cloudeebus/cloudeebus.js

   1 /******************************************************************************
   2  * Copyright 2012 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: "0.5.99",
  33                 minVersion: "0.3.2"
  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)
  49                 return error.desc;
  50         if (error.name && error.message)
  51                 return error.name + " : " + error.message;
  52         if (error.message)
  53                 return error.message;
  54         if (error.name)
  55                 return error.name;
  56         return error;
  57 };
  58
  59 cloudeebus.versionCheck = function(version) {
  60         var ver = version.split(".");
  61         var min = cloudeebus.minVersion.split(".");
  62         for (var i=0; i<ver.length; i++) {
  63                 if (Number(ver[i]) > Number(min[i]))
  64                         return true;
  65                 if (Number(ver[i]) < Number(min[i]))
  66                         return false;
  67         }
  68         return true;
  69 };
  70
  71
  72 cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
  73         cloudeebus.reset();
  74         cloudeebus.uri = uri;
  75
  76         function onCloudeebusVersionCheckCB(version) {
  77                 if (cloudeebus.versionCheck(version)) {
  78                         cloudeebus.log("Connected to " + cloudeebus.uri);
  79                         if (successCB)
  80                                 successCB();
  81                 } else {
  82                         var errorMsg = "Cloudeebus server version " + version + " unsupported, need version " + cloudeebus.minVersion + " or superior";
  83                         cloudeebus.log(errorMsg);
  84                         if (errorCB)
  85                                 errorCB(errorMsg);
  86                 }
  87         }
  88
  89         function onWAMPSessionAuthErrorCB(error) {
  90                 var errorStr = cloudeebus.getError(error);
  91                 cloudeebus.log("Authentication error: " + errorStr);
  92                 if (errorCB)
  93                         errorCB(errorStr);
  94         }
  95
  96         function onWAMPSessionAuthenticatedCB(permissions) {
  97                 cloudeebus.sessionBus = new cloudeebus.BusConnection("session", cloudeebus.wampSession);
  98                 cloudeebus.systemBus = new cloudeebus.BusConnection("system", cloudeebus.wampSession);
  99                 cloudeebus.wampSession.call("getVersion").then(onCloudeebusVersionCheckCB, errorCB);
 100         }
 101
 102         function onWAMPSessionChallengedCB(challenge) {
 103                 var signature = cloudeebus.wampSession.authsign(challenge, manifest.key);
 104                 cloudeebus.wampSession.auth(signature).then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 105         }
 106
 107         function onWAMPSessionConnectedCB(session) {
 108                 cloudeebus.wampSession = session;
 109                 if (manifest) {
 110                         cloudeebus.wampSession.authreq(
 111                                         manifest.name,
 112                                         {permissions: manifest.permissions,
 113                                                  services: manifest.services}
 114                                 ).then(onWAMPSessionChallengedCB, onWAMPSessionAuthErrorCB);
 115                 }
 116                 else
 117                         cloudeebus.wampSession.authreq().then(function() {
 118                                 cloudeebus.wampSession.auth().then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 119                                 }, onWAMPSessionAuthErrorCB);
 120         }
 121
 122         function onWAMPSessionErrorCB(code, reason) {
 123                 if (code == ab.CONNECTION_UNSUPPORTED) {
 124                         cloudeebus.log("Browser is not supported");
 125                 }
 126                 else {
 127                         cloudeebus.log("Failed to open session, code = " + code + ", reason = " + reason);
 128                 }
 129                 if (errorCB)
 130                         errorCB(reason);
 131         }
 132
 133         return ab.connect(cloudeebus.uri, onWAMPSessionConnectedCB, onWAMPSessionErrorCB);
 134 };
 135
 136
 137 cloudeebus.SessionBus = function() {
 138         return cloudeebus.sessionBus;
 139 };
 140
 141
 142 cloudeebus.SystemBus = function() {
 143         return cloudeebus.systemBus;
 144 };
 145
 146
 147
 148 /*****************************************************************************/
 149
 150 cloudeebus.BusConnection = function(name, session) {
 151         this.name = name;
 152         this.wampSession = session;
 153         return this;
 154 };
