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: "0.5.1",
  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 && error.uri)
  49                 return error.desc + " : " + error.uri;
  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;
  56         if (error.message)
  57                 return error.message;
  58         return error;
  59 };
  60
  61 cloudeebus.versionCheck = function(version) {
  62         var ver = version.split(".");
  63         var min = cloudeebus.minVersion.split(".");
  64         for (var i=0; i<ver.length; i++) {
  65                 if (Number(ver[i]) > Number(min[i]))
  66                         return true;
  67                 if (Number(ver[i]) < Number(min[i]))
  68                         return false;
  69         }
  70         return true;
  71 };
  72
  73
  74 cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
  75         cloudeebus.reset();
  76         cloudeebus.uri = uri;
  77
  78         function onCloudeebusVersionCheckCB(version) {
  79                 if (cloudeebus.versionCheck(version)) {
  80                         cloudeebus.log("Connected to " + cloudeebus.uri);
  81                         if (successCB)
  82                                 successCB();
  83                 } else {
  84                         var errorMsg = "Cloudeebus server version " + version + " unsupported, need version " + cloudeebus.minVersion + " or superior";
  85                         cloudeebus.log(errorMsg);
  86                         if (errorCB)
  87                                 errorCB(errorMsg);
  88                 }
  89         }
  90
  91         function onWAMPSessionAuthErrorCB(error) {
  92                 var errorStr = cloudeebus.getError(error);
  93                 cloudeebus.log("Authentication error: " + errorStr);
  94                 if (errorCB)
  95                         errorCB(errorStr);
  96         }
  97
  98         function onWAMPSessionAuthenticatedCB(permissions) {
  99                 cloudeebus.sessionBus = new cloudeebus.BusConnection("session", cloudeebus.wampSession);
 100                 cloudeebus.systemBus = new cloudeebus.BusConnection("system", cloudeebus.wampSession);
 101                 cloudeebus.wampSession.call("getVersion").then(onCloudeebusVersionCheckCB, errorCB);
 102         }
 103
 104         function onWAMPSessionChallengedCB(challenge) {
 105                 var signature = cloudeebus.wampSession.authsign(challenge, manifest.key);
 106                 cloudeebus.wampSession.auth(signature).then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
 107         }
 108
 109         function onWAMPSessionConnectedCB(session) {
 110                 cloudeebus.wampSession = session;
 111                 if (manifest)
 112                         cloudeebus.wampSession.authreq(
 113                                         manifest.name,
 114                                         {permissions: manifest.permissions}
 115                                 ).then(onWAMPSessionChallengedCB, onWAMPSessionAuthErrorCB);
 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         var promise = new cloudeebus.Promise(function (resolver) {
 169           cloudeebusService = new cloudeebus.Service(self.wampSession, self, serviceName);
 170
 171                 function ServiceAddedSuccessCB(serviceName) {
 172                         try { // calling dbus hook object function for un-translated types
 173                                 cloudeebusService.isCreated = true;
 174                                 var result = [ cloudeebusService ];
 175                                 resolver.fulfill(result[0], true);
 176                         }
 177                         catch (e) {
 178                                 var errorStr = cloudeebus.getError(e);
 179                                 cloudeebus.log("Method callback exception: " + errorStr);
 180                                 resolver.reject(errorStr, true);
 181                         }
 182                 }
 183
 184                 function ServiceAddedErrorCB(error) {
 185                         var errorStr = cloudeebus.getError(error);
 186                         cloudeebus.log("Error adding service method: " + self.name + ", error: " + errorStr);
 187                         self.promise.resolver.reject(errorStr, true);
 188                 }
 189
 190                 var arglist = [
 191                     self.name,
 192                     serviceName
 193                     ];
 194
 195                 // call dbusSend with bus type, destination, object, message and arguments
 196                 self.wampSession.call("serviceAdd", arglist).then(ServiceAddedSuccessCB, ServiceAddedErrorCB);
 197         });
 198
 199         return promise;
 200 };
 201
 202
 203 /*****************************************************************************/
 204 //Generic definition for an agent. An agent need :
 205 //srvDbusName : the DBus parent service
 206 //objPath : a DBus path to access it
 207 //jsHdl : a Javascript handler to process methods,
 208 //xml : the xml which describe interface/methods/signals...
