org/sonews/daemon/command/NextPrevCommand.java
changeset 35 ed84c8bdd87b
parent 34 9f0b95aafaa3
child 36 c404a87db5b7
     1.1 --- a/org/sonews/daemon/command/NextPrevCommand.java	Sun Aug 29 17:04:25 2010 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,116 +0,0 @@
     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 org.sonews.daemon.NNTPConnection;
    1.26 -import org.sonews.storage.Article;
    1.27 -import org.sonews.storage.Channel;
    1.28 -import org.sonews.storage.StorageBackendException;
    1.29 -
    1.30 -/**
    1.31 - * Class handling the NEXT and LAST command.
    1.32 - * @author Christian Lins
    1.33 - * @author Dennis Schwerdel
    1.34 - * @since n3tpd/0.1
    1.35 - */
    1.36 -public class NextPrevCommand implements Command
    1.37 -{
    1.38 -
    1.39 -  @Override
    1.40 -  public String[] getSupportedCommandStrings()
    1.41 -  {
    1.42 -    return new String[]{"NEXT", "PREV"};
    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 line, byte[] raw)
    1.65 -    throws IOException, StorageBackendException
    1.66 -  {
    1.67 -    final Article currA = conn.getCurrentArticle();
    1.68 -    final Channel currG = conn.getCurrentChannel();
    1.69 -    
    1.70 -    if (currA == null)
    1.71 -    {
    1.72 -      conn.println("420 no current article has been selected");
    1.73 -      return;
    1.74 -    }
    1.75 -    
    1.76 -    if (currG == null)
    1.77 -    {
    1.78 -      conn.println("412 no newsgroup selected");
    1.79 -      return;
    1.80 -    }
    1.81 -    
    1.82 -    final String[] command = line.split(" ");
    1.83 -
    1.84 -    if(command[0].equalsIgnoreCase("NEXT"))
    1.85 -    {
    1.86 -      selectNewArticle(conn, currA, currG, 1);
    1.87 -    }
    1.88 -    else if(command[0].equalsIgnoreCase("PREV"))
    1.89 -    {
    1.90 -      selectNewArticle(conn, currA, currG, -1);
    1.91 -    }
    1.92 -    else
    1.93 -    {
    1.94 -      conn.println("500 internal server error");
    1.95 -    }
    1.96 -  }
    1.97 -  
    1.98 -  private void selectNewArticle(NNTPConnection conn, Article article, Channel grp,
    1.99 -    final int delta)
   1.100 -    throws IOException, StorageBackendException
   1.101 -  {
   1.102 -    assert article != null;
   1.103 -
   1.104 -    article = grp.getArticle(grp.getIndexOf(article) + delta);
   1.105 -
   1.106 -    if(article == null)
   1.107 -    {
   1.108 -      conn.println("421 no next article in this group");
   1.109 -    }
   1.110 -    else
   1.111 -    {
   1.112 -      conn.setCurrentArticle(article);
   1.113 -      conn.println("223 " + conn.getCurrentChannel().getIndexOf(article)
   1.114 -                    + " " + article.getMessageID()
   1.115 -                    + " article retrieved - request text separately");
   1.116 -    }
   1.117 -  }
   1.118 -
   1.119 -}