org/sonews/util/Stats.java
changeset 2 1090e2141798
child 3 2fdc9cc89502
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/org/sonews/util/Stats.java	Wed Jul 01 10:48:22 2009 +0200
     1.3 @@ -0,0 +1,194 @@
     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.util;
    1.23 +
    1.24 +import java.sql.SQLException;
    1.25 +import java.util.Calendar;
    1.26 +import org.sonews.daemon.storage.Database;
    1.27 +import org.sonews.daemon.storage.Group;
    1.28 +
    1.29 +/**
    1.30 + * Class that capsulates statistical data gathering.
    1.31 + * @author Christian Lins
    1.32 + * @since sonews/0.5.0
    1.33 + */
    1.34 +public final class Stats 
    1.35 +{
    1.36 +      
    1.37 +  public static final byte CONNECTIONS    = 1;
    1.38 +  public static final byte POSTED_NEWS    = 2;
    1.39 +  public static final byte GATEWAYED_NEWS = 3;
    1.40 +  public static final byte FEEDED_NEWS    = 4;
    1.41 +  public static final byte MLGW_RUNSTART  = 5;
    1.42 +  public static final byte MLGW_RUNEND    = 6;
    1.43 +
    1.44 +  private static Stats instance = new Stats();
    1.45 +  
    1.46 +  public static Stats getInstance()
    1.47 +  {
    1.48 +    return Stats.instance;
    1.49 +  }
    1.50 +  
    1.51 +  private Stats() {}
    1.52 +  
    1.53 +  private volatile int connectedClients = 0;
    1.54 +  
    1.55 +  private void addEvent(byte type, String groupname)
    1.56 +  {
    1.57 +    Group group = Group.getByName(groupname);
    1.58 +    if(group != null)
    1.59 +    {
    1.60 +      try
    1.61 +      {
    1.62 +        Database.getInstance().addEvent(
    1.63 +          System.currentTimeMillis(), type, group.getID());
    1.64 +      }
    1.65 +      catch(SQLException ex)
    1.66 +      {
    1.67 +        ex.printStackTrace();
    1.68 +      }
    1.69 +    }
    1.70 +    else
    1.71 +    {
    1.72 +      Log.msg("Group " + groupname + " does not exist.", true);
    1.73 +    }
    1.74 +  }
    1.75 +  
    1.76 +  public void clientConnect()
    1.77 +  {
    1.78 +    this.connectedClients++;
    1.79 +  }
    1.80 +  
    1.81 +  public void clientDisconnect()
    1.82 +  {
    1.83 +    this.connectedClients--;
    1.84 +  }
    1.85 +  
    1.86 +  public int connectedClients()
    1.87 +  {
    1.88 +    return this.connectedClients;
    1.89 +  }
    1.90 +  
    1.91 +  public int getNumberOfGroups()
    1.92 +  {
    1.93 +    try
    1.94 +    {
    1.95 +      return Database.getInstance().countGroups();
    1.96 +    }
    1.97 +    catch(SQLException ex)
    1.98 +    {
    1.99 +      ex.printStackTrace();
   1.100 +      return -1;
   1.101 +    }
   1.102 +  }
   1.103 +  
   1.104 +  public int getNumberOfNews()
   1.105 +  {
   1.106 +    try
   1.107 +    {
   1.108 +      return Database.getInstance().countArticles();
   1.109 +    }
   1.110 +    catch(SQLException ex)
   1.111 +    {
   1.112 +      ex.printStackTrace();
   1.113 +      return -1;
   1.114 +    }
   1.115 +  }
   1.116 +  
   1.117 +  public int getYesterdaysEvents(final byte eventType, final int hour,
   1.118 +    final Group group)
   1.119 +  {
   1.120 +    // Determine the timestamp values for yesterday and the given hour
   1.121 +    Calendar cal = Calendar.getInstance();
   1.122 +    int year  = cal.get(Calendar.YEAR);
   1.123 +    int month = cal.get(Calendar.MONTH);
   1.124 +    int dayom = cal.get(Calendar.DAY_OF_MONTH) - 1; // Yesterday
   1.125 +    
   1.126 +    cal.set(year, month, dayom, hour, 0, 0);
   1.127 +    long startTimestamp = cal.getTimeInMillis();
   1.128 +    
   1.129 +    cal.set(year, month, dayom, hour + 1, 0, 0);
   1.130 +    long endTimestamp = cal.getTimeInMillis();
   1.131 +    
   1.132 +    try
   1.133 +    {
   1.134 +      return Database.getInstance()
   1.135 +        .getEventsCount(eventType, startTimestamp, endTimestamp, group);
   1.136 +    }
   1.137 +    catch(SQLException ex)
   1.138 +    {
   1.139 +      ex.printStackTrace();
   1.140 +      return -1;
   1.141 +    }
   1.142 +  }
   1.143 +  
   1.144 +  public void mailPosted(String groupname)
   1.145 +  {
   1.146 +    addEvent(POSTED_NEWS, groupname);
   1.147 +  }
   1.148 +  
   1.149 +  public void mailGatewayed(String groupname)
   1.150 +  {
   1.151 +    addEvent(GATEWAYED_NEWS, groupname);
   1.152 +  }
   1.153 +  
   1.154 +  public void mailFeeded(String groupname)
   1.155 +  {
   1.156 +    addEvent(FEEDED_NEWS, groupname);
   1.157 +  }
   1.158 +  
   1.159 +  public void mlgwRunStart()
   1.160 +  {
   1.161 +    addEvent(MLGW_RUNSTART, "control");
   1.162 +  }
   1.163 +  
   1.164 +  public void mlgwRunEnd()
   1.165 +  {
   1.166 +    addEvent(MLGW_RUNEND, "control");
   1.167 +  }
   1.168 +  
   1.169 +  private double perHour(int key, long gid)
   1.170 +  {
   1.171 +    try
   1.172 +    {
   1.173 +      return Database.getInstance().getNumberOfEventsPerHour(key, gid);
   1.174 +    }
   1.175 +    catch(SQLException ex)
   1.176 +    {
   1.177 +      ex.printStackTrace();
   1.178 +      return -1;
   1.179 +    }
   1.180 +  }
   1.181 +  
   1.182 +  public double postedPerHour(long gid)
   1.183 +  {
   1.184 +    return perHour(POSTED_NEWS, gid);
   1.185 +  }
   1.186 +  
   1.187 +  public double gatewayedPerHour(long gid)
   1.188 +  {
   1.189 +    return perHour(GATEWAYED_NEWS, gid);
   1.190 +  }
   1.191 +  
   1.192 +  public double feededPerHour(long gid)
   1.193 +  {
   1.194 +    return perHour(FEEDED_NEWS, gid);
   1.195 +  }
   1.196 +  
   1.197 +}