/*
* 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.studio.ldapbrowser.core.internal.model;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Field;
import java.util.logging.FileHandler;
import java.util.logging.Formatter;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
import java.util.logging.Logger;
import org.apache.directory.studio.ldapbrowser.core.BrowserConnectionManager;
public class ModificationLogger
{
private BrowserConnection connection;
private FileHandler fileHandler;
private Logger logger;
public ModificationLogger( BrowserConnection connection )
{
this.connection = connection;
}
private void initModificationLogger()
{
this.logger = Logger.getAnonymousLogger();
this.logger.setLevel( Level.ALL );
String logfileName = BrowserConnectionManager.getModificationLogFileName( connection );
try
{
fileHandler = new FileHandler( logfileName, 100000, 10, true );
fileHandler.setFormatter( new Formatter()
{
public String format( LogRecord record )
{
return record.getMessage();
}
} );
this.logger.addHandler( fileHandler );
}
catch ( SecurityException e )
{
e.printStackTrace();
}
catch ( IOException e )
{
e.printStackTrace();
}
}
public void dispose()
{
if ( this.logger != null )
{
Handler[] handlers = this.logger.getHandlers();
for ( int i = 0; i < handlers.length; i++ )
{
handlers[i].close();
}
this.logger = null;
}
}
public void log( String s )
{
if ( this.logger == null )
{
if ( connection.getName() != null )
{
this.initModificationLogger();
}
}
if ( this.logger != null )
{
this.logger.log( Level.ALL, s );
}
}
public File[] getFiles()
{
if ( this.logger == null )
{
if ( connection.getName() != null )
{
this.initModificationLogger();
}
}
try
{
return getLogFiles( this.fileHandler );
}
catch ( Exception e )
{
return new File[0];
}
}
private static File[] getLogFiles( FileHandler fileHandler ) throws Exception
{
Field field = getFieldFromClass( "java.util.logging.FileHandler", "files" ); //$NON-NLS-1$ //$NON-NLS-2$
field.setAccessible( true );
File[] files = ( File[] ) field.get( fileHandler );
return files;
}
private static Field getFieldFromClass( String className, String fieldName ) throws Exception
{
Class clazz = Class.forName( className );
Field[] fields = clazz.getDeclaredFields();
for ( int i = 0; i < fields.length; i++ )
{
if ( fields[i].getName().equals( fieldName ) )
return fields[i];
}
return null;
}
}