/**
  * Start a stopwatch
  *
  * @return integer Execution id
  */
 public function markExecution()
 {
     TimeTracker::start('SchedulerTaskMeasure');
     $this->initialize();
     return parent::markExecution();
 }
 /**
  * Executes the wget command
  *
  * @return string
  */
 public function execute()
 {
     $command = $this->buildCommand();
     TimeTracker::start($command);
     $this->logger->debug('Executing WGet command ' . $command, __CLASS__);
     exec($command, $outputLines, $returnVar);
     $this->logger->debug('Called WGet command returned status ' . $returnVar, __CLASS__, array('time' => TimeTracker::stop($command)));
     return implode('\\n', $outputLines);
 }