org/sonews/daemon/command/GroupCommand.java
author chris <chris@marvin>
Fri, 26 Jun 2009 16:48:50 +0200
changeset 1 6fceb66e1ad7
child 3 2fdc9cc89502
permissions -rw-r--r--
Hooray... sonews/0.5.0 final

HG: Enter commit message. Lines beginning with 'HG:' are removed.
HG: Remove all lines to abort the collapse operation.
     1 /*
     2  *   SONEWS News Server
     3  *   see AUTHORS for the list of contributors
     4  *
     5  *   This program is free software: you can redistribute it and/or modify
     6  *   it under the terms of the GNU General Public License as published by
     7  *   the Free Software Foundation, either version 3 of the License, or
     8  *   (at your option) any later version.
     9  *
    10  *   This program is distributed in the hope that it will be useful,
    11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  *   GNU General Public License for more details.
    14  *
    15  *   You should have received a copy of the GNU General Public License
    16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17  */
    18 
    19 package org.sonews.daemon.command;
    20 
    21 import java.io.IOException;
    22 import java.sql.SQLException;
    23 import org.sonews.daemon.NNTPConnection;
    24 import org.sonews.daemon.storage.Group;
    25 
    26 /**
    27  * Class handling the GROUP command.
    28  * <pre>
    29  *  Syntax
    30  *    GROUP group
    31  *
    32  *  Responses
    33  *    211 number low high group     Group successfully selected
    34  *    411                           No such newsgroup
    35  *
    36  *  Parameters
    37  *    group     Name of newsgroup
    38  *    number    Estimated number of articles in the group
    39  *    low       Reported low water mark
    40  *    high      Reported high water mark
    41  * </pre>
    42  * (from RFC 3977)
    43  * 
    44  * @author Christian Lins
    45  * @author Dennis Schwerdel
    46  * @since n3tpd/0.1
    47  */
    48 public class GroupCommand extends AbstractCommand
    49 {
    50 
    51   public GroupCommand(final NNTPConnection conn)
    52   {
    53     super(conn);
    54   }
    55 
    56   @Override
    57   public boolean hasFinished()
    58   {
    59     return true;
    60   }
    61   
    62   @Override
    63   public void processLine(final String line)
    64     throws IOException, SQLException
    65   {
    66     final String[] command = line.split(" ");
    67 
    68     Group group;
    69     if(command.length >= 2)
    70     {
    71       group = Group.getByName(command[1]);
    72       if(group == null)
    73       {
    74         printStatus(411, "no such news group");
    75       }
    76       else
    77       {
    78         setCurrentGroup(group);
    79 
    80         printStatus(211, group.getPostingsCount() + " " + group.getFirstArticleNumber() 
    81           + " " + group.getLastArticleNumber() + " " + group.getName() + " group selected");
    82       }
    83     }
    84     else
    85     {
    86       printStatus(500, "no group name given");
    87     }
    88   }
    89 
    90 }