 155
 156
 157 cloudeebus.BusConnection.prototype.getObject = function(busName, objectPath, introspectCB, errorCB) {
 158         var proxy = new cloudeebus.ProxyObject(this.wampSession, this, busName, objectPath);
 159         if (introspectCB)
 160                 proxy._introspect(introspectCB, errorCB);
 161         return proxy;
 162 };
 163
 164
 165 cloudeebus.BusConnection.prototype.addService = function(serviceName) {
 166         var self = this;
 167
 168         if (!serviceName)
 169                 serviceName = "";
 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                         try { // calling dbus hook object function for un-translated types
 176                                 cloudeebusService.isCreated = true;
 177                                 resolver.fulfill(cloudeebusService, true);
 178                         }
 179                         catch (e) {
 180                                 var errorStr = cloudeebus.getError(e);
 181                                 cloudeebus.log("Method callback exception: " + errorStr);
 182                                 resolver.reject(errorStr, true);
 183                         }
 184                 }
 185
 186                 function ServiceAddedErrorCB(error) {
 187                         var errorStr = cloudeebus.getError(error);
 188                         cloudeebus.log("Error adding service method: " + self.name + ", error: " + errorStr);
 189                         resolver.reject(errorStr, true);
 190                 }
 191
 192                 var arglist = [
 193                     self.name,
 194                     serviceName
 195                     ];
 196
 197                 // call dbusSend with bus type, destination, object, message and arguments
 198                 self.wampSession.call("serviceAdd", arglist).then(ServiceAddedSuccessCB, ServiceAddedErrorCB);
 199         });
 200
 201         return promise;
 202 };
 203
 204
 205
 206 /*****************************************************************************/
 207 //Generic definition for an agent. An agent needs :
 208 //srvDbusName : the DBus parent service
 209 //objPath : a DBus path to access it
 210 //jsHdl : a Javascript handler to process methods,
 211 //xml : the xml which describe interface/methods/signals...
 212 cloudeebus.Agent = function(srvDbusName, objPath, jsHdl, xml) {
 213         this.srvName = srvDbusName;
 214         this.registered = false;
 215         this.xml = xml;
 216         this.objectPath = objPath;
 217         this.jsHdl = jsHdl;
 218         return this;
 219 };
 220
 221
 222 cloudeebus.Service = function(session, busConnection, name) {
 223         this.wampSession = session;
 224         this.busConnection = busConnection;
 225         this.name = name;
 226         this.agents = [];
 227         this.isCreated = false;
 228         return this;
 229 };
 230
 231
 232 cloudeebus.Service.prototype.remove = function() {
 233         var self = this;
 234
 235         var promise = new cloudeebus.Promise(function (resolver) {
 236                 function ServiceRemovedSuccessCB(serviceName) {
 237                         try {
 238                                 resolver.fulfill(serviceName, true);
 239                         }
 240                         catch (e) {
 241                                 var errorStr = cloudeebus.getError(e);
 242                                 cloudeebus.log("Method callback exception: " + errorStr);
 243                                 resolver.reject(errorStr, true);
 244                         }
 245                 }
 246
 247                 function ServiceRemovedErrorCB(error) {
 248                         var errorStr = cloudeebus.getError(error);
 249                         cloudeebus.log("Error removing service : " + self.name + ", error: " + errorStr);
 250                         self.promise.resolver.reject(errorStr, true);
 251                 }
 252
 253                 for (var idx in self.agents) {
 254                         if (self.agents[idx]) {
 255                                 self.removeAgent(self.agents[idx]);
 256                         }
 257                 }
 258
 259                 var arglist = [
 260                     self.name
 261                     ];
 262
 263                 // call dbusSend with bus type, destination, object, message and arguments
 264                 self.wampSession.call("serviceRelease", arglist).then(ServiceRemovedSuccessCB, ServiceRemovedErrorCB);
 265         });
 266
 267         return promise;
 268 };
 269
 270
 271 cloudeebus.Service.prototype._searchMethod = function(ifName, method, objectJS) {
 272
 273         var funcToCall = null;
 274
 275         // Check if 'objectJS' has a member 'interfaceProxies' with an interface named 'ifName'
