public static async Task <bool> GetCallDurationAsync()
{
VoipPhoneCall call = VoipCall;
AppServiceRequest request = AppRequest;
AppServiceDeferral deferal = AppRequestDeferal;
TimeSpan timeSpan = new TimeSpan();
if (call != null)
{
call.NotifyCallActive();
timeSpan = DateTimeOffset.Now.Subtract(call.StartTime);
}
if (request != null)
{
ValueSet response = new ValueSet();
response[BackgroundOperation.Result] = timeSpan.ToString();
await request.SendResponseAsync(response);
}
if (deferal != null)
{
deferal.Complete();
}
return(true);
}
public static async void EndCallAsync()
{
AppServiceRequest request = AppRequest;
AppServiceDeferral deferal = AppRequestDeferal;
try
{
EndCall();
if (request != null)
{
ValueSet response = new ValueSet();
response[BackgroundOperation.Result] = (int)OperationResult.Succeeded;
await request.SendResponseAsync(response);
}
if (deferal != null)
{
deferal.Complete();
}
}
finally
{
AppRequest = null;
AppRequestDeferal = null;
}
}
/// <summary>
/// Invokes the method from the message on the handler object and sends back the return value
/// </summary>
public static async void HandleRequest(AppServiceRequest request, object handler, string message)
{
var invoker = new ChannelInvoker(handler);
var result = invoker.ProcessRequest(message);
await SendResponse(request, result);
}
/// <summary>
/// Serializes and sends the response for the AppServiceRequest
/// </summary>
private static async Task SendResponse(AppServiceRequest request, InvocationResult result)
{
if (result.Result == null)
{
return;
}
object response = null;
var asyncAction = result.Result as IAsyncAction;
if (asyncAction != null)
{
await asyncAction;
}
else
{
var awaitAsyncOperationMethod = typeof(AppServiceChannelHelper).GetRuntimeMethods()
.Single(method => method.Name == nameof(AwaitAsyncOperation));
var awaitMethod = awaitAsyncOperationMethod.MakeGenericMethod(result.ResultType.GenericTypeArguments[0]);
response = awaitMethod.Invoke(null, new[] { result.Result });
}
//Send a new ValueSet with the key as a random string and the value as the serialized result
await request.SendResponseAsync(new ValueSet
{
{ Guid.NewGuid().ToString(), JsonConvert.SerializeObject(response) }
});
}
public ASRequest(AppServiceRequest internalRequest, AppServiceDeferral internalRequestDeferral,
ASConnection connection)
{
_connection = connection;
_internalRequest = internalRequest;
_internalRequestDeferral = internalRequestDeferral;
Message = _connection._serializer.DeserializeFromValueSet(internalRequest.Message);
}
private static async Task SendResponse(AppServiceRequest request, InvocationResult result)
{
if (result.Result == null) return;
await request.SendResponseAsync(new ValueSet
{
{Guid.NewGuid().ToString(), JsonConvert.Serialize(result.Result)}
});
}
public async Task HandleDeferral(AppServiceDeferral deferral, AppServiceRequest request)
{
StartupTask.WriteTelemetryEvent("Action_AppService");
ValueSet returnMessage = new ValueSet();
await request.SendResponseAsync(returnMessage);
deferral.Complete();
}
/// <summary>
/// Serializes and sends the response for the AppServiceRequest
/// </summary>
private static async Task SendResponse(AppServiceRequest request, InvocationResult result)
{
if (result.Result == null) return;
//Send a new ValueSet with the key as a random string and the value as the serialized result
await request.SendResponseAsync(new ValueSet
{
{Guid.NewGuid().ToString(), JsonConvert.Serialize(result.Result)}
});
}
internal static async Task <RespondResult> SendResponseAsync(this AppServiceRequest request, object message,
IObjectSerializer serializer)
{
var valueSet = serializer.SerializeToValueSet(message);
var internalStatus = await request.SendResponseAsync(valueSet);
var success = internalStatus == AppServiceResponseStatus.Success;
return(new RespondResult(success ? ResponseStatus.Success : ResponseStatus.Failure, internalStatus));
}
private static void SendOrders(AppServiceRequest request, string connectionString)
