X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=gosa-core%2Fplugins%2Fgeneric%2Fstatistics%2Fclass_statistics.inc;h=2d903c0762d9616eb11d7a41f96221d46df086c4;hb=9263477808030553bf59542b4cc06a07c1ccea8c;hp=9badf61ecd343d4e10d260c14944534133b425a2;hpb=a515568a6184232105b6d231fd9f36d5e0289f15;p=gosa.git

diff --git a/gosa-core/plugins/generic/statistics/class_statistics.inc b/gosa-core/plugins/generic/statistics/class_statistics.inc
index 9badf61ec..2d903c076 100644
--- a/gosa-core/plugins/generic/statistics/class_statistics.inc
+++ b/gosa-core/plugins/generic/statistics/class_statistics.inc
@@ -10,19 +10,31 @@ class statistics extends plugin
     var $rpcHandle = NULL;
     var $rpcConfigured = FALSE;
 
+    var $statisticData = array();
+
     var $graphID_1 = 0;
     var $graphID_2 = 0;
+    var $graphID_3 = 0;
+    var $graphID_4 = 0;
+    var $graphID_5 = 0;
+
+    var $legendR = 235;
+    var $legendG = 235;
+    var $legendB = 235;
+
+    var $font = "./themes/default/fonts/LiberationSans-Regular.ttf";
 
-    var $graph1Interval = 1;
     var $graph1DatePicker1 = 0;
     var $graph1DatePicker2 = 0;
 
+    var $unsbmittedFiles = array();
+
     function __construct($config)
     {
         plugin::plugin($config, NULL);
 
         // Init start and stop times for graph 1
-        $this->graph1DatePicker1 = date('d.m.Y', time() - 7 * 24 * 60 *60);
+        $this->graph1DatePicker1 = date('d.m.Y', time() - 14 * 24 * 60 *60);
         $this->graph1DatePicker2 = date('d.m.Y', time());
 
         // First try to retrieve values via RPC
@@ -35,21 +47,89 @@ class statistics extends plugin
                     "WyukwauWoid2",
                     TRUE);
         }
+
+        // Get list of unsubmitted files.
+        $this->unsbmittedFiles = $this->getUnsubmittedStatistics();
+
+        // Collect category translations
+        $this->catTranslations = array();
+        foreach($this->config->configRegistry->getListOfPlugins() as $plugin => $data){
+            if(isset($data['plCategory'])){
+                foreach($data['plCategory'] as $id => $name){
+                    if(!is_numeric($id)){
+                        $this->catTranslations[$id] = $name['description'];
+                    }
+                }
+            }
+        }
+    }
+
+    /*! \brief      Returns a list local stored statistic files
+        @param      Array   A list of filenames and dates.
+     */ 
+    function getLocalStatisticsFiles()
+    {
+        $res = stats::getLocalStatFiles();
+        $tmp = array();
+        if(count($res)){
+            foreach($res as $file){
+                $date = strtotime($file);
+                if($date){
+                    $tmp[$file] = $date;
+                }
+            }
+        }
+        return($tmp);
+    }
+
+   
+    /*! \brief      Returns a list of not transmitted stat files (except files for the current day)
+     *  @return     Array   A list of unsubmitted statistic files.
+     */ 
+    function getUnsubmittedStatistics()
+    {
+        $available = $this->getLocalStatisticsFiles();
+        $alreadyTransmitted = $this->getStatisticsDatesFromServer();
+
+        $unsubmitted = array();
+        foreach($available as $key => $day){
+            if(!isset($alreadyTransmitted[$key])) $unsubmitted [$key] = $day;
+        }
+
+        // Exclude statistic collection from today, they are still active and cannot be submitted.
+        $curDate =  date('Y-m-d');
+        if(isset($unsubmitted)) unset($unsubmitted[$curDate]);
+
+        return($unsubmitted);  
+    }
+
+
+    /*! \brief      Request a list of dates for which the server can return statistics.
+        @param      Array   A list of dates    $ret=[iso-str] = timestamp
+     */ 
+    function getStatisticsDatesFromServer()
+    {
+        $res = $this->rpcHandle->getInstanceStatDates();
+        $dates = array();
+        if(!$this->rpcHandle->success()){
+            msg_dialog::display(_("Error"),msgPool::rpcError($this->rpcHandle->get_error()),ERROR_DIALOG);
+        }else{
+            foreach($res as $date){
+                $dates[$date] = strtotime($date);
+            }
+        }
+        return($dates);
     }
 
