relution-sdk
Version:
Relution Software Development Kit for TypeScript and JavaScript
94 lines • 11.2 kB
JavaScript
/*
* @file livedata/SyncEndpoint.ts
* Relution SDK
*
* Created by Thomas Beckmann on 07.12.2015
* Copyright 2016 M-Way Solutions GmbH
*
* 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.
*/
/**
* @module livedata
*/
/** */
"use strict";
var url = require('url');
/**
* very simple hash coding implementation.
*
* @internal For library use only.
*/
function hashCode() {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i - 0] = arguments[_i];
}
var hash = 0;
for (var i = 0; i < args.length; ++i) {
var str = args[i] || '';
for (var j = 0, l = str.length; j < l; ++j) {
var char = str.charCodeAt(j);
hash = ((hash << 5) - hash) + char;
hash |= 0; // Convert to 32bit integer
}
}
return hash;
}
exports.hashCode = hashCode;
/**
* manages connection of SyncStore to one entity.
*/
var SyncEndpoint = (function () {
function SyncEndpoint(options) {
this.isConnected = null;
this.entity = options.entity;
this.modelType = options.modelType;
this.urlRoot = options.urlRoot;
this.socketPath = options.socketPath;
this.userUuid = options.userUuid;
// notice socket.io needs port even for standard protocols
var href = url.parse(options.urlRoot);
this.host = href.protocol + '//' + href.hostname;
if (href.port) {
this.host += ':' + href.port;
}
else if (href.protocol === 'https:') {
this.host += ':443';
}
else if (href.protocol === 'http:') {
this.host += ':80';
}
this.path = href.pathname;
var user = options.userUuid ? options.userUuid + '/' : '';
var name = options.entity;
var hash = hashCode(this.host);
this.channel = user + name + '/' + hash;
}
/**
* close the endpoint explicit.
*/
SyncEndpoint.prototype.close = function () {
if (this.socket) {
// consider calling this.socket.close() instead
this.socket.socket.close();
this.socket = null;
}
if (this.localStore) {
this.localStore.close();
this.localStore = null;
}
};
return SyncEndpoint;
}());
exports.SyncEndpoint = SyncEndpoint;
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i < args.length; ++i) {\r\n    var str = args[i] || '';\r\n    for (var j = 0, l = str.length; j < l; ++j) {\r\n      var char = str.charCodeAt(j);\r\n      hash = ((hash << 5) - hash) + char;\r\n      hash |= 0; // Convert to 32bit integer\r\n    }\r\n  }\r\n  return hash;\r\n}\r\n\r\n/**\r\n * manages connection of SyncStore to one entity.\r\n */\r\nexport class SyncEndpoint {\r\n\r\n  public entity: string;\r\n  public modelType: ModelCtor;\r\n  public urlRoot: string;\r\n  public socketPath: string;\r\n  public userUuid: string;\r\n\r\n  public host: string;\r\n  public path: string;\r\n  public channel: string;\r\n  public isConnected: Q.Promise<void> = null;\r\n\r\n  public localStore: Store;\r\n  public info: Q.Promise<Model>;\r\n  public priority: number;\r\n  public socket: SocketIOClient.Socket;\r\n\r\n  // promise of last SyncStore.fetchChanges\r\n  public promiseFetchingChanges: Q.Promise<Collection>;\r\n  // timestamp of last SyncStore.fetchChanges, 0 while request is outstanding\r\n  public timestampFetchingChanges: number;\r\n\r\n  // promise of last SyncStore.fetchServerInfo\r\n  public promiseFetchingServerInfo: Q.Promise<Model>;\r\n  // timestamp of last SyncStore.fetchServerInfo, 0 while request is outstanding\r\n  public timestampFetchingServerInfo: number;\r\n\r\n  constructor(options: {\r\n    entity: string,\r\n    modelType: ModelCtor,\r\n    urlRoot: string,\r\n    socketPath: string,\r\n    userUuid: string\r\n  }) {\r\n    this.entity = options.entity;\r\n    this.modelType = options.modelType;\r\n    this.urlRoot = options.urlRoot;\r\n    this.socketPath = options.socketPath;\r\n    this.userUuid = options.userUuid;\r\n    // notice socket.io needs port even for standard protocols\r\n    const href = url.parse(options.urlRoot);\r\n    this.host = href.protocol + '//' + href.hostname;\r\n    if (href.port) {\r\n      this.host += ':' + href.port;\r\n    } else if (href.protocol === 'https:') {\r\n      this.host += ':443';\r\n    } else if (href.protocol === 'http:') {\r\n      this.host += ':80';\r\n    }\r\n    this.path = href.pathname;\r\n\r\n    const user = options.userUuid ? options.userUuid + '/' : '';\r\n    const name = options.entity;\r\n    const hash = hashCode(this.host);\r\n    this.channel = user + name + '/' + hash;\r\n  }\r\n\r\n  /**\r\n   * close the endpoint explicit.\r\n   */\r\n  public close() {\r\n    if (this.socket) {\r\n      // consider calling this.socket.close() instead\r\n      (<any>this.socket).socket.close();\r\n      this.socket = null;\r\n    }\r\n    if (this.localStore) {\r\n      this.localStore.close();\r\n      this.localStore = null;\r\n    }\r\n  }\r\n}\r\n"]}