 276         // and a method named 'method'
 277         if (objectJS.interfaceProxies && objectJS.interfaceProxies[ifName] &&
 278                 objectJS.interfaceProxies[ifName][method]) {
 279                 funcToCall = objectJS.interfaceProxies[ifName][method];
 280         } else {
 281                 // retrieve the method directly from 'root' of objectJs
 282                 funcToCall = objectJS[method];
 283         }
 284
 285         return funcToCall;
 286 };
 287
 288
 289 cloudeebus.Service.prototype._addMethod = function(ifName, method, agent) {
 290
 291         var service = this;
 292         var methodId = this.name + "#" + agent.objectPath + "#" + ifName + "#" + method;
 293         var funcToCall = this._searchMethod(ifName, method, agent.jsHdl);
 294
 295         if (funcToCall == null)
 296                 cloudeebus.log("Method " + method + " doesn't exist in Javascript object");
 297         else {
 298                 agent.jsHdl.wrapperFunc[method] = function() {
 299                         var result;
 300                         var methodId = arguments[0];
 301                         var callDict = {};
 302                         // affectation of callDict in eval, otherwise dictionary(='{}') interpreted as block of code by eval
 303                         eval("callDict = " + arguments[1]);
 304                         try {
 305                                 result = funcToCall.apply(agent.jsHdl, callDict.args);
 306                                 service._returnMethod(methodId, callDict.callIndex, true, result);
 307                         }
 308                         catch (e) {
 309                                 var errorStr = cloudeebus.getError(e);
 310                                 cloudeebus.log("Method " + ifName + "." + method + " call on " + agent.objectPath + " exception: " + errorStr);
 311                                 service._returnMethod(methodId, callDict.callIndex, false, errorStr);
 312                         }
 313                 };
 314                 agent.jsHdl.methodId[agent.objectPath].push(methodId);
 315                 this.wampSession.subscribe(methodId, agent.jsHdl.wrapperFunc[method]);
 316         }
 317 };
 318
 319
 320 cloudeebus.Service.prototype._addSignal = function(ifName, signal, agent) {
 321         var service = this;
 322         var methodExist = false;
 323
 324         if (agent.jsHdl.interfaceProxies && agent.jsHdl.interfaceProxies[ifName])
 325                 if (agent.jsHdl.interfaceProxies[ifName][signal]) {
 326                         methodExist = true;
 327                 } else {
 328                         agent.jsHdl.interfaceProxies[ifName][signal] = function() {
 329                                 service._emitSignal(agent.objectPath, signal, arguments[0]);
 330                         };
 331                 return;
 332         }
 333
 334         if ((agent.jsHdl[signal] == undefined || agent.jsHdl[signal] == null) && !methodExist)
 335                 agent.jsHdl[signal] = function() {
 336                         service._emitSignal(agent.objectPath, signal, arguments[0]);
 337                 };
 338         else
 339                 cloudeebus.log("Can not create new method to emit signal '" + signal + "' in object JS this method already exist!");
 340 };
 341
 342
 343 cloudeebus.Service.prototype._createWrapper = function(agent) {
 344         var self = this;
 345         var parser = new DOMParser();
 346         var xmlDoc = parser.parseFromString(agent.xml, "text/xml");
 347         var ifXml = xmlDoc.getElementsByTagName("interface");
 348         agent.jsHdl.wrapperFunc = [];
 349         agent.jsHdl.methodId = [];
 350         agent.jsHdl.methodId[agent.objectPath] = [];
 351         for (var i=0; i < ifXml.length; i++) {
 352                 var ifName = ifXml[i].attributes.getNamedItem("name").value;
 353                 var ifChild = ifXml[i].firstChild;
 354                 while (ifChild) {
 355                         if (ifChild.nodeName == "method") {
 356                                 var metName = ifChild.attributes.getNamedItem("name").value;
 357                                 self._addMethod(ifName, metName, agent);
 358                         }
 359                         if (ifChild.nodeName == "signal") {
 360                                 var metName = ifChild.attributes.getNamedItem("name").value;
 361                                 self._addSignal(ifName, metName, agent);
 362                         }
 363                         ifChild = ifChild.nextSibling;
 364                 }
 365         }
 366 };
 367
 368
 369 cloudeebus.Service.prototype.addAgent = function(agent) {
 370         var self = this;
 371
 372         var promise = new cloudeebus.Promise(function (resolver) {
