├── .gitignore ├── .editorconfig ├── bower.json ├── src └── main │ └── bower │ └── bower.json ├── README.md ├── pom.xml ├── LICENSE.txt └── vertx-eventbus.js /.gitignore: -------------------------------------------------------------------------------- 1 | .settings/ 2 | target 3 | *.iml 4 | *.idea 5 | .idea/ 6 | .project 7 | .classpath 8 | .vscode -------------------------------------------------------------------------------- /.editorconfig: -------------------------------------------------------------------------------- 1 | root = true 2 | 3 | [*] 4 | charset = utf-8 5 | indent_style = space 6 | indent_size = 2 7 | trim_trailing_whitespace = true 8 | end_of_line = lf 9 | insert_final_newline = true 10 | -------------------------------------------------------------------------------- /bower.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "vertx3-eventbus-client", 3 | "version": "3.9.4", 4 | "homepage": "http://vertx.io", 5 | "authors": [ 6 | "The Vert.x Team" 7 | ], 8 | "description": "Vert.x Event Bus Client for vert.x 3.9.4", 9 | "main": "vertx-eventbus.js", 10 | "moduleType": [ 11 | "amd" 12 | ], 13 | "repository": { 14 | "type": "git", 15 | "url": "git://github.com/vert-x3/vertx-stack.git" 16 | }, 17 | "keywords": [ 18 | "vert.x", 19 | "sockjs", 20 | "websocket", 21 | "websockets" 22 | ], 23 | "ignore": [ 24 | "src", 25 | "target", 26 | "pom.xml", 27 | "README.md" 28 | ], 29 | "license": "Apache-2.0" 30 | } 31 | -------------------------------------------------------------------------------- /src/main/bower/bower.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "vertx3-eventbus-client", 3 | "version": "${package.version}", 4 | "homepage": "http://vertx.io", 5 | "authors": [ 6 | "The Vert.x Team" 7 | ], 8 | "description": "Vert.x Event Bus Client for vert.x ${vertx.version}", 9 | "main": "vertx-eventbus.js", 10 | "moduleType": [ 11 | "amd" 12 | ], 13 | "repository": { 14 | "type": "git", 15 | "url": "git://github.com/vert-x3/vertx-stack.git" 16 | }, 17 | "keywords": [ 18 | "vert.x", 19 | "sockjs", 20 | "websocket", 21 | "websockets" 22 | ], 23 | "ignore": [ 24 | "src", 25 | "target", 26 | "pom.xml", 27 | "README.md" 28 | ], 29 | "license": "Apache-2.0" 30 | } 31 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## SockJS Event Bus bridge for Vert.x 3 2 | The `vertx-eventbus.js` file is a SockJS-based event bus bridge to connect your JavaScript frontend application to Vert 3 | .x 3.x. You can use it in a front-end application or in a node.js application. 4 | 5 | If you already use a previous version of the bridge, please check the changelog below. 6 | 7 | * The vert.x web site: http://vertx.io 8 | * The Event Bus Bridge documentation: http://vertx.io/docs/vertx-web/java/#_sockjs_event_bus_bridge 9 | 10 | ## Changelog 11 | 12 | **Changes from the 3.2 to 3.2.1** 13 | 14 | * Update the eventbus client version to 3.2.1 15 | 16 | **Changes from the 3.1.1 to 3.2** 17 | 18 | * Update the eventbus client version to 3.2.0 19 | 20 | **Changes from the 3.1 to 3.1.1** 21 | 22 | * Update the `main` attribute in the `bower.json` file. 23 | 24 | **Changes from the 3.0.x to 3.1** 25 | 26 | * IMPORTANT: The API has been changed to be compatible with node.js and to be closer to the vert.x eventbus API 27 | .Creating the bridge is made using `var eb = new EventBus("http://localhost:8080/eventbus");` instead of `new vertx 28 | .EventBus...`. In addition, registering a handler use the node convention: 29 | `eb.registerHandler("metrics", function(err, res) {...}` instead of `ev.registerHandler("metrics", res)`. 30 | * The file name has been updated to `eventbus-client.js` 31 | 32 | ## Build 33 | 34 | This project is exotic... It generate a git repository compliant with the Bower expectation. It: 35 | 36 | 1. Compute the `bower.json` content and copy it to the root directory 37 | 2. Download the vert.x event bus bridge and copy it to the root directory 38 | 39 | Generation is triggered by `mvn clean package` 40 | 41 | ## Updating 42 | 43 | * 1) Open the `pom.xml` file and edit the `vertx.version` property (~ project version) and the `package.version` (packaging iteration) 44 | * 2) Update using `mvn clean package` 45 | * 3) Add all modified files: 46 | 47 | NOTE: the `$VERSION` is the `package.version` 48 | 49 | ``` 50 | git add bower.json vertx-eventbus.js pom.xml README.md 51 | ``` 52 | 53 | * 4) Commit 54 | 55 | ``` 56 | git commit -m "update version to $VERSION" 57 | 58 | ``` 59 | * 5) Create tag 60 | 61 | ``` 62 | git tag -a $VERSION -m "tag for version $VERSION" 63 | ``` 64 | 65 | * 6) Push everything 66 | 67 | ``` 68 | git push origin --tags master 69 | ``` 70 | 71 | Done. 72 | 73 | As the repository is already registered on Bower, the update should be automatic. 