hdtp/es5/FilterTransform.js

Heterogeneous Data Transform and Propagation

'use strict';

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _Queue2 = require('qee/dist/Queue');

var _Queue3 = _interopRequireDefault(_Queue2);

var _FilterException = require('./FilterException');

var _FilterException2 = _interopRequireDefault(_FilterException);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var FilterTransform = (function (_Queue) {
	_inherits(FilterTransform, _Queue);

	function FilterTransform() {
		_classCallCheck(this, FilterTransform);

		return _possibleConstructorReturn(this, Object.getPrototypeOf(FilterTransform).apply(this, arguments));
	}

	_createClass(FilterTransform, [{
		key: 'process',
		value: function process(data) {
			var _iteratorNormalCompletion = true;
			var _didIteratorError = false;
			var _iteratorError = undefined;

			try {
				for (var _iterator = this[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
					var trn = _step.value;

					try {
						data = trn(data);
					} catch (err) {
						if (err instanceof _FilterException2.default) return null;

						throw err;
					}

					if (data === null) return null;
				}
			} catch (err) {
				_didIteratorError = true;
				_iteratorError = err;
			} finally {
				try {
					if (!_iteratorNormalCompletion && _iterator.return) {
						_iterator.return();
					}
				} finally {
					if (_didIteratorError) {
						throw _iteratorError;
					}
				}
			}

			return data;
		}
	}]);

	return FilterTransform;
})(_Queue3.default);

exports.default = FilterTransform;