X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=cloudeebus%2Fcloudeebus.js;h=92d31081364efbf75b5c3e0eeda651b1ddcbad79;hb=de126e87fcde25b375b2efb56583712b2ca8affc;hp=bc34d4f39a29da596fd7ef8a782953fdea7c1dd8;hpb=6a667321616c8307957cb01ad11776076212e56e;p=contrib%2Fcloudeebus.git

diff --git a/cloudeebus/cloudeebus.js b/cloudeebus/cloudeebus.js
index bc34d4f..92d3108 100644
--- a/cloudeebus/cloudeebus.js
+++ b/cloudeebus/cloudeebus.js
@@ -28,7 +28,10 @@ var dbus = { // hook object for dbus types not translated by python-json
 
 /*****************************************************************************/
 
-var cloudeebus = window.cloudeebus = {version: "0.3.1"};
+var cloudeebus = window.cloudeebus = {
+		version: "0.5.99",
+		minVersion: "0.3.2"
+};
 
 cloudeebus.reset = function() {
 	cloudeebus.sessionBus = null;
@@ -41,18 +44,46 @@ cloudeebus.reset = function() {
 cloudeebus.log = function(msg) { 
 };
 
+cloudeebus.getError = function(error) {
+	if (error.desc && error.uri)
+		return error.desc + " : " + error.uri; // error cloudeebus (from python)
+	if (error.desc)
+		return error.desc;
+	if (error.uri)
+		return error.uri;
+	if (error.name && error.message)
+		return error.name + " : " + error.message;
+	if (error.message)
+		return error.message;
+	if (error.name)
+		return error.name;
+	return error; // error from Autobahn
+};
+
+cloudeebus.versionCheck = function(version) {
+	var ver = version.split(".");
+	var min = cloudeebus.minVersion.split(".");
+	for (var i=0; i<ver.length; i++) {
+		if (Number(ver[i]) > Number(min[i]))
+			return true;
+		if (Number(ver[i]) < Number(min[i]))
+			return false;
+	}
+	return true;
+};
+
 
 cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
 	cloudeebus.reset();
 	cloudeebus.uri = uri;
 	
 	function onCloudeebusVersionCheckCB(version) {
-		if (cloudeebus.version == version) {
+		if (cloudeebus.versionCheck(version)) {
 			cloudeebus.log("Connected to " + cloudeebus.uri);
 			if (successCB)
 				successCB();
 		} else {
-			var errorMsg = "Cloudeebus server version " + version + " and client version " + cloudeebus.version + " mismatch";
+			var errorMsg = "Cloudeebus server version " + version + " unsupported, need version " + cloudeebus.minVersion + " or superior";
 			cloudeebus.log(errorMsg);
 			if (errorCB)
 				errorCB(errorMsg);
@@ -60,9 +91,10 @@ cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
 	}
 	
 	function onWAMPSessionAuthErrorCB(error) {
-		cloudeebus.log("Authentication error: " + error.desc);
+		var errorStr = cloudeebus.getError(error);
+		cloudeebus.log("Authentication error: " + errorStr);
 		if (errorCB)
-			errorCB(error.desc);
+			errorCB(errorStr);
 	}
 	
 	function onWAMPSessionAuthenticatedCB(permissions) {
@@ -78,11 +110,13 @@ cloudeebus.connect = function(uri, manifest, successCB, errorCB) {
 	
 	function onWAMPSessionConnectedCB(session) {
 		cloudeebus.wampSession = session;
-		if (manifest)
+		if (manifest) {
 			cloudeebus.wampSession.authreq(
 					manifest.name, 
-					{permissions: JSON.stringify(manifest.permissions)}
+					{permissions: manifest.permissions, 
+						 services: manifest.services}
 				).then(onWAMPSessionChallengedCB, onWAMPSessionAuthErrorCB);
+		}
 		else
 			cloudeebus.wampSession.authreq().then(function() {
 				cloudeebus.wampSession.auth().then(onWAMPSessionAuthenticatedCB, onWAMPSessionAuthErrorCB);
@@ -132,22 +166,600 @@ cloudeebus.BusConnection.prototype.getObject = function(busName, objectPath, int
 };
 
