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// Jericho HTML Parser - Java based library for analysing and manipulating HTML
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// Version 3.2
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// Copyright (C) 2004-2009 Martin Jericho
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// http://jericho.htmlparser.net/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of either one of the following licences:
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//
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// 1. The Eclipse Public License (EPL) version 1.0,
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// included in this distribution in the file licence-epl-1.0.html
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// or available at http://www.eclipse.org/legal/epl-v10.html
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//
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// 2. The GNU Lesser General Public License (LGPL) version 2.1 or later,
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// included in this distribution in the file licence-lgpl-2.1.txt
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// or available at http://www.gnu.org/licenses/lgpl.txt
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//
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// This library is distributed on an "AS IS" basis,
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// WITHOUT WARRANTY OF ANY KIND, either express or implied.
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// See the individual licence texts for more details.
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package net.htmlparser.jericho;
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final class LoggerFactory
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{
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private static LoggerProvider defaultLoggerProvider = null;
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public static Logger getLogger(final String name)
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{
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return getLoggerProvider().getLogger(name);
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}
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public static Logger getLogger(final Class loggedClass)
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{
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return getLogger(loggedClass.getName());
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}
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public static LoggerProvider getLoggerProvider()
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{
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return (Config.LoggerProvider != null) ? Config.LoggerProvider : getDefaultLoggerProvider();
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}
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private static LoggerProvider getDefaultLoggerProvider()
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{
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if (defaultLoggerProvider == null) defaultLoggerProvider = determineDefaultLoggerProvider();
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return defaultLoggerProvider;
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}
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private static LoggerProvider determineDefaultLoggerProvider()
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{
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if (isClassAvailable("org.slf4j.impl.StaticLoggerBinder"))
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{
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if (isClassAvailable("org.slf4j.impl.JDK14LoggerFactory")) return LoggerProvider.JAVA;
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if (isClassAvailable("org.slf4j.impl.Log4jLoggerFactory")) return LoggerProvider.LOG4J;
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if (!isClassAvailable("org.slf4j.impl.JCLLoggerFactory")) return LoggerProvider.SLF4J;
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// fall through to next check if SLF4J is configured to use JCL
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}
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//if (isClassAvailable("org.apache.commons.logging.Log"))
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//{
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// final String logClassName = org.apache.commons.logging.LogFactory.getLog("test").getClass().getName();
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// if (logClassName.equals("org.apache.commons.logging.impl.Jdk14Logger")) return LoggerProvider.JAVA;
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// if (logClassName.equals("org.apache.commons.logging.impl.Log4JLogger")) return LoggerProvider.LOG4J;
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// return LoggerProvider.JCL;
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//}
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if (isClassAvailable("org.apache.log4j.Logger")) return LoggerProvider.LOG4J;
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return LoggerProvider.JAVA;
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}
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private static boolean isClassAvailable(final String className)
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{
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try
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{
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Class.forName(className);
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return true;
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}
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catch (Throwable t)
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{
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return false;
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}
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}
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}
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