PHPMD\RuleSetFactory::setMinimumPriority PHP Method

    public function setMinimumPriority($minimumPriority)
    {
        $this->minimumPriority = $minimumPriority;
    }

 protected function execute(InputInterface $input, OutputInterface $output)
 {
     $this->outputHeading($output, 'PHP Mess Detector on %s');
     $files = $this->plugin->getFiles(Finder::create()->name('*.php'));
     if (count($files) === 0) {
         return $this->outputSkip($output);
     }
     $validate = new Validate();
     $rules = realpath($validate->filePath($input->getOption('rules')));
     $renderer = new MessDetectorRenderer($output, $this->moodle->directory);
     $renderer->setWriter(new StreamWriter(STDOUT));
     $ruleSetFactory = new RuleSetFactory();
     $ruleSetFactory->setMinimumPriority(5);
     $messDetector = new PHPMD();
     $messDetector->processFiles(implode(',', $files), $rules, [$renderer], $ruleSetFactory);
 }