+
     function execute()
     {
         if(isset($_POST['graph1DatePicker1'])) $this->graph1DatePicker1 = get_post('graph1DatePicker1');
         if(isset($_POST['graph1DatePicker2'])) $this->graph1DatePicker2 = get_post('graph1DatePicker2');
-        if(isset($_POST['graph1Interval'])) $this->graph1Interval = get_post('graph1Interval');
-
-        if(!$this->graph1Interval) $this->graph1Interval = 1;
 
         $smarty = get_smarty();
         $smarty->assign('graph1DatePicker1', $this->graph1DatePicker1);
         $smarty->assign('graph1DatePicker2', $this->graph1DatePicker2);
-        $smarty->assign('graph1Interval', $this->graph1Interval);
-        $smarty->assign('intervalValues', array('1','2','5','7','30'));
 
         // Do not render anything if we are not prepared to send and receive data via rpc.
         $smarty->assign("rpcConfigured", $this->rpcConfigured);
@@ -61,148 +141,415 @@ class statistics extends plugin
 
         // Send stats 
         if(isset($_POST['transmitStatistics'])){
-            $tmp = stats::dumpTables();
-            $dump = array();
-            foreach($tmp as $entry){
-                $dump[] = array_values($entry);
+            $this->unsbmittedFiles = $this->getUnsubmittedStatistics();
+            foreach($this->unsbmittedFiles as $filename => $date){
+                $tmp = stats::dumpTables($filename);
+                $dump = array();
+                foreach($tmp as $entry){
+                    $dump[] = array_values($entry);
+                }
+                $res = $this->rpcHandle->updateInstanceStatus($dump);
+                if(!$this->rpcHandle->success()){
+                    msg_dialog::display(_("Error"),msgPool::rpcError($this->rpcHandle->get_error()),ERROR_DIALOG);
+                }else{
+                    stats::removeStatsFile($filename);
+                    echo "Inserted ".$res." entries for date ".date('d.m.Y', $date)."<br>";
+                }
             }
-            $res = $this->rpcHandle->updateInstanceStatus($dump);
+            $this->unsbmittedFiles = $this->getUnsubmittedStatistics();
+        }
+
+        // Transmit daily statistics to GOsa-Server
+        if(isset($_POST['receiveStatistics']) && $this->rpcConfigured){
+            $start = strtotime($this->graph1DatePicker1);
+            $stop  = strtotime($this->graph1DatePicker2);
+            $res = $this->rpcHandle->getInstanceStats($start,$stop);
             if(!$this->rpcHandle->success()){
                 msg_dialog::display(_("Error"),msgPool::rpcError($this->rpcHandle->get_error()),ERROR_DIALOG);
-            }else{
-                echo $res." Entries inserted";
+            }elseif($res){
+                $this->statisticData = $this->prepareGraphData($res); 
+                $this->reloadGraphs();
             }
         }
 
-        // Transmit daily statistics to GOsa-Server
-        if(isset($_POST['receiveStatistics'])){
-
-            // First try to retrieve values via RPC
-            if ($this->config->get_cfg_value("core","gosaRpcServer") != ""){
+        $smarty->assign('graphID_1', $this->graphID_1);
+        $smarty->assign('graphID_2', $this->graphID_2);
+        $smarty->assign('graphID_3', $this->graphID_3);
+        $smarty->assign('graphID_4', $this->graphID_4);
+        $smarty->assign('graphID_5', $this->graphID_5);
+        $smarty->assign('unsbmittedFiles', count($this->unsbmittedFiles));
+        $smarty->assign('unsbmittedFilesMsg', 
+                sprintf(
+                    _("You have currently %s unsubmitted statistic collection, do you want to transmit them now?"),
+                    count($this->unsbmittedFiles)));
+        return($smarty->fetch(get_template_path('statistics.tpl', TRUE)));
+    }
 