 373                 function ServiceAddAgentSuccessCB(objPath) {
 374                         try { // calling dbus hook object function for un-translated types
 375                                 self.agents.push(agent);
 376                                 agent.registered = true;
 377                                 var result = [ objPath ];
 378                                 resolver.fulfill(result[0], true);
 379                         }
 380                         catch (e) {
 381                                 var errorStr = cloudeebus.getError(e);
 382                                 cloudeebus.log("Method callback exception: " + errorStr);
 383                                 resolver.reject(errorStr, true);
 384                         }
 385                 }
 386
 387                 function ServiceAddAgenterrorCB(error) {
 388                         var errorStr = cloudeebus.getError(error);
 389                         cloudeebus.log("Error adding agent : " + agent.objectPath + ", error: " + errorStr);
 390                         self.promise.resolver.reject(errorStr, true);
 391                 }
 392
 393                 try {
 394                         self._createWrapper(agent);
 395                 }
 396                 catch (e) {
 397                         var errorStr = cloudeebus.getError(e);
 398                         cloudeebus.log("Exception creating agent wrapper " + agent.objectPath + " : " + errorStr);
 399                         resolver.reject(errorStr, true);
 400                         return;
 401                 }
 402
 403                 var arglist = [
 404                     agent.objectPath,
 405                     agent.xml
 406                     ];
 407
 408                 // call dbusSend with bus type, destination, object, message and arguments
 409                 self.wampSession.call("serviceAddAgent", arglist).then(ServiceAddAgentSuccessCB, ServiceAddAgenterrorCB);
 410         });
 411
 412         return promise;
 413 };
 414
 415
 416 cloudeebus.Service.prototype._deleteWrapper = function(agent) {
 417         var objJs = agent.jsHdl;
 418         if (objJs.methodId[agent.objectPath]) {
 419                 for (var idx in objJs.methodId[agent.objectPath]) {
 420                         try {
 421                                 cloudeebus.log("unsubscribe " + objJs.methodId[agent.objectPath][idx]);
 422                                 this.wampSession.unsubscribe(objJs.methodId[agent.objectPath][idx]);
 423                                 objJs.methodId[agent.objectPath][idx] = null;
 424                         }
 425                         catch (e) {
 426                                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 427                         }
 428                 }
 429                 delete objJs.methodId[agent.objectPath];
 430         }
 431 };
 432
 433
 434 cloudeebus.Service.prototype.removeAgent = function(rmAgent) {
 435         var self = this;
 436
 437         var promise = new cloudeebus.Promise(function (resolver) {
 438                 function ServiceRemoveAgentSuccessCB(agent) {
 439                         try { // calling dbus hook object function for un-translated types
 440                                 self.agents.pop(agent);
 441                                 agent.registered = false;
 442                                 resolver.fulfill(agent, true);
 443                         }
 444                         catch (e) {
 445                                 var errorStr = cloudeebus.getError(e);
 446                                 cloudeebus.log("Method callback exception: " + errorStr);
 447                                 resolver.reject(errorStr, true);
 448                         }
 449                 }
 450
 451                 function ServiceRemoveAgentErrorCB(error) {
 452                         var errorStr = cloudeebus.getError(error);
 453                         cloudeebus.log("Error removing agent : " + rmAgent.objectPath + ", error: " + errorStr);
 454                         self.promise.resolver.reject(errorStr, true);
 455                 }
 456
 457                 try {
 458                         self._deleteWrapper(rmAgent);
 459                 }
 460                 catch (e) {
 461                         var errorStr = cloudeebus.getError(e);
 462                         cloudeebus.log("Exception removing wrapper of agent " + rmAgent.objectPath + " : " + errorStr);
 463                         errorCB(errorStr);
 464                 }
 465
 466                 var arglist = [
 467                     rmAgent.objectPath
 468                     ];
 469
 470                 // call dbusSend with bus type, destination, object, message and arguments
