Package com.sun.enterprise.admin.launcher

Source Code of com.sun.enterprise.admin.launcher.GFLauncherLogger

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package com.sun.enterprise.admin.launcher;

import com.sun.enterprise.server.logging.UniformLogFormatter;
import com.sun.enterprise.universal.i18n.LocalStringsImpl;

import java.io.IOException;
import java.util.logging.*;

/**
* A POL (plain old logger). 
*
* @author bnevins
*/

public class GFLauncherLogger {

    public static void warning(String msg, Object... objs)
    {
        logger.warning(strings.get(msg, objs));
    }
    public static void info(String msg, Object... objs)
    {
        logger.info(strings.get(msg, objs));
    }
    public static void severe(String msg, Object... objs)
    {
        logger.severe(strings.get(msg, objs));
    }
    public static void fine(String msg, Object... objs)
    {
        logger.fine(strings.get(msg, objs));
    }

    /////////////////////////  non-public below  //////////////////////////////
   
    static synchronized void setConsoleLevel(Level level) {
        for (Handler h : logger.getHandlers()) {
            if (ConsoleHandler.class.isAssignableFrom(h.getClass())) {
                h.setLevel(level);
            }
        }
    }

    /**
     * IMPORTANT! 
     * The server's logfile is added to the *local* logger.  But it is never
     * removed.  The files are kept open by the logger.  One really bad result
     * is that Windows will not be able to delete that server after stopping it.
     * Solution: remove the file handler when done.
     * @param logFile The logfile
     * @throws GFLauncherException if the info object has not been setup
     */
    static synchronized void addLogFileHandler(String logFile, GFLauncherInfo info) throws GFLauncherException
    {
        try
        {
            if (logFile == null || logfileHandler != null) {
                return;
            }
            logfileHandler = new FileHandler(logFile, true);
            logfileHandler.setFormatter(new UniformLogFormatter());
            logfileHandler.setLevel(Level.INFO);
            logger.addHandler(logfileHandler);           
        }
        catch(IOException e)
        {
            // should be seen in verbose and watchdog modes for debugging
            e.printStackTrace();
        }

    }
    static  synchronized void removeLogFileHandler()  {
        if(logfileHandler != null) {
            logger.removeHandler(logfileHandler);
            logfileHandler.close();
            logfileHandler = null;
        }         
    }
   
    private GFLauncherLogger() {
    }
    private final static Logger logger;
    private final static LocalStringsImpl strings = new LocalStringsImpl(GFLauncherLogger.class);
    private static FileHandler logfileHandler;
   
    static  {
        /*
         * Create a Logger just for the launcher that only uses
         * the Handlers we set up.  This makes sure that when
         * we change the log level for the Handler, we don't
         * interfere with subsequent use of the Logger by
         * asadmin.
         */
        logger = Logger.getLogger(GFLauncherLogger.class.getName());
        logger.setLevel(Level.INFO);
        logger.setUseParentHandlers(false);
        logger.addHandler(new ConsoleHandler());
    }
}
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