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//
//  ========================================================================
//  Copyright (c) 1995-2018 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.util.log;

import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.logging.Level;
import java.util.logging.LogManager;
import java.util.logging.LogRecord;

import org.eclipse.jetty.util.Loader;

/**
 * 
 * Implementation of Jetty {@link Logger} based on {@link java.util.logging.Logger}.
 * 
 *
 * 
 * You can also set the logger level using 
 * standard java.util.logging configuration.
 * 
 * 
 * Configuration Properties:
 * 
 *   ${name|hierarchy}.LEVEL=(ALL|DEBUG|INFO|WARN|OFF)
 *   
 *   Sets the level that the Logger should log at.

 *   Names can be a package name, or a fully qualified class name.

 *   Default: The default from the java.util.logging mechanism/configuration
 *   

 *   
org.eclipse.jetty.util.log.javautil.PROPERTIES=<property-resource-name>
 *   If set, it is used as a classpath resource name to find a java.util.logging 
 *   property file.
 *   

 *   Default: null
 *   
 *   org.eclipse.jetty.util.log.javautil.SOURCE=(true|false)
 *   Set the LogRecord source class and method for JavaUtilLog.

 *   Default: true
 *   
 *   org.eclipse.jetty.util.log.SOURCE=(true|false)
 *   Set the LogRecord source class and method for all Loggers.

 *   Default: depends on Logger class
 *   
 * 
 */
public class JavaUtilLog extends AbstractLogger
{
    private final static String THIS_CLASS= JavaUtilLog.class.getName();
    private final static boolean __source = 
            Boolean.parseBoolean(Log.__props.getProperty("org.eclipse.jetty.util.log.SOURCE",
            Log.__props.getProperty("org.eclipse.jetty.util.log.javautil.SOURCE","true")));
    
    private static boolean _initialized=false;
    
    private Level configuredLevel;
    private java.util.logging.Logger _logger;

    public JavaUtilLog()
    {
        this("org.eclipse.jetty.util.log.javautil");
    }

    public JavaUtilLog(String name)
    {
        synchronized (JavaUtilLog.class)
        {
            if (!_initialized)
            {
                _initialized=true;

                final String properties=Log.__props.getProperty("org.eclipse.jetty.util.log.javautil.PROPERTIES",null);
                if (properties!=null)
                {
                    AccessController.doPrivileged(new PrivilegedAction