/*

 *   StarOffice News Server

 *   see AUTHORS for the list of contributors

 *

 *   This program is free software: you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, either version 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.so.news.command;

import java.util.List;

import com.so.news.NNTPConnection;

import com.so.news.storage.Article;

import com.so.news.storage.Group;

/**

 * Class handling the LISTGROUP command.

 * @author Christian Lins

 * @author Dennis Schwerdel

 */

public class ListGroupCommand extends Command

{

  public ListGroupCommand(NNTPConnection conn)

  {

    super(conn);

  }

  public boolean process(String[] command) 

    throws Exception

  {

    String commandName = command[0];

    if (!commandName.equalsIgnoreCase("LISTGROUP"))

      return false;

    // untested, RFC977 complient

    Group group = null;

    if (command.length >= 2)

    {

      group = Group.getByName(command[1]);

    }

    else

    {

      group = getCurrentGroup();

    }

    if (group == null)

    {

      printStatus(412, "Not currently in newsgroup");

      return true;

    }

    List<Article> list = group.getAllArticles();

    printStatus(211, "list of article numbers follow"); // argh, bad english in

    // RFC

    for (Article a : list)

    {

      printTextLine("" + a.getNumberInGroup());

    }

    println(".");

    flush();

    return true;

  }

}