LoggerFactorySingleton


1   /**
2    * Copyright (C) 2001-2003 France Telecom R&D
3    *
4    * This library is free software; you can redistribute it and/or
5    * modify it under the terms of the GNU Lesser General Public
6    * License as published by the Free Software Foundation; either
7    * version 2 of the License, or (at your option) any later version.
8    *
9    * This library is distributed in the hope that it will be useful,
10   * but WITHOUT ANY WARRANTY; without even the implied warranty of
11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   * Lesser General Public License for more details.
13   *
14   * You should have received a copy of the GNU Lesser General Public
15   * License along with this library; if not, write to the Free Software
16   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17   */
18  
19  package org.objectweb.util.monolog.wrapper.common;
20  
21  import org.objectweb.util.monolog.api.LoggerFactory;
22  
23  /**
24   * This static class is only used to reference one LoggerFactory instance.
25   *
26   * @author Sebastien Chassande-Barrioz
27   */
28  public class LoggerFactorySingleton {
29  
30      static private LoggerFactory lf = null;
31  
32      static public LoggerFactory getLoggerFactory(String   classname)
33          throws ClassNotFoundException  , InstantiationException  ,
34          IllegalAccessException   {
35  
36          if (lf == null) {
37              lf = (LoggerFactory) Class.forName(classname).newInstance();
38          }
39          return lf;
40      }
41  }
42

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