src/org/sonews/daemon/command/ListGroupCommand.java
changeset 36 c404a87db5b7
parent 20 6ae5e4f8329b
child 37 74139325d305
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/org/sonews/daemon/command/ListGroupCommand.java	Sun Aug 29 17:43:58 2010 +0200
     1.3 @@ -0,0 +1,94 @@
     1.4 +/*
     1.5 + *   SONEWS News Server
     1.6 + *   see AUTHORS for the list of contributors
     1.7 + *
     1.8 + *   This program is free software: you can redistribute it and/or modify
     1.9 + *   it under the terms of the GNU General Public License as published by
    1.10 + *   the Free Software Foundation, either version 3 of the License, or
    1.11 + *   (at your option) any later version.
    1.12 + *
    1.13 + *   This program is distributed in the hope that it will be useful,
    1.14 + *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 + *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 + *   GNU General Public License for more details.
    1.17 + *
    1.18 + *   You should have received a copy of the GNU General Public License
    1.19 + *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 + */
    1.21 +
    1.22 +package org.sonews.daemon.command;
    1.23 +
    1.24 +import java.io.IOException;
    1.25 +import java.util.List;
    1.26 +import org.sonews.daemon.NNTPConnection;
    1.27 +import org.sonews.storage.Channel;
    1.28 +import org.sonews.storage.StorageBackendException;
    1.29 +
    1.30 +/**
    1.31 + * Class handling the LISTGROUP command.
    1.32 + * @author Christian Lins
    1.33 + * @author Dennis Schwerdel
    1.34 + * @since n3tpd/0.1
    1.35 + */
    1.36 +public class ListGroupCommand implements Command
    1.37 +{
    1.38 +
    1.39 +  @Override
    1.40 +  public String[] getSupportedCommandStrings()
    1.41 +  {
    1.42 +    return new String[]{"LISTGROUP"};
    1.43 +  }
    1.44 +
    1.45 +  @Override
    1.46 +  public boolean hasFinished()
    1.47 +  {
    1.48 +    return true;
    1.49 +  }
    1.50 +
    1.51 +  @Override
    1.52 +  public String impliedCapability()
    1.53 +  {
    1.54 +    return null;
    1.55 +  }
    1.56 +
    1.57 +  @Override
    1.58 +  public boolean isStateful()
    1.59 +  {
    1.60 +    return false;
    1.61 +  }
    1.62 +
    1.63 +  @Override
    1.64 +  public void processLine(NNTPConnection conn, final String commandName, byte[] raw)
    1.65 +    throws IOException, StorageBackendException
    1.66 +  {
    1.67 +    final String[] command = commandName.split(" ");
    1.68 +
    1.69 +    Channel group;
    1.70 +    if(command.length >= 2)
    1.71 +    {
    1.72 +      group = Channel.getByName(command[1]);
    1.73 +    }
    1.74 +    else
    1.75 +    {
    1.76 +      group = conn.getCurrentChannel();
    1.77 +    }
    1.78 +
    1.79 +    if (group == null)
    1.80 +    {
    1.81 +      conn.println("412 no group selected; use GROUP <group> command");
    1.82 +      return;
    1.83 +    }
    1.84 +
    1.85 +    List<Long> ids = group.getArticleNumbers();
    1.86 +    conn.println("211 " + ids.size() + " " +
    1.87 +      group.getFirstArticleNumber() + " " + 
    1.88 +      group.getLastArticleNumber() + " list of article numbers follow");
    1.89 +    for(long id : ids)
    1.90 +    {
    1.91 +      // One index number per line
    1.92 +      conn.println(Long.toString(id));
    1.93 +    }
    1.94 +    conn.println(".");
    1.95 +  }
    1.96 +
    1.97 +}