-                $interval = $this->graph1Interval;
-                $start = strtotime($this->graph1DatePicker1);
-                $stop  = strtotime($this->graph1DatePicker2);
 
-                // Request statistics now
-                $res = $this->rpcHandle->getInstanceStats($start,$stop,$interval);
-                if(!$this->rpcHandle->success()){
-                    msg_dialog::display(_("Error"),msgPool::rpcError($this->rpcHandle->get_error()),ERROR_DIALOG);
-                }
+    function prepareGraphData($res)
+    { 
+        $gData = array();
 
-                if($res){
-
-                    // Include pChart 
-                    new pChartInclude();
-
-                    // --------
-                    // Generate PIE chart of most used categories
-                    // --------
-
-                    // Get most used categories, but only eight at once.
-                    arsort($res['actionsPerCategory']);
-                    $mostUsedCategories = array_slice($res['actionsPerCategory'],0,8);
-
-                    // Dataset definition   
-                    $DataSet = new pData;  
-                    $this->graphID_1 = preg_replace("/[^0-9]/","",microtime(TRUE));
-                    $DataSet->AddPoint(array_values($mostUsedCategories),"Serie1");  
-                    $DataSet->AddPoint(array_keys($mostUsedCategories),"Serie2");  
-                    $DataSet->AddAllSeries();  
-                    $DataSet->SetAbsciseLabelSerie("Serie2");  
-
-                    // Initialise the graph  
-                    $Test = new pChart(400,200);  
-                    $Test->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
-                    $Test->drawPieGraph($DataSet->GetData(),$DataSet->GetDataDescription(),150,90,110,PIE_PERCENTAGE,TRUE,50,20,5);  
-                    $Test->drawPieLegend(310,15,$DataSet->GetData(),$DataSet->GetDataDescription(),200,255,200);  
-
-                    $file = '/tmp/graph_'.$this->graphID_1;
-                    $Test->Render($file);
-                    session::set('statistics::graphFile'.$this->graphID_1,$file);
-
-
-                    // --------
-                    // Generate combined line and car chart of plugin usage, ldap execution time and errors 
-                    // --------
-
-                    // Generate new and unique graph id
-                    $this->graphID_2 = preg_replace("/[^0-9]/","",microtime(TRUE));
-
-                    // Build up DataSet. 
-                    $DataSet2 = new pData;  
-                    $intervalEntries = array();
-                    $max = 500;
-                    foreach($res['actionsPerInterval'] as $category => $dates){
-                        if(!isset($mostUsedCategories[$category])) continue;
-                        ksort($res['actionsPerInterval'][$category]);
-                        $DataSet2->AddPoint($res['actionsPerInterval'][$category], $category);
-                        $DataSet2->SetSerieName(_($category), $category);
-                    }
-                    $DataSet2->AddAllSeries();  
-
-                    $Xam = 5;
-                    $cnt =0;
-                    foreach($res['actionsPerIntervalDates'] as $key => $date){
-                        $date = strtotime($date);
-                        if((count($dates) <= $Xam) || 
-                            ($cnt % (floor(count($dates) / $Xam )) == 0)){
-                            $tmp[$date] = date('d.m.Y',$date);
-                        }else{
