node-aurora/lib/AuroraTransformObject.js

Provides an interface to the Aurora Dreamband.

'use strict';

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

var _getIterator2 = require('babel-runtime/core-js/get-iterator');

var _getIterator3 = _interopRequireDefault(_getIterator2);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _stream = require('stream');

var _stream2 = _interopRequireDefault(_stream);

var _flat = require('flat');

var _flat2 = _interopRequireDefault(_flat);

var _util = require('./util');

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

var AuroraTransformObject = function (_Stream$Transform) {
    (0, _inherits3.default)(AuroraTransformObject, _Stream$Transform);

    function AuroraTransformObject() {
        (0, _classCallCheck3.default)(this, AuroraTransformObject);

        var _this = (0, _possibleConstructorReturn3.default)(this, (AuroraTransformObject.__proto__ || (0, _getPrototypeOf2.default)(AuroraTransformObject)).call(this, { objectMode: true, encoding: null }));

        _this._leftoverData = '';
        _this._transformedObject = {};
        return _this;
    }

    (0, _createClass3.default)(AuroraTransformObject, [{
        key: '_transform',
        value: function _transform(chunk, encoding, done) {

            chunk = chunk.toString();

            if (this._leftoverData) {
                chunk = this._leftoverData + chunk;
                this._leftoverData = '';
            }

            var lines = chunk.split('\n');

            this._leftoverData = lines.pop();

            lines = lines.map(function (line) {
                return line.trim();
            }).filter(String);

            var _iteratorNormalCompletion = true;
            var _didIteratorError = false;
            var _iteratorError = undefined;

            try {
                for (var _iterator = (0, _getIterator3.default)(lines), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                    var line = _step.value;


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

            done();
        }
    }, {
        key: '_flush',
        value: function _flush(done) {

            this._leftoverData = this._leftoverData.trim();

            if (this._leftoverData) {

                this._processLine(this._leftoverData);
            }

            this.push((0, _util.camelCaseObjectKeys)(_flat2.default.unflatten(this._transformedObject)));

            done();
        }
    }, {
        key: '_processLine',
        value: function _processLine(line) {

            var key_value = line.split(':');

            if (key_value.length >= 2) {

                var key = key_value.shift().trim();

                this._transformedObject[key] = (0, _util.parseValueString)(key_value.join(':'));
            }
        }
    }]);
    return AuroraTransformObject;
}(_stream2.default.Transform);

exports.default = AuroraTransformObject;