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/**
 * JRadius - A RADIUS Server Java Adapter
 * Copyright (C) 2004-2005 PicoPoint, B.V.
 *
 * 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 (at
 * your option) 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
 *
 */

package net.jradius.log;

import net.jradius.exception.RadiusException;
import net.jradius.server.JRadiusRequest;
import net.jradius.session.JRadiusSession;


/**
 * JRadius Server Logger Class.
 * @author David Bird
 */
public final class RadiusLog 
{
    public static boolean isLoggable(int logLevel)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            return ler.isLoggable(logLevel);
        }

        return false;
    }

    public static void error(String message)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.error(message);
        }
    }

    public static void error(String message, Throwable e)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.error(message, e);
        }
    }

    public static void warn(String message)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.warn(message);
        }
    }

    public static void warn(String message, Throwable e)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.warn(message, e);
        }
    }

    public static void info(String message)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.info(message);
        }
    }

    public static void info(String message, Throwable e)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.info(message, e);
        }
    }

    public static void debug(String message)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.debug(message);
        }
    }

    public static void debug(String message, Throwable e)
    {
        RadiusLogger ler = RadiusLog.logger;

        if (ler != null)
        {
            ler.debug(message, e);
        }
    }

    public static String problem(JRadiusRequest request, JRadiusSession session, RadiusException exception, String mesg)
    {
        StringBuffer sb = new StringBuffer();
        if (mesg != null)
        {
            sb.append("Problem: ").append(mesg).append("\n\n");
        }

        if (request != null)
        {
            sb.append("-----------------------------------------------------------\n")
              .append("JRadiusRequest: ").append(request.toString()).append("\n")
              .append("-----------------------------------------------------------\n");

            try
            {
                sb.append("RADIUS Request:\n")
                  .append("-----------------------------------------------------------\n")
                  .append(request.getRequestPacket().toString())
                  .append("-----------------------------------------------------------\n")
                  .append("RADIUS Reply:\n")
                  .append("-----------------------------------------------------------\n")
                  .append(request.getReplyPacket().toString())
                  .append("-----------------------------------------------------------\n")
                  .append("\n\n");
            }
            catch (RadiusException e)
            {
            }
        }

        if (session != null)
        {
            sb.append("-----------------------------------------------------------\n")
              .append("RadiusSession:\n")
              .append("-----------------------------------------------------------\n")
              .append(session.toString())
              .append("\n\n");
        }

        if (exception != null)
        {
            sb.append("-----------------------------------------------------------\n")
              .append("RadiusException:\n")
              .append("-----------------------------------------------------------\n")
              .append(exception.toString())
              .append("\n\n");
        }
        return sb.toString();
    }

    public static RadiusLogger getRadiusLogger()
    {
        return RadiusLog.logger;
    }

    public static void setRadiusLogger(RadiusLogger logger)
    {
        if (logger == null)
        {
            throw new IllegalArgumentException("logger");
        }

        RadiusLog.logger = logger;
    }

    private static RadiusLogger logger = new Log4JRadiusLogger();
}