{
Console.WriteLine("Received GetOrders request. Working on it...");
var json = GetOrdersAsJson(connectionString);
ValueSet returnValues = new ValueSet();
Console.WriteLine("Adding return value. {0} : {1}", "response", json);
returnValues.Add("response", json);
Console.WriteLine("Returning response with orders as json");
request.SendResponseAsync(returnValues).Completed += delegate { };
}
//[DllImport("user32.dll")]
//static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
//private static void Minimize()
//{
// var hwnd = Process.GetCurrentProcess().MainWindowHandle;
// ShowWindow(hwnd, 2);
//}
//[DllImport("user32.dll")]
//static extern bool PostMessage(IntPtr hWnd, uint Msg, int wParam, int lParam);
//private static void ExitConoleApp()
//{
// Console.WriteLine("Exiting SQL Bridge");
// var hwnd = Process.GetCurrentProcess().MainWindowHandle;
// const uint WM_CHAR = 0x0102;
// PostMessage(hwnd, WM_CHAR, 13, 0);
//}
#endregion
private static void SendAllProductsAsync(AppServiceRequest request)
{
Console.WriteLine("Received GetProducts request. Working on it...");
var json = GetProductsAsJson();
ValueSet returnValues = new ValueSet();
//Console.WriteLine("Adding return value. {0} : {1}", "response", json);
returnValues.Add("response", json);
Console.WriteLine("Returning response with products as json");
request.SendResponseAsync(returnValues).Completed += delegate { };
}
public static IAsyncOperation <AppServiceResponseStatus> SendResponseAsync(this AppServiceRequest request, IResponseMessage message)
{
var rqmsg = request.Message;
var method = rqmsg["Method"].ToString();
var rsType = MappingInfo.RequestToResponseMap[MappingInfo.MethodToRequestMap[method]];
if (!(message is ErrorResponse || message.GetType() == rsType))
{
throw new ArgumentException($"类型错误，应为 {rsType} 或 {typeof(ErrorResponse)}。", nameof(message));
}
return(request.SendResponseAsync(message.ToValueSet()));
}
public static IRequestMessage GetMessage(this AppServiceRequest request)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
var message = request.Message;
var method = message["Method"].ToString();
var data = message["Data"].ToString();
var requestType = MappingInfo.MethodToRequestMap[method];
return((IRequestMessage)JsonConvert.DeserializeObject(data, requestType));
}
/// <summary>
/// Serializes and sends the response for the AppServiceRequest
/// </summary>
private static async Task SendResponse(AppServiceRequest request, InvocationResult result)
{
if (result.Result == null)
{
return;
}
//Send a new ValueSet with the key as a random string and the value as the serialized result
await request.SendResponseAsync(new ValueSet
{
{ Guid.NewGuid().ToString(), JsonConvert.Serialize(result.Result) }
});
}
private static void SaveOrderAsync(AppServiceRequest request, string json)
{
Console.WriteLine("Received SaveOrder request. Working on it...");
Order order = new Order();
order.LoadFromJson(json);
var orderID = SaveOrderAndDetails(order);
ValueSet returnValues = new ValueSet();
returnValues.Add("response", string.IsNullOrEmpty(orderID)? "ERROR": orderID);
request.SendResponseAsync(returnValues).Completed += delegate { };
}
public async Task MessageCarrierReceivedAsync(AppServiceRequest request)
{
Guid guid = Guid.NewGuid();
latestCarrierCode = guid;
int counter = 0;
HasWaitingMessageCarrier = true;
while (true)
{
await sendQueueSemaphore.WaitAsync();
var queueItem = sendQueue.FirstOrDefault(x => x.RemoteSystemId == (string)request.Message["SenderId"]);
if (queueItem == null)
{
sendQueueSemaphore.Release();
if (latestCarrierCode != guid)
{
Debug.WriteLine($"A newer carrier is here. I will retire now. I was waiting for {counter} cycles.");
break;
}
else if (counter > _maxWaitTime)
{
Debug.WriteLine($"Okay I've waited {counter} cycles, that's enough. Bye!");
break;
}
Debug.WriteLine($"Queue is empty. Message Carrier is waiting for some message to arrive... {counter}");
