org.ops4j.pax.logging.avalon.AvalonLogFactory Maven / Gradle / Ivy

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/*
 * Copyright 2006 Niclas Hedhman.
 *
 * Licensed  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.ops4j.pax.logging.avalon;

import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.WeakHashMap;
import java.util.Collections;
import org.apache.avalon.framework.logger.Logger;
import org.ops4j.pax.logging.OSGIPaxLoggingManager;
import org.ops4j.pax.logging.PaxLogger;
import org.ops4j.pax.logging.PaxLoggingManager;
import org.osgi.framework.BundleContext;

public class AvalonLogFactory
{

    private static PaxLoggingManager m_paxLogging;
    private static Map m_loggers;

    static
    {
        m_loggers = Collections.synchronizedMap( new WeakHashMap() );
    }

    public static void setBundleContext( BundleContext context )
    {
        m_paxLogging = new OSGIPaxLoggingManager( context );
        Set entrySet = m_loggers.entrySet();
        Iterator iterator = entrySet.iterator();
        while( iterator.hasNext() )
        {
            Map.Entry entry = (Entry) iterator.next();
            AvalonLogger logger = (AvalonLogger) entry.getKey();
            String name = (String) entry.getValue();
            logger.setPaxLoggingManager( m_paxLogging, name );
        }
        m_paxLogging.open();
    }

    /**
     * Lifecycle method to release any resources held.
     */
    public static void release()
    {
    }

    public static Logger getLogger( String name )
    {
        return getLogger( null, name );
    }

    public static Logger getLogger( AvalonLogger parent, String name )
    {
        String newName;
        if( parent == null )
        {
            newName = name;
        }
        else
        {
            newName = parent.getName() + "." + name;
        }
        PaxLogger logger = m_paxLogging.getLogger( newName, AvalonLogger.AVALON_FQCN );
        AvalonLogger avalonLogger = new AvalonLogger( logger );
        m_loggers.put( avalonLogger, newName );
        return avalonLogger;
    }

    /** Pax Logging internal method. Should never be used directly. */
    public static void dispose()
    {
        m_paxLogging.close();
        m_paxLogging.dispose();
        m_paxLogging = null;
    }
}