 209 cloudeebus.Agent = function(srvDbusName, objPath, jsHdl, xml) {
 210         this.srvName = srvDbusName;
 211         this.registered = false;
 212         this.xml = xml;
 213         this.objectPath = objPath;
 214         this.jsHdl = jsHdl;
 215         return this;
 216 };
 217
 218
 219 cloudeebus.Service = function(session, busConnection, name) {
 220         this.wampSession = session;
 221         this.busConnection = busConnection;
 222         this.name = name;
 223         this.agents = [];
 224         this.isCreated = false;
 225         return this;
 226 };
 227
 228 cloudeebus.Service.prototype.remove = function() {
 229         var self = this;
 230
 231         var promise = new cloudeebus.Promise(function (resolver) {
 232                 function ServiceRemovedSuccessCB(serviceName) {
 233                         try { // calling dbus hook object function for un-translated types
 234                                 var result = [ serviceName ];
 235                                 resolver.fulfill(result[0], true);
 236                         }
 237                         catch (e) {
 238                                 var errorStr = cloudeebus.getError(e);
 239                                 cloudeebus.log("Method callback exception: " + errorStr);
 240                                 resolver.reject(errorStr, true);
 241                         }
 242                 }
 243
 244                 function ServiceRemovedErrorCB(error) {
 245                         var errorStr = cloudeebus.getError(error);
 246                         cloudeebus.log("Error removing service : " + self.name + ", error: " + errorStr);
 247                         self.promise.resolver.reject(errorStr, true);
 248                 }
 249
 250                 for (var idx in self.agents) {
 251                         if (self.agents[idx]) {
 252                                 self.delAgent(self.agents[idx]);
 253                         }
 254                 }
 255
 256                 var arglist = [
 257                     self.name
 258                     ];
 259
 260                 // call dbusSend with bus type, destination, object, message and arguments
 261                 self.wampSession.call("serviceRelease", arglist).then(ServiceRemovedSuccessCB, ServiceRemovedErrorCB);
 262         });
 263
 264         return promise;
 265 };
 266
 267 cloudeebus.Service.prototype._searchMethod = function(ifName, method, objectJS) {
 268
 269         var funcToCall = null;
 270
 271         // Check if 'objectJS' has a member 'interfaceProxies' with an interface named 'ifName'
 272         // and a method named 'method'
 273         if (objectJS.interfaceProxies && objectJS.interfaceProxies[ifName] &&
 274                 objectJS.interfaceProxies[ifName][method]) {
 275                 funcToCall = objectJS.interfaceProxies[ifName][method];
 276         } else {
 277                 // retrieve the method directly from 'root' of objectJs
 278                 funcToCall = objectJS[method];
 279         }
 280
 281         return funcToCall;
 282 };
 283
 284 cloudeebus.Service.prototype._addMethod = function(ifName, method, agent) {
 285
 286         var service = this;
 287         var methodId = this.name + "#" + agent.objectPath + "#" + ifName + "#" + method;
 288         var funcToCall = this._searchMethod(ifName, method, agent.jsHdl);
 289
 290         if (funcToCall == null)
 291                 cloudeebus.log("Method " + method + " doesn't exist in Javascript object");
 292         else {
 293                 agent.jsHdl.wrapperFunc[method] = function() {
 294                         var result;
 295                         var methodId = arguments[0];
 296                         var callDict = {};
 297                         // affectation of callDict in eval, otherwise dictionary(='{}') interpreted as block of code by eval
 298                         eval("callDict = " + arguments[1]);
 299                         try {
 300                                 result = funcToCall.apply(agent.jsHdl, callDict.args);
 301                                 service._returnMethod(methodId, callDict.callIndex, true, result);
 302                         }
 303                         catch (e) {
 304                                 var errorStr = cloudeebus.getError(e);
 305                                 cloudeebus.log("Method " + ifName + "." + method + " call on " + agent.objectPath + " exception: " + errorStr);
 306                                 service._returnMethod(methodId, callDict.callIndex, false, errorStr);
