@jingbof/rets-client
Version:
RETS (Real Estate Transaction Standards) Client in Typescript
117 lines • 4.12 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getSearchItemStream = void 0;
var stream_1 = require("stream");
var xmlr_1 = require("@aequilibrium/xmlr");
var types_1 = require("../types");
var Mode;
(function (Mode) {
Mode["Waiting"] = "";
Mode["Columns"] = "columns";
Mode["Data"] = "data";
})(Mode || (Mode = {}));
var DATA_SPLIT = '\t';
var getSearchItemStream = function (xmlStream, processText) {
if (processText === void 0) { processText = function (text) { return text; }; }
var transformer = new stream_1.Transform({
objectMode: true,
transform: function (data, _, callback) {
// console.log('transformer received data', data.Ml_num)
this.push(data);
callback();
},
flush: function (callback) {
callback();
},
});
var searchParser = new xmlr_1.Parser(); // new Parser('UTF-8')
var columns = [];
var mode = Mode.Waiting;
var delimiter = null;
var content = '';
var onStartElement = function (name, attrs) {
// console.log('startElement', name, attrs)
switch (name) {
case types_1.RetsKeys.Rets:
if ((attrs === null || attrs === void 0 ? void 0 : attrs.ReplyCode) && (attrs === null || attrs === void 0 ? void 0 : attrs.ReplyCode) !== '0') {
throw new Error("Error during login [".concat(JSON.stringify(attrs), "]"));
}
break;
case types_1.RetsKeys.Columns:
mode = Mode.Columns;
break;
case types_1.RetsKeys.Data:
mode = Mode.Data;
break;
case types_1.RetsKeys.Delimiter:
delimiter = attrs.value;
// console.log('delim', this.delimiter)
break;
default:
throw new Error("Unexpected Element: [".concat(name, "] [").concat(JSON.stringify(attrs), "]"));
}
content = '';
};
var onEndElement = function (name) {
var data = content.split(DATA_SPLIT);
if (name === types_1.RetsKeys.Rets) {
transformer.end();
}
switch (mode) {
case Mode.Columns:
if (name === types_1.RetsKeys.Columns) {
columns = data;
}
break;
case Mode.Data:
if (name === types_1.RetsKeys.Data) {
transformer.write(columns.reduce(function (result, key, index) {
var _a;
return (key !== '' ? __assign(__assign({}, result), (_a = {}, _a[key] = data[index], _a)) : result);
}, {}));
}
break;
default:
break;
}
mode = Mode.Waiting;
};
var onText = function (text) {
content += processText(text);
};
var onEnd = function () {
// console.log('ending stream!')
// transformer.end()
};
var onClose = function () {
// console.log('onClose!')
// transformer.end()
};
// convert the data events to a stream of events
searchParser
.on('startElement', onStartElement)
.on('endElement', onEndElement)
.on('text', onText)
.on('end', onEnd)
.on('close', onClose);
// pipeline([xmlStream, searchParser], (err, val) => {
// console.log('pipeline finished', err, val)
// })
if (xmlStream !== null) {
xmlStream.pipe(searchParser);
}
return transformer;
};
exports.getSearchItemStream = getSearchItemStream;
//# sourceMappingURL=getSearchItemStream.js.map