-                            $tmp[$date] = ' ';
-                        }
-                        $cnt ++;    
-                    }
-               
- 
-                    $DataSet2->AddPoint($tmp, 'date');
-                    $DataSet2->SetAbsciseLabelSerie('date');  
-                    $DataSet2->RemoveSerie('date');  
-
-                    $Test2 = new pChart(700,230);  
-                    $Test2->setFixedScale(0,$max);  
-                    $Test2->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
-                    $Test2->setGraphArea(50,30,585,200);  
-                    $Test2->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
-                    $Test2->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
-                    $Test2->drawGraphArea(255,255,255,TRUE);  
-                    $Test2->drawScale($DataSet2->GetData(),$DataSet2->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2);     
-                    $Test2->drawGrid(4,TRUE,230,230,230,50);  
-
-                    // Draw the 0 line  
-                    $Test2->drawTreshold(0,143,55,72,TRUE,TRUE);  
-
-                    // Draw the cubic curve graph  
-                    #$Test2->drawBarGraph($DataSet2->GetData(),$DataSet2->GetDataDescription(),TRUE);  
-                    #$Test2->drawLineGraph($DataSet2->GetData(),$DataSet2->GetDataDescription(),TRUE); 
-                    $Test2->drawFilledLineGraph($DataSet2->GetData(),$DataSet2->GetDataDescription(),50,TRUE);  
-
-                    // Finish the graph  
-                    $DataSet2->RemoveSerie('date');  
-                    $Test2->drawLegend(600,30,$DataSet2->GetDataDescription(),255,255,255);  
-                    $Test2->drawTitle(50,22,"Plugin usage over time",50,50,50,585);  
-
-                    $file = '/tmp/graph_'.$this->graphID_2;
-                    $Test2->Render($file);
-                    session::set('statistics::graphFile'.$this->graphID_2,$file);
-                }
+        /* Build up array which represents the amount of errors per
+         *  interval.
+         */
+        foreach($res['errorsPerInterval'] as $dateStr => $data){
+            $date = strtotime($dateStr);
+            $gData['errorsPerInterval'][$date] = $data;
+        }
+        ksort($gData['errorsPerInterval']);
+
+
+        /* Build up timeline
+         */
+        $Xam = 5; 
+        $cnt = 0;
+        $numCnt = $res['errorsPerInterval'];
+        foreach($gData['errorsPerInterval'] as $date => $data){
+            if((count($numCnt) <= $Xam) || 
+                    ($cnt % (floor(count($numCnt) / $Xam )) == 0)){
+                $gData['dates'][$date] = date('d.m.Y', $date);
+            }else{
+                $gData['dates'][$date] = ' ';
+            }
+            $cnt ++;
+        }
+        ksort($gData['dates']);
+
+        
+        /* Build up 'actions per category' array, this will later
+         *   be represented using a pie chart.
+         */
+        $gData['actionsPerCategory'] = $res['actionsPerCategory'];
+        arsort($gData['actionsPerCategory']);
+
+
+        /* Build up system-info array per interval.
+         */
+        foreach($res['usagePerInterval'] as $dateStr => $data){
+            $date = strtotime($dateStr);
+            foreach($data as $type => $count){
+                $gData['usagePerInterval'][$type][$date] = $count;
             }
         }
+        foreach($gData['usagePerInterval'] as $key => $data)
+            ksort($gData['usagePerInterval'][$key]);
 
