cloudeebus/cloudeebus.js

   1 /******************************************************************************
   2  * Copyright 2012 - 2013 Intel Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *****************************************************************************/
  16
  17
  18
  19 /*****************************************************************************/
  20
  21 var dbus = { // hook object for dbus types not translated by python-json
  22                 Double: function(value, level) {
  23                         return value;
  24                 }
  25 };
  26
  27
  28
  29 /*****************************************************************************/
  30
  31 var cloudeebus = window.cloudeebus = {
  32                 version: "0.6.0",
  33                 minVersion: "0.6.0"
  34 };
  35
  36 cloudeebus.reset = function() {
  37         cloudeebus.sessionBus = null;
  38         cloudeebus.systemBus = null;
  39         cloudeebus.wampSession = null;
  40         cloudeebus.uri = null;
  41 };
  42
  43
  44 cloudeebus.log = function(msg) {
  45 };
  46
  47 cloudeebus.getError = function(error) {
  48         if (error.desc && error.uri)
  49                 return error.desc + " : " + error.uri; // Python exception (cloudeebus.py)
  50         if (error.desc)
  51                 return error.desc;
  52         if (error.uri)
  53                 return error.uri;
  54         if (error.name && error.message)
  55                 return error.name + " : " + error.message; // Javascript exception
  56         if (error.message)
  57                 return error.message;
  58         if (error.name)
  59                 return error.name;
  60         return error; // Autobahn error
  61 };
  62
  63 cloudeebus.versionCheck = function(version) {
  64         var ver = version.split(".");
  65         var min = cloudeebus.minVersion.split(".");
  66         for (var i=0; i<ver.length; i++) {
  67                 if (Number(ver[i]) > Number(min[i]))
  68                         return true;
  69                 if (Number(ver[i]) < Number(min[i]))
  70                         return false;
  71         }
  72         return true;
  73 };
  74
  75
  76 cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
  77         cloudeebus.reset();
  78         cloudeebus.uri = uri;
  79
  80         function onCloudeebusVersionCheckCB(version) {
  81                 if (cloudeebus.versionCheck(version)) {
  82                         cloudeebus.log("Connected to " + cloudeebus.uri);
  83                         if (successCB)
  84                                 successCB();
  85                 } else {
  86                         var errorMsg = "Cloudeebus server version " + version + " unsupported, need version " + cloudeebus.minVersion + " or superior";
  87                         cloudeebus.log(errorMsg);
  88                         if (errorCB)
  89                                 errorCB(errorMsg);
  90                 }
  91         }
  92
  93         function onWAMPSessionAuthErrorCB(error) {
  94                 var errorStr = cloudeebus.getError(error);
  95                 cloudeebus.log("Authentication error: " + errorStr);
  96                 if (errorCB)
  97                         errorCB(errorStr);
  98         }
  99
 100         function onWAMPSessionAuthenticatedCB(permissions) {
 101                 cloudeebus.sessionBus = new cloudeebus.BusConnection("session", cloudeebus.wampSession);
 102                 cloudeebus.systemBus = new cloudeebus.BusConnection("system", cloudeebus.wampSession);
 103                 cloudeebus.wampSession.call("getVersion").then(onCloudeebusVersionCheckCB, errorCB);
 104         }
 105
 106         function onWAMPSessionChallengedCB(challenge) {
 107                 var signature = cloudeebus.wampSession.authsign(challenge, manifest.key);
 108                 cloudeebus.wampSession.auth(signature).then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 109         }
 110
 111         function onWAMPSessionConnectedCB(session) {
 112                 cloudeebus.wampSession = session;