 471                 self.wampSession.call("serviceDelAgent", arglist).then(ServiceRemoveAgentSuccessCB, ServiceRemoveAgentErrorCB);
 472         });
 473
 474         return promise;
 475 };
 476
 477
 478 cloudeebus.Service.prototype._returnMethod = function(methodId, callIndex, success, result, successCB, errorCB) {
 479         var arglist = [
 480             methodId,
 481             callIndex,
 482             success,
 483             result
 484             ];
 485
 486         this.wampSession.call("returnMethod", arglist).then(successCB, errorCB);
 487 };
 488
 489
 490 cloudeebus.Service.prototype._emitSignal = function(objectPath, signalName, result, successCB, errorCB) {
 491         var arglist = [
 492             objectPath,
 493             signalName,
 494             result
 495             ];
 496
 497         this.wampSession.call("emitSignal", arglist).then(successCB, errorCB);
 498 };
 499
 500
 501
 502 /*****************************************************************************/
 503
 504 function _processWrappers(wrappers, value) {
 505         for (var i=0; i<wrappers.length; i++)
 506                 wrappers[i](value);
 507 }
 508
 509
 510 function _processWrappersAsync(wrappers, value) {
 511         var taskid = -1;
 512         function processAsyncOnce() {
 513                 _processWrappers(wrappers, value);
 514                 clearInterval(taskid);
 515         }
 516         taskid = setInterval(processAsyncOnce, 200);
 517 }
 518
 519
 520
 521 /*****************************************************************************/
 522
 523 cloudeebus.PromiseResolver = function(promise) {
 524         this.promise = promise;
 525         this.resolved = null;
 526     return this;
 527 };
 528
 529
 530 cloudeebus.PromiseResolver.prototype.resolve = function(value, sync) {
 531         if (this.resolved)
 532                 return;
 533
 534         var then = (value && value.then && value.then.apply) ? value.then : null;
 535         if (then) {
 536                 var self = this;
 537                 var fulfillCallback = function(arg) {
 538                         self.resolve(arg, true);
 539                 };
 540                 var rejectCallback = function(arg) {
 541                         self.reject(arg, true);
 542                 };
 543                 try {
 544                         then.apply(value, [fulfillCallback, rejectCallback]);
 545                 }
 546                 catch (e) {
 547                         this.reject(cloudeebus.getError(e), true);
 548                 }
 549         }
 550
 551         this.fulfill(value, sync);
 552 };
 553
 554
 555 cloudeebus.PromiseResolver.prototype.fulfill = function(value, sync) {
 556         if (this.resolved)
 557                 return;
 558
 559         var promise = this.promise;
 560         promise.state = "fulfilled";
 561         promise.result = value;
 562
 563         this.resolved = true;
 564         if (sync)
 565                 _processWrappers(promise._fulfillWrappers, value);
 566         else
 567                 _processWrappersAsync(promise._fulfillWrappers, value);
 568 };
 569
 570
 571 cloudeebus.PromiseResolver.prototype.reject = function(value, sync) {
 572         if (this.resolved)
 573                 return;
 574
 575         var promise = this.promise;
 576         promise.state = "rejected";
 577         promise.result = value;
 578
 579         this.resolved = true;
 580         if (sync)
 581                 _processWrappers(promise._rejectWrappers, value);
 582         else
 583                 _processWrappersAsync(promise._rejectWrappers, value);
 584 };
 585
 586
 587
 588 /*****************************************************************************/
 589
 590 cloudeebus.Promise = function(init) {
 591         this.state = "pending";
 592         this.result = null;
 593         this._fulfillWrappers = [];
 594         this._rejectWrappers = [];
 595         this.resolver = new cloudeebus.PromiseResolver(this);
 596         if (init) {
 597                 try {
 598                         init.apply(this, [this.resolver]);
 599                 }
 600                 catch (e) {
 601                         this.resolver.reject(cloudeebus.getError(e), true);
 602                 }
 603         }
 604     return this;
 605 };
 606
 607
 608 cloudeebus.Promise.prototype.appendWrappers = function(fulfillWrapper, rejectWrapper) {
 609         if (fulfillWrapper)
 610                 this._fulfillWrappers.push(fulfillWrapper);
 611         if (rejectWrapper)
 612                 this._rejectWrappers.push(rejectWrapper);
 613         if (this.state == "fulfilled")
 614                 _processWrappersAsync(this._fulfillWrappers, this.result);
 615         if (this.state == "rejected")
