org/sonews/web/SonewsPeerServlet.java
author chris <chris@marvin>
Fri, 26 Jun 2009 16:48:50 +0200
changeset 1 6fceb66e1ad7
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.
chris@1
     1
/*
chris@1
     2
 *   SONEWS News Server
chris@1
     3
 *   see AUTHORS for the list of contributors
chris@1
     4
 *
chris@1
     5
 *   This program is free software: you can redistribute it and/or modify
chris@1
     6
 *   it under the terms of the GNU General Public License as published by
chris@1
     7
 *   the Free Software Foundation, either version 3 of the License, or
chris@1
     8
 *   (at your option) any later version.
chris@1
     9
 *
chris@1
    10
 *   This program is distributed in the hope that it will be useful,
chris@1
    11
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@1
    12
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@1
    13
 *   GNU General Public License for more details.
chris@1
    14
 *
chris@1
    15
 *   You should have received a copy of the GNU General Public License
chris@1
    16
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@1
    17
 */
chris@1
    18
chris@1
    19
package org.sonews.web;
chris@1
    20
chris@1
    21
import java.io.IOException;
chris@1
    22
import java.util.HashSet;
chris@1
    23
import javax.servlet.http.HttpServletRequest;
chris@1
    24
import javax.servlet.http.HttpServletResponse;
chris@1
    25
import org.sonews.util.StringTemplate;
chris@1
    26
chris@1
    27
/**
chris@1
    28
 * Servlet that shows the Peers and the Peering Rules.
chris@1
    29
 * @author Christian Lins
chris@1
    30
 * @since sonews/0.5.0
chris@1
    31
 */
chris@1
    32
public class SonewsPeerServlet extends AbstractSonewsServlet
chris@1
    33
{
chris@1
    34
chris@1
    35
  private static final long serialVersionUID = 245345346356L;
chris@1
    36
  
chris@1
    37
  @Override
chris@1
    38
  public void doGet(HttpServletRequest req, HttpServletResponse resp)
chris@1
    39
    throws IOException
chris@1
    40
  {
chris@1
    41
    synchronized(this)
chris@1
    42
    {
chris@1
    43
      connectToNewsserver();
chris@1
    44
      StringTemplate tmpl = getTemplate("SonewsPeerServlet.tmpl");
chris@1
    45
chris@1
    46
      // Read peering rules from newsserver
chris@1
    47
      printlnToNewsserver("XDAEMON LIST PEERINGRULES");
chris@1
    48
      String line = readlnFromNewsserver();
chris@1
    49
      if(!line.startsWith("200 "))
chris@1
    50
      {
chris@1
    51
        throw new IOException("Unexpected reply: " + line);
chris@1
    52
      }
chris@1
    53
chris@1
    54
      // Create FEED_RULES String
chris@1
    55
      HashSet<String> peers        = new HashSet<String>();
chris@1
    56
      StringBuilder   feedRulesStr = new StringBuilder();
chris@1
    57
      for(;;)
chris@1
    58
      {
chris@1
    59
        line = readlnFromNewsserver();
chris@1
    60
        if(line.equals("."))
chris@1
    61
        {
chris@1
    62
          break;
chris@1
    63
        }
chris@1
    64
        else
chris@1
    65
        {
chris@1
    66
          feedRulesStr.append(line);
chris@1
    67
          feedRulesStr.append("<br/>");
chris@1
    68
chris@1
    69
          String[] lineChunks = line.split(" ");
chris@1
    70
          peers.add(lineChunks[1]);
chris@1
    71
        }
chris@1
    72
      }
chris@1
    73
chris@1
    74
      // Create PEERS string
chris@1
    75
      StringBuilder peersStr = new StringBuilder();
chris@1
    76
      for(String peer : peers)
chris@1
    77
      {
chris@1
    78
        peersStr.append(peer);
chris@1
    79
        peersStr.append("<br/>");
chris@1
    80
      }
chris@1
    81
chris@1
    82
      // Set server name
chris@1
    83
      tmpl.set("PEERS", peersStr.toString());
chris@1
    84
      tmpl.set("PEERING_RULES", feedRulesStr.toString());
chris@1
    85
      tmpl.set("SERVERNAME", hello.split(" ")[2]);
chris@1
    86
      tmpl.set("TITLE", "Peers");
chris@1
    87
chris@1
    88
      resp.getWriter().println(tmpl.toString());
chris@1
    89
      resp.getWriter().flush();
chris@1
    90
      resp.setStatus(HttpServletResponse.SC_OK);
chris@1
    91
      disconnectFromNewsserver();
chris@1
    92
    }
chris@1
    93
  }
chris@1
    94
  
chris@1
    95
}