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: 
cli@37: 	@Override
cli@37: 	public String[] getSupportedCommandStrings()
cli@37: 	{
cli@37: 		return new String[] {"LISTGROUP"};
cli@37: 	}
chris@1: 
cli@37: 	@Override
cli@37: 	public boolean hasFinished()
cli@37: 	{
cli@37: 		return true;
cli@37: 	}
chris@1: 
cli@37: 	@Override
cli@37: 	public String impliedCapability()
cli@37: 	{
cli@37: 		return null;
cli@37: 	}
cli@20: 
cli@37: 	@Override
cli@37: 	public boolean isStateful()
cli@37: 	{
cli@37: 		return false;
cli@37: 	}
chris@3: 
cli@37: 	@Override
cli@37: 	public void processLine(NNTPConnection conn, final String commandName, byte[] raw)
cli@37: 		throws IOException, StorageBackendException
cli@37: 	{
cli@37: 		final String[] command = commandName.split(" ");
chris@1: 
cli@37: 		Channel group;
cli@37: 		if (command.length >= 2) {
cli@37: 			group = Channel.getByName(command[1]);
cli@37: 		} else {
cli@37: 			group = conn.getCurrentChannel();
cli@37: 		}
chris@1: 
cli@37: 		if (group == null) {
cli@37: 			conn.println("412 no group selected; use GROUP <group> command");
cli@37: 			return;
cli@37: 		}
chris@1: 
cli@37: 		List<Long> ids = group.getArticleNumbers();
cli@37: 		conn.println("211 " + ids.size() + " "
cli@37: 			+ group.getFirstArticleNumber() + " "
cli@37: 			+ group.getLastArticleNumber() + " list of article numbers follow");
cli@37: 		for (long id : ids) {
cli@37: 			// One index number per line
cli@37: 			conn.println(Long.toString(id));
cli@37: 		}
cli@37: 		conn.println(".");
cli@37: 	}
chris@1: }