 113                 if (manifest)
 114                         cloudeebus.wampSession.authreq(
 115                                         manifest.name,
 116                                         {permissions: manifest.permissions,
 117                                                  services: manifest.services}
 118                                 ).then(onWAMPSessionChallengedCB, onWAMPSessionAuthErrorCB);
 119                 else
 120                         cloudeebus.wampSession.authreq().then(function() {
 121                                 cloudeebus.wampSession.auth().then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 122                                 }, onWAMPSessionAuthErrorCB);
 123         }
 124
 125         function onWAMPSessionErrorCB(code, reason) {
 126                 if (code == ab.CONNECTION_UNSUPPORTED) {
 127                         cloudeebus.log("Browser is not supported");
 128                 }
 129                 else {
 130                         cloudeebus.log("Failed to open session, code = " + code + ", reason = " + reason);
 131                 }
 132                 if (errorCB)
 133                         errorCB(reason);
 134         }
 135
 136         return ab.connect(cloudeebus.uri, onWAMPSessionConnectedCB, onWAMPSessionErrorCB);
 137 };
 138
 139
 140 cloudeebus.SessionBus = function() {
 141         return cloudeebus.sessionBus;
 142 };
 143
 144
 145 cloudeebus.SystemBus = function() {
 146         return cloudeebus.systemBus;
 147 };
 148
 149
 150
 151 /*****************************************************************************/
 152
 153 cloudeebus.BusConnection = function(name, session) {
 154         this.name = name;
 155         this.wampSession = session;
 156         return this;
 157 };
 158
 159
 160 cloudeebus.BusConnection.prototype.getObject = function(busName, objectPath, introspectCB, errorCB) {
 161         var proxy = new cloudeebus.ProxyObject(this.wampSession, this, busName, objectPath);
 162         if (introspectCB)
 163                 proxy._introspect(introspectCB, errorCB);
 164         return proxy;
 165 };
 166
 167
 168 cloudeebus.BusConnection.prototype.addService = function(serviceName) {
 169         var self = this;
 170
 171         var promise = new cloudeebus.Promise(function (resolver) {
 172                 var cloudeebusService = new cloudeebus.Service(self.wampSession, self, serviceName);
 173
 174                 function ServiceAddedSuccessCB(serviceName) {
 175                         cloudeebusService.isCreated = true;
 176                         resolver.fulfill(cloudeebusService, true);
 177                 }
 178
 179                 function ServiceAddedErrorCB(error) {
 180                         var errorStr = cloudeebus.getError(error);
 181                         cloudeebus.log("Error adding service method: " + self.name + ", error: " + errorStr);
 182                         resolver.reject(errorStr, true);
 183                 }
 184
 185                 var arglist = [
 186                     self.name,
 187                     serviceName
 188                     ];
 189
 190                 // call dbusSend with bus type, destination, object, message and arguments
 191                 self.wampSession.call("serviceAdd", arglist).then(ServiceAddedSuccessCB, ServiceAddedErrorCB);
 192         });
 193
 194         return promise;
 195 };
 196
 197
 198
 199 /******************************************************************************
 200  * Copyright 2012 - 2013 Intel Corporation.
 201  *
 202  * Licensed under the Apache License, Version 2.0 (the "License");
 203  * you may not use this file except in compliance with the License.
 204  * You may obtain a copy of the License at
 205  *
 206  * http://www.apache.org/licenses/LICENSE-2.0
 207  *
 208  * Unless required by applicable law or agreed to in writing, software
 209  * distributed under the License is distributed on an "AS IS" BASIS,
 210  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 211  * See the License for the specific language governing permissions and
 212  * limitations under the License.