74 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 4.0.0 6 | 7 | io.vertx 8 | vertxbus-bower 9 | 3.9.4 10 | 11 | 12 | pom 13 | 14 | 15 | 3.9.4 16 | 3.9.4 17 | 18 | 19 | 20 | 21 | io.vertx 22 | vertx-web 23 | ${vertx.version} 24 | client 25 | js 26 | 27 | 28 | 29 | 30 | 31 | 32 | ${project.basedir}/src/main/bower 33 | true 34 | ${project.basedir} 35 | 36 | 37 | 38 | 39 | maven-resources-plugin 40 | 2.7 41 | 42 | 43 | 44 | resources 45 | 46 | process-resources 47 | 48 | 49 | 50 | 51 | maven-dependency-plugin 52 | 2.10 53 | 54 | 55 | copy-vertxbus-js 56 | compile 57 | 58 | copy-dependencies 59 | 60 | 61 | vertx-web 62 | client 63 | ${project.build.directory}/client 64 | true 65 | 66 | 67 | 68 | 69 | 70 | maven-antrun-plugin 71 | 1.8 72 | 73 | 74 | move-vertxbus 75 | 76 | run 77 | 78 | prepare-package 79 | 80 | 81 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | -------------------------------------------------------------------------------- /LICENSE.txt: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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This program and the accompanying materials 5 | * are made available under the terms of the Eclipse Public License v1.0 6 | * and Apache License v2.0 which accompanies this distribution. 7 | * 8 | * The Eclipse Public License is available at 9 | * http://www.eclipse.org/legal/epl-v10.html 10 | * 11 | * The Apache License v2.0 is available at 12 | * http://www.opensource.org/licenses/apache2.0.php 13 | * 14 | * You may elect to redistribute this code under either of these licenses. 15 | */ 16 | !function (factory) { 17 | if (typeof require === 'function' && typeof module !== 'undefined') { 18 | // CommonJS loader 19 | var SockJS = require('sockjs-client'); 20 | if (!SockJS) { 21 | throw new Error('vertx-eventbus.js requires sockjs-client, see http://sockjs.org'); 22 | } 23 | factory(SockJS); 24 | } else if (typeof define === 'function' && define.amd) { 25 | // AMD loader 26 | define('vertx-eventbus', ['sockjs'], factory); 27 | } else { 28 | // plain old include 29 | if (typeof this.SockJS === 'undefined') { 30 | throw new Error('vertx-eventbus.js requires sockjs-client, see http://sockjs.org'); 31 | } 32 | 33 | EventBus = factory(this.SockJS); 34 | } 35 | }(function (SockJS) { 36 | 37 | function makeUUID() { 38 | return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (a, b) { 39 | return b = Math.random() * 16, (a == 'y' ? b & 3 | 8 : b | 0).toString(16); 40 | }); 41 | } 42 | 43 | function mergeHeaders(defaultHeaders, headers) { 44 | if (defaultHeaders) { 45 | if (!headers) { 46 | return defaultHeaders; 47 | } 48 | 49 | for (var headerName in defaultHeaders) { 50 | if (defaultHeaders.hasOwnProperty(headerName)) { 51 | // user can overwrite the default headers 52 | if (typeof headers[headerName] === 'undefined') { 53 | headers[headerName] = defaultHeaders[headerName]; 54 | } 55 | } 56 | } 57 | } 58 | 59 | // headers are required to be a object 60 | return headers || {}; 61 | } 62 | 63 | /** 64 | * EventBus 65 | * 66 | * @param url 67 | * @param options 68 | * @constructor 69 | */ 70 | var EventBus = function (url, options) { 71 | var self = this; 72 | 73 | options = options || {}; 74 | 75 | // attributes 76 | this.pingInterval = options.vertxbus_ping_interval || 5000; 77 | this.pingTimerID = null; 78 | 79 | this.reconnectEnabled = false; 80 | this.reconnectAttempts = 0; 81 | this.reconnectTimerID = null; 82 | // adapted from backo 83 | this.maxReconnectAttempts = options.vertxbus_reconnect_attempts_max || Infinity; 84 | this.reconnectDelayMin = options.vertxbus_reconnect_delay_min || 1000; 85 | this.reconnectDelayMax = options.vertxbus_reconnect_delay_max || 5000; 86 | this.reconnectExponent = options.vertxbus_reconnect_exponent || 2; 87 | this.randomizationFactor = options.vertxbus_randomization_factor || 0.5; 88 | var getReconnectDelay = function() { 89 | var ms = self.reconnectDelayMin * Math.pow(self.reconnectExponent, self.reconnectAttempts); 90 | if (self.randomizationFactor) { 91 | var rand = Math.random(); 92 | var deviation = Math.floor(rand * self.randomizationFactor * ms); 93 | ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation; 94 | } 95 | return Math.min(ms, self.reconnectDelayMax) | 0; 96 | }; 97 | 98 | this.defaultHeaders = null; 99 | 100 | // default event handlers 101 | this.onerror = function (err) { 102 | try { 103 | console.error(err); 104 | } catch (e) { 105 | // dev tools are disabled so we cannot use console on IE 106 | } 107 | }; 108 | 109 | var setupSockJSConnection = function () { 110 | self.sockJSConn = new SockJS(url, null, options); 111 | self.state = EventBus.CONNECTING; 112 | 113 | // handlers and reply handlers are tied to the state of the socket 114 | // they are added onopen or when sending, so reset when reconnecting 115 | self.handlers = {}; 116 | self.replyHandlers = {}; 117 | 118 | self.sockJSConn.onopen = function () { 119 | self.enablePing(true); 120 | self.state = EventBus.OPEN; 121 | self.onopen && self.onopen(); 122 | if (self.reconnectTimerID) { 123 | self.reconnectAttempts = 0; 124 | // fire separate event for reconnects 125 | // consistent behavior with adding handlers onopen 126 | self.onreconnect && self.onreconnect(); 127 | } 128 | }; 129 | 130 | self.sockJSConn.onclose = function (e) { 131 | self.state = EventBus.CLOSED; 132 | if (self.pingTimerID) clearInterval(self.pingTimerID); 133 | if (self.reconnectEnabled && self.reconnectAttempts < self.maxReconnectAttempts) { 134 | self.sockJSConn = null; 135 | // set id so users can cancel 136 | self.reconnectTimerID = setTimeout(setupSockJSConnection, getReconnectDelay()); 137 | ++self.reconnectAttempts; 138 | } 139 | self.onclose && self.onclose(e); 140 | }; 141 | 142 | self.sockJSConn.onmessage = function (e) { 143 | var json = JSON.parse(e.data); 144 | 145 | // define a reply function on the message itself 146 | if (json.replyAddress) { 147 | Object.defineProperty(json, 'reply', { 148 | value: function (message, headers, callback) { 149 | self.send(json.replyAddress, message, headers, callback); 150 | } 151 | }); 152 | } 153 | 154 | if (self.handlers[json.address]) { 155 | // iterate all registered handlers 156 | var handlers = self.handlers[json.address]; 157 | for (var i = 0; i < handlers.length; i++) { 158 | if (json.type === 'err') { 159 | handlers[i]({ failureCode: json.failureCode, failureType: json.failureType, message: json.message }); 160 | } else { 161 | handlers[i](null, json); 162 | } 163 | } 164 | } else if (self.replyHandlers[json.address]) { 165 | // Might be a reply message 166 | var handler = self.replyHandlers[json.address]; 167 | delete self.replyHandlers[json.address]; 168 | if (json.type === 'err') { 169 | handler({ failureCode: json.failureCode, failureType: json.failureType, message: json.message }); 170 | } else { 171 | handler(null, json); 172 | } 173 | } else { 174 | if (json.type === 'err') { 175 | self.onerror(json); 176 | } else { 177 | try { 178 | console.warn('No handler found for message: ', json); 179 | } catch (e) { 180 | // dev tools are disabled so we cannot use console on IE 181 | } 182 | } 183 | } 184 | } 185 | }; 186 | 187 | // function cannot be anonymous and self-calling due to pseudo-recursion 188 | setupSockJSConnection(); 189 | }; 190 | 191 | /** 192 | * Send a message 193 | * 194 | * @param {String} address 195 | * @param {Object} message 196 | * @param {Object} [headers] 197 | * @param {Function} [callback] 198 | */ 199 | EventBus.prototype.send = function (address, message, headers, callback) { 200 | // are we ready? 