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/*
* 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.velocity.app.Velocity;
import org.apache.velocity.runtime.log.LogChute;
import org.apache.velocity.runtime.RuntimeServices;
/**
* This is a toy demonstration of how Velocity
* can use an externally configured logger. In
* this example, the class using Velocity
* implements Velocity's logger interface, and
* all Velocity log messages are funneled back
* through it.
*
* @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
* @version $Id: LoggerExample.java 463298 2006-10-12 16:10:32Z henning $
*/
public class LoggerExample implements LogChute
{
public LoggerExample()
{
try
{
/*
* this class implements the LogSystem interface, so we
* can use it as a logger for Velocity
*/
Velocity.setProperty(Velocity.RUNTIME_LOG_LOGSYSTEM, this );
Velocity.init();
/*
* that will be enough. The Velocity initialization will be
* output to stdout because of our
* logVelocityMessage() method in this class
*/
}
catch( Exception e )
{
System.out.println("Exception : " + e);
}
}
/**
* Required init() method for LogSystem
* to get access to RuntimeServices
*/
public void init( RuntimeServices rs )
{
return;
}
/**
* This just prints the message and level to System.out.
*/
public void log(int level, String message)
{
System.out.println("level : " + level + " msg : " + message);
}
/**
* This prints the level, message, and the Throwable's message to
* System.out.
*/
public void log(int level, String message, Throwable t)
{
System.out.println("level : " + level + " msg : " + message + " t : "
+ t.getMessage());
}
/**
* This always returns true because logging levels can't be disabled in
* this impl.
*/
public boolean isLevelEnabled(int level)
{
return true;
}
public static void main(String[] args)
{
LoggerExample t = new LoggerExample();
}
}
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