 213  *****************************************************************************/
 214
 215
 216
 217 /*****************************************************************************/
 218
 219 cloudeebus.Agent = function(objectPath, handler, xml) {
 220         this.xml = xml;
 221         this.objectPath = objectPath;
 222         this.handler = handler;
 223         return this;
 224 };
 225
 226
 227 cloudeebus.Service = function(session, busConnection, name) {
 228         this.wampSession = session;
 229         this.busConnection = busConnection;
 230         this.name = name;
 231         this.agents = [];
 232         this.isCreated = false;
 233         return this;
 234 };
 235
 236
 237 cloudeebus.Service.prototype.remove = function() {
 238         var self = this;
 239
 240         var promise = new cloudeebus.Promise(function (resolver) {
 241                 function ServiceRemovedSuccessCB(serviceName) {
 242                         resolver.fulfill(serviceName, true);
 243                 }
 244
 245                 function ServiceRemovedErrorCB(error) {
 246                         var errorStr = cloudeebus.getError(error);
 247                         resolver.reject(errorStr, true);
 248                 }
 249
 250                 var arglist = [
 251                     self.name
 252                     ];
 253
 254                 // call dbusSend with bus type, destination, object, message and arguments
 255                 self.wampSession.call("serviceRelease", arglist).then(ServiceRemovedSuccessCB, ServiceRemovedErrorCB);
 256         });
 257
 258         return promise;
 259 };
 260
 261
 262 cloudeebus.Service.prototype._searchMethod = function(ifName, method, objectJS) {
 263
 264         var funcToCall = null;
 265
 266         // Check if 'objectJS' has a member 'interfaceProxies' with an interface named 'ifName'
 267         // and a method named 'method'
 268         if (objectJS.interfaceProxies && objectJS.interfaceProxies[ifName] &&
 269                 objectJS.interfaceProxies[ifName][method]) {
 270                 funcToCall = objectJS.interfaceProxies[ifName][method];
 271         } else {
 272                 // retrieve the method directly from 'root' of objectJs
 273                 funcToCall = objectJS[method];
 274         }
 275
 276         return funcToCall;
 277 };
 278
 279
 280 cloudeebus.Service.prototype._addMethod = function(ifName, method, agent) {
 281
 282         var service = this;
 283         var methodId = this.name + "#" + agent.objectPath + "#" + ifName + "#" + method;
 284         var funcToCall = this._searchMethod(ifName, method, agent.handler);
 285
 286         if (funcToCall == null)
 287                 cloudeebus.log("Method " + method + " doesn't exist in Javascript object");
 288         else {
 289                 agent.handler.wrapperFunc[method] = function() {
 290                         var result;
 291                         var methodId = arguments[0];
 292                         var callDict = {};
 293                         // affectation of callDict in eval, otherwise dictionary(='{}') interpreted as block of code by eval
 294                         eval("callDict = " + arguments[1]);
 295                         try {
 296                                 result = funcToCall.apply(agent.handler, callDict.args);
 297                                 service._returnMethod(methodId, callDict.callIndex, true, result);
 298                         }
 299                         catch (e) {
 300                                 var errorStr = cloudeebus.getError(e);
 301                                 cloudeebus.log("Method " + ifName + "." + method + " call on " + agent.objectPath + " exception: " + errorStr);
 302                                 service._returnMethod(methodId, callDict.callIndex, false, errorStr);
 303                         }
 304                 };
 305                 agent.handler.methodId[agent.objectPath].push(methodId);
 306                 this.wampSession.subscribe(methodId, agent.handler.wrapperFunc[method]);
 307         }
 308 };
 309
 310
 311 cloudeebus.Service.prototype._addSignal = function(ifName, signal, agent) {
 312         var service = this;
 313
 314         if (agent.handler[signal])
 315                 cloudeebus.log("Signal '" + signal + "' emitter already implemented");
 316         else {
 317                 agent.handler[signal] = function() {
 318                         var args = [];
 319                         for (var i=0; i < arguments.length; i++ )
 320                                 args.push(arguments[i]);
 321                         service._emitSignal(agent.objectPath, signal, args);
 322                 };
 323         }
 324 };
 325
 326
 327 cloudeebus.Service.prototype._createWrapper = function(agent) {
 328         var self = this;
 329         var parser = new DOMParser();
 330         var xmlDoc = parser.parseFromString(agent.xml, "text/xml");
 331         var ifXml = xmlDoc.getElementsByTagName("interface");
 332         agent.handler.wrapperFunc = {};
 333         agent.handler.methodId = {};
 334         agent.handler.methodId[agent.objectPath] = [];
 335         for (var i=0; i < ifXml.length; i++) {
 336                 var ifName = ifXml[i].attributes.getNamedItem("name").value;
 337                 var ifChild = ifXml[i].firstChild;
 338                 while (ifChild) {
 339                         if (ifChild.nodeName == "method") {