 616                 _processWrappersAsync(this._rejectWrappers, this.result);
 617 };
 618
 619
 620 cloudeebus.Promise.prototype.then = function(fulfillCB, rejectCB) {
 621         var promise = new cloudeebus.Promise();
 622         var resolver = promise.resolver;
 623         var fulfillWrapper, rejectWrapper;
 624
 625         if (fulfillCB)
 626                 fulfillWrapper = function(arg) {
 627                         try {
 628                                 var value = fulfillCB.apply(promise, [arg]);
 629                                 resolver.resolve(value, true);
 630                         }
 631                         catch (e) {
 632                                 resolver.reject(cloudeebus.getError(e), true);
 633                         }
 634                 };
 635         else
 636                 fulfillWrapper = function(arg) {
 637                         resolver.fulfill(arg, true);
 638                 };
 639
 640         if (rejectCB)
 641                 rejectWrapper = function(arg) {
 642                         try {
 643                                 var value = rejectCB.apply(promise, [arg]);
 644                                 resolver.resolve(value, true);
 645                         }
 646                         catch (e) {
 647                                 resolver.reject(cloudeebus.getError(e), true);
 648                         }
 649                 };
 650         else
 651                 rejectWrapper = function(arg) {
 652                         resolver.reject(arg, true);
 653                 };
 654
 655         this.appendWrappers(fulfillWrapper,rejectWrapper);
 656         return promise;
 657 };
 658
 659
 660 cloudeebus.Promise.prototype["catch"] = function(rejectCB) {
 661         return this.then(undefined,rejectCB);
 662 };
 663
 664
 665 cloudeebus.Promise.prototype.done = function(fulfillCB, rejectCB) {
 666         this.appendWrappers(fulfillCB,rejectCB);
 667 };
 668
 669
 670 cloudeebus.Promise.resolve = function(value) {
 671         var promise = new cloudeebus.Promise();
 672         promise.resolver.resolve(value);
 673         return promise;
 674 };
 675
 676
 677 cloudeebus.Promise.fulfill = function(value) {
 678         var promise = new cloudeebus.Promise();
 679         promise.resolver.fulfill(value);
 680         return promise;
 681 };
 682
 683
 684 cloudeebus.Promise.reject = function(value) {
 685         var promise = new cloudeebus.Promise();
 686         promise.resolver.reject(value);
 687         return promise;
 688 };
 689
 690
 691 cloudeebus.Promise.any = function() {
 692         var promise = new cloudeebus.Promise();
 693         var resolver = promise.resolver;
 694         var fulfillCallback = function(arg) {
 695                 resolver.resolve(arg, true);
 696         };
 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                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 705         return promise;
 706 };
 707
 708
 709 cloudeebus.Promise.every = function() {
 710         var promise = new cloudeebus.Promise();
 711         var resolver = promise.resolver;
 712         var index = 0;
 713         var countdown = arguments.length;
 714         var args = new Array(countdown);
 715         var rejectCallback = function(arg) {
 716                 resolver.reject(arg, true);
 717         };
 718         if (arguments.length == 0)
 719                 resolver.resolve(undefined, true);
 720         else
 721                 for (i in arguments) {
 722                         var fulfillCallback = function(arg) {
 723                                 args[index] = arg;
 724                                 countdown--;
 725                                 if (countdown == 0)
 726                                         resolver.resolve(args, true);
 727                         };
 728                         index++;
 729                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 730                 }
 731
 732         return promise;
 733 };
 734
 735
 736 cloudeebus.Promise.some = function() {
 737         var promise = new cloudeebus.Promise();
 738         var resolver = promise.resolver;
 739         var index = 0;
 740         var countdown = arguments.length;
 741         var args = new Array(countdown);
 742         var fulfillCallback = function(arg) {
 743                 resolver.resolve(arg, true);
 744         };
 745         if (arguments.length == 0)
 746                 resolver.resolve(undefined, true);
 747         else
 748                 for (i in arguments) {
 749                         var rejectCallback = function(arg) {
 750                                 args[index] = arg;
 751                                 countdown--;
 752                                 if (countdown == 0)
