eventespresso / event-espresso-core

     * @return string

     * @throws InvalidIdentifierException

     */

    private function processIdentifier($identifier)

    {

        if ( ! is_string($identifier)) {

            throw new InvalidIdentifierException(

                is_object($identifier) ? get_class($identifier) : gettype($identifier),

                '\Fully\Qualified\ClassName'

            );

        }

        return ltrim($identifier, '\\');

    }

     * @param  string $identifier Identifier for the entity class that the Recipe applies to

     *                            Typically a Fully Qualified Class Name

     */

    public function setIdentifier($identifier)

    {

        if ( ! is_string($identifier) || empty($identifier)) {

            throw new InvalidIdentifierException(

                is_object($identifier) ? get_class($identifier) : gettype($identifier),

                __('class identifier (typically a \Fully\Qualified\ClassName)', 'event_espresso')

            );

        }

        $this->identifier = $identifier;

    }

    /**

     * @param $type

     */

    public static function validateType($type)

    {

        $types = CoffeeMaker::getTypes();

        if ( ! in_array($type, $types)) {

            throw new InvalidIdentifierException(

                is_object($type) ? get_class($type) : gettype($type),

                __(

                    'recipe type (one of the class constants on \EventEspresso\core\services\container\CoffeeMaker)',

                    'event_espresso'

                )

            );

        }

        return $type;

    }