked |
| * @return <code>true</code> if the nack has been written |
| * @throws Exception if there are problems logging the nack |
| */ |
| public boolean nack( long revision ) |
| { |
| synchronized ( writer ) |
| { |
| try |
| { |
| // Write the revision |
| writer.write( "# nack-revision: " ); |
| writer.write( Long.toString( revision ) ); |
| writer.write( "\n\n" ); |
| |
| writer.flush(); |
| } |
| catch ( IOException ioe ) |
| { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| |
| public void sync() throws Exception |
| { |
| // TODO Auto-generated method stub |
| |
| } |
| |
| |
| public long getCurrentRevision() |
| { |
| // TODO Auto-generated method stub |
| return 0; |
| } |
| |
| |
| /** |
| * @return the fileName |
| */ |
| public String getFileName() |
| { |
| return fileName; |
| } |
| |
| |
| /** |
| * @param fileName the fileName to set |
| */ |
| public void setFileName( String fileName ) |
| { |
| this.fileName = fileName; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void setWorkingDirectory( String workingDirectoryName ) |
| { |
| this.workingDirectory = new File( workingDirectoryName ); |
| } |
| } |