 
+cloudeebus.BusConnection.prototype.addService = function(serviceName) {
+	var self = this;
+
+	if (!serviceName)
+		serviceName = "";
+	
+	var promise = new cloudeebus.Promise(function (resolver) {
+		var cloudeebusService = new cloudeebus.Service(self.wampSession, self, serviceName);
+	
+		function ServiceAddedSuccessCB(serviceName) {
+			try {
+				cloudeebusService.isCreated = true;
+				resolver.fulfill(cloudeebusService, true);
+			}
+			catch (e) {
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method callback exception: " + errorStr);
+				resolver.reject(errorStr, true);
+			}		
+		}
+		
+		function ServiceAddedErrorCB(error) {
+			var errorStr = cloudeebus.getError(error);
+			cloudeebus.log("Error adding service method: " + self.name + ", error: " + errorStr);
+			resolver.reject(errorStr, true);
+		}
+
+		var arglist = [
+		    self.name,
+		    serviceName
+		    ];
+
+		// call dbusSend with bus type, destination, object, message and arguments
+		self.wampSession.call("serviceAdd", arglist).then(ServiceAddedSuccessCB, ServiceAddedErrorCB);
+	});
+	
+	return promise;
+};
+
+
+
+/*****************************************************************************/
+//Generic definition for an agent. An agent needs :
+//srvDbusName : the DBus parent service
+//objPath : a DBus path to access it
+//jsHdl : a Javascript handler to process methods, 
+//xml : the xml which describe interface/methods/signals...
+cloudeebus.Agent = function(srvDbusName, objPath, jsHdl, xml) {
+	this.srvName = srvDbusName;
+	this.registered = false;
+	this.xml = xml;
+	this.objectPath = objPath;
+	this.jsHdl = jsHdl;
+	return this;
+};
+
+
+cloudeebus.Service = function(session, busConnection, name) {
+	this.wampSession = session;
+	this.busConnection = busConnection; 
+	this.name = name;
+	this.agents = [];
+	this.isCreated = false;
+	return this;
+};
+
+
+cloudeebus.Service.prototype.remove = function() {
+	var self = this;
+	
+	var promise = new cloudeebus.Promise(function (resolver) {
+		function ServiceRemovedSuccessCB(serviceName) {
+			try {
+				resolver.fulfill(serviceName, true);
+			}
+			catch (e) {
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method callback exception: " + errorStr);
+				resolver.reject(errorStr, true);
+			}		
+		}
+		
+		function ServiceRemovedErrorCB(error) {
+			var errorStr = cloudeebus.getError(error);
+			cloudeebus.log("Error removing service : " + self.name + ", error: " + errorStr);
+			self.promise.resolver.reject(errorStr, true);
+		}
+		
+		for (var idx in self.agents) {
+			if (self.agents[idx]) {
+				self.removeAgent(self.agents[idx]);
+			}
+		}
+		
+		var arglist = [
+		    self.name
+		    ];
+	
+		// call dbusSend with bus type, destination, object, message and arguments
+		self.wampSession.call("serviceRelease", arglist).then(ServiceRemovedSuccessCB, ServiceRemovedErrorCB);
+	});
+	
+	return promise;
+};
+
+
+cloudeebus.Service.prototype._searchMethod = function(ifName, method, objectJS) {
+
+	var funcToCall = null;
+	
+	// Check if 'objectJS' has a member 'interfaceProxies' with an interface named 'ifName' 
+	// and a method named 'method'
+	if (objectJS.interfaceProxies && objectJS.interfaceProxies[ifName] &&
+		objectJS.interfaceProxies[ifName][method]) {
+		funcToCall = objectJS.interfaceProxies[ifName][method];
+	} else {
+		// retrieve the method directly from 'root' of objectJs
+		funcToCall = objectJS[method];
+	}
+
+	return funcToCall;
+};
+
+
+cloudeebus.Service.prototype._addMethod = function(ifName, method, agent) {
+
+	var service = this;
+	var methodId = this.name + "#" + agent.objectPath + "#" + ifName + "#" + method;
+	var funcToCall = this._searchMethod(ifName, method, agent.jsHdl);
+
+	if (funcToCall == null)
+		cloudeebus.log("Method " + method + " doesn't exist in Javascript object");
+	else {
+		agent.jsHdl.wrapperFunc[method] = function() {
+			var result;
+			var methodId = arguments[0];
+			var callDict = {};
