/// <summary>
/// Do the stuff required to join the session.
/// </summary>
/// <returns>True if successfully joined the session.</returns>
private async Task <bool> JoinSessionAsync()
{
bool returnValue = true;
SessionOpts opts = new SessionOpts(
TrafficType.TRAFFIC_MESSAGES,
false,
ProximityType.PROXIMITY_ANY,
TransportMaskType.TRANSPORT_ANY);
SessionOpts[] opts_out = new SessionOpts[1];
JoinSessionResult result = await this.Bus.JoinSessionAsync(
App.ServiceName,
App.ServicePort,
this.Listeners,
opts,
opts_out,
null);
if (result.Status == QStatus.ER_OK)
{
App.OutputLine("Successfully joined session.");
}
else
{
string errorMessage = string.Format("Join session failed with error {0:X}.", result.Status);
App.OutputLine(errorMessage);
returnValue = false;
}
return(returnValue);
}
public async void OnFoundMediaServer()
{
if (_sessionId == 0)
{
/*
* Join the session - if we need a specific qos we would check it here.
*/
SessionOpts opts = new SessionOpts(TrafficType.TRAFFIC_MESSAGES, true, ProximityType.PROXIMITY_ANY, TransportMaskType.TRANSPORT_ANY);
SessionOpts[] opts_out = new SessionOpts[1];
JoinSessionResult result = await _bus.JoinSessionAsync(MEDIA_SERVER_NAME, SESSION_PORT, _listeners, opts, opts_out, null);
_sessionId = result.SessionId;
ConnectToServer();
}
}
/// <summary>
/// Joins a session with specified nameprefix using specs provided
/// </summary>
/// <param name="name">Name prefix or well-known name to join session with</param>
/// <param name="sessionPort">Port for session</param>
/// <param name="opts">Session Opts for session</param>
public async void DoJoinAsync(string name, uint sessionPort, SessionOpts opts)
{
SessionOpts[] optsOut = new SessionOpts[1];
JoinSessionResult joinResult = await this.busAtt.JoinSessionAsync(name, (ushort)sessionPort, (SessionListener)this.busListener, opts, optsOut, null);
QStatus status = joinResult.Status;
if (QStatus.ER_OK == status)
{
this.mainPage.Output("BusAttachment.JoinSessionAsync(" + name + ", " + sessionPort + ", ...) succeeded with id=" + joinResult.SessionId);
lock (this.sessionMap)
{
this.sessionMap.Add(joinResult.SessionId, new SessionInfo(joinResult.SessionId, new SessionPortInfo(sessionPort, name, opts)));
}
}
else
{
this.mainPage.Output("BusAttachment.JoinSessionAsync(" + name + ", " + sessionPort + ", ...) failed: " + status.ToString());
}
}
/// <summary>
/// Do the stuff required to join the session.
/// </summary>
/// <returns>True if successfully joined the session.</returns>
private async Task <bool> JoinSessionAsync()
{
bool returnValue = true;
SessionOpts opts = new SessionOpts(
ClientGlobals.SessionProps.TrType,
ClientGlobals.SessionProps.IsMultiPoint,
ClientGlobals.SessionProps.PrType,
ClientGlobals.SessionProps.TmType);
SessionOpts[] opts_out = new SessionOpts[1];
App app = Application.Current as App;
JoinSessionResult result = await this.Bus.JoinSessionAsync(
ClientGlobals.ServiceName,
ClientGlobals.SessionProps.SessionPort,
app.Listeners,
opts,
opts_out,
null);
string message =
string.Format("Join Session status = {0}.", result.Status.ToString());
App.OutputLine(message);
if (QStatus.ER_OK == result.Status)
{
this.SessionId = result.SessionId;
message =
string.Format("SessionId='{0}'.", result.SessionId);
App.OutputLine(message);
}
else
{
string errorMessage = string.Format("Join session failed with error {0:X}.", result.Status);
App.OutputLine(errorMessage);
returnValue = false;
}
return(returnValue);
}
/// <summary>
/// Join an existing channel with the given name.
/// </summary>
/// <param name="name">The name of the channel to join.</param>
private async void JoinChannel(string name)
{
try
{
this.DisplayStatus("Joining chat session: " + name);
string wellKnownName = this.MakeWellKnownName(name);
SessionOpts opts = new SessionOpts(TrafficType.TRAFFIC_MESSAGES, true, ProximityType.PROXIMITY_ANY, alljoynTransports);
SessionOpts[] opts_out = new SessionOpts[1];
this.channelJoined = name;
JoinSessionResult result = await this.bus.JoinSessionAsync(
wellKnownName,
ContactPort,
this.busListeners,
opts,
opts_out,
null);
if (result.Status == QStatus.ER_OK)
{
this.SessionId = result.SessionId;
this.DisplayStatus("Join chat session " + this.SessionId + " successfully");
await this.coreDispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() => { this.JoinChannelButton.Content = "Leave Channel"; });
}
else
{
this.DisplayStatus("Join chat session " + result.SessionId + " failed. Error: " + result.Status);
}
}
catch (Exception ex)
{
QStatus stat = AllJoynException.GetErrorCode(ex.HResult);
string errMsg = AllJoynException.GetErrorMessage(ex.HResult);
DisplayStatus("JoinChannel Error : " + errMsg);
}
}
/// <summary>
/// Connects to the bus and registers a signal handler for when the 'name' property changes.