await Task.Delay(1000);
counter++;
continue;
}
var vs = queueItem.Data.ToValueSet();
var result = await request.SendResponseAsync(vs);
queueItem.SetSendResult((RomeAppServiceResponseStatus)result);
sendQueue.Remove(queueItem);
sendQueueSemaphore.Release();
HasWaitingMessageCarrier = false;
break;
}
}
private async void AppServiceConnectionRequestReceived(AppServiceRequest request)
{
this.LogMessage("Received AppService request. Sending response.");
var status = await request.SendResponseAsync(this.CreatePongMessage(request.Message));
if (status == AppServiceResponseStatus.Success)
{
this.LogMessage("Successfully sent response.");
}
else
{
this.LogMessage("Failed to send response.");
}
}
public static async Task <ASConnection> AcceptConnectionAsync(AppServiceTriggerDetails e,
BackgroundTaskDeferral connectionDeferral, IObjectSerializer serializer)
{
// Receive connection request, send connection response
AppServiceRequest request = null;
AppServiceDeferral deferral = null;
var gotRequest = new SemaphoreSlim(0);
e.AppServiceConnection.RequestReceived += OnRequestReceived;
await gotRequest.WaitAsync();
e.AppServiceConnection.RequestReceived -= OnRequestReceived;
var message = serializer.DeserializeFromValueSet(request.Message);
if (message is ConnectionRequestMessage connectionRequest)
{
// Accept connection request
var connectionId = "AS_" + Guid.NewGuid();
var connectionResponse = new ConnectionResponseMessage(connectionId);
await request.SendResponseAsync(serializer.SerializeToValueSet(connectionResponse));
deferral.Complete();
return(new ASConnection(
connectionId, e.AppServiceConnection, connectionDeferral,
e.IsRemoteSystemConnection, serializer));
}
else
{
// Wrong message received => reject connection
var connectionResponse = new ConnectionResponseMessage(null);
await request.SendResponseAsync(serializer.SerializeToValueSet(connectionResponse));
deferral.Complete();
connectionDeferral.Complete();
e.AppServiceConnection.Dispose();
return(null);
}
void OnRequestReceived(AppServiceConnection _, AppServiceRequestReceivedEventArgs r)
{
request = r.Request;
deferral = r.GetDeferral();
gotRequest.Release();
}
}
public async Task ProcessRequest(AppServiceRequest request)
{
ValueSet message = request.Message;
string result = "";
if (message["command"] is string command)
{
switch (command)
{
case "pause":
_dispatcherQueue.TryEnqueue(_player.Pause);
result = "Ok";
break;
case "resume":
_dispatcherQueue.TryEnqueue(_player.Play);
result = "Ok";
break;
default:
result = "Unknown command: " + command;
break;
}
}
else if (message["state"] is string state)
{
switch (state)
{
case "playback":
result = _player.PlaybackState.ToString();
break;
case "volume":
result = _player.GlobalVolume.ToString();
break;
}
}
else
{
result = "No valid keys found";
}
ValueSet returnMessage = new ValueSet();
returnMessage.Add("result", result);
await request.SendResponseAsync(returnMessage);
}
public void Run(IBackgroundTaskInstance taskInstance)
{
if (!(taskInstance.TriggerDetails is AppServiceTriggerDetails appServiceTriggerDetails))
{
return;
}
AppServiceConnection appServiceConnection = appServiceTriggerDetails.AppServiceConnection;
appServiceConnection.RequestReceived += async(sender, args) =>
{
AppServiceDeferral appServiceDeferral = args.GetDeferral();
AppServiceRequest appServiceRequest = args.Request;
ValueSet request = appServiceRequest.Message;
await appServiceRequest.SendResponseAsync(new ValueSet { { "count", request.Count } });
appServiceDeferral.Complete();
};
}
public static async void SendResponse(ValueSet response)
{
AppServiceRequest request = AppRequest;
AppServiceDeferral deferal = AppRequestDeferal;
try
{
if (request != null)
{
await request.SendResponseAsync(response);
}
}
finally
{
if (deferal != null)
{
deferal.Complete();
deferal = null;
}
AppRequest = null;
}
}
private async Task <AppServiceResponseStatus> DisconnectAsync(string deviceID, AppServiceRequest request)
{
