org/objectweb/proactive/core/util/log/ProActiveLoggerFactory.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.org
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or any later version.
 *  
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.core.util.log;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.apache.log4j.Logger;
import org.apache.log4j.MDC;
import org.apache.log4j.spi.LoggerFactory;


public class ProActiveLoggerFactory implements LoggerFactory {

    public Logger makeNewLoggerInstance(String name) {
        if (MDC.get("hostname") == null) {
            MDC.put("hostname", getHostName());
        }
        if (MDC.get("runtime") == null) {
            MDC.put("runtime", "unknown runtime");
        }

        return new ProActiveLogger(name);
    }

    private static String getHostName() {
        try {
            return InetAddress.getLocalHost().getHostName();
        } catch (UnknownHostException e) {
            return "unknown host";
        }
    }
}

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