 340                                 var metName = ifChild.attributes.getNamedItem("name").value;
 341                                 self._addMethod(ifName, metName, agent);
 342                         }
 343                         if (ifChild.nodeName == "signal") {
 344                                 var metName = ifChild.attributes.getNamedItem("name").value;
 345                                 self._addSignal(ifName, metName, agent);
 346                         }
 347                         ifChild = ifChild.nextSibling;
 348                 }
 349         }
 350 };
 351
 352
 353 cloudeebus.Service.prototype.addAgent = function(agent) {
 354         var self = this;
 355
 356         var promise = new cloudeebus.Promise(function (resolver) {
 357                 function ServiceAddAgentSuccessCB(objPath) {
 358                         self.agents.push(agent);
 359                         try {
 360                                 self._createWrapper(agent);
 361                         }
 362                         catch (e) {
 363                                 var errorStr = cloudeebus.getError(e);
 364                                 cloudeebus.log("Exception creating agent wrapper " + agent.objectPath + " : " + errorStr);
 365                                 resolver.reject(errorStr, true);
 366                                 return;
 367                         }
 368                         resolver.fulfill(objPath, true);
 369                 }
 370
 371                 function ServiceAddAgenterrorCB(error) {
 372                         var errorStr = cloudeebus.getError(error);
 373                         cloudeebus.log("Error adding agent : " + agent.objectPath + ", error: " + errorStr);
 374                         resolver.reject(errorStr, true);
 375                 }
 376
 377                 var arglist = [
 378                     self.name,
 379                     agent.objectPath,
 380                     agent.xml
 381                     ];
 382
 383                 // call dbusSend with bus type, destination, object, message and arguments
 384                 self.wampSession.call("serviceAddAgent", arglist).then(ServiceAddAgentSuccessCB, ServiceAddAgenterrorCB);
 385         });
 386
 387         return promise;
 388 };
 389
 390
 391 cloudeebus.Service.prototype._deleteWrapper = function(agent) {
 392         var objJs = agent.handler;
 393         if (objJs.methodId[agent.objectPath]) {
 394                 while (objJs.methodId[agent.objectPath].length) {
 395                         try {
 396                                 this.wampSession.unsubscribe( objJs.methodId[agent.objectPath].pop() );
 397                         }
 398                         catch (e) {
 399                                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 400                         }
 401                 }
 402                 objJs.methodId[agent.objectPath] = null;
 403         }
 404 };
 405
 406
 407 cloudeebus.Service.prototype.removeAgent = function(rmAgent) {
 408         var self = this;
 409
 410         var promise = new cloudeebus.Promise(function (resolver) {
 411                 function ServiceRemoveAgentSuccessCB(objectPath) {
 412                         // Searching agent in list
 413                         for (var idx in self.agents)
 414                                 if (self.agents[idx].objectPath == objectPath) {
 415                                         agent = self.agents[idx];
 416                                         break;
 417                                 }
 418
 419                         self.agents.splice(idx, 1);
 420                         self._deleteWrapper(agent);
 421                         resolver.fulfill(agent, true);
 422                 }
 423
 424                 function ServiceRemoveAgentErrorCB(error) {
 425                         var errorStr = cloudeebus.getError(error);
 426                         cloudeebus.log("Error removing agent : " + rmAgent.objectPath + ", error: " + errorStr);
 427                         resolver.reject(errorStr, true);
 428                 }
 429
 430                 var arglist = [
 431                     rmAgent.objectPath
 432                     ];
 433
 434                 // call dbusSend with bus type, destination, object, message and arguments
 435                 self.wampSession.call("serviceDelAgent", arglist).then(ServiceRemoveAgentSuccessCB, ServiceRemoveAgentErrorCB);
 436         });
 437
 438         return promise;
 439 };
 440
 441
 442 cloudeebus.Service.prototype._returnMethod = function(methodId, callIndex, success, result, successCB, errorCB) {
 443         var arglist = [
 444             methodId,
 445             callIndex,
 446             success,
 447             result
 448             ];
 449
 450         this.wampSession.call("returnMethod", arglist).then(successCB, errorCB);
 451 };
 452
 453
 454 cloudeebus.Service.prototype._emitSignal = function(objectPath, signalName, args, successCB, errorCB) {
 455         var arglist = [
 456             objectPath,
 457             signalName,
 458             JSON.stringify(args)
 459             ];
 460
 461         this.wampSession.call("emitSignal", arglist).then(successCB, errorCB);
 462 };
 463
 464
 465
 466 /******************************************************************************
 467  * Copyright 2012 - 2013 Intel Corporation.
