sonews-drupal: src/org/sonews/daemon/command/GroupCommand.java@2ed2497d4559

     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  */

    19 package org.sonews.daemon.command;

    21 import java.io.IOException;

    22 import org.sonews.daemon.NNTPConnection;

    23 import org.sonews.storage.Group;

    24 import org.sonews.storage.StorageBackendException;

    25 import org.sonews.storage.StorageManager;

    27 /**

    28  * Class handling the GROUP command.

    29  * <pre>

    30  *  Syntax

    31  *    GROUP group

    32  *

    33  *  Responses

    34  *    211 number low high group     Group successfully selected

    35  *    411                           No such newsgroup

    36  *

    37  *  Parameters

    38  *    group     Name of newsgroup

    39  *    number    Estimated number of articles in the group

    40  *    low       Reported low water mark

    41  *    high      Reported high water mark

    42  * </pre>

    43  * (from RFC 3977)

    44  *

    45  * @author Christian Lins

    46  * @author Dennis Schwerdel

    47  * @since n3tpd/0.1

    48  */

    49 public class GroupCommand implements Command

    50 {

    52 	@Override

    53 	public String[] getSupportedCommandStrings()

    54 	{

    55 		return new String[] {"GROUP"};

    56 	}

    58 	@Override

    59 	public boolean hasFinished()

    60 	{

    61 		return true;

    62 	}

    64 	@Override

    65 	public String impliedCapability()

    66 	{

    67 		return null;

    68 	}

    70 	@Override

    71 	public boolean isStateful()

    72 	{

    73 		return true;

    74 	}

    76 	@Override

    77 	public void processLine(NNTPConnection conn, final String line, byte[] raw)

    78 		throws IOException, StorageBackendException

    79 	{

    80 		final String[] command = line.split(" ");

    82 		Group group;

    83 		if (command.length >= 2) {

    84 			group = StorageManager.current().getGroup(command[1]);

    85 			if (group == null || group.isDeleted()) {

    86 				conn.println("411 no such news group");

    87 			} else {

    88 				conn.setCurrentGroup(group);

    89 				conn.println("211 " + group.getPostingsCount() + " " + group.getFirstArticleNumber()

    90 					+ " " + group.getLastArticleNumber() + " " + group.getName() + " group selected");

    91 			}

    92 		} else {

    93 			conn.println("500 no group name given");

    94 		}

    95 	}

    96 }

author	František Kučera <franta-hg@frantovo.cz>
	Mon Oct 17 19:12:42 2011 +0200 (2011-10-17)
changeset 90	2ed2497d4559
parent 37	74139325d305
permissions	-rwxr-xr-x