/// </summary>
/// <param name="sender">UI control which signaled the click event.</param>
/// <param name="e">arguments associated with the click event.</param>
private void Button_RunClick(object sender, RoutedEventArgs e)
{
if (busAtt == null)
{
Task task = new Task(async() =>
{
try
{
busAtt = new BusAttachment("SignalConsumerApp", true, 4);
// create and activate the interface
InterfaceDescription[] interfaceDescription = new InterfaceDescription[1];
busAtt.CreateInterface(SignalConsumerGlobals.InterfaceName, interfaceDescription, false);
interfaceDescription[0].AddSignal("nameChanged", "s", "newName", (byte)0, string.Empty);
interfaceDescription[0].AddProperty("name", "s", (byte)PropAccessType.PROP_ACCESS_RW);
interfaceDescription[0].Activate();
busListener = new SignalConsumerBusListener(busAtt, foundNameEvent);
OutputLine("BusAttachment and BusListener Created.");
busAtt.RegisterBusListener(busListener);
OutputLine("BusListener Registered.");
busAtt.Start();
busAtt.ConnectAsync(SignalConsumerGlobals.ConnectSpec).AsTask().Wait();
OutputLine("Bundled Daemon Registered.");
OutputLine("BusAttachment Connected to " + SignalConsumerGlobals.ConnectSpec + ".");
busAtt.FindAdvertisedName(SignalConsumerGlobals.WellKnownServiceName);
foundNameEvent.WaitOne();
/* Configure session properties and request a session with device with wellKnownName */
SessionOpts sessionOpts = new SessionOpts(
SignalConsumerGlobals.SessionProps.TrType,
SignalConsumerGlobals.SessionProps.IsMultiPoint,
SignalConsumerGlobals.SessionProps.PrType,
SignalConsumerGlobals.SessionProps.TmType);
SessionOpts[] sessionOptsOut = new SessionOpts[1];
OutputLine("Requesting a session with the well known service name.");
JoinSessionResult joinResult = await busAtt.JoinSessionAsync(
SignalConsumerGlobals.WellKnownServiceName,
SignalConsumerGlobals.SessionProps.SessionPort,
busListener,
sessionOpts,
sessionOptsOut,
null);
if (QStatus.ER_OK == joinResult.Status)
{
OutputLine("Join Session was successful (sessionId=" + joinResult.SessionId + ").");
busAtt.AddMatch("type='signal',interface='org.alljoyn.Bus.signal_sample',member='nameChanged'");
OutputLine("Subscribed to the 'nameChanged' signal.");
}
else
{
OutputLine("Join Session was unsuccessful.");
}
}
catch (Exception ex)
{
OutputLine("Errors were produced while establishing the application.");
QStatus status = AllJoynException.GetErrorCode(ex.HResult);
busAtt = null;
}
});
task.Start();
}
}
/// <summary>
/// Connects to the bus, finds the service and sets the 'name' property to the value
/// specified by the user.
