@hms-networks/kolibri-js-client
Version:
Kolibri Consumer API client for building kolibri based applications
253 lines • 13.2 kB
JavaScript
/*
* Copyright 2021 HMS Industrial Networks AB
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http: //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
import { isDefined } from '@hms-networks/kolibri-js-core';
import WebSocketAsPromised from 'websocket-as-promised';
import { classToPlain } from 'class-transformer';
import { w3cwebsocket as WebSocket } from 'websocket';
var KolibriConnection = /** @class */ (function () {
function KolibriConnection(options) {
var _a, _b;
this.options = options;
this.reconnectRetries = 0;
this.reconnectBackoffTime = 1;
this.clientMessageListener = options.clientMessageListener;
this.reconnectRetries = (_b = (_a = this.options.reconnectOptions) === null || _a === void 0 ? void 0 : _a.maxReconnects) !== null && _b !== void 0 ? _b : 0;
}
KolibriConnection.prototype.addClientMessageListener = function (listener) {
this.clientMessageListener = listener;
};
KolibriConnection.prototype.addOnReconnectListener = function (listener) {
this.onReconnectListener = listener;
};
KolibriConnection.prototype.addOnDisconnectListener = function (listener) {
this.onDisconnectListener = listener;
};
KolibriConnection.prototype.sendRequest = function (request) {
return __awaiter(this, void 0, void 0, function () {
var plainRequest, requestId;
return __generator(this, function (_a) {
plainRequest = classToPlain(request);
requestId = request.id;
if (!isDefined(this.socket) || !this.socket.isOpened) {
throw new Error('Socket is not open!');
}
return [2 /*return*/, this.socket.sendRequest(plainRequest, { requestId: requestId })];
});
});
};
KolibriConnection.prototype.sendResponse = function (response) {
return __awaiter(this, void 0, void 0, function () {
var plainResponse;
return __generator(this, function (_a) {
plainResponse = classToPlain(response);
if (!isDefined(this.socket) || !this.socket.isOpened) {
throw new Error('Socket is not open!');
}
return [2 /*return*/, this.socket.sendPacked(plainResponse)];
});
});
};
KolibriConnection.prototype.connect = function () {
return __awaiter(this, void 0, void 0, function () {
var e_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
this.socket = this.createWebSocket(this.options.url.toString(), this.options.protocol);
this.addListeners();
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, this.socket.open()];
case 2:
_a.sent();
return [3 /*break*/, 4];
case 3:
e_1 = _a.sent();
throw new Error('Could not open connection!');
case 4: return [2 /*return*/];
}
});
});
};
KolibriConnection.prototype.close = function () {
var _a;
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_b) {
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.close();
return [2 /*return*/];
});
});
};
KolibriConnection.prototype.disableReconnect = function () {
var _a;
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.onClose.mute();
};
KolibriConnection.prototype.enableReconnect = function () {
var _a;
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.onClose.unmute();
};
KolibriConnection.prototype.createWebSocket = function (brokerUrl, kolibriProtocol) {
var _this = this;
return new WebSocketAsPromised(brokerUrl, {
createWebSocket: function (url) {
var _a;
return new WebSocket(url, kolibriProtocol, undefined, undefined, _this.options.requestOptions, { tlsOptions: (_a = _this.options.tlsOptions) !== null && _a !== void 0 ? _a : {} });
},
packMessage: function (data) { return JSON.stringify(data); },
unpackMessage: function (data) { return JSON.parse(data); },
attachRequestId: function (data, requestId) { return Object.assign({ id: requestId }, data); },
extractRequestId: function (data) { return data && data.id; }
});
};
KolibriConnection.prototype.addListeners = function () {
var _this = this;
var _a, _b, _c, _d;
(_a = this.socket) === null || _a === void 0 ? void 0 : _a.onUnpackedMessage.addListener(function (msg) { var _a; (_a = _this.clientMessageListener) === null || _a === void 0 ? void 0 : _a.call(_this, msg); });
if (this.options.reconnectOptions) {
(_b = this.socket) === null || _b === void 0 ? void 0 : _b.onClose.addOnceListener(function (event) { return __awaiter(_this, void 0, void 0, function () {
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, ((_a = this.onDisconnectListener) === null || _a === void 0 ? void 0 : _a.call(this, { code: event.code, reason: event.reason }))];
case 1:
_b.sent();
return [2 /*return*/];
}
});
}); });
(_c = this.socket) === null || _c === void 0 ? void 0 : _c.onClose.addListener(function () { return __awaiter(_this, void 0, void 0, function () { return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.reconnectHandler()];
case 1:
_a.sent();
return [2 /*return*/];
}
}); }); });
}
else {
(_d = this.socket) === null || _d === void 0 ? void 0 : _d.onClose.addListener(function (event) { return __awaiter(_this, void 0, void 0, function () {
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, ((_a = this.onDisconnectListener) === null || _a === void 0 ? void 0 : _a.call(this, { code: event.code, reason: event.reason }))];
case 1:
_b.sent();
return [2 /*return*/];
}
});
}); });
}
};
KolibriConnection.prototype.reconnectHandler = function () {
return __awaiter(this, void 0, void 0, function () {
var _this = this;
return __generator(this, function (_a) {
if (this.reconnectRetries > 0) {
setTimeout(function () { return __awaiter(_this, void 0, void 0, function () {
var e_2;
var _a, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_c.trys.push([0, 3, , 4]);
return [4 /*yield*/, ((_a = this.socket) === null || _a === void 0 ? void 0 : _a.open())];
case 1:
_c.sent();
// successfully connected
this.resetReconnectConfig();
return [4 /*yield*/, ((_b = this.onReconnectListener) === null || _b === void 0 ? void 0 : _b.call(this))];
case 2:
_c.sent();
return [3 /*break*/, 4];
case 3:
e_2 = _c.sent();
this.prepareReconnectConfigForNextTry();
return [3 /*break*/, 4];
case 4: return [2 /*return*/];
}
});
}); }, this.reconnectBackoffTime * 1000);
}
else {
// Do nothing - Could not reconnect. Giving up
}
return [2 /*return*/];
});
});
};
KolibriConnection.prototype.resetReconnectConfig = function () {
var _this = this;
var _a, _b, _c;
this.reconnectBackoffTime = 1;
this.reconnectRetries = (_b = (_a = this.options.reconnectOptions) === null || _a === void 0 ? void 0 : _a.maxReconnects) !== null && _b !== void 0 ? _b : 0;
(_c = this.socket) === null || _c === void 0 ? void 0 : _c.onClose.addOnceListener(function (event) { return __awaiter(_this, void 0, void 0, function () {
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, ((_a = this.onDisconnectListener) === null || _a === void 0 ? void 0 : _a.call(this, { code: event.code, reason: event.reason }))];
case 1:
_b.sent();
return [2 /*return*/];
}
});
}); });
};
KolibriConnection.prototype.prepareReconnectConfigForNextTry = function () {
var _a, _b;
this.reconnectRetries--;
this.reconnectBackoffTime = Math.min(this.reconnectBackoffTime * 2, (_b = (_a = this.options.reconnectOptions) === null || _a === void 0 ? void 0 : _a.maxReconnectDelay) !== null && _b !== void 0 ? _b : 1);
};
return KolibriConnection;
}());
export { KolibriConnection };
//# sourceMappingURL=kolibri_connection.js.map