-        $smarty->assign('graphID_1', $this->graphID_1);
-        $smarty->assign('graphID_2', $this->graphID_2);
-        return($smarty->fetch(get_template_path('statistics.tpl', TRUE)));
+
+        /* Prepare actions-per-interval array.
+         */    
+        foreach($res['actionsPerInterval'] as $category => $data){
+            if(empty($category)) continue;
+            foreach($data as $dateStr => $count){
+                $date = strtotime($dateStr);
+                $gData['actionsPerInterval'][$category][$date]=$count;
+            }
+            ksort($gData['actionsPerInterval'][$category]);
+        }
+        return($gData);
     }
 
+
     function check()
     {
         $messages = plugin::check();
         return($messages);
     }
 
+
     function save_object()
     {
         plugin::save_object();
     }
+
+
+    /*! \brief      This method tries to translate category names.
+     *  @param      The category name to translate
+     *  @return     String  The translated category names.
+     */
+    function getCategoryTranslation($name)
+    {
+        $ret ="";
+
+        // Extract category names from the given string.
+        $list = preg_split("/, /", $name);
+
+        // We do not have a category for systems directly, so we've to map all system types to 'System'.
+        // If we do not map to _(Systems) the graph legend will be half screen width.
+        if(count(array_intersect(array('server','terminal','workstation', 'opsi', 'component'), $list))){
+            return(_("Systems"));
+        }
+
+        // Walk through category names and try to find a translation.
+        foreach($list as $cat){
+            $cat = trim($cat);
+            if(isset($this->catTranslations[$cat])){
+                $cat = _($this->catTranslations[$cat]);
+            }elseif(!empty($cat)){
+                $cat = _($cat);
+            }
+            $ret .= $cat.", ";
+        }
+        return(rtrim($ret, ', '));
+    }
+
+
+    function reloadGraphs()
+    {
+        new pChartInclude();
+        $gData = $this->statisticData;
+        if(count($gData['actionsPerCategory'])){
+            $this->generateCategoryPieGraph($gData['actionsPerCategory']);
+        }
+        $this->generateActionsGraph($gData);
+    }
+
+
+    function generateActionsGraph($gData)
+    {
+        $lineMax = 100;
+        $errorMax = (max($gData['errorsPerInterval']) < 100)? 100:max($gData['errorsPerInterval']);
+        $dataSet = new pData;  
+        foreach($gData['actionsPerInterval'] as $category => $entriesPerDate){
+            if(empty($category)) continue;
+
+            // Add results to our data set.
+            $dataSet->AddPoint($entriesPerDate, $category);
+            $dataSet->SetSerieName($this->getCategoryTranslation($category), $category);
+            $dataSet->AddSerie($category);
+
+            // Detect maximum value, to adjust the Y-Axis
+            $tmpMax = max($entriesPerDate);
+            if($tmpMax > $lineMax) $lineMax = $tmpMax;
+        }
+
+        // Add timeline
+        $dataSet->AddPoint($gData['dates'], 'date');
+        $dataSet->SetAbsciseLabelSerie('date');  
+
+        $chart = new pChart(800,230);  
+        $chart->setFixedScale(0.000,$lineMax);
+        $chart->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
+        $chart->setGraphArea(50,30,585,200);  
+        $chart->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
+        $chart->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
+        $chart->drawGraphArea(255,255,255,TRUE);  
+        $chart->drawGrid(4,TRUE,200,200,200,50);  
+        $chart->drawTreshold(0,143,55,72,TRUE,TRUE);  
+        $chart->drawTitle(50,22,"Plugin usage over time",50,50,50,585);  
+        $chart->drawScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2, TRUE);     
+        $chart->drawFilledLineGraph($dataSet->GetData(),$dataSet->GetDataDescription(),50,TRUE);
+        $chart->setColorPalette(count($gData['actionsPerInterval']),255,0,0);   
+
+        // Draw legend
+        $dataSet->AddPoint($gData['errorsPerInterval'], 'Errors');
+        $dataSet->SetSerieName(_('Error'), 'Errors');
+        $dataSet->AddSerie('Errors');
