/**
  * Generate the code files according to the transferred JSON configuration.
  *
  * @throws \Exception
  * @return array (status => message)
  */
 protected function rpcActionSave()
 {
     try {
         $extensionBuildConfiguration = $this->configurationManager->getConfigurationFromModeler();
         GeneralUtility::devLog('Modeler Configuration', 'extension_builder', 0, $extensionBuildConfiguration);
         $validationConfigurationResult = $this->extensionValidator->validateConfigurationFormat($extensionBuildConfiguration);
         if (!empty($validationConfigurationResult['warnings'])) {
             $confirmationRequired = $this->handleValidationWarnings($validationConfigurationResult['warnings']);
             if (!empty($confirmationRequired)) {
                 return $confirmationRequired;
             }
         }
         if (!empty($validationConfigurationResult['errors'])) {
             $errorMessage = '';
             /** @var $exception \Exception */
             foreach ($validationConfigurationResult['errors'] as $exception) {
                 $errorMessage .= '<br />' . $exception->getMessage();
             }
             throw new \Exception($errorMessage);
         }
         $extension = $this->extensionSchemaBuilder->build($extensionBuildConfiguration);
     } catch (\Exception $e) {
         throw $e;
     }
     // Validate the extension
     $validationResult = $this->extensionValidator->isValid($extension);
     if (!empty($validationResult['errors'])) {
         $errorMessage = '';
         /** @var $exception \Exception */
         foreach ($validationResult['errors'] as $exception) {
             $errorMessage .= '<br />' . $exception->getMessage();
         }
         throw new \Exception($errorMessage);
     }
     if (!empty($validationResult['warnings'])) {
         $confirmationRequired = $this->handleValidationWarnings($validationResult['warnings']);
         if (!empty($confirmationRequired)) {
             return $confirmationRequired;
         }
     }
     $extensionDirectory = $extension->getExtensionDir();
     if (!is_dir($extensionDirectory)) {
         GeneralUtility::mkdir($extensionDirectory);
     } else {
         if ($this->settings['extConf']['backupExtension'] == 1) {
             try {
                 RoundTrip::backupExtension($extension, $this->settings['extConf']['backupDir']);
             } catch (\Exception $e) {
                 throw $e;
             }
         }
         $extensionSettings = $this->configurationManager->getExtensionSettings($extension->getExtensionKey());
         if ($this->settings['extConf']['enableRoundtrip'] == 1) {
             if (empty($extensionSettings)) {
                 // no config file in an existing extension!
                 // this would result in a	 total overwrite so we create one and give a warning
                 $this->configurationManager->createInitialSettingsFile($extension, $this->settings['codeTemplateRootPath']);
                 return array('warning' => "<span class='error'>Roundtrip is enabled but no configuration file was found.</span><br />This might happen if you use the extension builder the first time for this extension. <br />A settings file was generated in <br /><b>typo3conf/ext/" . $extension->getExtensionKey() . '/Configuration/ExtensionBuilder/settings.yaml.</b><br />Configure the overwrite settings, then save again.');
             }
             try {
                 RoundTrip::prepareExtensionForRoundtrip($extension);
             } catch (\Exception $e) {
                 throw $e;
             }
         } else {
             if (!is_array($extensionSettings['ignoreWarnings']) || !in_array(\EBT\ExtensionBuilder\Domain\Validator\ExtensionValidator::EXTENSION_DIR_EXISTS, $extensionSettings['ignoreWarnings'])) {
                 $confirmationRequired = $this->handleValidationWarnings(array(new \EBT\ExtensionBuilder\Domain\Exception\ExtensionException("This action will overwrite previously saved content!\n(Enable the roundtrip feature to avoid this warning).", \EBT\ExtensionBuilder\Domain\Validator\ExtensionValidator::EXTENSION_DIR_EXISTS)));
                 if (!empty($confirmationRequired)) {
                     return $confirmationRequired;
                 }
             }
         }
     }
     try {
         $this->fileGenerator->build($extension);
         $this->extensionInstallationStatus->setExtension($extension);
         $message = '<p>The Extension was saved</p>' . $this->extensionInstallationStatus->getStatusMessage();
         if ($extension->getNeedsUploadFolder()) {
             $message .= '<br />Notice: File upload is not yet implemented.';
         }
         $result = array('success' => $message);
         if ($this->extensionInstallationStatus->isDbUpdateNeeded()) {
             $result['confirmUpdate'] = true;
         }
     } catch (\Exception $e) {
         throw $e;
     }
     $this->extensionRepository->saveExtensionConfiguration($extension);
     return $result;
 }