var device = _devices.FirstOrDefault(D => D.Id == deviceID);
if (device == null)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, $"Not found device by DeviceID. DeviceID=[{deviceID}]" },
}));
}
try
{
device.DeviceStatusUpdated -= OnDeviceStatusUpdated;
await device.DisconnectAsync();
_connectedDevice = null;
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, true },
{ Parameters.Details, String.Empty },
}));
}
catch (Exception e)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, e.Message },
}));
}
}
/// <summary>
/// Invokes the method from the message on the handler object and sends back the return value
/// </summary>
public static async void HandleRequest(AppServiceRequest request, object handler, string message)
{
var invoker = new ChannelInvoker(handler);
var result = invoker.ProcessRequest(message);
await SendResponse(request, result);
}
public AppServiceRequestWrapper(AppServiceRequest request)
{
_request = request;
}
private async Task <AppServiceResponseStatus> RequestSetupTemperatureChangeAsync(string deviceID, int leftTemperature, int rightTemperature, AppServiceRequest request)
{
var device = _devices.FirstOrDefault(D => D.Id == deviceID);
if (device == null)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, $"Not found device by DeviceID. DeviceId=[{deviceID}]" },
}));
}
try
{
await device.RequestSetupTemperatureChangeAsync(leftTemperature, rightTemperature);
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, true },
{ Parameters.Details, JsonConvert.SerializeObject(new int[] { device.SetupLeftTemperature, device.SetupRightTemperature }, Formatting.Indented) },
}));
}
catch (Exception e)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, e.Message },
}));
}
}
/// <summary>
/// Handles unknown request and return error message`
/// </summary>
private static IAsyncOperation <AppServiceResponseStatus> SendUnknownRequestErrorAsync(AppServiceRequest request, string requestString)
{
ConsoleColor oldColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Received unknown request: \"{0}\"", requestString);
string message = "Unknown Request";
ValueSet returnValues = new ValueSet();
returnValues.Add("ErrorMessage", message);
Console.WriteLine("Sending error message: \"{0}\"", message);
Console.WriteLine();
Console.ForegroundColor = oldColor;
return(request.SendResponseAsync(returnValues));
}
private async Task <AppServiceResponseStatus> RequestVolumeChangeAsync(string deviceID, VolumeLevels volumeLevel, AppServiceRequest request)
{
var device = _devices.FirstOrDefault(D => D.Id == deviceID);
if (device == null)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, $"Not found device by DeviceID. DeviceId=[{deviceID}]" },
}));
}
try
{
await device.RequestVolumeChangeAsync(volumeLevel);
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, true },
{ Parameters.Details, device.VolumeLevel.ToString() },
}));
}
catch (Exception e)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, e.Message },
}));
}
}
/// <summary>
/// Handles "GetCategories" request and returns data of product categories to UWA
/// </summary>
private static IAsyncOperation <AppServiceResponseStatus> SendCategoriesAsync(AppServiceRequest request)
{
ConsoleColor oldColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Received GetCategories request.");
ValueSet returnValues = new ValueSet();
try
{
var db = new Database(dbFileFolder);
// Serialize all DB query results into JSON
// Because AppService only support passing data of primitive types
int count = 0;
JsonArray categories = new JsonArray();
foreach (var cat in db.GetCategories())
{
Console.WriteLine("Adding return value. {0} : {1}", count.ToString(), cat.Name);
JsonObject jsonCat = new JsonObject();
jsonCat.Add("ID", JsonValue.CreateNumberValue(cat.ID));
jsonCat.Add("Name", JsonValue.CreateStringValue(cat.Name));
jsonCat.Add("Description", JsonValue.CreateStringValue(cat.Description));
categories.Add(jsonCat);
count++;