+        $chart->drawLegend(650,30,$dataSet->GetDataDescription(),255,255,255);  
+
+        // Remove all graph series and add the error-series, then draw the new graph.
+        foreach($gData['actionsPerInterval'] as $category => $data){
+            $dataSet->RemoveSerie($category);
+        }
+        $chart->setFixedScale(0,$errorMax);
+        $chart->drawRightScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,120,150,150,TRUE,0,2, TRUE);
+        $chart->drawBarGraph($dataSet->GetData(),$dataSet->GetDataDescription());
+
+        // Generate new and unique graph id
+        $this->graphID_2 = preg_replace("/[^0-9]/","",microtime(TRUE));
+        $file = '/tmp/graph_'.$this->graphID_2;
+        $chart->Render($file);
+        session::set('statistics::graphFile'.$this->graphID_2,$file);
+
+        return;
+    }
+    
+#       // Prepare Data 
+#       $graphData = array();
+#       foreach($gData['usagePerInterval'] as $dateStr => $data){
+#           $date = strtotime($dateStr);
+#           foreach($data as $name => $val){
+#               $graphData[$name][$date] = $val;
+#           }
+#       }
+#
+#       // Sort Data 
+#       foreach($graphData as $key => $data)
+#           ksort($graphData[$key]);
+#
+#       // Generate new and unique graph id
+#       $this->graphID_3 = preg_replace("/[^0-9]/","",microtime(TRUE));
+#
+#       // Prepare transmitted data, sort it by date and collect 
+#       //  transmitted timestamps to be able to print the x-Axis labels.
+#       $dataSet = new pData;  
+#
+#       $max = max($graphData['max_mem']);
+#
+#       $dataSet->AddPoint(array_values($graphData['max_mem']), 'max_mem');
+#       $dataSet->AddPoint(array_values($graphData['avg_mem']), 'avg_mem');
+#       $dataSet->AddPoint(array_values($graphData['min_mem']), 'min_mem');
+#
+#       $dataSet->SetSerieName('Min Memory', 'min_mem');
+#       $dataSet->SetSerieName('Max Memory', 'max_mem');
+#       $dataSet->SetSerieName('Average Memory', 'avg_mem');
+#
+#       $dataSet->AddAllSeries();  
+#       $dataSet->AddPoint($dateSeries, 'date');
+#       $dataSet->SetAbsciseLabelSerie('date');
+#
+#       $chart = new pChart(800,230);  
+#       $chart->setFixedScale(0.0001,($max*1.1));  
+#       $chart->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
+#       $chart->setGraphArea(50,30,585,200);  
+#       $chart->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
+#       $chart->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
+#       $chart->drawGraphArea(255,255,255,TRUE);  
+#       $chart->drawGrid(4,TRUE,200,200,200,50);  
+#       $chart->drawTreshold(0,143,55,72,TRUE,TRUE);  
+#       $chart->drawTitle(50,22,"Memory usage",50,50,50,585);  
+#
+#       $chart->drawScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2, FALSE);
+#       $chart->drawFilledCubicCurve($dataSet->GetData(),$dataSet->GetDataDescription(),.1,50); 
+#
+#       $file = '/tmp/graph_'.$this->graphID_3;
+#       $chart->Render($file);
+#       session::set('statistics::graphFile'.$this->graphID_3,$file);
+#
+#
+#
+#
+#
+#
+#
+#       // Generate new and unique graph id
+#       $this->graphID_4 = preg_replace("/[^0-9]/","",microtime(TRUE));
+#
+#       // Prepare transmitted data, sort it by date and collect 
+#       //  transmitted timestamps to be able to print the x-Axis labels.
+#       $dataSet = new pData;  
+#
+#       $max = max($graphData['max_dur']);
+#
+#       $dataSet->AddPoint(array_values($graphData['max_dur']), 'max_dur');
+#       $dataSet->AddPoint(array_values($graphData['avg_dur']), 'avg_dur');
+#       $dataSet->AddPoint(array_values($graphData['min_dur']), 'min_dur');
+#
+#       $dataSet->SetSerieName('Min dur', 'min_dur');
+#       $dataSet->SetSerieName('Max dur', 'max_dur');
+#       $dataSet->SetSerieName('Average dur', 'avg_dur');
+#
+#       $dataSet->AddAllSeries();  
+#       $dataSet->AddPoint($dateSeries, 'date');
+#       $dataSet->SetAbsciseLabelSerie('date');
+#
+#       $chart = new pChart(800,230);  
+#       $chart->setFixedScale(0.0001,($max*1.1));  
+#       $chart->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
+#       $chart->setGraphArea(50,30,585,200);  
+#       $chart->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
