chris@0: /*
chris@0:  *   StarOffice News Server
chris@0:  *   see AUTHORS for the list of contributors
chris@0:  *
chris@0:  *   This program is free software: you can redistribute it and/or modify
chris@0:  *   it under the terms of the GNU General Public License as published by
chris@0:  *   the Free Software Foundation, either version 3 of the License, or
chris@0:  *   (at your option) any later version.
chris@0:  *
chris@0:  *   This program is distributed in the hope that it will be useful,
chris@0:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@0:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@0:  *   GNU General Public License for more details.
chris@0:  *
chris@0:  *   You should have received a copy of the GNU General Public License
chris@0:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@0:  */
chris@0: 
chris@0: package com.so.news;
chris@0: 
chris@0: import java.io.FileOutputStream;
chris@0: import java.io.IOException;
chris@0: import java.io.PrintStream;
chris@0: import java.util.Date;
chris@0: 
chris@0: /**
chris@0:  * Provides logging and debugging methods.
chris@0:  * @author Christian Lins
chris@0:  */
chris@0: public class Debug
chris@0: {
chris@0:   private static Debug instance = null;
chris@0:   
chris@0:   /**
chris@0:    * Returns the singelton instance of this class.
chris@0:    */
chris@0:   public static Debug getInstance()
chris@0:   {
chris@0:     if(instance == null)
chris@0:       instance = new Debug();
chris@0:     
chris@0:     return instance;
chris@0:   }
chris@0:   
chris@0:   private PrintStream out = System.err;
chris@0:   
chris@0:   /**
chris@0:    * This class is a singelton class. The constructor is private to prevent
chris@0:    * the creation of more than one instance.
chris@0:    */
chris@0:   private Debug()
chris@0:   {
chris@0:     try
chris@0:     {
chris@0:       String filename = Config.getInstance().get(Config.CONFIG_N3TPD_LOGFILE, "n3tpd.log");
chris@0:       
chris@0:       this.out = new PrintStream(new FileOutputStream(filename));
chris@0:     }
chris@0:     catch(IOException e)
chris@0:     {
chris@0:       e.printStackTrace();
chris@0:     }
chris@0:   }
chris@0:   
chris@0:   /**
chris@0:    * Returns the debug output PrintStream. By default this is System.err.
chris@0:    */
chris@0:   public PrintStream getStream()
chris@0:   {
chris@0:     return out;
chris@0:   }
chris@0:   
chris@0:   /**
chris@0:    * Writes the given message to the debug output.
chris@0:    * @param msg A String message or an object.
chris@0:    */
chris@0:   public void log(Object msg)
chris@0:   {
chris@0:     log(out, msg);
chris@0:     log(System.out, msg);
chris@0:   }
chris@0:   
chris@0:   /**
chris@0:    * Writes the given debug message to the given PrintStream.
chris@0:    * @param out
chris@0:    * @param msg
chris@0:    */
chris@0:   public void log(PrintStream out, Object msg)
chris@0:   {
chris@0:     out.print(new Date().toString());
chris@0:     out.print(": ");
chris@0:     out.println(msg.toString());
chris@0:     out.flush();
chris@0:   }
chris@0: }