2002-01-30 21:22:28 -05:00
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2002-01-31 13:57:10 -05:00
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/*
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* ====================================================================
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2002-01-30 21:22:28 -05:00
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2002 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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package org.apache.poi.util;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.util.*;
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/**
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* Provides logging without clients having to mess with
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* configuration/initialization.
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*
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* @author Andrew C. Oliver (acoliver at apache dot org)
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* @author Marc Johnson (mjohnson at apache dot org)
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2002-03-14 06:05:10 -05:00
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* @author Nicola Ken Barozzi (nicolaken at apache.org)
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2002-01-30 21:22:28 -05:00
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*/
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public class POILogFactory
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{
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// map of POILogger instances, with classes as keys
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2002-03-14 06:05:10 -05:00
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private static Map _loggers = new HashMap();;
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2002-01-30 21:22:28 -05:00
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/**
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* construct a POILogFactory.
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*/
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2002-03-14 06:05:10 -05:00
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private POILogFactory()
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2002-01-30 21:22:28 -05:00
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{
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}
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/**
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* Get a logger, based on a class name
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*
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* @param theclass the class whose name defines the log
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*
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* @return a POILogger for the specified class
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*/
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2002-03-14 06:05:10 -05:00
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public static POILogger getLogger(final Class theclass)
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2002-03-16 05:16:43 -05:00
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{
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return getLogger(theclass.getName());
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}
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/**
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* Get a logger, based on a String
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*
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* @param cat the String that defines the log
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*
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* @return a POILogger for the specified class
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*/
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public static POILogger getLogger(final String cat)
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2002-01-30 21:22:28 -05:00
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{
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POILogger logger = null;
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2002-01-30 21:22:28 -05:00
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2002-03-16 05:16:43 -05:00
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if (_loggers.containsKey(cat))
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2002-01-30 21:22:28 -05:00
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{
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2002-03-16 05:16:43 -05:00
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logger = ( POILogger ) _loggers.get(cat);
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2002-03-14 06:05:10 -05:00
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}
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else
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{
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2002-06-11 17:07:58 -04:00
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try{
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String loggerClassName = System.getProperty("org.apache.poi.util.POILogger");
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Class loggerClass = Class.forName(loggerClassName);
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logger = ( POILogger ) loggerClass.newInstance();
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}
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catch(Exception e){
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logger = new NullLogger();
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}
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logger.initialize(cat);
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2002-03-16 05:16:43 -05:00
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_loggers.put(cat, logger);
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2002-01-30 21:22:28 -05:00
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}
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return logger;
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}
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2002-03-16 05:16:43 -05:00
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2002-01-30 21:22:28 -05:00
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} // end public class POILogFactory
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