+#       $chart->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
+#       $chart->drawGraphArea(255,255,255,TRUE);  
+#       $chart->drawGrid(4,TRUE,200,200,200,50);  
+#       $chart->drawTreshold(0,143,55,72,TRUE,TRUE);  
+#       $chart->drawTitle(50,22,"Render time",50,50,50,585);  
+#
+#       $chart->drawScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2, FALSE);
+#       $chart->drawFilledCubicCurve($dataSet->GetData(),$dataSet->GetDataDescription(),.1,50); 
+#
+#       $file= '/tmp/graph_'.$this->graphID_4;
+#       $chart->Render($file);
+#       session::set('statistics::graphFile'.$this->graphID_4,$file);
+#
+#
+#
+#
+#
+#
+#
+#
+#       // Generate new and unique graph id
+#       $this->graphID_5 = preg_replace("/[^0-9]/","",microtime(TRUE));
+#
+#       // Prepare transmitted data, sort it by date and collect 
+#       //  transmitted timestamps to be able to print the x-Axis labels.
+#       $dataSet = new pData;  
+#
+#       $max = max($graphData['max_load']);
+#
+#       $dataSet->AddPoint(array_values($graphData['max_load']), 'max_load');
+#       $dataSet->AddPoint(array_values($graphData['avg_load']), 'avg_load');
+#       $dataSet->AddPoint(array_values($graphData['min_load']), 'min_load');
+#
+#       $dataSet->SetSerieName('Min Load', 'min_load');
+#       $dataSet->SetSerieName('Max Load', 'max_load');
+#       $dataSet->SetSerieName('Average Load', 'avg_load');
+#
+#       $dataSet->AddAllSeries();  
+#       $dataSet->AddPoint($dateSeries, 'date');
+#       $dataSet->SetAbsciseLabelSerie('date');
+#
+#       $chart = new pChart(800,230);  
+#       $chart->setFixedScale(0.0001,($max*1.1));  
+#       $chart->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);  
+#       $chart->setGraphArea(50,30,585,200);  
+#       $chart->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
+#       $chart->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
+#       $chart->drawGraphArea(255,255,255,TRUE);  
+#       $chart->drawGrid(4,TRUE,200,200,200,50);  
+#       $chart->drawTreshold(0,143,55,72,TRUE,TRUE);  
+#       $chart->drawTitle(50,22,"CPU load",50,50,50,585);  
+#
+#       $chart->drawScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2, FALSE);
+#       $chart->drawFilledCubicCurve($dataSet->GetData(),$dataSet->GetDataDescription(),.1,50); 
+#
+#       $file = '/tmp/graph_'.$this->graphID_5;
+#       $chart->Render($file);
+#       session::set('statistics::graphFile'.$this->graphID_5,$file);
+#
+
+
+    function generateCategoryPieGraph($data)
+    {
+        // Sort data by usage count and slice array to get 
+        //  the eight most used categories
+        arsort($data);
+        $mostUsedCategories = array_slice($data,0,7);
+
+        // Get the rest of categories and combine them 'others'
+        $theRest = array_slice($data,7);
+        $mostUsedCategories['remaining'] = array_sum($theRest);
+
+        // Try to find a translation for the given category names
+        $values = array_values($mostUsedCategories);
+        $keys = array_keys($mostUsedCategories);
+        foreach($keys as $id => $cat){
+            $keys[$id] = $this->getCategoryTranslation($cat);
+        }
+
+        // Dataset definition   
+        $dataSet = new pData;  
+        $dataSet->AddPoint($values,"Serie1");  
+        $dataSet->AddAllSeries();  
+        $dataSet->AddPoint($keys,"Serie2");  
+        $dataSet->SetAbsciseLabelSerie("Serie2");  
+
+        // Set graph area
+        $x = 400;
+        $y = 200;
+
+        // Initialise the graph  
+        $chart = new pChart($x,$y);  
+        $chart->setFontProperties($this->font,10);  
+        $chart->drawPieGraph($dataSet->GetData(),$dataSet->GetDataDescription(),($x/3),($y/2)-10,($y/2),PIE_PERCENTAGE,TRUE,50,20,3);  
+        $chart->drawPieLegend(($x/3*2),15,$dataSet->GetData(),$dataSet->GetDataDescription(),
+                $this->legendR,$this->legendG,$this->legendB);
+
+        // Store graph data
+        $this->graphID_1 = preg_replace("/[^0-9]/","",microtime(TRUE));
+        $file = '/tmp/graph_'.$this->graphID_1;
+        $chart->Render($file);
+        session::set('statistics::graphFile'.$this->graphID_1,$file);
+    }
 }
 ?>