Coverage Report - org.melati.test.SessionAnalysisServlet
 
Classes in this File Line Coverage Branch Coverage Complexity
SessionAnalysisServlet
71%
53/74
50%
9/18
5.5
 
 1   
 /*
 2   
  * $Source$
 3   
  * $Revision$
 4   
  *
 5   
  * Copyright (C) 2001 Myles Chippendale
 6   
  *
 7   
  * Part of Melati (http://melati.org), a framework for the rapid
 8   
  * development of clean, maintainable web applications.
 9   
  *
 10   
  * Melati is free software; Permission is granted to copy, distribute
 11   
  * and/or modify this software under the terms either:
 12   
  *
 13   
  * a) the GNU General Public License as published by the Free Software
 14   
  *    Foundation; either version 2 of the License, or (at your option)
 15   
  *    any later version,
 16   
  *
 17   
  *    or
 18   
  *
 19   
  * b) any version of the Melati Software License, as published
 20   
  *    at http://melati.org
 21   
  *
 22   
  * You should have received a copy of the GNU General Public License and
 23   
  * the Melati Software License along with this program;
 24   
  * if not, write to the Free Software Foundation, Inc.,
 25   
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
 26   
  * GNU General Public License and visit http://melati.org to obtain the
 27   
  * Melati Software License.
 28   
  *
 29   
  * Feel free to contact the Developers of Melati (http://melati.org),
 30   
  * if you would like to work out a different arrangement than the options
 31   
  * outlined here.  It is our intention to allow Melati to be used by as
 32   
  * wide an audience as possible.
 33   
  *
 34   
  * This program is distributed in the hope that it will be useful,
 35   
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 36   
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 37   
  * GNU General Public License for more details.
 38   
  *
 39   
  * Contact details for copyright holder:
 40   
  *
 41   
  *     Mylesc Chippendale <mylesc At paneris.org>
 42   
  *     http://paneris.org/
 43   
  *     29 Stanley Road, Oxford, OX4 1QY, UK
 44   
  */
 45   
 
 46   
 package org.melati.test;
 47   
 
 48   
 import java.io.IOException;
 49   
 import java.text.NumberFormat;
 50   
 import java.util.Date;
 51   
 import java.util.Enumeration;
 52   
 
 53   
 import javax.servlet.ServletException;
 54   
 
 55   
 import org.melati.Melati;
 56   
 import org.melati.poem.Database;
 57   
 import org.melati.poem.PoemThread;
 58   
 import org.melati.poem.SessionToken;
 59   
 import org.melati.poem.transaction.Transaction;
 60   
 import org.melati.servlet.ConfigServlet;
 61   
 import org.melati.util.MelatiWriter;
 62   
 
 63   
 /**
 64   
  * Displays information about the status of this JVM and the databases
 65   
  * running in it. Well, with JServ it's for this servlet zone.
 66   
  *
 67   
  * It shows us information about any Poem sessions running and
 68   
  * each transaction (think 'connection to') in a database.
 69   
  */
 70   
 
 71  1 
 public class SessionAnalysisServlet extends ConfigServlet {
 72   
   private static final long serialVersionUID = 1L;
 73   
   private MelatiWriter output;
 74   
 
 75   
   protected void doConfiguredRequest(Melati melati)
 76   
       throws ServletException, IOException {
 77   
 
 78  1 
     melati.getResponse().setContentType("text/html");
 79  1 
     output = melati.getWriter();
 80  1 
     Date now = new Date();
 81  1 
     println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD "
 82   
                  + "HTML 4.01 Transitional//EN\">\n");
 83  1 
     println("<html>\n");
 84  1 
     println("<head>\n");
 85  1 
     println("<title>Transaction Analysis</title>\n");
 86  1 
     String repeat = melati.getRequest().getParameter("repeat");
 87  1 
     if (repeat != null)
 88  0 
       println("<META HTTP-EQUIV=\"Refresh\" CONTENT=\""
 89   
                     + repeat + "; URL="
 90  0 
                     + melati.getRequest().getRequestURI() + "?repeat="
 91   
                     + repeat + "\">");
 92  2 
     println("  <link rel='stylesheet' title='Default' href='" +
 93  1 
                  melati.getConfig().getStaticURL() + "/admin.css' \n" +
 94   
                  "type='text/css' media='screen'>\n");
 95  1 
     println("</head>");
 96  1 
     println("<body>");
 97  1 
     println("<h1>Transactions Analysis</h1>");
 98  1 
     println("<p>Run at " + now + "</p>\n");
 99  2 
     println("<p>JVM Free memory: " +
 100  1 
    NumberFormat.getInstance().format(Runtime.getRuntime().freeMemory())
 101   
                   + "</p>\n"
 102   
                   + "<p>JVM Total memory: " +
 103  1 
    NumberFormat.getInstance().format(Runtime.getRuntime().totalMemory())
 104   
                   + "</p>\n"
 105   
                   + "<form action=''>Reload every "
 106   
                   + "<input name='repeat' size='5' value='"
 107   
                   + repeat + "'> seconds <input type=submit></form>\n");
 108   
 