 753                                         resolver.reject(args, true);
 754                         };
 755                         index++;
 756                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 757                 }
 758
 759         return promise;
 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         return this;
 773 };
 774
 775
 776 cloudeebus.ProxyObject.prototype.getInterface = function(ifName) {
 777         return this.interfaceProxies[ifName];
 778 };
 779
 780
 781 cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 782
 783         var self = this;
 784
 785         function getAllPropertiesSuccessCB(props) {
 786                 var ifProxy = self.interfaceProxies[self.propInterfaces[self.propInterfaces.length-1]];
 787                 for (var prop in props)
 788                         ifProxy[prop] = self[prop] = props[prop];
 789                 getAllPropertiesNextInterfaceCB();
 790         }
 791
 792         function getAllPropertiesNextInterfaceCB() {
 793                 self.propInterfaces.pop();
 794                 if (self.propInterfaces.length > 0)
 795                         self.callMethod("org.freedesktop.DBus.Properties",
 796                                 "GetAll",
 797                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 798                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 799                 else {
 800                         self.propInterfaces = null;
 801                         if (successCB)
 802                                 successCB(self);
 803                 }
 804         }
 805
 806         function introspectSuccessCB(str) {
 807                 var parser = new DOMParser();
 808                 var xmlDoc = parser.parseFromString(str, "text/xml");
 809                 var interfaces = xmlDoc.getElementsByTagName("interface");
 810                 self.propInterfaces = [];
 811                 var supportDBusProperties = false;
 812                 for (var i=0; i < interfaces.length; i++) {
 813                         var ifName = interfaces[i].attributes.getNamedItem("name").value;
 814                         self.interfaceProxies[ifName] = new cloudeebus.ProxyObject(self.wampSession, self.busConnection, self.busName, self.objectPath);
 815                         if (ifName == "org.freedesktop.DBus.Properties")
 816                                 supportDBusProperties = true;
 817                         var hasProperties = false;
 818                         var ifChild = interfaces[i].firstChild;
 819                         while (ifChild) {
 820                                 if (ifChild.nodeName == "method") {
 821                                         var nArgs = 0;
 822                                         var signature = "";
 823                                         var metChild = ifChild.firstChild;
 824                                         while (metChild) {
 825                                                 if (metChild.nodeName == "arg" &&
 826                                                         metChild.attributes.getNamedItem("direction").value == "in") {
 827                                                                 signature += metChild.attributes.getNamedItem("type").value;
 828                                                                 nArgs++;
 829                                                 }
 830                                                 metChild = metChild.nextSibling;
 831                                         }
 832                                         var metName = ifChild.attributes.getNamedItem("name").value;
 833                                         if (!self[metName])
 834                                                 self._addMethod(ifName, metName, nArgs, signature);
 835                                         self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs, signature);
 836                                 }
 837                                 else if (ifChild.nodeName == "property") {
 838                                         if (!hasProperties)
 839                                                 self.propInterfaces.push(ifName);
 840                                         hasProperties = true;
 841                                 }
 842                                 ifChild = ifChild.nextSibling;
 843                         }
 844                 }
 845                 if (supportDBusProperties && self.propInterfaces.length > 0) {
 846                         self.callMethod("org.freedesktop.DBus.Properties",
 847                                 "GetAll",
 848                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 849                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 850                 }
 851                 else {
