package org.apache.velocity.runtime.log;
/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Velocity", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.io.File;
import java.net.URL;
import org.apache.log.Category;
import org.apache.log.Formatter;
import org.apache.log.Priority;
import org.apache.log.Logger;
import org.apache.log.LogKit;
import org.apache.log.LogTarget;
import org.apache.log.output.FileOutputLogTarget;
import org.apache.velocity.util.StringUtils;
import org.apache.velocity.runtime.Runtime;
/**
* Implementation of a Avalon logger.
*
* @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
* @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
* @version $Id: AvalonLogSystem.java,v 1.3 2001/03/19 06:15:54 jon Exp $
*/
public class AvalonLogSystem implements LogSystem
{
private Logger logger = null;
private String logPath = "";
/**
* default CTOR. Initializes itself using the property RUNTIME_LOG
* from the Velocity properties
*/
public AvalonLogSystem()
{
/*
* since this is a Velocity-provided logger, we will
* use the Runtime configuration
*/
String logfile = (String) Runtime.getProperty( Runtime.RUNTIME_LOG );
/*
* now init. If we can't, panic!
*/
try
{
init( logfile );
logVelocityMessage( 0,
"AvalonLogSystem initialized using logfile " + logPath );
}
catch( Exception e )
{
System.out.println(
"PANIC : error configuring AvalonLogSystem : " + e );
}
}
/**
* initializes the log system using the logfile argument
*
* @param logFile file for log messages
*/
public void init(String logFile)
throws Exception
{
String targetName = "velocity";
String priority = "DEBUG";
Category category = LogKit.createCategory(
targetName, LogKit.getPriorityForName( priority ) );
/*
* Just create a FileOutputLogTarget, this is taken
* from the SAR deployer in Avalon.
*/
FileOutputLogTarget target = new FileOutputLogTarget();
File logFileLocation = new File (logFile);
logPath = logFileLocation.getAbsolutePath();
target.setFilename( logPath );
target.setFormatter(new VelocityFormatter());
target.setFormat("%{time} %{message}\\n%{throwable}" );
LogTarget logTargets[] = null;
if ( null != target )
{
logTargets = new LogTarget[] { target };
}
logger = LogKit.createLogger( category, logTargets );
}
/**
* logs messages
*
* @param level severity level
* @param message complete error message
*/
public void logVelocityMessage(int level, String message)
{
switch (level)
{
case LogSystem.WARN_ID:
logger.warn( message );
break;
case LogSystem.INFO_ID:
logger.info(message);
break;
case LogSystem.DEBUG_ID:
logger.debug(message);
break;
case LogSystem.ERROR_ID:
logger.error(message);
break;
default:
logger.info(message);
break;
}
}
}