org/sonews/daemon/command/GroupCommand.java
changeset 2 1090e2141798
child 3 2fdc9cc89502
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/org/sonews/daemon/command/GroupCommand.java	Wed Jul 01 10:48:22 2009 +0200
     1.3 @@ -0,0 +1,90 @@
     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.sql.SQLException;
    1.26 +import org.sonews.daemon.NNTPConnection;
    1.27 +import org.sonews.daemon.storage.Group;
    1.28 +
    1.29 +/**
    1.30 + * Class handling the GROUP command.
    1.31 + * <pre>
    1.32 + *  Syntax
    1.33 + *    GROUP group
    1.34 + *
    1.35 + *  Responses
    1.36 + *    211 number low high group     Group successfully selected
    1.37 + *    411                           No such newsgroup
    1.38 + *
    1.39 + *  Parameters
    1.40 + *    group     Name of newsgroup
    1.41 + *    number    Estimated number of articles in the group
    1.42 + *    low       Reported low water mark
    1.43 + *    high      Reported high water mark
    1.44 + * </pre>
    1.45 + * (from RFC 3977)
    1.46 + * 
    1.47 + * @author Christian Lins
    1.48 + * @author Dennis Schwerdel
    1.49 + * @since n3tpd/0.1
    1.50 + */
    1.51 +public class GroupCommand extends AbstractCommand
    1.52 +{
    1.53 +
    1.54 +  public GroupCommand(final NNTPConnection conn)
    1.55 +  {
    1.56 +    super(conn);
    1.57 +  }
    1.58 +
    1.59 +  @Override
    1.60 +  public boolean hasFinished()
    1.61 +  {
    1.62 +    return true;
    1.63 +  }
    1.64 +  
    1.65 +  @Override
    1.66 +  public void processLine(final String line)
    1.67 +    throws IOException, SQLException
    1.68 +  {
    1.69 +    final String[] command = line.split(" ");
    1.70 +
    1.71 +    Group group;
    1.72 +    if(command.length >= 2)
    1.73 +    {
    1.74 +      group = Group.getByName(command[1]);
    1.75 +      if(group == null)
    1.76 +      {
    1.77 +        printStatus(411, "no such news group");
    1.78 +      }
    1.79 +      else
    1.80 +      {
    1.81 +        setCurrentGroup(group);
    1.82 +
    1.83 +        printStatus(211, group.getPostingsCount() + " " + group.getFirstArticleNumber() 
    1.84 +          + " " + group.getLastArticleNumber() + " " + group.getName() + " group selected");
    1.85 +      }
    1.86 +    }
    1.87 +    else
    1.88 +    {
    1.89 +      printStatus(500, "no group name given");
    1.90 +    }
    1.91 +  }
    1.92 +
    1.93 +}