/// </summary>
/// <param name="sender">UI control which signaled the click event.</param>
/// <param name="e">Arguments associated with the click event.</param>
private void Button_RunNameChangeClient(object sender, RoutedEventArgs e)
{
if (this.TextBox_Input.Text == string.Empty)
{
this.OutputLine("You must provide an argument to run Name Change Client!");
}
if (!runningClient && this.TextBox_Input.Text != string.Empty)
{
string newName = this.TextBox_Input.Text;
Task task = new Task(async() =>
{
try
{
runningClient = true;
busAtt = new BusAttachment("NameChangeApp", true, 4);
OutputLine("BusAttachment Created.");
NameChangeBusListener busListener = new NameChangeBusListener(busAtt, foundNameEvent);
busAtt.RegisterBusListener(busListener);
OutputLine("BusListener Registered.");
/* Create and register the bundled daemon. The client process connects to daemon over tcp connection */
busAtt.Start();
await busAtt.ConnectAsync(NameChangeGlobals.ConnectSpec);
OutputLine("Bundled Daemon Registered.");
OutputLine("BusAttachment Connected to " + NameChangeGlobals.ConnectSpec + ".");
busAtt.FindAdvertisedName(NameChangeGlobals.WellKnownServiceName);
foundNameEvent.WaitOne();
/* Configure session properties and request a session with device with wellKnownName */
SessionOpts sOpts = new SessionOpts(
NameChangeGlobals.SessionProps.TrType,
NameChangeGlobals.SessionProps.IsMultiPoint,
NameChangeGlobals.SessionProps.PrType,
NameChangeGlobals.SessionProps.TmType);
SessionOpts[] sOptsOut = new SessionOpts[1];
JoinSessionResult joinResults = await busAtt.JoinSessionAsync(
NameChangeGlobals.WellKnownServiceName,
NameChangeGlobals.SessionProps.SessionPort,
busListener,
sOpts,
sOptsOut,
null);
QStatus status = joinResults.Status;
if (QStatus.ER_OK == status)
{
this.OutputLine("Join Session was successful (sessionId=" + joinResults.SessionId + ").");
}
else
{
this.OutputLine("Join Session was unsuccessful.");
}
ProxyBusObject pbo = new ProxyBusObject(busAtt, NameChangeGlobals.WellKnownServiceName, NameChangeGlobals.ServicePath, sessionId);
if (QStatus.ER_OK == status)
{
IntrospectRemoteObjectResult introResult = await pbo.IntrospectRemoteObjectAsync(null);
status = introResult.Status;
if (QStatus.ER_OK == status)
{
this.OutputLine("Introspection of the service object was successful.");
}
else
{
this.OutputLine("Introspection of the service object was unsuccessful.");
}
}
if (QStatus.ER_OK == status)
{
object[] obj = new object[] { newName };
MsgArg msg = new MsgArg("s", obj);
SetPropertyResult setResult = await pbo.SetPropertyAsync(NameChangeGlobals.InterfaceName, "name", msg, null, 2000);
}
TearDown();
}
catch (Exception ex)
{
QStatus s = AllJoynException.GetErrorCode(ex.HResult);
OutputLine("Error: " + ex.ToString());
runningClient = false;
}
});
task.Start();
}
}
/// <summary>
/// Run the client stress op which stresses the bus attachment in a client type
/// configuration which find the well-known service name and calls the 'cat'
/// method
/// </summary>
/// <param name="isMultipoint">True if operation uses multipoint sessions</param>
private void RunClient(bool isMultipoint)
{
try
{
ClientBusListener clientBusListener = new ClientBusListener(this.busAtt, this, this.foundName);
this.busAtt.FindAdvertisedName(ServiceName);
this.DebugPrint("Looking for WKN : " + ServiceName);
this.foundName.WaitOne(12000);
SessionOpts optsIn = new SessionOpts(
TrafficType.TRAFFIC_MESSAGES,
isMultipoint,
ProximityType.PROXIMITY_ANY,
TransportMaskType.TRANSPORT_ANY);
SessionOpts[] optsOut = new SessionOpts[1];
Task <JoinSessionResult> joinTask = this.busAtt.JoinSessionAsync(
this.DiscoveredName,
ServicePort,
(SessionListener)clientBusListener,
optsIn,
optsOut,
null).AsTask <JoinSessionResult>();
joinTask.Wait();
JoinSessionResult joinResult = joinTask.Result;
QStatus status = joinResult.Status;
ProxyBusObject proxyBusObj = null;
if (QStatus.ER_OK == status)
{
this.DebugPrint("JoinSession with " + this.DiscoveredName + " was successful (sessionId=" + joinResult.SessionId + ")");
proxyBusObj = new ProxyBusObject(this.busAtt, this.DiscoveredName, ServicePath, joinResult.SessionId);
Task <IntrospectRemoteObjectResult> introTask = proxyBusObj.IntrospectRemoteObjectAsync(null).AsTask <IntrospectRemoteObjectResult>();
introTask.Wait();
IntrospectRemoteObjectResult introResult = introTask.Result;
status = introResult.Status;
if (QStatus.ER_OK == status)
{
this.DebugPrint("Introspection of the service was successfull");
MsgArg hello = new MsgArg("s", new object[] { "Hello " });
MsgArg world = new MsgArg("s", new object[] { "World!" });
InterfaceMember catMethod = proxyBusObj.GetInterface(InterfaceName).GetMethod("cat");
byte flags = (byte)0;
Task <MethodCallResult> catTask = proxyBusObj.MethodCallAsync(catMethod, new MsgArg[] { hello, world }, null, 5000, flags).AsTask <MethodCallResult>();
catTask.Wait();
MethodCallResult catResult = catTask.Result;
if (catResult.Message.Type == AllJoynMessageType.MESSAGE_METHOD_RET)
{
this.DebugPrint(this.DiscoveredName + ".cat ( path=" + ServicePath + ") returned \"" + catResult.Message.GetArg(0).Value.ToString() + "\"");
}
else
{
this.DebugPrint("Method call on " + this.DiscoveredName + ".cat failed (ReturnType=" + catResult.Message.Type.ToString() + ")");
}
}
else
{
this.DebugPrint("Introspection was unsuccessful: " + status.ToString());
}
}
else
{
this.DebugPrint("Join Session was unsuccessful: " + status.ToString());
}
this.busAtt.CancelFindAdvertisedName(ServiceName);
this.busAtt.UnregisterBusListener(clientBusListener);
this.DebugPrint("Successfully unraveled the client operation");
}
catch (ArgumentNullException ex)
{
this.DebugPrint(">>>> TIMEOUT, Client could not find WKN >>>>");
}
catch (Exception ex)
{
var errMsg = AllJoynException.GetErrorMessage(ex.HResult);
this.DebugPrint(">>>> Client Execution Error >>>> " + errMsg);
}
}
/// <summary>
/// Connects to the bus, finds the service and calls the 'cat' with the two
/// arguments "Hello " and "World!"