 307                         }
 308                 };
 309                 agent.jsHdl.methodId[agent.objectPath].push(methodId);
 310                 cloudeebus.log("subscribe " + methodId);
 311                 this.wampSession.subscribe(methodId, agent.jsHdl.wrapperFunc[method]);
 312         }
 313 };
 314
 315 cloudeebus.Service.prototype._addSignal = function(ifName, signal, agent) {
 316         var service = this;
 317         var methodExist = false;
 318
 319         if (agent.jsHdl.interfaceProxies && agent.jsHdl.interfaceProxies[ifName])
 320                 if (agent.jsHdl.interfaceProxies[ifName][signal]) {
 321                         methodExist = true;
 322                 } else {
 323                         agent.jsHdl.interfaceProxies[ifName][signal] = function() {
 324                                 service._emitSignal(agent.objectPath, signal, arguments[0]);
 325                         };
 326                 return;
 327         }
 328
 329         if ((agent.jsHdl[signal] == undefined || agent.jsHdl[signal] == null) && !methodExist)
 330                 agent.jsHdl[signal] = function() {
 331                         service._emitSignal(agent.objectPath, signal, arguments[0]);
 332                 };
 333         else
 334                 cloudeebus.log("Can not create new method to emit signal '" + signal + "' in object JS this method already exist!");
 335 };
 336
 337 cloudeebus.Service.prototype._createWrapper = function(agent) {
 338         var self = this;
 339         var parser = new DOMParser();
 340         var xmlDoc = parser.parseFromString(agent.xml, "text/xml");
 341         var ifXml = xmlDoc.getElementsByTagName("interface");
 342         agent.jsHdl.wrapperFunc = [];
 343         agent.jsHdl.methodId = [];
 344         agent.jsHdl.methodId[agent.objectPath] = [];
 345         for (var i=0; i < ifXml.length; i++) {
 346                 var ifName = ifXml[i].attributes.getNamedItem("name").value;
 347                 var ifChild = ifXml[i].firstChild;
 348                 while (ifChild) {
 349                         if (ifChild.nodeName == "method") {
 350                                 var metName = ifChild.attributes.getNamedItem("name").value;
 351                                 self._addMethod(ifName, metName, agent);
 352                         }
 353                         if (ifChild.nodeName == "signal") {
 354                                 var metName = ifChild.attributes.getNamedItem("name").value;
 355                                 self._addSignal(ifName, metName, agent);
 356                         }
 357                         ifChild = ifChild.nextSibling;
 358                 }
 359         }
 360 };
 361
 362 cloudeebus.Service.prototype.addAgent = function(agent) {
 363         var self = this;
 364
 365         var promise = new cloudeebus.Promise(function (resolver) {
 366                 function ServiceAddAgentSuccessCB(objPath) {
 367                         try { // calling dbus hook object function for un-translated types
 368                                 self.agents.push(agent);
 369                                 agent.registered = true;
 370                                 var result = [ objPath ];
 371                                 resolver.fulfill(result[0], true);
 372                         }
 373                         catch (e) {
 374                                 var errorStr = cloudeebus.getError(e);
 375                                 cloudeebus.log("Method callback exception: " + errorStr);
 376                                 resolver.reject(errorStr, true);
 377                         }
 378                 }
 379
 380                 function ServiceAddAgenterrorCB(error) {
 381                         var errorStr = cloudeebus.getError(error);
 382                         cloudeebus.log("Error adding agent : " + agent.objectPath + ", error: " + errorStr);
 383                         self.promise.resolver.reject(errorStr, true);
 384                 }
 385
 386                 try {
 387                         self._createWrapper(agent);
 388                 }
 389                 catch (e) {
 390                         var errorStr = cloudeebus.getError(e);
 391                         alert("Exception creating agent wrapper " + agent.objectPath + " : " + errorStr);
 392                         resolver.reject(errorStr, true);
 393                         return;
 394                 }
 395
 396                 var arglist = [
 397                     agent.objectPath,
 398                     agent.xml
 399                     ];
 400
