+ public function resolveCommandByRequest (Requestable $requestInstance) {
+ // Init variables
+ $commandName = '';
+ $commandInstance = NULL;
+
+ // This goes fine so let's resolve the command
+ $commandName = $requestInstance->getRequestElement('command');
+
+ // Is the command empty? Then fall back to default command
+ if (empty($commandName)) {
+ $commandName = $this->getConfigInstance()->getConfigEntry('default_' . self::getResponseTypeFromSystem() . '_command');
+ } // END - if
+
+ // Check if command is valid
+ if ($this->isCommandValid($commandName) === FALSE) {
+ // This command is invalid!
+ throw new InvalidCommandException(array($this, $commandName), self::EXCEPTION_INVALID_COMMAND);
+ } // END - if
+
+ // Get the command
+ $commandInstance = $this->loadCommand($commandName);
+
+ // And validate it
+ if ((!is_object($commandInstance)) || (!$commandInstance instanceof Commandable)) {
+ // This command has an invalid instance!
+ throw new InvalidCommandInstanceException(array($this, $commandName), self::EXCEPTION_INVALID_COMMAND);
+ } // END - if
+
+ // Set last command
+ $this->setResolvedInstance($commandInstance);
+
+ // Return the resolved command instance
+ return $commandInstance;