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.util.List;
chris@1: import org.sonews.daemon.NNTPConnection;
chris@3: import org.sonews.storage.Channel;
chris@3: import org.sonews.storage.StorageBackendException;
chris@1: 
chris@1: /**
chris@1:  * Class handling the LISTGROUP command.
chris@1:  * @author Christian Lins
chris@1:  * @author Dennis Schwerdel
chris@1:  * @since n3tpd/0.1
chris@1:  */
chris@3: public class ListGroupCommand implements Command
chris@1: {
chris@1: 
chris@3:   @Override
chris@3:   public String[] getSupportedCommandStrings()
chris@1:   {
chris@3:     return new String[]{"LISTGROUP"};
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
cli@20:   public String impliedCapability()
cli@20:   {
cli@20:     return null;
cli@20:   }
cli@20: 
cli@20:   @Override
chris@3:   public boolean isStateful()
chris@3:   {
chris@3:     return false;
chris@3:   }
chris@3: 
chris@3:   @Override
chris@3:   public void processLine(NNTPConnection conn, final String commandName, byte[] raw)
chris@3:     throws IOException, StorageBackendException
chris@1:   {
chris@1:     final String[] command = commandName.split(" ");
chris@1: 
chris@3:     Channel group;
chris@1:     if(command.length >= 2)
chris@1:     {
chris@3:       group = Channel.getByName(command[1]);
chris@1:     }
chris@1:     else
chris@1:     {
chris@3:       group = conn.getCurrentChannel();
chris@1:     }
chris@1: 
chris@1:     if (group == null)
chris@1:     {
chris@3:       conn.println("412 no group selected; use GROUP <group> command");
chris@1:       return;
chris@1:     }
chris@1: 
chris@1:     List<Long> ids = group.getArticleNumbers();
chris@3:     conn.println("211 " + ids.size() + " " +
chris@1:       group.getFirstArticleNumber() + " " + 
chris@1:       group.getLastArticleNumber() + " list of article numbers follow");
chris@1:     for(long id : ids)
chris@1:     {
chris@1:       // One index number per line
chris@3:       conn.println(Long.toString(id));
chris@1:     }
chris@3:     conn.println(".");
chris@1:   }
chris@1: 
chris@1: }