 468  *
 469  * Licensed under the Apache License, Version 2.0 (the "License");
 470  * you may not use this file except in compliance with the License.
 471  * You may obtain a copy of the License at
 472  *
 473  * http://www.apache.org/licenses/LICENSE-2.0
 474  *
 475  * Unless required by applicable law or agreed to in writing, software
 476  * distributed under the License is distributed on an "AS IS" BASIS,
 477  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 478  * See the License for the specific language governing permissions and
 479  * limitations under the License.
 480  *****************************************************************************/
 481
 482
 483
 484 /*****************************************************************************/
 485
 486 function _processWrappers(wrappers, value) {
 487         for (var i=0; i<wrappers.length; i++)
 488                 wrappers[i](value);
 489 }
 490
 491
 492 function _processWrappersAsync(wrappers, value) {
 493         var taskid = -1;
 494         function processAsyncOnce() {
 495                 _processWrappers(wrappers, value);
 496                 clearInterval(taskid);
 497         }
 498         taskid = setInterval(processAsyncOnce, 200);
 499 }
 500
 501
 502
 503 /*****************************************************************************/
 504
 505 cloudeebus.PromiseResolver = function(promise) {
 506         this.promise = promise;
 507         this.resolved = null;
 508     return this;
 509 };
 510
 511
 512 cloudeebus.PromiseResolver.prototype.resolve = function(value, sync) {
 513         if (this.resolved)
 514                 return;
 515
 516         var then = (value && value.then && value.then.apply) ? value.then : null;
 517         if (then) {
 518                 var self = this;
 519                 var fulfillCallback = function(arg) {
 520                         self.resolve(arg, true);
 521                 };
 522                 var rejectCallback = function(arg) {
 523                         self.reject(arg, true);
 524                 };
 525                 try {
 526                         then.apply(value, [fulfillCallback, rejectCallback]);
 527                 }
 528                 catch (e) {
 529                         this.reject(cloudeebus.getError(e), true);
 530                 }
 531         }
 532
 533         this.fulfill(value, sync);
 534 };
 535
 536
 537 cloudeebus.PromiseResolver.prototype.fulfill = function(value, sync) {
 538         if (this.resolved)
 539                 return;
 540
 541         var promise = this.promise;
 542         promise.state = "fulfilled";
 543         promise.result = value;
 544
 545         this.resolved = true;
 546         if (sync)
 547                 _processWrappers(promise._fulfillWrappers, value);
 548         else
 549                 _processWrappersAsync(promise._fulfillWrappers, value);
 550 };
 551
 552
 553 cloudeebus.PromiseResolver.prototype.reject = function(value, sync) {
 554         if (this.resolved)
 555                 return;
 556
 557         var promise = this.promise;
 558         promise.state = "rejected";
 559         promise.result = value;
 560
 561         this.resolved = true;
 562         if (sync)
 563                 _processWrappers(promise._rejectWrappers, value);
 564         else
 565                 _processWrappersAsync(promise._rejectWrappers, value);
 566 };
 567
 568
 569
 570 /*****************************************************************************/
 571
 572 cloudeebus.Promise = function(init) {
 573         this.state = "pending";
 574         this.result = null;
 575         this._fulfillWrappers = [];
 576         this._rejectWrappers = [];
 577         this.resolver = new cloudeebus.PromiseResolver(this);
 578         if (init) {
 579                 try {
 580                         init.apply(this, [this.resolver]);
 581                 }
 582                 catch (e) {
 583                         this.resolver.reject(cloudeebus.getError(e), true);
 584                 }
 585         }
 586     return this;
 587 };
 588
 589
 590 cloudeebus.Promise.prototype.appendWrappers = function(fulfillWrapper, rejectWrapper) {
 591         if (fulfillWrapper)
 592                 this._fulfillWrappers.push(fulfillWrapper);
 593         if (rejectWrapper)
 594                 this._rejectWrappers.push(rejectWrapper);
 595         if (this.state == "fulfilled")
 596                 _processWrappersAsync(this._fulfillWrappers, this.result);
 597         if (this.state == "rejected")
 598                 _processWrappersAsync(this._rejectWrappers, this.result);
 599 };
 600
 601
 602 cloudeebus.Promise.prototype.then = function(fulfillCB, rejectCB) {
 603         var promise = new cloudeebus.Promise();
 604         var resolver = promise.resolver;
 605         var fulfillWrapper, rejectWrapper;
 606
 607         if (fulfillCB)
 608                 fulfillWrapper = function(arg) {
 609                         try {
 610                                 var value = fulfillCB.apply(promise, [arg]);
