trait FrxAPI in Forena Reports 8

trait FrxAPI {

  /**
   * Returns the data manager service
   * @return DataManager
   */
  public function dataManager() {
    return DataManager::instance();
  }

  /**
   * Returns the fornea document manager
   * @return \Drupal\forena\DocManager
   */
  public function documentManager() {
    return DocManager::instance();
  }

  /**
   * Return Data Service
   * @return \Drupal\forena\Context\DataContext
   */
  public function dataService() {
    return DataManager::instance()->dataSvc;
  }

  /**
   * Report an error
   *
   * @param string $short_message
   *   Short Error message
   * @param string $log
   *   Log message for system logs
   */
  public function error($short_message, $log = '') {
    AppService::instance()
      ->error($short_message, $log);
  }

  /**
   * Returns containing application service
   * @return \Drupal\forena\AppService
   */
  public function app() {
    return AppService::instance();
  }

  /**
   * Get the current report file system.
   * @return \Drupal\forena\File\ReportFileSystem
   */
  public function reportFileSystem() {
    return ReportFileSystem::instance();
  }

  /**
   * Load the contents of a file in the report file system.
   * @param $filename
   * @return string
   */
  public function getReportFileContents($filename) {
    return ReportFileSystem::instance()
      ->contents($filename);
  }

  /**
   * Get the current data context.
   * @return array|\SimpleXMLElement
   */
  public function currentDataContext() {
    return DataManager::instance()->dataSvc
      ->currentContext();
  }
  public function currentDataContextArray() {
    return DataManager::instance()->dataSvc
      ->currentContextArray();
  }

  /**
   * Get the context of a specific id.
   * @param $id
   * @return mixed
   */
  public function getDataContext($id) {
    return DataManager::instance()->dataSvc
      ->getContext($id);
  }

  /**
   * Set Data context by id.
   * @param string $id
   *   ID of the context to set
   * @param object | array $data
   *   Data contents to set.
   */
  public function setDataContext($id, $data) {
    DataManager::instance()->dataSvc
      ->setContext($id, $data);
  }

  /**
   * Push data onto the Stack
   * @param $data
   * @param string $id
   */
  public function pushData($data, $id = '') {
    DataManager::instance()->dataSvc
      ->push($data, $id);
  }

  /**
   * Pop data off of the stack.
   */
  public function popData() {
    DataManager::instance()->dataSvc
      ->pop();
  }

  /**
   * Change to a specific document type.
   * @param string $type
   *   The document type you are trying to retrieve.
   */
  public function setDocument($type = 'drupal') {
    DocManager::instance()
      ->setDocument($type);
  }

  /**
   * Get the current document
   * @return DocumentBase
   */
  public function getDocument() {
    return DocManager::instance()
      ->getDocument();
  }

  /**
   * Enter description here...
   *
   * @param \SimpleXMLElement $xml
   *   XML to grab
   * @param string $tag
   *   The tag name of the inner XML
   * @return string
   */
  function innerXML(\SimpleXMLElement $xml, $tag = '') {
    if (is_object($xml)) {
      if (!$tag) {
        $tag = $xml
          ->getName();
      }
      $xml_data = $xml
        ->asXML();
      $xml_data = preg_replace("/<\\/?" . $tag . "(.|\\s)*?>/", "", $xml_data);
    }
    return $xml_data;
  }

  /**
   * Run a report with a particular format.
   * @param $machine_name
   *   Name of report.
   * @parms array $parms
   *   Parameter values to pass to report
   * @return array|string
   */
  public function report($machine_name, $parms = []) {
    return ReportManager::instance()
      ->report($machine_name, $parms);
  }

  /**
   * Get list of skins.
   * @return array
   *   List of skins
   */
  public function skins() {
    return ReportManager::instance()
      ->skins();
  }

}