 401                 // call dbusSend with bus type, destination, object, message and arguments
 402                 self.wampSession.call("serviceAddAgent", arglist).then(ServiceAddAgentSuccessCB, ServiceAddAgenterrorCB);
 403         });
 404
 405         return promise;
 406 };
 407
 408 cloudeebus.Service.prototype._deleteWrapper = function(agent) {
 409         var objJs = agent.jsHdl;
 410         if (objJs.methodId[agent.objectPath]) {
 411                 for (var idx in objJs.methodId[agent.objectPath]) {
 412                         try {
 413                                 cloudeebus.log("unsubscribe " + objJs.methodId[agent.objectPath][idx]);
 414                                 this.wampSession.unsubscribe(objJs.methodId[agent.objectPath][idx]);
 415                                 objJs.methodId[agent.objectPath][idx] = null;
 416                         }
 417                         catch (e) {
 418                                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 419                         }
 420                 }
 421                 delete objJs.methodId[agent.objectPath];
 422         }
 423 };
 424
 425 cloudeebus.Service.prototype.delAgent = function(rmAgent, successCB, errorCB) {
 426         var self = this;
 427
 428         var promise = new cloudeebus.Promise(function (resolver) {
 429                 function ServiceDelAgentSuccessCB(agent) {
 430                         try { // calling dbus hook object function for un-translated types
 431                                 self.agents.push(agent);
 432                                 agent.registered = true;
 433                                 var result = [ agent ];
 434                                 resolver.fulfill(result[0], true);
 435                         }
 436                         catch (e) {
 437                                 var errorStr = cloudeebus.getError(e);
 438                                 cloudeebus.log("Method callback exception: " + errorStr);
 439                                 resolver.reject(errorStr, true);
 440                         }
 441                 }
 442
 443                 function ServiceDelAgentErrorCB(error) {
 444                         var errorStr = cloudeebus.getError(error);
 445                         cloudeebus.log("Error removing agent : " + rmAgent.objectPath + ", error: " + errorStr);
 446                         self.promise.resolver.reject(errorStr, true);
 447                 }
 448
 449                 try {
 450                         self._deleteWrapper(rmAgent);
 451                 }
 452                 catch (e) {
 453                         var errorStr = cloudeebus.getError(e);
 454                         alert("Exception removing wrapper of agent " + rmAgent.objectPath + " : " + errorStr);
 455                         errorCB(errorStr);
 456                 }
 457
 458                 var arglist = [
 459                     rmAgent.objectPath
 460                     ];
 461
 462                 // call dbusSend with bus type, destination, object, message and arguments
 463                 self.wampSession.call("serviceDelAgent", arglist).then(ServiceDelAgentSuccessCB, ServiceDelAgentErrorCB);
 464         });
 465
 466         return promise;
 467 };
 468
 469 cloudeebus.Service.prototype._returnMethod = function(methodId, callIndex, success, result, successCB, errorCB) {
 470         var arglist = [
 471             methodId,
 472             callIndex,
 473             success,
 474             result
 475             ];
 476
 477         this.wampSession.call("returnMethod", arglist).then(successCB, errorCB);
 478 };
 479
 480 cloudeebus.Service.prototype._emitSignal = function(objectPath, signalName, result, successCB, errorCB) {
 481         var arglist = [
 482             objectPath,
 483             signalName,
 484             result
 485             ];
 486
 487         this.wampSession.call("emitSignal", arglist).then(successCB, errorCB);
 488 };
 489
 490
 491
 492 /*****************************************************************************/
 493
 494 function _processWrappers(wrappers, value) {
 495         for (var i=0; i<wrappers.length; i++)
 496                 wrappers[i](value);
 497 }
 498
 499
 500 function _processWrappersAsync(wrappers, value) {
 501         var taskid = -1;
 502         function processAsyncOnce() {
 503                 _processWrappers(wrappers, value);
 504                 clearInterval(taskid);
 505         }
 506         taskid = setInterval(processAsyncOnce, 200);
 507 }
 508
 509
 510
