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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
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 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
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package com.sun.enterprise.tools.upgrade.logging;

import java.io.*;
import java.util.logging.*;
import com.sun.enterprise.tools.upgrade.common.*;

/**
 *
 * author : Servesh Singh
 *
 */

public class LogService {

    public static final String UPGRADE_LOGGER="com.sun.enterprise.tools.upgrade";
    public static final String UPGRADE_CLI_LOGGER="com.sun.enterprise.tools.upgrade.cli";
    public static final String UPGRADE_CERTCONVERSION_LOGGER="com.sun.enterprise.tools.upgrade.certconversion";
    public static final String UPGRADE_GUI_LOGGER = "com.sun.enterprise.tools.upgrade.gui";   
    public static final String UPGRADE_COMMON_LOGGER = "com.sun.enterprise.tools.upgrade.common";    
    public static final String UPGRADE_MISCCONFIG_LOGGER = "com.sun.enterprise.tools.upgrade.miscconfig";
    public static final String UPGRADE_TRANSFORM_LOGGER = "com.sun.enterprise.tools.upgrade.transform";
    public static final String UPGRADE_REALM_LOGGER = "com.sun.enterprise.tools.upgrade.realm";    
    private static LogFormatter formatter;
    private static FileHandler loghandler;
    //Default log level
    private static final Level DEFAULT_LEVEL = Level.INFO;

    private static Level logLevel = null;


    public static void initialize(String fileName) throws IOException{
	LogManager.getLogManager().reset();
	formatter = new LogFormatter();
    boolean append = true;
    int limit = 1000000;
    loghandler = new FileHandler(fileName,limit,1,append);
    logLevel =  getLogLevel();
    loghandler.setLevel(logLevel );
	loghandler.setFormatter(formatter);
    }

    /**
     * private helper method to decipher the log level from the system property.
     * Defaults to the statically defined field DEFAULT_LEVEL
     */
    private static Level getLogLevel()
    {
        String logLevel = System.getProperty("com.sun.aas.utool.LogLevel");
        if (logLevel != null )
        {
            try{
                return Level.parse(logLevel);
            }catch(IllegalArgumentException  e) {
                 return DEFAULT_LEVEL;
            }
        }
        return DEFAULT_LEVEL;
    }

    public static Logger getLogger(String name) {
	Logger logger = Logger.getLogger(name);

        logger.setLevel(logLevel);
	Handler[] h = logger.getHandlers();
	for (int i = 0; i < h.length; i++) {
	    logger.removeHandler(h[i]);
	}
	logger.addHandler(loghandler);
        loghandler.setLevel(logLevel);
	return logger;
    }

    public static void addLogMessageListener(LogMessageListener listener){
        formatter.addLogMessageListener(listener);
    }

    public static void removeLogMessageListener(LogMessageListener listener){
	formatter.removeLogMessageListener(listener);
    }

}