+			// affectation of callDict in eval, otherwise dictionary(='{}') interpreted as block of code by eval
+			eval("callDict = " + arguments[1]);
+			try {
+				result = funcToCall.apply(agent.jsHdl, callDict.args);
+				service._returnMethod(methodId, callDict.callIndex, true, result);
+			}
+			catch (e) {
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method " + ifName + "." + method + " call on " + agent.objectPath + " exception: " + errorStr);
+				service._returnMethod(methodId, callDict.callIndex, false, errorStr);
+			}
+		};
+		agent.jsHdl.methodId[agent.objectPath].push(methodId);
+		this.wampSession.subscribe(methodId, agent.jsHdl.wrapperFunc[method]);
+	}
+};
+
+
+cloudeebus.Service.prototype._addSignal = function(ifName, signal, agent) {
+	var service = this;
+	var methodExist = false;
+
+	if (agent.jsHdl.interfaceProxies && agent.jsHdl.interfaceProxies[ifName])
+		if (agent.jsHdl.interfaceProxies[ifName][signal]) {
+			methodExist = true;
+		} else {
+			agent.jsHdl.interfaceProxies[ifName][signal] = function() {
+				service._emitSignal(agent.objectPath, signal, arguments[0]);
+			};
+		return;
+	}
+		
+	if ((agent.jsHdl[signal] == undefined || agent.jsHdl[signal] == null) && !methodExist) 
+		agent.jsHdl[signal] = function() {
+			service._emitSignal(agent.objectPath, signal, arguments[0]);
+		};
+	else
+		cloudeebus.log("Can not create new method to emit signal '" + signal + "' in object JS this method already exist!");
+};
+
+
+cloudeebus.Service.prototype._createWrapper = function(agent) {
+	var self = this;
+	var parser = new DOMParser();
+	var xmlDoc = parser.parseFromString(agent.xml, "text/xml");
+	var ifXml = xmlDoc.getElementsByTagName("interface");
+	agent.jsHdl.wrapperFunc = [];
+	agent.jsHdl.methodId = [];
+	agent.jsHdl.methodId[agent.objectPath] = [];
+	for (var i=0; i < ifXml.length; i++) {
+		var ifName = ifXml[i].attributes.getNamedItem("name").value;
+		var ifChild = ifXml[i].firstChild;
+		while (ifChild) {
+			if (ifChild.nodeName == "method") {
+				var metName = ifChild.attributes.getNamedItem("name").value;
+				self._addMethod(ifName, metName, agent);
+			}
+			if (ifChild.nodeName == "signal") {
+				var metName = ifChild.attributes.getNamedItem("name").value;
+				self._addSignal(ifName, metName, agent);
+			}
+			ifChild = ifChild.nextSibling;
+		}
+	}
+};
+
+
+cloudeebus.Service.prototype.addAgent = function(agent) {
+	var self = this;
+	
+	var promise = new cloudeebus.Promise(function (resolver) {
+		function ServiceAddAgentSuccessCB(objPath) {
+			try { // calling dbus hook object function for un-translated types
+				self.agents.push(agent);
+				agent.registered = true;
+				resolver.fulfill(objPath, true);
+			}
+			catch (e) {
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method callback exception: " + errorStr);
+				resolver.reject(errorStr, true);
+			}		
+		}
+		
+		function ServiceAddAgenterrorCB(error) {
+			var errorStr = cloudeebus.getError(error);
+			cloudeebus.log("Error adding agent : " + agent.objectPath + ", error: " + errorStr);
+			self.promise.resolver.reject(errorStr, true);
+		}
+		
+		try {
+			self._createWrapper(agent);
+		}
+		catch (e) {
+			var errorStr = cloudeebus.getError(e);
+			cloudeebus.log("Exception creating agent wrapper " + agent.objectPath + " : " + errorStr);
+			resolver.reject(errorStr, true);
+			return;
+		}
+		
+		var arglist = [
+		    agent.objectPath,
+		    agent.xml
+		    ];
+	
+		// call dbusSend with bus type, destination, object, message and arguments
+		self.wampSession.call("serviceAddAgent", arglist).then(ServiceAddAgentSuccessCB, ServiceAddAgenterrorCB);
+	});
+	
+	return promise;
+};
+
+
+cloudeebus.Service.prototype._deleteWrapper = function(agent) {
+	var objJs = agent.jsHdl;
+	if (objJs.methodId[agent.objectPath]) {
+		for (var idx in objJs.methodId[agent.objectPath]) {
+			try {
+				cloudeebus.log("unsubscribe " + objJs.methodId[agent.objectPath][idx]);
+				this.wampSession.unsubscribe(objJs.methodId[agent.objectPath][idx]);