 109   
 
 110  1 
     println("<h2>Poem sessions</h2>\n");
 111   
 
 112  1 
     Enumeration<SessionToken> e = PoemThread.openSessions().elements();
 113   
 
 114  1 
     int totalSessions = 0;
 115  1 
     while(e.hasMoreElements()) {
 116  0 
       totalSessions++;
 117  0 
       SessionToken token = e.nextElement();
 118  0 
       println("<table border='1' cellspacing='0' cellpadding='1'>");
 119  0 
       println(" <tr><th colspan='2'>Session: " + token + "</td></tr>");
 120  0 
       println(" <tr><th>Running for</th><td>" + (now.getTime() - token.getStarted()) + " ms</td></tr>");
 121  0 
       println(" <tr><th>Thread</th><td>" + token.getThread() + "</td></tr>");
 122  0 
       println(" <tr><th>PoemTransaction</th><td>"
 123  0 
                  + token.getTransaction() + "<br>(Database:"
 124  0 
                  + token.getTransaction().getDatabase() + ")</td></tr>");
 125  0 
       println(" <tr><th>PoemTask</th><td>" + token.getTask() + "</td></tr>\n");
 126  0 
       Enumeration<Object> o = token.toTidy().elements();
 127  0 
       if(o.hasMoreElements()) {
 128  0 
         println("<tr><th>Open: </th><td>");
 129  0 
         while (o.hasMoreElements()) {
 130  0 
           println(o.nextElement() + "<br>");
 131   
         }
 132  0 
         println("</td></tr>\n");
 133   
       }
 134  0 
       println("</table>\n");
 135  0 
     }
 136  1 
     println("<h4>Poem sessions in use: " + totalSessions + "</h4>\n");
 137   
 
 138  1 
     println("<h2>Initialised Databases</h2>");
 139  1 
     println("<table border=1 cellspacing=0 cellpadding=1>");
 140  1 
     println("<tr><th>Database</th><th>PoemTransaction</th>");
 141  1 
     println("<th>Free</th><th>Blocked</th></tr>\n");
 142   
 
 143  1 
     int totalDbs = 0;
 144  1 
     Enumeration<Database> dbs = org.melati.LogicalDatabase.initialisedDatabases().
 145  1 
                                                    elements();
 146  4 
     while(dbs.hasMoreElements()) {
 147  3 
       totalDbs++;
 148  3 
       Database db = dbs.nextElement();
 149  3 
       println("<tr>");
 150  3 
       println(" <td>" + db.getDisplayName() + "</td>");
 151  3 
       println(" <td>" + db + "</td>");
 152  3 
       println(" <td>" + db.getFreeTransactionsCount() + "</td>");
 153  3 
       println(" <td>" + (db.transactionsMax() - db.getFreeTransactionsCount()) + "</td>");
 154   
       //println(" <td>" + db.getLastQuery() + "</td>");
 155  3 
       println("</tr>");
 156  27 
       for(int i=0; i < db.transactionsMax(); i++) {
 157  24 
         boolean isFree = db.isFree(db.poemTransaction(i));
 158  24 
         Transaction blockedOn = db.poemTransaction(i).getBlockedOn();
 159  48 
         println("<tr><td>&nbsp</td>\n"
 160  24 
                      + "<td>" + db.poemTransaction(i) + "</td>\n"
 161   
                      + "<td bgcolor=" + (isFree ? "green" : "red") + ">"
 162   
                      + isFree + "</td>\n"
 163   
                      + "<td bgcolor=" + (blockedOn != null ? "red" : "green") + ">"
 164  0 
                      + (blockedOn != null  ? blockedOn.toString() : "&nbsp;") + "</td>\n"
 165   
                      + "</tr>\n");
 166   
       }
 167  3 
     }
 168  1 
     println("</table>\n");
 169  1 
     println("<h4>Initialised databases in use: " + totalDbs + "</h4>");
 170   
 
 171   
 
 172  1 
     println("</body>\n");
 173  1 
     println("</html>\n");
 174  1 
   }
 175   
 
 176   
   void println(String in) throws IOException {
 177  62 
     output.write(in + "\n");
 178  62 
   }
 179   
 }
 180   
 
 181   
 
 182   
 
 183   
 
 184   
 
 185   
 
Report generated by Cobertura 2.0.3 on 25/06/15 10:36.