/// <summary>
/// Creates a dotNetify hub that uses HTTP context for its hub context, and sets the response callback to a local function.
/// </summary>
/// <param name="vmControllerFactory">Factory of view model controllers.</param>
/// <param name="serviceProvider">Allows to provide scoped service provider for the view models.</param>
/// <param name="principalAccessor">Allows to pass the hub principal.</param>
/// <param name="hubPipeline">Manages middlewares and view model filters.</param>
/// <param name="hubResponseFactory">Factory of objects to send responses back to hub clients.</param>
/// <param name="callType">Hub call type.</param>
/// <param name="vmId">Identifies the view model.</param>
/// <param name="data">View model data.</param>
/// <returns>Hub instance.</returns>
private IDotNetifyHubHandler CreateHubHandler(
IVMControllerFactory vmControllerFactory,
IHubServiceProvider hubServiceProvider,
IPrincipalAccessor principalAccessor,
IHubPipeline hubPipeline,
IDotNetifyHubResponseManager hubResponseManager,
string callType,
string vmId,
object data = null)
{
var httpCallerContext = new HttpCallerContext(HttpContext);
if (principalAccessor is HubInfoAccessor)
{
var hubPrincipalAccessor = principalAccessor as HubInfoAccessor;
hubPrincipalAccessor.Principal = HttpContext?.User;
hubPrincipalAccessor.Context = new DotNetifyHubContext(httpCallerContext, callType, vmId, data, null, hubPrincipalAccessor.Principal);
}
return(new DotNetifyHubHandler(vmControllerFactory, hubServiceProvider, principalAccessor, hubPipeline, hubResponseManager)
{
CallerContext = httpCallerContext,
OnVMResponse = ResponseVMCallback
});
}
public async Task <string> Request_VM(
string vmId,
[FromQuery] string vmArg,
[FromServices] WebApiVMControllerFactory vmControllerFactory,
[FromServices] IHubServiceProvider hubServiceProvider,
[FromServices] IPrincipalAccessor principalAccessor,
[FromServices] IHubPipeline hubPipeline,
[FromServices] IDotNetifyHubResponseManager hubResponseManager
)
{
var hub = CreateHubHandler(vmControllerFactory, hubServiceProvider, principalAccessor, hubPipeline, hubResponseManager, nameof(IDotNetifyHubMethod.Request_VM), vmId, vmArg);
try
{
await hub.RequestVMAsync(vmId, vmArg);
_taskCompletionSource.TrySetResult(_responses.LastOrDefault());
_responses.Clear();
}
catch (Exception ex)
{
_taskCompletionSource.TrySetResult(ex.Serialize());
}
return(await _taskCompletionSource.Task);
}
public async Task Dispose_VM(
string vmId,
[FromServices] WebApiVMControllerFactory vmControllerFactory,
[FromServices] IHubServiceProvider hubServiceProvider,
[FromServices] IPrincipalAccessor principalAccessor,
[FromServices] IHubPipeline hubPipeline,
[FromServices] IDotNetifyHubResponseManager hubResponseManager
)
{
var hub = CreateHubHandler(vmControllerFactory, hubServiceProvider, principalAccessor, hubPipeline, hubResponseManager, nameof(IDotNetifyHubMethod.Dispose_VM), vmId);
await hub.DisposeVMAsync(vmId);
}