+				objJs.methodId[agent.objectPath][idx] = null;
+			}
+			catch (e) {
+				cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
+			}
+		}
+		delete objJs.methodId[agent.objectPath];
+	}
+};
+
+
+cloudeebus.Service.prototype.removeAgent = function(rmAgent) {
+	var self = this;
+	
+	var promise = new cloudeebus.Promise(function (resolver) {
+		function ServiceRemoveAgentSuccessCB(agent) {
+			try { // calling dbus hook object function for un-translated types
+				self.agents.pop(agent);
+				agent.registered = false;
+				resolver.fulfill(agent, true);
+			}
+			catch (e) {
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method callback exception: " + errorStr);
+				resolver.reject(errorStr, true);
+			}		
+		}
+
+		function ServiceRemoveAgentErrorCB(error) {
+			var errorStr = cloudeebus.getError(error);
+			cloudeebus.log("Error removing agent : " + rmAgent.objectPath + ", error: " + errorStr);
+			self.promise.resolver.reject(errorStr, true);
+		}
+
+		try {
+			self._deleteWrapper(rmAgent);
+		}
+		catch (e) {
+			var errorStr = cloudeebus.getError(e);
+			cloudeebus.log("Exception removing wrapper of agent " + rmAgent.objectPath + " : " + errorStr);
+			errorCB(errorStr);
+		}
+		
+		var arglist = [
+		    rmAgent.objectPath
+		    ];
+	
+		// call dbusSend with bus type, destination, object, message and arguments
+		self.wampSession.call("serviceDelAgent", arglist).then(ServiceRemoveAgentSuccessCB, ServiceRemoveAgentErrorCB);
+	});
+	
+	return promise;
+};
+
+
+cloudeebus.Service.prototype._returnMethod = function(methodId, callIndex, success, result, successCB, errorCB) {
+	var arglist = [
+	    methodId,
+	    callIndex,
+	    success,
+	    result
+	    ];
+
+	this.wampSession.call("returnMethod", arglist).then(successCB, errorCB);
+};
+
+
+cloudeebus.Service.prototype._emitSignal = function(objectPath, signalName, result, successCB, errorCB) {
+	var arglist = [
+	    objectPath,
+	    signalName,
+	    result
+	    ];
+
+	this.wampSession.call("emitSignal", arglist).then(successCB, errorCB);
+};
+
+
+
+/*****************************************************************************/
+
+function _processWrappers(wrappers, value) {
+	for (var i=0; i<wrappers.length; i++)
+		wrappers[i](value);
+}
+
+
+function _processWrappersAsync(wrappers, value) {
+	var taskid = -1;
+	function processAsyncOnce() {
+		_processWrappers(wrappers, value);
+		clearInterval(taskid);
+	}
+	taskid = setInterval(processAsyncOnce, 200);
+}
+
+
+
+/*****************************************************************************/
+
+cloudeebus.PromiseResolver = function(promise) {
+	this.promise = promise;
+	this.resolved = null;
+    return this;
+};
+
+
+cloudeebus.PromiseResolver.prototype.resolve = function(value, sync) {
+	if (this.resolved)
+		return;
+	
+	var then = (value && value.then && value.then.apply) ? value.then : null;
+	if (then) {
+		var self = this;		
+		var fulfillCallback = function(arg) {
+			self.resolve(arg, true);
+		};	
+		var rejectCallback = function(arg) {
+			self.reject(arg, true);
+		};
+		try {
+			then.apply(value, [fulfillCallback, rejectCallback]);
+		}
+		catch (e) {
+			this.reject(cloudeebus.getError(e), true);
+		}
+	}
+	
+	this.fulfill(value, sync);
+};
+
+
+cloudeebus.PromiseResolver.prototype.fulfill = function(value, sync) {
+	if (this.resolved)
+		return;
+	
+	var promise = this.promise;
+	promise.state = "fulfilled";
+	promise.result = value;
+	
+	this.resolved = true;
+	if (sync)
+		_processWrappers(promise._fulfillWrappers, value);
+	else
+		_processWrappersAsync(promise._fulfillWrappers, value);
+};
+
+
+cloudeebus.PromiseResolver.prototype.reject = function(value, sync) {
+	if (this.resolved)
+		return;
+	
+	var promise = this.promise;
+	promise.state = "rejected";
+	promise.result = value;
+	
+	this.resolved = true;
+	if (sync)
+		_processWrappers(promise._rejectWrappers, value);
+	else
+		_processWrappersAsync(promise._rejectWrappers, value);
+};
+
+
 
