intern/lib/channels/Http.js

Intern. A next-generation code testing stack for JavaScript.

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports", "tslib", "@dojo/core/request/providers/xhr", "@dojo/core/async/Task", "./Base"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var tslib_1 = require("tslib");
    var xhr_1 = require("@dojo/core/request/providers/xhr");
    var Task_1 = require("@dojo/core/async/Task");
    var Base_1 = require("./Base");
    var HttpChannel = (function (_super) {
        tslib_1.__extends(HttpChannel, _super);
        function HttpChannel(options) {
            var _this = _super.call(this, options) || this;
            _this._sequence = 1;
            _this._maxPostSize = options.maxPostSize || 100000;
            _this._messageBuffer = [];
            _this._lastRequest = Task_1.default.resolve();
            return _this;
        }
        HttpChannel.prototype._sendData = function (name, data) {
            var _this = this;
            var id = String(this._sequence++);
            var sessionId = this.sessionId;
            var message = { id: id, sessionId: sessionId, name: name, data: data };
            var task = new Task_1.default(function (resolve, reject) {
                _this._messageBuffer.push({
                    message: JSON.stringify(message),
                    resolve: resolve,
                    reject: reject
                });
                if (_this._activeRequest) {
                    _this._activeRequest.then(function () { return _this._sendMessages(); });
                }
                else {
                    _this._sendMessages();
                }
            }, function () {
                if (_this._activeRequest) {
                    _this._activeRequest.cancel();
                }
                _this._messageBuffer = [];
            });
            return task;
        };
        HttpChannel.prototype._sendMessages = function () {
            var _this = this;
            var messages = this._messageBuffer;
            if (messages.length === 0) {
                return;
            }
            var block = [messages.shift()];
            var size = block[0].message.length;
            while (messages.length > 0 &&
                size + messages[0].message.length < this._maxPostSize) {
                size += messages[0].message.length;
                block.push(messages.shift());
            }
            this._activeRequest = xhr_1.default(this.url, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(block.map(function (entry) { return entry.message; }))
            })
                .then(function (response) {
                if (response.status === 200) {
                    return response.json();
                }
                else if (response.status === 204) {
                    return [];
                }
                else {
                    throw new Error(response.statusText);
                }
            })
                .then(function (results) {
                block.forEach(function (entry, index) {
                    entry.resolve(results[index]);
                });
            })
                .catch(function (error) {
                block.forEach(function (entry) {
                    entry.reject(error);
                });
            })
                .finally(function () {
                _this._activeRequest = undefined;
                if (messages.length > 0) {
                    return _this._sendMessages();
                }
            });
            return this._activeRequest;
        };
        return HttpChannel;
    }(Base_1.default));
    exports.default = HttpChannel;
});
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