 611                                 resolver.resolve(value, true);
 612                         }
 613                         catch (e) {
 614                                 resolver.reject(cloudeebus.getError(e), true);
 615                         }
 616                 };
 617         else
 618                 fulfillWrapper = function(arg) {
 619                         resolver.fulfill(arg, true);
 620                 };
 621
 622         if (rejectCB)
 623                 rejectWrapper = function(arg) {
 624                         try {
 625                                 var value = rejectCB.apply(promise, [arg]);
 626                                 resolver.resolve(value, true);
 627                         }
 628                         catch (e) {
 629                                 resolver.reject(cloudeebus.getError(e), true);
 630                         }
 631                 };
 632         else
 633                 rejectWrapper = function(arg) {
 634                         resolver.reject(arg, true);
 635                 };
 636
 637         this.appendWrappers(fulfillWrapper,rejectWrapper);
 638         return promise;
 639 };
 640
 641
 642 cloudeebus.Promise.prototype["catch"] = function(rejectCB) {
 643         return this.then(undefined,rejectCB);
 644 };
 645
 646
 647 cloudeebus.Promise.prototype.done = function(fulfillCB, rejectCB) {
 648         this.appendWrappers(fulfillCB,rejectCB);
 649 };
 650
 651
 652 cloudeebus.Promise.resolve = function(value) {
 653         var promise = new cloudeebus.Promise();
 654         promise.resolver.resolve(value);
 655         return promise;
 656 };
 657
 658
 659 cloudeebus.Promise.fulfill = function(value) {
 660         var promise = new cloudeebus.Promise();
 661         promise.resolver.fulfill(value);
 662         return promise;
 663 };
 664
 665
 666 cloudeebus.Promise.reject = function(value) {
 667         var promise = new cloudeebus.Promise();
 668         promise.resolver.reject(value);
 669         return promise;
 670 };
 671
 672
 673 cloudeebus.Promise.any = function() {
 674         var promise = new cloudeebus.Promise();
 675         var resolver = promise.resolver;
 676         var fulfillCallback = function(arg) {
 677                 resolver.resolve(arg, true);
 678         };
 679         var rejectCallback = function(arg) {
 680                 resolver.reject(arg, true);
 681         };
 682         if (arguments.length == 0)
 683                 resolver.resolve(undefined, true);
 684         else
 685                 for (i in arguments)
 686                         cloudeebus.Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 687         return promise;
 688 };
 689
 690
 691 cloudeebus.Promise.every = function() {
 692         var promise = new cloudeebus.Promise();
 693         var resolver = promise.resolver;
 694         var index = 0;
 695         var countdown = arguments.length;
 696         var args = new Array(countdown);
 697         var rejectCallback = function(arg) {
 698                 resolver.reject(arg, true);
 699         };
 700         if (arguments.length == 0)
 701                 resolver.resolve(undefined, true);
 702         else
 703                 for (i in arguments) {
 704                         var fulfillCallback = function(arg) {
 705                                 args[index] = arg;
 706                                 countdown--;
 707                                 if (countdown == 0)
 708                                         resolver.resolve(args, true);
 709                         };
 710                         index++;
 711                         cloudeebus.Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 712                 }
 713
 714         return promise;
 715 };
 716
 717
 718 cloudeebus.Promise.some = function() {
 719         var promise = new cloudeebus.Promise();
 720         var resolver = promise.resolver;
 721         var index = 0;
 722         var countdown = arguments.length;
 723         var args = new Array(countdown);
 724         var fulfillCallback = function(arg) {
 725                 resolver.resolve(arg, true);
 726         };
 727         if (arguments.length == 0)
 728                 resolver.resolve(undefined, true);
 729         else
 730                 for (i in arguments) {
 731                         var rejectCallback = function(arg) {
 732                                 args[index] = arg;
 733                                 countdown--;
 734                                 if (countdown == 0)
 735                                         resolver.reject(args, true);
 736                         };
 737                         index++;
 738                         cloudeebus.Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 739                 }
 740
 741         return promise;
 742 };
 743
 744
 745
 746 /******************************************************************************
 747  * Copyright 2012 - 2013 Intel Corporation.
