public async Task <string> Request_VM(
string vmId,
[FromQuery] string vmArg,
[FromServices] IVMFactory vmFactory,
[FromServices] IHubServiceProvider hubServiceProvider,
[FromServices] IVMServiceScopeFactory serviceScopeFactory,
[FromServices] IHubPipeline hubPipeline,
[FromServices] IPrincipalAccessor principalAccessor
)
{
var taskCompletionSource = new TaskCompletionSource <string>(TaskCreationOptions.RunContinuationsAsynchronously);
Task responseVM(string arg1, string arg2, string arg3)
{
taskCompletionSource.TrySetResult(arg3);
return(Task.CompletedTask);
}
var vmController = new VMController(responseVM, vmFactory, serviceScopeFactory.CreateScope())
{
ResponseVMFilter = CreateRespondingVMFilter(hubPipeline, vmId, vmArg)
};
var httpCallerContext = InitializeContext(vmController, hubServiceProvider, principalAccessor);
var connectionId = httpCallerContext.ConnectionId;
try
{
var hubContext = new DotNetifyHubContext(httpCallerContext, nameof(Request_VM), vmId, vmArg, BuildHeaders(), httpCallerContext.User);
vmController.RequestVMFilter = CreateVMFilter(hubContext, hubPipeline);
await hubPipeline.RunMiddlewaresAsync(hubContext, async ctx =>
{
await vmController.OnRequestVMAsync(connectionId, ctx.VMId, ctx.Data);
vmController.Dispose();
});
}
catch (Exception ex)
{
var finalEx = await hubPipeline.RunExceptionMiddlewareAsync(httpCallerContext, ex);
if (finalEx is OperationCanceledException == false)
{
taskCompletionSource.TrySetResult(DotNetifyHub.SerializeException(finalEx));
}
}
return(await taskCompletionSource.Task);
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="memoryCache">Memory cache for storing the view model controllers.</param>
/// <param name="serviceScopeFactory">Factory for dependency injection service scope.</param>
public VMControllerFactory(IMemoryCache memoryCache, IVMServiceScopeFactory serviceScopeFactory)
{
_controllersCache = memoryCache ?? throw new ArgumentNullException("No service of type IMemoryCache has been registered.");
_serviceScopeFactory = serviceScopeFactory;
}
public WebApiVMControllerFactory(IVMFactory vmFactory, IVMServiceScopeFactory serviceScopeFactory) :
base(_cache, vmFactory, serviceScopeFactory)
{
CacheExpiration = TimeSpan.FromMinutes(20);
}
public async Task <string> Update_VM(
string vmId,
[FromQuery] string vmArg,
[FromBody] Dictionary <string, object> vmData,
[FromServices] IVMFactory vmFactory,
[FromServices] IHubServiceProvider hubServiceProvider,
[FromServices] IVMServiceScopeFactory serviceScopeFactory,
[FromServices] IHubPipeline hubPipeline,
[FromServices] IPrincipalAccessor principalAccessor)
{
var taskCompletionSource1 = new TaskCompletionSource <string>();
var taskCompletionSource2 = new TaskCompletionSource <string>();
var vmController = new VMController((arg1, arg2, arg3) =>
{
if (!taskCompletionSource1.TrySetResult(arg3))
{
taskCompletionSource2.TrySetResult(arg3);
}
}, vmFactory, serviceScopeFactory.CreateScope())
{
ResponseVMFilter = CreateRespondingVMFilter(hubPipeline, vmId, vmData)
};
var httpCallerContext = InitializeContext(vmController, hubServiceProvider, principalAccessor);
var connectionId = httpCallerContext.ConnectionId;
try
{
var hubContext = new DotNetifyHubContext(httpCallerContext, nameof(Request_VM), vmId, vmArg, BuildHeaders(), httpCallerContext.User);
vmController.RequestVMFilter = CreateVMFilter(hubContext, hubPipeline);
hubPipeline.RunMiddlewares(hubContext, ctx =>
{
vmController.OnRequestVM(connectionId, ctx.VMId, ctx.Data);
return(Task.CompletedTask);
});
}
catch (Exception ex)
{
var finalEx = hubPipeline.RunExceptionMiddleware(httpCallerContext, ex);
if (finalEx is OperationCanceledException == false)
{
taskCompletionSource1.TrySetResult(DotNetifyHub.SerializeException(finalEx));
}
}
await taskCompletionSource1.Task;
try
{
var hubContext = new DotNetifyHubContext(httpCallerContext, nameof(Update_VM), vmId, vmData, BuildHeaders(), httpCallerContext.User);
vmController.UpdateVMFilter = CreateVMFilter(hubContext, hubPipeline);
hubPipeline.RunMiddlewares(hubContext, ctx =>
{
vmController.OnUpdateVM(connectionId, ctx.VMId, ctx.Data as Dictionary <string, object>);
vmController.Dispose();
return(Task.CompletedTask);
});
}
catch (Exception ex)
{
var finalEx = hubPipeline.RunExceptionMiddleware(httpCallerContext, ex);
if (finalEx is OperationCanceledException == false)
{
taskCompletionSource2.TrySetResult(DotNetifyHub.SerializeException(finalEx));
}
}
return(await taskCompletionSource2.Task);
}
