public async Task <bool> MoveNext()
{
var t = Fetch();
try
{
Current = await t.ConfigureAwait(false);
if (Current == null)
{
LogEnvironment.LogEvent("Current message was set to null!", LogSeverity.Warning);
}
return(Current != null);
}
catch (TaskCanceledException)
{
LogEnvironment.LogEvent("Read cancelled!", LogSeverity.Warning);
}
catch (Exception ex)
{
LogEnvironment.LogDebugEvent($"Un-Expected Error @MoveNext: {ex.OutlineException()}", LogSeverity.Error);
throw;
}
return(false);
}
public virtual async Task <ServiceOperationResponseMessage> ConsumeService(ServerOperationMessage request, DataTransferContext context)
{
//context.GetHttpContext().RequestServices.VerifyUserPermissions()
var retRaw = await serviceBackend.Broker.SendMessageToServer(request);
return(retRaw);
}
public OperationWaitHandle(ServerOperationMessage op)
{
ClientRequest = op;
if (!op.TickBack)
{
ServerResponse = new TaskCompletionSource <ServiceOperationResponseMessage>(TaskCreationOptions.RunContinuationsAsynchronously);
}
}
/// <summary>
/// Processes a message that was received from a remote client
/// </summary>
/// <param name="message">the message that was received from the remote host</param>
/// <returns>a response message that was generated as result of the received message</returns>
public ServiceOperationResponseMessage ProcessMessage(ServerOperationMessage message)
{
var msg = new MessageArrivedEventArgs
{
TargetService = message.TargetService,
Message = message.OperationPayload
};
if (!string.IsNullOrEmpty(message.HubUser))
{
msg.HubUser = JsonHelper.FromJsonStringStrongTyped <TransferIdentity>(message.HubUser).ToIdentity(serverSecurity);
}
OnMessageArrived(msg);
ServiceOperationResponseMessage ret;
if (msg.Completed)
{
if (msg.Error == null)
{
ret = new ServiceOperationResponseMessage
{
OperationId = message.OperationId,
ResponsePayload = msg.Response,
TargetService = message.TargetService,
Ok = true
};
}
else
{
ret = new ServiceOperationResponseMessage
{
OperationId = message.OperationId,
ResponsePayload = JsonHelper.ToJsonStrongTyped(msg.Error, true),
TargetService = message.TargetService,
Ok = false
};
}
}
else
{
ret = new ServiceOperationResponseMessage
{
OperationId = message.OperationId,
TargetService = message.TargetService,
ResponsePayload = JsonHelper.ToJsonStrongTyped(new SerializedException("Message was not processed!", new SerializedException[0]), true),
Ok = false
};
}
if (!string.IsNullOrEmpty(consumedService))
{
ret.ResponderFor = consumedService;
}
return(ret);
}
public override Task <ServiceOperationResponseMessage> ConsumeService(ServerOperationMessage request, DataTransferContext context)
{
try
{
CheckAuth(context, "ConnectAnyService", request.TargetService);
request.HubUser = JsonHelper.ToJsonStrongTyped(((ClaimsIdentity)context.Identity).ForTransfer());
return(base.ConsumeService(request, context));
}
catch (Exception ex)
{
return(Task.FromException <ServiceOperationResponseMessage>(ex));
}
}
public Task <ServiceOperationResponseMessage> SendMessageToServer(ServerOperationMessage message)
{
try
{
if (GrabService(message.TargetService, null, true, out var service, out var operations, out var waitingMessages))
{
if (service.ServiceKind == ServiceStatus.ServiceType.Local)
{
return(Task.FromResult(service.LocalClient.ProcessMessage(message)));
}
lock (service)
{
OperationWaitHandle hnd = new OperationWaitHandle(message);
try
{
if (service.OpenTaskWait != null)
{
var t = service.OpenTaskWait;
service.OpenTaskWait = null;
t.SetResult(hnd);
}
else
{
operations.Enqueue(hnd);
}
}
catch (Exception ex)
{
hnd.ServerResponse.SetException(ex);
}
return(hnd.ServerResponse.Task);
}
}
throw new CommunicationException("The requested service is not available");
}
catch (Exception ex)
{
return(Task.FromResult(new ServiceOperationResponseMessage
{
OperationId = message.OperationId,
TargetService = message.TargetService,
ResponsePayload = JsonHelper.ToJsonStrongTyped((SerializedException)ex, true),
Ok = false
}));
}
}
public override async Task <ServiceOperationResponseMessage> ConsumeService(ServerOperationMessage request, ServerCallContext context)
{
//context.GetHttpContext().RequestServices.VerifyUserPermissions()
var retRaw = await serviceBackend.Broker.SendMessageToServer(new MessagingShared.Hub.Protocol.ServerOperationMessage
{
OperationId = request.OperationId,
TargetService = request.TargetService,
HubUser = request.HubUser,
OperationPayload = request.OperationPayload,
TickBack = request.TickBack
});
return(new ServiceOperationResponseMessage
{
OperationId = retRaw.OperationId ?? "",
TargetService = retRaw.TargetService ?? "",
Ok = retRaw.Ok,
ResponderFor = retRaw.ResponderFor ?? "",
ResponsePayload = retRaw.ResponsePayload ?? ""
});
}
internal void PushMessage(ServerOperationMessage message)
{
TaskCompletionSource <ServerOperationMessage> target = null;
lock (messageSync)
{
if (openReadWait != null)
{
target = openReadWait;
openReadWait = null;
}
else
{
messageQueue.Enqueue(message);
}
}
if (target != null)
{
target.SetResult(message);
}
}
public async Task <ServiceOperationResponseMessage> ConsumeServiceAsync(ServerOperationMessage serverOperationMessage)
{
var ret = await channel.Request(serverOperationMessage);
return((ServiceOperationResponseMessage)ret);
}
public ServiceOperationResponseMessage ConsumeService(ServerOperationMessage serverOperationMessage)
{
return(ConsumeServiceAsync(serverOperationMessage).ConfigureAwait(false).GetAwaiter().GetResult());
}
