/*
* 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.avalon.excalibur.logger;
import org.apache.avalon.excalibur.logger.log4j.Log4JConfigurator;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.configuration.ConfigurationUtil;
import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.ContextException;
import org.apache.avalon.framework.context.Contextualizable;
import org.apache.log4j.LogManager;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* A LoggerManager for Log4j that will configure the Log4j subsystem
* using specified configuration.
*
* @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
* @version $Revision: 1.8 $ $Date: 2004/05/04 11:14:28 $
*/
public class Log4JConfLoggerManager
extends Log4JLoggerManager
implements Configurable, Contextualizable
{
private Context m_context;
/* (non-Javadoc)
* @see org.apache.avalon.framework.context.Contextualizable#contextualize(org.apache.avalon.framework.context.Context)
*/
public void contextualize(Context context) throws ContextException
{
m_context = context;
}
/**
* Work around a weird compilation problem. Can not call
* the constructor from fortress/ContextManager, get a
* file org\apache\log4j\spi\LoggerRepository.class not found
* new Log4JConfLoggerManager( lmDefaultLoggerName, lmLoggerName );
*/
public static Log4JConfLoggerManager newInstance( final String prefix,
final String switchToCategory )
{
return new Log4JConfLoggerManager( prefix, switchToCategory );
}
public Log4JConfLoggerManager( final String prefix, final String switchToCategory )
{
super( prefix, switchToCategory );
}
public Log4JConfLoggerManager()
{
}
public void configure( final Configuration configuration )
throws ConfigurationException
{
final Element element = ConfigurationUtil.toElement( configuration );
final Document document = element.getOwnerDocument();
final Element newElement = document.createElement( "log4j:configuration" );
final NodeList childNodes = element.getChildNodes();
final int length = childNodes.getLength();
for( int i = 0; i < length; i++ )
{
final Node node = childNodes.item( i );
final Node newNode = node.cloneNode( true );
newElement.appendChild( newNode );
}
document.appendChild( newElement );
Log4JConfigurator configurator = new Log4JConfigurator(m_context);
configurator.doConfigure( newElement, LogManager.getLoggerRepository());
}
}