/// </summary>
/// <param name="sender">UI control which signaled the click event</param>
/// <param name="e">arguments associated with the click event</param>
private void Button_RunClick(object sender, RoutedEventArgs e)
{
if (!runningClient)
{
Task task = new Task(async() =>
{
try
{
runningClient = true;
busAtt = new BusAttachment("ClientApp", true, 4);
this.OutputLine("BusAttachment Created.");
BasicClientBusListener basicClientBusListener = new BasicClientBusListener(busAtt, foundNameEvent);
busAtt.RegisterBusListener(basicClientBusListener);
this.OutputLine("BusListener Registered.");
/* Create and register the bundled daemon. The client process connects to daemon over tcp connection */
busAtt.Start();
await busAtt.ConnectAsync(BasicClientGlobals.ConnectSpec);
this.OutputLine("Bundled Daemon Registered.");
this.OutputLine("BusAttachment Connected to " + BasicClientGlobals.ConnectSpec + ".");
busAtt.FindAdvertisedName(BasicClientGlobals.WellKnownServiceName);
foundNameEvent.WaitOne();
/* Configure session properties and request a session with device with wellKnownName */
SessionOpts sessionOpts = new SessionOpts(
BasicClientGlobals.SessionProps.TrType,
BasicClientGlobals.SessionProps.IsMultiPoint,
BasicClientGlobals.SessionProps.PrType,
BasicClientGlobals.SessionProps.TmType);
SessionOpts[] sOptsOut = new SessionOpts[1];
JoinSessionResult joinResults = await busAtt.JoinSessionAsync(
BasicClientGlobals.WellKnownServiceName,
BasicClientGlobals.SessionProps.SessionPort,
basicClientBusListener,
sessionOpts,
sOptsOut,
null);
QStatus status = joinResults.Status;
if (QStatus.ER_OK != status)
{
this.OutputLine("Joining a session with the Service was unsuccessful.");
}
else
{
this.OutputLine("Join Session was successful (sessionId=" + joinResults.SessionId + ").");
}
// Create the proxy for the service interface by introspecting the service bus object
ProxyBusObject proxyBusObject = new ProxyBusObject(busAtt, BasicClientGlobals.WellKnownServiceName, BasicClientGlobals.ServicePath, 0);
if (QStatus.ER_OK == status)
{
IntrospectRemoteObjectResult introResult = await proxyBusObject.IntrospectRemoteObjectAsync(null);
status = introResult.Status;
if (QStatus.ER_OK != status)
{
this.OutputLine("Introspection of the service bus object failed.");
}
else
{
this.OutputLine("Introspection of the service bus object was successful.");
}
}
if (QStatus.ER_OK == status)
{
// Call 'cat' method with the two string to be concatenated ("Hello" and " World!")
MsgArg[] catMe = new MsgArg[2];
catMe[0] = new MsgArg("s", new object[] { "Hello" });
catMe[1] = new MsgArg("s", new object[] { " World!" });
InterfaceDescription interfaceDescription = proxyBusObject.GetInterface(BasicClientGlobals.InterfaceName);
InterfaceMember interfaceMember = interfaceDescription.GetMember("cat");
this.OutputLine("Calling the 'cat' method of the service with args 'Hello' and ' World!'");
MethodCallResult callResults = await proxyBusObject.MethodCallAsync(interfaceMember, catMe, null, 100000, 0);
Message msg = callResults.Message;
if (msg.Type == AllJoynMessageType.MESSAGE_METHOD_RET)
{
string strRet = msg.GetArg(0).Value as string;
this.OutputLine("Sender '" + msg.Sender + "' returned the value '" + strRet + "'");
}
else
{
this.OutputLine("The 'cat' method call produced errors of type: " + msg.Type.ToString());
}
}
TearDown();
}
catch (Exception ex)
{
QStatus s = AllJoynException.GetErrorCode(ex.HResult);
}
});
task.Start();
}
}
