package org.apache.maven.archiva.web.repository;
/*
* 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.
*/
import org.apache.commons.lang.StringUtils;
import org.codehaus.plexus.evaluator.EvaluatorException;
import org.codehaus.plexus.evaluator.ExpressionEvaluator;
import org.codehaus.plexus.evaluator.ExpressionSource;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;
import org.codehaus.plexus.webdav.DavServerComponent;
import org.codehaus.plexus.webdav.DavServerListener;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* AuditLog - Audit Log.
*
* @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a>
* @version $Id: AuditLog.java 540296 2007-05-21 21:04:20Z joakime $
*
* @plexus.component role="org.apache.maven.archiva.web.repository.AuditLog"
*/
public class AuditLog
implements DavServerListener, Initializable
{
public static final String ROLE = AuditLog.class.getName();
/**
* @plexus.configuration default-value="${appserver.base}/logs/audit.log"
*/
private String logFilename;
/**
* @plexus.configuration default-value="yyyy-MM-dd HH:mm:ss"
*/
private String timestampFormat;
/**
* @plexus.requirement role-hint="default"
*/
private ExpressionEvaluator expressionEvaluator;
/**
* @plexus.requirement role-hint="sysprops"
*/
private ExpressionSource syspropExprSource;
private File logFile;
private PrintWriter writer;
private SimpleDateFormat timestamp;
private String getServerId( DavServerComponent server )
{
return "[" + server.getPrefix() + "]";
}
public void serverCollectionCreated( DavServerComponent server, String resource )
{
log( getServerId( server ) + " Created Directory \"" + resource + "\"" );
}
public void serverCollectionRemoved( DavServerComponent server, String resource )
{
log( getServerId( server ) + " Removed Directory \"" + resource + "\"" );
}
public void serverResourceCreated( DavServerComponent server, String resource )
{
log( getServerId( server ) + " Created File \"" + resource + "\"" );
}
public void serverResourceModified( DavServerComponent server, String resource )
{
log( getServerId( server ) + " Modified Existing File \"" + resource + "\"" );
}
public void serverResourceRemoved( DavServerComponent server, String resource )
{
log( getServerId( server ) + " Removed File \"" + resource + "\"" );
}
/**
* Log the message to the file.
*
* @param msg the message.
*/
public void log( String msg )
{
// Synchronize to prevent threading issues.
synchronized ( writer )
{
writer.println( timestamp.format( new Date() ) + " - " + msg );
// Manually flush buffer to ensure data is written to disk.
writer.flush();
}
}
public void initialize()
throws InitializationException
{
String actualFilename;
try
{
expressionEvaluator.addExpressionSource( syspropExprSource );
actualFilename = expressionEvaluator.expand( this.logFilename );
}
catch ( EvaluatorException e1 )
{
actualFilename = this.logFilename;
}
this.logFile = new File( actualFilename );
File parentDir = logFile.getParentFile();
if ( parentDir != null )
{
if ( !parentDir.exists() )
{
parentDir.mkdirs();
}
}
if ( StringUtils.isBlank( timestampFormat ) )
{
timestampFormat = "yyyy-MM-dd HH:mm:ss";
}
timestamp = new SimpleDateFormat( timestampFormat );
try
{
writer = new PrintWriter( new FileWriter( logFile ) );
log( "Logging Initialized." );
}
catch ( IOException e )
{
throw new InitializationException( "Unable to initialize log file writer: " + logFile.getAbsolutePath(), e );
}
}
}