chris@1: /*
chris@1:  *   SONEWS News Server
chris@1:  *   see AUTHORS for the list of contributors
chris@1:  *
chris@1:  *   This program is free software: you can redistribute it and/or modify
chris@1:  *   it under the terms of the GNU General Public License as published by
chris@1:  *   the Free Software Foundation, either version 3 of the License, or
chris@1:  *   (at your option) any later version.
chris@1:  *
chris@1:  *   This program is distributed in the hope that it will be useful,
chris@1:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@1:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@1:  *   GNU General Public License for more details.
chris@1:  *
chris@1:  *   You should have received a copy of the GNU General Public License
chris@1:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@1:  */
chris@1: 
chris@1: package org.sonews.daemon.command;
chris@1: 
chris@1: import java.io.IOException;
chris@1: import java.sql.SQLException;
chris@1: import org.sonews.daemon.NNTPConnection;
chris@1: import org.sonews.daemon.storage.Group;
chris@1: 
chris@1: /**
chris@1:  * Class handling the GROUP command.
chris@1:  * <pre>
chris@1:  *  Syntax
chris@1:  *    GROUP group
chris@1:  *
chris@1:  *  Responses
chris@1:  *    211 number low high group     Group successfully selected
chris@1:  *    411                           No such newsgroup
chris@1:  *
chris@1:  *  Parameters
chris@1:  *    group     Name of newsgroup
chris@1:  *    number    Estimated number of articles in the group
chris@1:  *    low       Reported low water mark
chris@1:  *    high      Reported high water mark
chris@1:  * </pre>
chris@1:  * (from RFC 3977)
chris@1:  * 
chris@1:  * @author Christian Lins
chris@1:  * @author Dennis Schwerdel
chris@1:  * @since n3tpd/0.1
chris@1:  */
chris@1: public class GroupCommand extends AbstractCommand
chris@1: {
chris@1: 
chris@1:   public GroupCommand(final NNTPConnection conn)
chris@1:   {
chris@1:     super(conn);
chris@1:   }
chris@1: 
chris@1:   @Override
chris@1:   public boolean hasFinished()
chris@1:   {
chris@1:     return true;
chris@1:   }
chris@1:   
chris@1:   @Override
chris@1:   public void processLine(final String line)
chris@1:     throws IOException, SQLException
chris@1:   {
chris@1:     final String[] command = line.split(" ");
chris@1: 
chris@1:     Group group;
chris@1:     if(command.length >= 2)
chris@1:     {
chris@1:       group = Group.getByName(command[1]);
chris@1:       if(group == null)
chris@1:       {
chris@1:         printStatus(411, "no such news group");
chris@1:       }
chris@1:       else
chris@1:       {
chris@1:         setCurrentGroup(group);
chris@1: 
chris@1:         printStatus(211, group.getPostingsCount() + " " + group.getFirstArticleNumber() 
chris@1:           + " " + group.getLastArticleNumber() + " " + group.getName() + " group selected");
chris@1:       }
chris@1:     }
chris@1:     else
chris@1:     {
chris@1:       printStatus(500, "no group name given");
chris@1:     }
chris@1:   }
chris@1: 
chris@1: }