/*

  *   SONEWS 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 org.sonews.daemon.command;

 import java.io.IOException;

 import java.nio.charset.Charset;

 import java.sql.SQLException;

 import org.sonews.daemon.NNTPConnection;

 import org.sonews.daemon.storage.Article;

 import org.sonews.daemon.storage.Group;

 /**

  * Base class for all command handling classes.

  * @author Christian Lins

  * @author Dennis Schwerdel

  * @since n3tpd/0.1

  */

 public abstract class AbstractCommand

 {

   protected NNTPConnection connection;

   public AbstractCommand(final NNTPConnection connection)

   {

     this.connection = connection;

   }

   protected Article getCurrentArticle()

   {

     return connection.getCurrentArticle();

   }

   protected Group getCurrentGroup()

   {

     return connection.getCurrentGroup();

   }

   protected void setCurrentArticle(final Article current)

   {

     connection.setCurrentArticle(current);

   }

   protected void setCurrentGroup(final Group current)

   {

     connection.setCurrentGroup(current);

   }

   public abstract void processLine(String line)

     throws IOException, SQLException;

   protected void println(final String line)

     throws IOException

   {

     connection.println(line);

   }

   protected void println(final String line, final Charset charset)

     throws IOException

   {

     connection.println(line, charset);

   }

   protected void printStatus(final int status, final String msg)

     throws IOException

   {

     println(status + " " + msg);

   }

   public abstract boolean hasFinished();

 }