 511 /*****************************************************************************/
 512
 513 cloudeebus.PromiseResolver = function(promise) {
 514         this.promise = promise;
 515         this.resolved = null;
 516     return this;
 517 };
 518
 519
 520 cloudeebus.PromiseResolver.prototype.resolve = function(value, sync) {
 521         if (this.resolved)
 522                 return;
 523
 524         var then = (value && value.then && value.then.apply) ? value.then : null;
 525         if (then) {
 526                 var self = this;
 527                 var fulfillCallback = function(arg) {
 528                         self.resolve(arg, true);
 529                 };
 530                 var rejectCallback = function(arg) {
 531                         self.reject(arg, true);
 532                 };
 533                 try {
 534                         then.apply(value, [fulfillCallback, rejectCallback]);
 535                 }
 536                 catch (e) {
 537                         this.reject(cloudeebus.getError(e), true);
 538                 }
 539         }
 540
 541         this.fulfill(value, sync);
 542 };
 543
 544
 545 cloudeebus.PromiseResolver.prototype.fulfill = function(value, sync) {
 546         if (this.resolved)
 547                 return;
 548
 549         var promise = this.promise;
 550         promise.state = "fulfilled";
 551         promise.result = value;
 552
 553         this.resolved = true;
 554         if (sync)
 555                 _processWrappers(promise._fulfillWrappers, value);
 556         else
 557                 _processWrappersAsync(promise._fulfillWrappers, value);
 558 };
 559
 560
 561 cloudeebus.PromiseResolver.prototype.reject = function(value, sync) {
 562         if (this.resolved)
 563                 return;
 564
 565         var promise = this.promise;
 566         promise.state = "rejected";
 567         promise.result = value;
 568
 569         this.resolved = true;
 570         if (sync)
 571                 _processWrappers(promise._rejectWrappers, value);
 572         else
 573                 _processWrappersAsync(promise._rejectWrappers, value);
 574 };
 575
 576
 577
 578 /*****************************************************************************/
 579
 580 cloudeebus.Promise = function(init) {
 581         this.state = "pending";
 582         this.result = null;
 583         this._fulfillWrappers = [];
 584         this._rejectWrappers = [];
 585         this.resolver = new cloudeebus.PromiseResolver(this);
 586         if (init) {
 587                 try {
 588                         init.apply(this, [this.resolver]);
 589                 }
 590                 catch (e) {
 591                         this.resolver.reject(cloudeebus.getError(e), true);
 592                 }
 593         }
 594     return this;
 595 };
 596
 597
 598 cloudeebus.Promise.prototype.appendWrappers = function(fulfillWrapper, rejectWrapper) {
 599         if (fulfillWrapper)
 600                 this._fulfillWrappers.push(fulfillWrapper);
 601         if (rejectWrapper)
 602                 this._rejectWrappers.push(rejectWrapper);
 603         if (this.state == "fulfilled")
 604                 _processWrappersAsync(this._fulfillWrappers, this.result);
 605         if (this.state == "rejected")
 606                 _processWrappersAsync(this._rejectWrappers, this.result);
 607 };
 608
 609
 610 cloudeebus.Promise.prototype.then = function(fulfillCB, rejectCB) {
 611         var promise = new cloudeebus.Promise();
 612         var resolver = promise.resolver;
 613         var fulfillWrapper, rejectWrapper;
 614
 615         if (fulfillCB)
 616                 fulfillWrapper = function(arg) {
 617                         try {
 618                                 var value = fulfillCB.apply(promise, [arg]);
 619                                 resolver.resolve(value, true);
 620                         }
 621                         catch (e) {
 622                                 resolver.reject(cloudeebus.getError(e), true);
 623                         }
 624                 };
 625         else
 626                 fulfillWrapper = function(arg) {
 627                         resolver.fulfill(arg, true);
 628                 };
 629
 630         if (rejectCB)
 631                 rejectWrapper = function(arg) {
 632                         try {
 633                                 var value = rejectCB.apply(promise, [arg]);
 634                                 resolver.resolve(value, true);
 635                         }
 636                         catch (e) {