 852                         self.propInterfaces = null;
 853                         if (successCB)
 854                                 successCB(self);
 855                 }
 856         }
 857
 858         // call Introspect on self
 859         self.callMethod("org.freedesktop.DBus.Introspectable", "Introspect", []).then(introspectSuccessCB, errorCB);
 860 };
 861
 862
 863 cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs, signature) {
 864
 865         var self = this;
 866
 867         self[method] = function() {
 868                 var args = [];
 869                 for (var i=0; i < nArgs; i++ )
 870                         args.push(arguments[i]);
 871                 return self.callMethod(ifName, method, args, signature);
 872         };
 873 };
 874
 875
 876 cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, signature) {
 877
 878         var self = this;
 879
 880         var promise = new cloudeebus.Promise(function (resolver) {
 881                 function callMethodSuccessCB(str) {
 882                         try { // calling dbus hook object function for un-translated types
 883                                 var result = eval(str);
 884                                 resolver.fulfill(result[0], true);
 885                         }
 886                         catch (e) {
 887                                 var errorStr = cloudeebus.getError(e);
 888                                 cloudeebus.log("Method callback exception: " + errorStr);
 889                                 resolver.reject(errorStr, true);
 890                         }
 891                 }
 892
 893                 function callMethodErrorCB(error) {
 894                         var errorStr = cloudeebus.getError(error);
 895                         cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + errorStr);
 896                         resolver.reject(errorStr, true);
 897                 }
 898
 899                 var arglist = [
 900                         self.busConnection.name,
 901                         self.busName,
 902                         self.objectPath,
 903                         ifName,
 904                         method,
 905                         JSON.stringify(args)
 906                 ];
 907
 908                 // call dbusSend with bus type, destination, object, message and arguments
 909                 self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
 910         });
 911
 912         return promise;
 913 };
 914
 915
 916 cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, handlerCB, errorCB) {
 917
 918         var self = this;
 919
 920         function signalHandler(id, data) {
 921                 if (handlerCB) {
 922                         try { // calling dbus hook object function for un-translated types
 923                                 handlerCB.apply(self, eval(data));
 924                         }
 925                         catch (e) {
 926                                 var errorStr = cloudeebus.getError(e);
 927                                 cloudeebus.log("Signal handler exception: " + errorStr);
 928                                 if (errorCB)
 929                                         errorCB(errorStr);
 930                         }
 931                 }
 932         }
 933
 934         function connectToSignalSuccessCB(str) {
 935                 try {
 936                         self.wampSession.subscribe(str, signalHandler);
 937                 }
 938                 catch (e) {
 939                         cloudeebus.log("Subscribe error: " + cloudeebus.getError(e));
 940                 }
 941         }
 942
 943         function connectToSignalErrorCB(error) {
 944                 var errorStr = cloudeebus.getError(error);
 945                 cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + errorStr);
 946                 if (errorCB)
 947                         errorCB(errorStr);
 948         }
 949
 950         var arglist = [
 951                 self.busConnection.name,
 952                 self.busName,
 953                 self.objectPath,
 954                 ifName,
 955                 signal
 956         ];
 957
 958         // call dbusSend with bus type, destination, object, message and arguments
 959         self.wampSession.call("dbusRegister", arglist).then(connectToSignalSuccessCB, connectToSignalErrorCB);
 960 };
 961
 962
 963 cloudeebus.ProxyObject.prototype.disconnectSignal = function(ifName, signal) {
 964         try {
 965                 this.wampSession.unsubscribe(this.busConnection.name + "#" + this.busName + "#" + this.objectPath + "#" + ifName + "#" + signal);
 966         }
 967         catch (e) {
 968                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 969         }
 970 };