/*

 *   StarOffice News Server

 *   see AUTHORS for the list of contributors

 *

 *   This program is free software: you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, either version 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.so.news;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.PrintStream;

import java.util.Date;

/**

 * Provides logging and debugging methods.

 * @author Christian Lins

 */

public class Debug

{

  private static Debug instance = null;

  /**

   * Returns the singelton instance of this class.

   */

  public static Debug getInstance()

  {

    if(instance == null)

      instance = new Debug();

    return instance;

  }

  private PrintStream out = System.err;

  /**

   * This class is a singelton class. The constructor is private to prevent

   * the creation of more than one instance.

   */

  private Debug()

  {

    try

    {

      String filename = Config.getInstance().get(Config.CONFIG_N3TPD_LOGFILE, "n3tpd.log");

      this.out = new PrintStream(new FileOutputStream(filename));

    }

    catch(IOException e)

    {

      e.printStackTrace();

    }

  }

  /**

   * Returns the debug output PrintStream. By default this is System.err.

   */

  public PrintStream getStream()

  {

    return out;

  }

  /**

   * Writes the given message to the debug output.

   * @param msg A String message or an object.

   */

  public void log(Object msg)

  {

    log(out, msg);

    log(System.out, msg);

  }

  /**

   * Writes the given debug message to the given PrintStream.

   * @param out

   * @param msg

   */

  public void log(PrintStream out, Object msg)

  {

    out.print(new Date().toString());

    out.print(": ");

    out.println(msg.toString());

    out.flush();

  }

}