 /*****************************************************************************/
 
-cloudeebus.Request = function(proxy, onsuccess, onerror) {
-	this.proxy = proxy; 
-	this.error = null;
+cloudeebus.Promise = function(init) {
+	this.state = "pending";
 	this.result = null;
-	this.onsuccess = onsuccess;
-	this.onerror = onerror;
+	this._fulfillWrappers = [];
+	this._rejectWrappers = [];
+	this.resolver = new cloudeebus.PromiseResolver(this);
+	if (init) {
+		try {
+			init.apply(this, [this.resolver]);
+		}
+		catch (e) {
+			this.resolver.reject(cloudeebus.getError(e), true);
+		}
+	}
     return this;
 };
 
-cloudeebus.Request.prototype.then = function(onsuccess, onerror) {
-	this.onsuccess = onsuccess;
-	this.onerror = onerror;
-	return this;
+
+cloudeebus.Promise.prototype.appendWrappers = function(fulfillWrapper, rejectWrapper) {
+	if (fulfillWrapper)
+		this._fulfillWrappers.push(fulfillWrapper);
+	if (rejectWrapper)
+		this._rejectWrappers.push(rejectWrapper);
+	if (this.state == "fulfilled")
+		_processWrappersAsync(this._fulfillWrappers, this.result);
+	if (this.state == "rejected")
+		_processWrappersAsync(this._rejectWrappers, this.result);
+};
+
+
+cloudeebus.Promise.prototype.then = function(fulfillCB, rejectCB) {
+	var promise = new cloudeebus.Promise();
+	var resolver = promise.resolver;
+	var fulfillWrapper, rejectWrapper;
+	
+	if (fulfillCB)
+		fulfillWrapper = function(arg) {
+			try {
+				var value = fulfillCB.apply(promise, [arg]);
+				resolver.resolve(value, true);
+			}
+			catch (e) {
+				resolver.reject(cloudeebus.getError(e), true);
+			}
+		};
+	else
+		fulfillWrapper = function(arg) {
+			resolver.fulfill(arg, true);
+		};
+	
+	if (rejectCB)
+		rejectWrapper = function(arg) {
+			try {
+				var value = rejectCB.apply(promise, [arg]);
+				resolver.resolve(value, true);
+			}
+			catch (e) {
+				resolver.reject(cloudeebus.getError(e), true);
+			}
+		};
+	else
+		rejectWrapper = function(arg) {
+			resolver.reject(arg, true);
+		};
+	
+	this.appendWrappers(fulfillWrapper,rejectWrapper);
+	return promise;
+};
+
+
+cloudeebus.Promise.prototype["catch"] = function(rejectCB) {
+	return this.then(undefined,rejectCB);
+};
+
+
+cloudeebus.Promise.prototype.done = function(fulfillCB, rejectCB) {
+	this.appendWrappers(fulfillCB,rejectCB);
+};
+
+
+cloudeebus.Promise.resolve = function(value) {
+	var promise = new cloudeebus.Promise();
+	promise.resolver.resolve(value);
+	return promise;
+};
+
+
+cloudeebus.Promise.fulfill = function(value) {
+	var promise = new cloudeebus.Promise();
+	promise.resolver.fulfill(value);
+	return promise;
+};
+
+
+cloudeebus.Promise.reject = function(value) {
+	var promise = new cloudeebus.Promise();
+	promise.resolver.reject(value);
+	return promise;
+};
+
+
+cloudeebus.Promise.any = function() {
+	var promise = new cloudeebus.Promise();
+	var resolver = promise.resolver;
+	var fulfillCallback = function(arg) {
+		resolver.resolve(arg, true);
+	};
+	var rejectCallback = function(arg) {
+		resolver.reject(arg, true);
+	};
+	if (arguments.length == 0)
+		resolver.resolve(undefined, true);
+	else
+		for (i in arguments) 
+			Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
+	return promise;
+};
+