 637                                 resolver.reject(cloudeebus.getError(e), true);
 638                         }
 639                 };
 640         else
 641                 rejectWrapper = function(arg) {
 642                         resolver.reject(arg, true);
 643                 };
 644
 645         this.appendWrappers(fulfillWrapper,rejectWrapper);
 646         return promise;
 647 };
 648
 649
 650 cloudeebus.Promise.prototype["catch"] = function(rejectCB) {
 651         return this.then(undefined,rejectCB);
 652 };
 653
 654
 655 cloudeebus.Promise.prototype.done = function(fulfillCB, rejectCB) {
 656         this.appendWrappers(fulfillCB,rejectCB);
 657 };
 658
 659
 660 cloudeebus.Promise.resolve = function(value) {
 661         var promise = new cloudeebus.Promise();
 662         promise.resolver.resolve(value);
 663         return promise;
 664 };
 665
 666
 667 cloudeebus.Promise.fulfill = function(value) {
 668         var promise = new cloudeebus.Promise();
 669         promise.resolver.fulfill(value);
 670         return promise;
 671 };
 672
 673
 674 cloudeebus.Promise.reject = function(value) {
 675         var promise = new cloudeebus.Promise();
 676         promise.resolver.reject(value);
 677         return promise;
 678 };
 679
 680
 681 cloudeebus.Promise.any = function() {
 682         var promise = new cloudeebus.Promise();
 683         var resolver = promise.resolver;
 684         var fulfillCallback = function(arg) {
 685                 resolver.resolve(arg, true);
 686         };
 687         var rejectCallback = function(arg) {
 688                 resolver.reject(arg, true);
 689         };
 690         if (arguments.length == 0)
 691                 resolver.resolve(undefined, true);
 692         else
 693                 for (i in arguments)
 694                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 695         return promise;
 696 };
 697
 698
 699 cloudeebus.Promise.every = function() {
 700         var promise = new cloudeebus.Promise();
 701         var resolver = promise.resolver;
 702         var index = 0;
 703         var countdown = arguments.length;
 704         var args = new Array(countdown);
 705         var rejectCallback = function(arg) {
 706                 resolver.reject(arg, true);
 707         };
 708         if (arguments.length == 0)
 709                 resolver.resolve(undefined, true);
 710         else
 711                 for (i in arguments) {
 712                         var fulfillCallback = function(arg) {
 713                                 args[index] = arg;
 714                                 countdown--;
 715                                 if (countdown == 0)
 716                                         resolver.resolve(args, true);
 717                         };
 718                         index++;
 719                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 720                 }
 721
 722         return promise;
 723 };
 724
 725
 726 cloudeebus.Promise.some = function() {
 727         var promise = new cloudeebus.Promise();
 728         var resolver = promise.resolver;
 729         var index = 0;
 730         var countdown = arguments.length;
 731         var args = new Array(countdown);
 732         var fulfillCallback = function(arg) {
 733                 resolver.resolve(arg, true);
 734         };
 735         if (arguments.length == 0)
 736                 resolver.resolve(undefined, true);
 737         else
 738                 for (i in arguments) {
 739                         var rejectCallback = function(arg) {
 740                                 args[index] = arg;
 741                                 countdown--;
 742                                 if (countdown == 0)
 743                                         resolver.reject(args, true);
 744                         };
 745                         index++;
 746                         Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
 747                 }
 748
 749         return promise;
 750 };
 751
 752
 753
 754 /*****************************************************************************/
 755
 756 cloudeebus.ProxyObject = function(session, busConnection, busName, objectPath) {
 757         this.wampSession = session;
 758         this.busConnection = busConnection;
 759         this.busName = busName;
 760         this.objectPath = objectPath;
 761         this.interfaceProxies = {};
 762         return this;
 763 };
 764
 765
 766 cloudeebus.ProxyObject.prototype.getInterface = function(ifName) {
 767         return this.interfaceProxies[ifName];
 768 };
 769
 770
