gosa-core/plugins/generic/statistics/chartClasses/class_memoryUsageChart.inc

   1 <?php
   2
   3 class memoryUsageChart extends statChart
   4 {
   5     var $title = 'Memory usage';
   6     var $enableCaching = TRUE;
   7
   8     function __construct(&$config)
   9     {
  10         parent::__construct($config);
  11         $this->graphName = get_class();
  12
  13         // Generate graph which displays the memory usage over time
  14         $this->series = array(
  15                 'max_mem' => _('Max'),
  16                 'avg_mem' => _('Avergae'),
  17                 'min_mem' => _('Min'));
  18         $this->dataName = "usagePerInterval";
  19     }
  20
  21
  22     /*! \brief  Generates the line-graph which displays the plugin usage over time.
  23      */
  24     function render()
  25     {
  26         // Add series data to dataSet
  27         $dataSet = new pData;
  28         $max = 0;
  29         foreach($this->series as $seriesName => $seriesDesc){
  30             if(isset($this->graphData[$this->dataName][$seriesName])){
  31                 $dataSet->AddPoint($this->graphData[$this->dataName][$seriesName],$seriesName);
  32                 $dataSet->SetSerieName($seriesDesc,$seriesName);
  33                 if($max < max($this->graphData[$this->dataName][$seriesName])) $max = max($this->graphData[$this->dataName][$seriesName]);
  34             }
  35         }
  36         $dataSet->AddAllSeries();
  37         $dataSet->AddPoint($this->graphData['dates'], 'date');
  38         $dataSet->SetAbsciseLabelSerie('date');
  39
  40         // Read graph from cache?
  41         $pCache = new pCache('/var/spool/gosa/');
  42         if($this->enableCaching && $pCache->IsInCache(get_class(),$dataSet->GetData())){
  43             $filename =  $pCache->GetHash(get_class(),$dataSet->GetData());
  44             $filename = '/var/spool/gosa/'.$filename;
  45             if(file_exists($filename) && is_readable($filename)){
  46                 $this->graphID = preg_replace("/[^0-9]/","",microtime(TRUE)).rand(0,99999);
  47                 session::set('statistics::graphFile'.$this->graphID,$filename);
  48                 return;
  49             }
  50         }
  51
  52         $chart = new pChart(800,230);
  53         $chart->setFixedScale(0.0001,($max*1.1));
  54         $chart->setFontProperties("./themes/default/fonts/LiberationSans-Regular.ttf",10);
  55         $chart->setGraphArea(50,30,585,200);
  56         $chart->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);
  57         $chart->drawRoundedRectangle(5,5,695,225,5,230,230,230);
  58         $chart->drawGraphArea(255,255,255,TRUE);
  59         $chart->drawGrid(4,TRUE,200,200,200,50);
  60         $chart->drawTreshold(0,143,55,72,TRUE,TRUE);
  61         $chart->drawTitle(50,22,$this->title,50,50,50,585);
  62         $chart->drawLegend(650,30,$dataSet->GetDataDescription(),255,255,255);
  63
  64         $chart->drawScale($dataSet->GetData(),$dataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2, FALSE);
  65         $chart->drawFilledCubicCurve($dataSet->GetData(),$dataSet->GetDataDescription(),.1,50);
  66
  67         // Generate new and unique graph id
  68         $this->graphID = preg_replace("/[^0-9]/","",microtime(TRUE));
  69         $file = '/tmp/graph_'.$this->graphID;
  70         $chart->Render($file);
  71         session::set('statistics::graphFile'.$this->graphID,$file);
  72         $pCache->WriteToCache(get_class(),$dataSet->GetData(),$chart);
  73
  74         return;
  75     }
  76
  77 }
  78 ?>