 748  *
 749  * Licensed under the Apache License, Version 2.0 (the "License");
 750  * you may not use this file except in compliance with the License.
 751  * You may obtain a copy of the License at
 752  *
 753  * http://www.apache.org/licenses/LICENSE-2.0
 754  *
 755  * Unless required by applicable law or agreed to in writing, software
 756  * distributed under the License is distributed on an "AS IS" BASIS,
 757  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 758  * See the License for the specific language governing permissions and
 759  * limitations under the License.
 760  *****************************************************************************/
 761
 762
 763
 764 /*****************************************************************************/
 765
 766 cloudeebus.ProxyObject = function(session, busConnection, busName, objectPath) {
 767         this.wampSession = session;
 768         this.busConnection = busConnection;
 769         this.busName = busName;
 770         this.objectPath = objectPath;
 771         this.interfaceProxies = {};
 772         this.childNodeNames = [];
 773         return this;
 774 };
 775
 776
 777 cloudeebus.ProxyObject.prototype.getInterface = function(ifName) {
 778         return this.interfaceProxies[ifName];
 779 };
 780
 781
 782 cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 783
 784         var self = this;
 785
 786         function getAllPropertiesSuccessCB(props) {
 787                 var ifProxy = self.interfaceProxies[self.propInterfaces[self.propInterfaces.length-1]];
 788                 for (var prop in props)
 789                         ifProxy[prop] = self[prop] = props[prop];
 790                 getAllPropertiesNextInterfaceCB();
 791         }
 792
 793         function getAllPropertiesNextInterfaceCB() {
 794                 self.propInterfaces.pop();
 795                 if (self.propInterfaces.length > 0)
 796                         self.callMethod("org.freedesktop.DBus.Properties",
 797                                 "GetAll",
 798                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 799                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 800                 else {
 801                         self.propInterfaces = null;
 802                         if (successCB)
 803                                 successCB(self);
 804                 }
 805         }
 806
 807         function introspectSuccessCB(str) {
 808                 var parser = new DOMParser();
 809                 var xmlDoc = parser.parseFromString(str, "text/xml");
 810                 var nodes = xmlDoc.getElementsByTagName("node");
 811                 // first node is the parent/head node
 812                 for(var i=1; i < nodes.length; i++)
 813                         self.childNodeNames.push(nodes[i].getAttribute("name"));
 814                 var interfaces = xmlDoc.getElementsByTagName("interface");
 815                 self.propInterfaces = [];
 816                 var supportDBusProperties = false;
 817                 for (var i=0; i < interfaces.length; i++) {
 818                         var ifName = interfaces[i].attributes.getNamedItem("name").value;
 819                         self.interfaceProxies[ifName] = new cloudeebus.ProxyObject(self.wampSession, self.busConnection, self.busName, self.objectPath);
 820                         if (ifName == "org.freedesktop.DBus.Properties")
 821                                 supportDBusProperties = true;
 822                         var hasProperties = false;
 823                         var ifChild = interfaces[i].firstChild;
 824                         while (ifChild) {
 825                                 if (ifChild.nodeName == "method") {
 826                                         var nArgs = 0;
 827                                         var signature = "";
 828                                         var metChild = ifChild.firstChild;
 829                                         while (metChild) {
 830                                                 if (metChild.nodeName == "arg" &&
 831                                                         metChild.attributes.getNamedItem("direction").value == "in") {
 832                                                                 signature += metChild.attributes.getNamedItem("type").value;
 833                                                                 nArgs++;
 834                                                 }
 835                                                 metChild = metChild.nextSibling;
 836                                         }
 837                                         var metName = ifChild.attributes.getNamedItem("name").value;
 838                                         if (!self[metName])
 839                                                 self._addMethod(ifName, metName, nArgs, signature);
 840                                         self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs, signature);
 841                                 }
 842                                 else if (ifChild.nodeName == "property") {
 843                                         if (!hasProperties)
 844                                                 self.propInterfaces.push(ifName);
 845                                         hasProperties = true;