 771 cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 772
 773         var self = this;
 774
 775         function getAllPropertiesSuccessCB(props) {
 776                 var ifProxy = self.interfaceProxies[self.propInterfaces[self.propInterfaces.length-1]];
 777                 for (var prop in props)
 778                         ifProxy[prop] = self[prop] = props[prop];
 779                 getAllPropertiesNextInterfaceCB();
 780         }
 781
 782         function getAllPropertiesNextInterfaceCB() {
 783                 self.propInterfaces.pop();
 784                 if (self.propInterfaces.length > 0)
 785                         self.callMethod("org.freedesktop.DBus.Properties",
 786                                 "GetAll",
 787                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 788                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 789                 else {
 790                         self.propInterfaces = null;
 791                         if (successCB)
 792                                 successCB(self);
 793                 }
 794         }
 795
 796         function introspectSuccessCB(str) {
 797                 var parser = new DOMParser();
 798                 var xmlDoc = parser.parseFromString(str, "text/xml");
 799                 var interfaces = xmlDoc.getElementsByTagName("interface");
 800                 self.propInterfaces = [];
 801                 var supportDBusProperties = false;
 802                 for (var i=0; i < interfaces.length; i++) {
 803                         var ifName = interfaces[i].attributes.getNamedItem("name").value;
 804                         self.interfaceProxies[ifName] = new cloudeebus.ProxyObject(self.wampSession, self.busConnection, self.busName, self.objectPath);
 805                         if (ifName == "org.freedesktop.DBus.Properties")
 806                                 supportDBusProperties = true;
 807                         var hasProperties = false;
 808                         var ifChild = interfaces[i].firstChild;
 809                         while (ifChild) {
 810                                 if (ifChild.nodeName == "method") {
 811                                         var nArgs = 0;
 812                                         var signature = "";
 813                                         var metChild = ifChild.firstChild;
 814                                         while (metChild) {
 815                                                 if (metChild.nodeName == "arg" &&
 816                                                         metChild.attributes.getNamedItem("direction").value == "in") {
 817                                                                 signature += metChild.attributes.getNamedItem("type").value;
 818                                                                 nArgs++;
 819                                                 }
 820                                                 metChild = metChild.nextSibling;
 821                                         }
 822                                         var metName = ifChild.attributes.getNamedItem("name").value;
 823                                         if (!self[metName])
 824                                                 self._addMethod(ifName, metName, nArgs, signature);
 825                                         self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs, signature);
 826                                 }
 827                                 else if (ifChild.nodeName == "property") {
 828                                         if (!hasProperties)
 829                                                 self.propInterfaces.push(ifName);
 830                                         hasProperties = true;
 831                                 }
 832                                 ifChild = ifChild.nextSibling;
 833                         }
 834                 }
 835                 if (supportDBusProperties && self.propInterfaces.length > 0) {
 836                         self.callMethod("org.freedesktop.DBus.Properties",
 837                                 "GetAll",
 838                                 [self.propInterfaces[self.propInterfaces.length-1]]).then(getAllPropertiesSuccessCB,
 839                                 errorCB ? errorCB : getAllPropertiesNextInterfaceCB);
 840                 }
 841                 else {
 842                         self.propInterfaces = null;
 843                         if (successCB)
 844                                 successCB(self);
 845                 }
 846         }
 847
 848         // call Introspect on self
