neomerx / json-api

            ));

        }

        if ($this->hasProviderMapping($type) === true) {

            throw new InvalidArgumentException(T::t(

                'Type should not be used more than once to register a schema (\'%s\').',

                [$type]

            ));

        }

        if ($schema instanceof SchemaProviderInterface) {

            $this->setProviderMapping($type, $jsonType = get_class($schema));

            return $this->getCreatedProvider($type);

        }

        if ($this->hasProviderMapping($type) === false) {

            throw new InvalidArgumentException(T::t('Schema is not registered for type \'%s\'.', [$type]));

        }

        $classNameOrCallable = $this->getProviderMapping($type);

        if (is_string($classNameOrCallable) === true) {