201 | if (this.state != EventBus.OPEN) { 202 | throw new Error('INVALID_STATE_ERR'); 203 | } 204 | 205 | if (typeof headers === 'function') { 206 | callback = headers; 207 | headers = {}; 208 | } 209 | 210 | var envelope = { 211 | type: 'send', 212 | address: address, 213 | headers: mergeHeaders(this.defaultHeaders, headers), 214 | body: message 215 | }; 216 | 217 | if (callback) { 218 | var replyAddress = makeUUID(); 219 | envelope.replyAddress = replyAddress; 220 | this.replyHandlers[replyAddress] = callback; 221 | } 222 | 223 | this.sockJSConn.send(JSON.stringify(envelope)); 224 | }; 225 | 226 | /** 227 | * Publish a message 228 | * 229 | * @param {String} address 230 | * @param {Object} message 231 | * @param {Object} [headers] 232 | */ 233 | EventBus.prototype.publish = function (address, message, headers) { 234 | // are we ready? 235 | if (this.state != EventBus.OPEN) { 236 | throw new Error('INVALID_STATE_ERR'); 237 | } 238 | 239 | this.sockJSConn.send(JSON.stringify({ 240 | type: 'publish', 241 | address: address, 242 | headers: mergeHeaders(this.defaultHeaders, headers), 243 | body: message 244 | })); 245 | }; 246 | 247 | /** 248 | * Register a new handler 249 | * 250 | * @param {String} address 251 | * @param {Object} [headers] 252 | * @param {Function} callback 253 | */ 254 | EventBus.prototype.registerHandler = function (address, headers, callback) { 255 | // are we ready? 256 | if (this.state != EventBus.OPEN) { 257 | throw new Error('INVALID_STATE_ERR'); 258 | } 259 | 260 | if (typeof headers === 'function') { 261 | callback = headers; 262 | headers = {}; 263 | } 264 | 265 | // ensure it is an array 266 | if (!this.handlers[address]) { 267 | this.handlers[address] = []; 268 | // First handler for this address so we should register the connection 269 | this.sockJSConn.send(JSON.stringify({ 270 | type: 'register', 271 | address: address, 272 | headers: mergeHeaders(this.defaultHeaders, headers) 273 | })); 274 | } 275 | 276 | this.handlers[address].push(callback); 277 | }; 278 | 279 | /** 280 | * Unregister a handler 281 | * 282 | * @param {String} address 283 | * @param {Object} [headers] 284 | * @param {Function} callback 285 | */ 286 | EventBus.prototype.unregisterHandler = function (address, headers, callback) { 287 | // are we ready? 288 | if (this.state != EventBus.OPEN) { 289 | throw new Error('INVALID_STATE_ERR'); 290 | } 291 | 292 | var handlers = this.handlers[address]; 293 | 294 | if (handlers) { 295 | 296 | if (typeof headers === 'function') { 297 | callback = headers; 298 | headers = {}; 299 | } 300 | 301 | var idx = handlers.indexOf(callback); 302 | if (idx != -1) { 303 | handlers.splice(idx, 1); 304 | if (handlers.length === 0) { 305 | // No more local handlers so we should unregister the connection 306 | this.sockJSConn.send(JSON.stringify({ 307 | type: 'unregister', 308 | address: address, 309 | headers: mergeHeaders(this.defaultHeaders, headers) 310 | })); 311 | 312 | delete this.handlers[address]; 313 | } 314 | } 315 | } 316 | }; 317 | 318 | /** 319 | * Closes the connection to the EventBus Bridge, 320 | * preventing any reconnect attempts 321 | */ 322 | EventBus.prototype.close = function () { 323 | this.state = EventBus.CLOSING; 324 | this.enableReconnect(false); 325 | this.sockJSConn.close(); 326 | }; 327 | 328 | EventBus.CONNECTING = 0; 329 | EventBus.OPEN = 1; 330 | EventBus.CLOSING = 2; 331 | EventBus.CLOSED = 3; 332 | 333 | EventBus.prototype.enablePing = function (enable) { 334 | var self = this; 335 | 336 | if (enable) { 337 | var sendPing = function () { 338 | self.sockJSConn.send(JSON.stringify({ type: 'ping' })); 339 | }; 340 | 341 | if (self.pingInterval > 0) { 342 | // Send the first ping then send a ping every pingInterval milliseconds 343 | sendPing(); 344 | self.pingTimerID = setInterval(sendPing, self.pingInterval); 345 | } 346 | } else { 347 | if (self.pingTimerID) { 348 | clearInterval(self.pingTimerID); 349 | self.pingTimerID = null; 350 | } 351 | } 352 | }; 353 | 354 | EventBus.prototype.enableReconnect = function (enable) { 355 | var self = this; 356 | 357 | self.reconnectEnabled = enable; 358 | if (!enable && self.reconnectTimerID) { 359 | clearTimeout(self.reconnectTimerID); 360 | self.reconnectTimerID = null; 361 | self.reconnectAttempts = 0; 362 | } 363 | }; 364 | 365 | if (typeof exports !== 'undefined') { 366 | if (typeof module !== 'undefined' && module.exports) { 367 | exports = module.exports = EventBus; 368 | } else { 369 | exports.EventBus = EventBus; 370 | } 371 | } else { 372 | return EventBus; 373 | } 374 | }); 375 | --------------------------------------------------------------------------------