}
returnValues.Add("Result", categories.Stringify());
Console.WriteLine("Adding return value. {0} : {1}", "ResultCount", count);
returnValues.Add("ResultCount", count);
Console.WriteLine("Adding return value. {0} : {1}", "ErrorMessage", "Succeeded");
returnValues.Add("ErrorMessage", "Succeeded");
Console.WriteLine("Sending result with \"{0}\" categories", count);
Console.WriteLine();
Console.ForegroundColor = oldColor;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
returnValues.Add("ErrorMessage", e.Message);
}
return(request.SendResponseAsync(returnValues));
}
private async Task <AppServiceResponseStatus> ScanAsync(int timeoutMilliseconds, AppServiceRequest request)
{
_devices = await _bluetoothLEService.ScanAsync(timeoutMilliseconds);
var jsonResult = JsonConvert.SerializeObject(_devices, Formatting.Indented);
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Devices, jsonResult },
}));
}
private async Task <AppServiceResponseStatus> ConnectAsync(string deviceID, string uniqueId, AppServiceRequest request)
{
var device = _devices.FirstOrDefault(D => D.Id == deviceID);
if (device == null)
{
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, $"Not found device by DeviceID. DeviceID=[{deviceID}]" },
}));
}
try
{
uniqueId = await device.ConnectAsync(uniqueId);
_connectedDevice = device;
_connectedDevice.DeviceStatusUpdated += OnDeviceStatusUpdated;
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, true },
{ Parameters.Details, JsonConvert.SerializeObject(device, Formatting.Indented) },
{ Parameters.UniqueID, uniqueId },
}));
}
catch (Exception e)
{
if (device.IsConnected)
{
await device.DisconnectAsync();
}
return(await request.SendResponseAsync(new ValueSet()
{
{ Parameters.Result, false },
{ Parameters.Details, e.Message },
}));
}
}
/// <summary>
/// Handles "GetProducts" request and returns data of products of give category to UWA
/// </summary>
private static IAsyncOperation <AppServiceResponseStatus> SendProductsByCategoryAsync(AppServiceRequest request, int categoryId)
{
ConsoleColor oldColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Received GetProducts request for category id: \"{0}\".", categoryId);
ValueSet returnValues = new ValueSet();
try
{
var db = new Database(dbFileFolder);
// Serialize all DB query results into JSON
// Because AppService only support passing data of primitive types
int count = 0;
JsonArray products = new JsonArray();
foreach (var prod in db.GetProductsByCategory(categoryId))
{
Console.WriteLine("Adding return value. {0} : {1}", count.ToString(), prod.Name);
JsonObject jsonProd = new JsonObject();
jsonProd.Add("ID", JsonValue.CreateNumberValue(prod.ID));
jsonProd.Add("Name", JsonValue.CreateStringValue(prod.Name));
jsonProd.Add("QuantityPerUnit", JsonValue.CreateStringValue(prod.QuantityPerUnit));
jsonProd.Add("UnitPrice", JsonValue.CreateNumberValue(prod.UnitPrice));
jsonProd.Add("UnitsInStock", JsonValue.CreateNumberValue(prod.UnitsInStock));
jsonProd.Add("UnitsOnOrder", JsonValue.CreateNumberValue(prod.UnitsOnOrder));
jsonProd.Add("ReorderLevel", JsonValue.CreateNumberValue(prod.ReorderLevel));
jsonProd.Add("Discontinued", JsonValue.CreateBooleanValue(prod.Discontinued));
jsonProd.Add("SupplierID", JsonValue.CreateNumberValue(prod.SupplierID));
jsonProd.Add("CategoryID", JsonValue.CreateNumberValue(prod.CategoryID));
products.Add(jsonProd);
count++;
}
returnValues.Add("Result", products.Stringify());
Console.WriteLine("Adding return value. {0} : {1}", "ResultCount", count);
returnValues.Add("ResultCount", count);
Console.WriteLine("Adding return value. {0} : {1}", "ErrorMessage", "Succeeded");
returnValues.Add("ErrorMessage", "Succeeded");
Console.WriteLine("Sending result with \"{0}\" products", count);
Console.WriteLine();
Console.ForegroundColor = oldColor;
}
catch (Exception e)
{
Console.WriteLine(e.Message);
returnValues.Add("ErrorMessage", e.Message);
}
return(request.SendResponseAsync(returnValues));
}