+
+cloudeebus.Promise.every = function() {
+	var promise = new cloudeebus.Promise();
+	var resolver = promise.resolver;
+	var index = 0;
+	var countdown = arguments.length;
+	var args = new Array(countdown);
+	var rejectCallback = function(arg) {
+		resolver.reject(arg, true);
+	};
+	if (arguments.length == 0)
+		resolver.resolve(undefined, true);
+	else
+		for (i in arguments) {
+			var fulfillCallback = function(arg) {
+				args[index] = arg;
+				countdown--;
+				if (countdown == 0)
+					resolver.resolve(args, true);
+			};
+			index++;
+			Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
+		}
+	
+	return promise;
+};
+
+
+cloudeebus.Promise.some = function() {
+	var promise = new cloudeebus.Promise();
+	var resolver = promise.resolver;
+	var index = 0;
+	var countdown = arguments.length;
+	var args = new Array(countdown);
+	var fulfillCallback = function(arg) {
+		resolver.resolve(arg, true);
+	};
+	if (arguments.length == 0)
+		resolver.resolve(undefined, true);
+	else
+		for (i in arguments) {
+			var rejectCallback = function(arg) {
+				args[index] = arg;
+				countdown--;
+				if (countdown == 0)
+					resolver.reject(args, true);
+			};
+			index++;
+			Promise.resolve(arguments[i]).appendWrappers(fulfillCallback,rejectCallback);
+		}
+	
+	return promise;
 };
 
 
@@ -210,17 +822,20 @@ cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 			while (ifChild) {
 				if (ifChild.nodeName == "method") {
 					var nArgs = 0;
+					var signature = "";
 					var metChild = ifChild.firstChild;
 					while (metChild) {
 						if (metChild.nodeName == "arg" &&
-							metChild.attributes.getNamedItem("direction").value == "in")
+							metChild.attributes.getNamedItem("direction").value == "in") {
+								signature += metChild.attributes.getNamedItem("type").value;
 								nArgs++;
+						}
 						metChild = metChild.nextSibling;
 					}
 					var metName = ifChild.attributes.getNamedItem("name").value;
 					if (!self[metName])
-						self._addMethod(ifName, metName, nArgs);
-					self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs);
+						self._addMethod(ifName, metName, nArgs, signature);
+					self.interfaceProxies[ifName]._addMethod(ifName, metName, nArgs, signature);
 				}
 				else if (ifChild.nodeName == "property") {
 					if (!hasProperties)
@@ -248,81 +863,73 @@ cloudeebus.ProxyObject.prototype._introspect = function(successCB, errorCB) {
 };
 
 
-cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs) {
+cloudeebus.ProxyObject.prototype._addMethod = function(ifName, method, nArgs, signature) {
 
 	var self = this;
 	
 	self[method] = function() {
-		if (arguments.length < nArgs || arguments.length > nArgs + 2)
-			throw "Error: method " + method + " takes " + nArgs + " parameters, got " + arguments.length + ".";
 		var args = [];
-		var successCB = null;
-		var errorCB = null;
 		for (var i=0; i < nArgs; i++ )
 			args.push(arguments[i]);
-		if (arguments.length > nArgs)
-			successCB = arguments[nArgs];
-		if (arguments.length > nArgs + 1)
-			errorCB = arguments[nArgs + 1];
-		self.callMethod(ifName, method, args).then(successCB, errorCB);
-	};
-	
+		return self.callMethod(ifName, method, args, signature);
+	};	
 };
 
-cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, successCB, errorCB) {
+
+cloudeebus.ProxyObject.prototype.callMethod = function(ifName, method, args, signature) {
 	
 	var self = this;
-	var request = new cloudeebus.Request(this, successCB, errorCB);
-
-	function callMethodSuccessCB(str) {
-		request.result = eval(str);
-		if (request.onsuccess) {
+	
+	var promise = new cloudeebus.Promise(function (resolver) {
+		function callMethodSuccessCB(str) {
 			try { // calling dbus hook object function for un-translated types
-				request.onsuccess.apply(request.proxy, request.result);
+				var result = eval(str);
+				resolver.fulfill(result[0], true);
 			}
 			catch (e) {
-				cloudeebus.log("Method callback exception: " + e);
-				if (request.onerror)
-					request.onerror(e);
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Method callback exception: " + errorStr);
+				resolver.reject(errorStr, true);
 			}
 		}
-	}
 
-	function callMethodErrorCB(error) {
-		cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + error.desc);
-		request.error = error.desc;
-		if (request.onerror)
-			request.onerror(request.error);
-	}
-
-	var arglist = [
-		self.busConnection.name,
-		self.busName,
-		self.objectPath,
-		ifName,
-		method,
-		JSON.stringify(args)
-	];
+		function callMethodErrorCB(error) {
+			var errorStr = cloudeebus.getError(error);
+			cloudeebus.log("Error calling method: " + method + " on object: " + self.objectPath + " : " + errorStr);
+			resolver.reject(errorStr, true);
+		}
 
-	// call dbusSend with bus type, destination, object, message and arguments
-	self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
-	return request;
+		var arglist = [
+			self.busConnection.name,
+			self.busName,
+			self.objectPath,
+			ifName,
+			method,
+			JSON.stringify(args)
+		];
+
+		// call dbusSend with bus type, destination, object, message and arguments
+		self.wampSession.call("dbusSend", arglist).then(callMethodSuccessCB, callMethodErrorCB);
+	});
+	
+	return promise;
 };
 
 
-cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, successCB, errorCB) {
+cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, handlerCB, errorCB) {
 	
 	var self = this; 
 
 	function signalHandler(id, data) {
-		if (successCB) {
+		if (handlerCB) {
 			try { // calling dbus hook object function for un-translated types
-				successCB.apply(self, eval(data));
+				handlerCB.apply(self, eval(data));
 			}
 			catch (e) {
-				cloudeebus.log("Signal handler exception: " + e);
+				var errorStr = cloudeebus.getError(e);
+				cloudeebus.log("Signal handler exception: " + errorStr);
 				if (errorCB)
-					errorCB(e);
+					errorCB(errorStr);
 			}
 		}
 	}
@@ -332,14 +939,15 @@ cloudeebus.ProxyObject.prototype.connectToSignal = function(ifName, signal, succ
 			self.wampSession.subscribe(str, signalHandler);
 		}
 		catch (e) {
-			cloudeebus.log("Subscribe error: " + e);
+			cloudeebus.log("Subscribe error: " + cloudeebus.getError(e));
 		}
 	}
 
 	function connectToSignalErrorCB(error) {
-		cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + error.desc);
+		var errorStr = cloudeebus.getError(error);
+		cloudeebus.log("Error connecting to signal: " + signal + " on object: " + self.objectPath + " : " + errorStr);
 		if (errorCB)
-			errorCB(error.desc);
+			errorCB(errorStr);
 	}
 
 	var arglist = [
@@ -360,6 +968,6 @@ cloudeebus.ProxyObject.prototype.disconnectSignal = function(ifName, signal) {
 		this.wampSession.unsubscribe(this.busConnection.name + "#" + this.busName + "#" + this.objectPath + "#" + ifName + "#" + signal);
 	}
 	catch (e) {
-		cloudeebus.log("Unsubscribe error: " + e);
+		cloudeebus.log("Unsubscribe error: " + cloudeebus.getError(e));
 	}
 };