 849         self.callMethod("org.freedesktop.DBus.Introspectable", "Introspect", []).then(introspectSuccessCB, errorCB);
 850 };
 851
 852
 853 cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs, signature) {
 854
 855         var self = this;
 856
 857         self[method] = function() {
 858                 var args = [];
 859                 for (var i=0; i < nArgs; i++ )
 860                         args.push(arguments[i]);
 861                 return self.callMethod(ifName, method, args, signature);
 862         };
 863 };
 864
 865
 866 cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, signature) {
 867
 868         var self = this;
 869
 870         var promise = new cloudeebus.Promise(function (resolver) {
 871                 function callMethodSuccessCB(str) {
 872                         try { // calling dbus hook object function for un-translated types
 873                                 var result = eval(str);
 874                                 resolver.fulfill(result[0], true);
 875                         }
 876                         catch (e) {
 877                                 var errorStr = cloudeebus.getError(e);
 878                                 cloudeebus.log("Method callback exception: " + errorStr);
 879                                 resolver.reject(errorStr, true);
 880                         }
 881                 }
 882
 883                 function callMethodErrorCB(error) {
 884                         var errorStr = cloudeebus.getError(error);
 885                         cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + errorStr);
 886                         resolver.reject(errorStr, true);
 887                 }
 888
 889                 var arglist = [
 890                         self.busConnection.name,
 891                         self.busName,
 892                         self.objectPath,
 893                         ifName,
 894                         method,
 895                         JSON.stringify(args)
 896                 ];
 897
 898                 // call dbusSend with bus type, destination, object, message and arguments
 899                 self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
 900         });
 901
 902         return promise;
 903 };
 904
 905
 906 cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, handlerCB, errorCB) {
 907
 908         var self = this;
 909
 910         function signalHandler(id, data) {
 911                 if (handlerCB) {
 912                         try { // calling dbus hook object function for un-translated types
 913                                 handlerCB.apply(self, eval(data));
 914                         }
 915                         catch (e) {
 916                                 var errorStr = cloudeebus.getError(e);
 917                                 cloudeebus.log("Signal handler exception: " + errorStr);
 918                                 if (errorCB)
 919                                         errorCB(errorStr);
 920                         }
 921                 }
 922         }
 923
 924         function connectToSignalSuccessCB(str) {
 925                 try {
 926                         self.wampSession.subscribe(str, signalHandler);
 927                 }
 928                 catch (e) {
 929                         cloudeebus.log("Subscribe error: " + cloudeebus.getError(e));
 930                 }
 931         }
 932
 933         function connectToSignalErrorCB(error) {
 934                 var errorStr = cloudeebus.getError(error);
 935                 cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + errorStr);
 936                 if (errorCB)
 937                         errorCB(cloudeebus.getError(errorStr));
 938         }
 939
 940         var arglist = [
 941                 self.busConnection.name,
 942                 self.busName,
 943                 self.objectPath,
 944                 ifName,
 945                 signal
 946         ];
 947
 948         // call dbusSend with bus type, destination, object, message and arguments
 949         self.wampSession.call("dbusRegister", arglist).then(connectToSignalSuccessCB, connectToSignalErrorCB);
 950 };
 951
 952
 953 cloudeebus.ProxyObject.prototype.disconnectSignal = function(ifName, signal) {
 954         try {
 955                 this.wampSession.unsubscribe(this.busConnection.name + "#" + this.busName + "#" + this.objectPath + "#" + ifName + "#" + signal);
 956         }
 957         catch (e) {
 958                 cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 959         }
 960 };