 846                                 }
 847                                 ifChild = ifChild.nextSibling;
 848                         }
 849                 }
 850                 if (supportDBusProperties && self.propInterfaces.length > 0) {
 851                         self.callMethod("org.freedesktop.DBus.Properties",
 852                                 "GetAll",
 853                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 854                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 855                 }
 856                 else {
 857                         self.propInterfaces = null;
 858                         if (successCB)
 859                                 successCB(self);
 860                 }
 861         }
 862
 863         // call Introspect on self
 864         self.callMethod("org.freedesktop.DBus.Introspectable", "Introspect", []).then(introspectSuccessCB, errorCB);
 865 };
 866
 867
 868 cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs, signature) {
 869
 870         var self = this;
 871
 872         self[method] = function() {
 873                 var args = [];
 874                 for (var i=0; i < nArgs; i++ )
 875                         args.push(arguments[i]);
 876                 return self.callMethod(ifName, method, args, signature);
 877         };
 878 };
 879
 880
 881 cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, signature) {
 882
 883         var self = this;
 884
 885         var promise = new cloudeebus.Promise(function (resolver) {
 886                 function callMethodSuccessCB(str) {
 887                         try { // calling dbus hook object function for un-translated types
 888                                 var result = eval(str);
 889                                 resolver.fulfill(result[0], true);
 890                         }
 891                         catch (e) {
 892                                 var errorStr = cloudeebus.getError(e);
 893                                 cloudeebus.log("Method callback exception: " + errorStr);
 894                                 resolver.reject(errorStr, true);
 895                         }
 896                 }
 897
 898                 function callMethodErrorCB(error) {
 899                         var errorStr = cloudeebus.getError(error);
 900                         cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + errorStr);
 901                         resolver.reject(errorStr, true);
 902                 }
 903
 904                 var arglist = [
 905                         self.busConnection.name,
 906                         self.busName,
 907                         self.objectPath,
 908                         ifName,
 909                         method,
 910                         JSON.stringify(args)
 911                 ];
 912
 913                 // call dbusSend with bus type, destination, object, message and arguments
 914                 self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
 915         });
 916
 917         return promise;
 918 };
 919
 920
 921 cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, handlerCB, errorCB) {
 922
 923         var self = this;
 924
 925         function signalHandler(id, data) {
 926                 if (handlerCB) {
 927                         try { // calling dbus hook object function for un-translated types
 928                                 handlerCB.apply(self, eval(data));
 929                         }
 930                         catch (e) {
 931                                 var errorStr = cloudeebus.getError(e);
 932                                 cloudeebus.log("Signal handler exception: " + errorStr);
 933                                 if (errorCB)
 934                                         errorCB(errorStr);
 935                         }
 936                 }
 937         }
 938
 939         function connectToSignalSuccessCB(str) {
 940                 try {
 941                         self.wampSession.subscribe(str, signalHandler);
 942                 }
 943                 catch (e) {
 944                         cloudeebus.log("Subscribe error: " + cloudeebus.getError(e));
 945                 }
 946         }
 947
 948         function connectToSignalErrorCB(error) {
 949                 var errorStr = cloudeebus.getError(error);
 950                 cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + errorStr);
 951                 if (errorCB)
 952                         errorCB(errorStr);
 953         }
 954
 955         var arglist = [
 956                 self.busConnection.name,
 957                 self.busName,
 958                 self.objectPath,
 959                 ifName,
 960                 signal
 961         ];
 962
 963         // call dbusSend with bus type, destination, object, message and arguments
 964         self.wampSession.call("dbusRegister", arglist).then(connectToSignalSuccessCB, connectToSignalErrorCB);
 965 };
 966
 967
 968 cloudeebus.ProxyObject.prototype.disconnectSignal = function(ifName, signal) {
 969         try {
 970                 this.wampSession.unsubscribe(this.busConnection.name + "#" + this.busName + "#" + this.objectPath + "#" + ifName + "#" + signal);
 971         }
 972         catch (e) {
 973                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 974         }
 975 };