public function knownWorkflows()
 {
     //
     // Default values.
     $out = array();
     //
     // Global dependencies.
     global $WKFLDefaults;
     //
     // Retrieveing paths.
     $paths = Paths::Instance()->customPaths($WKFLDefaults[WKFL_DEFAULTS_PATHS][WKFL_DEFAULTS_PATH_WORKFLOWS], '*', Paths::ExtensionJSON, true);
     //
     // Generationg names list.
     foreach ($paths as $path) {
         $info = pathinfo($path);
         $out[] = $info['filename'];
     }
     sort($out);
     return $out;
 }
 /**
  * This method loads current workflow's configuration.
  */
 protected function load()
 {
     //
     // Avoiding multipe loads of configurations.
     if ($this->_config === false) {
         //
         // Checking log configuration
         $this->checkLog();
         //
         // Logging operation start.
         $this->_log->log(LGGR_LOG_LEVEL_INFO, "Loading workflow '{$this->name()}'.");
         //
         // Reseting current stauts value.
         $this->_status = false;
         //
         // Global dependencies.
         global $WKFLDefaults;
         global $Defaults;
         //
         // Guessing names.
         $fileName = Names::SnakeFilename($this->name());
         $this->_path = Paths::Instance()->customPaths($WKFLDefaults[WKFL_DEFAULTS_PATHS][WKFL_DEFAULTS_PATH_WORKFLOWS], $fileName, Paths::ExtensionJSON);
         //
         // Checking path existence.
         if ($this->_path && is_readable($this->_path)) {
             //
             // Loading configuration contents.
             $jsonString = file_get_contents($this->_path);
             //
             // Validating JSON strucutre.
             if (!$Defaults[GC_DEFAULTS_INSTALLED] && !self::GetValidator()->validate($jsonString, $info)) {
                 $this->_log->log(LGGR_LOG_LEVEL_ERROR, "Workflow '{$this->name()}' specification is not well formed. {$info[JV_FIELD_ERROR][JV_FIELD_MESSAGE]}");
             } else {
                 //
                 // Loading configuration.
                 $this->_config = json_decode($jsonString);
                 if ($this->_config) {
                     $this->_status = true;
                 }
             }
         } elseif (!$this->_path) {
             $this->_log->log(LGGR_LOG_LEVEL_ERROR, "Unknown workflow '{$this->name()}'.");
         } else {
             $this->_log->log(LGGR_LOG_LEVEL_ERROR, "Unable to read workflow path '{$this->_path}'.");
         }
     }
 }