public async Task <ITriggerBinding> TryCreateAsync(TriggerBindingProviderContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
var parameterInfo = context.Parameter;
var attribute = parameterInfo.GetCustomAttribute <SignalRTriggerAttribute>(false);
if (attribute == null)
{
return(null);
}
if (_webhookException != null)
{
throw new NotSupportedException($"SignalR trigger is disabled due to 'AzureWebJobsStorage' connection string is not set or invalid. {_webhookException}");
}
var resolvedAttribute = GetParameterResolvedAttribute(attribute, parameterInfo);
ValidateSignalRTriggerAttributeBinding(resolvedAttribute);
var accessKeys = _managerStore.GetOrAddByConnectionStringKey(resolvedAttribute.ConnectionStringSetting).AccessKeys;
var hubContext = await _managerStore.GetOrAddByConnectionStringKey(resolvedAttribute.ConnectionStringSetting).GetAsync(resolvedAttribute.HubName).ConfigureAwait(false);
return(new SignalRTriggerBinding(parameterInfo, resolvedAttribute, _dispatcher, accessKeys, hubContext as ServiceHubContext));
}
public async static Task <AzureSignalRClient> GetAzureSignalRClientAsync(string connectionStringKey, string attributeHubName, IServiceManagerStore serviceManagerStore)
{
var serviceHubContext = await serviceManagerStore
.GetOrAddByConnectionStringKey(connectionStringKey)
.GetAsync(attributeHubName) as ServiceHubContext;
return(new AzureSignalRClient(serviceHubContext));
}
public async Task <ServiceEndpoint[]> ConvertAsync(SignalREndpointsAttribute input, CancellationToken cancellationToken)
{
var hubContext = await _serviceManagerStore
.GetOrAddByConnectionStringKey(input.ConnectionStringSetting)
.GetAsync(input.HubName).ConfigureAwait(false) as IInternalServiceHubContext;
return(hubContext.GetServiceEndpoints().ToArray());
}
public async Task <NegotiationContext> ConvertAsync(
SignalRNegotiationAttribute input, CancellationToken cancellationToken)
{
var serviceHubContext = await _serviceManagerStore
.GetOrAddByConnectionStringKey(input.ConnectionStringSetting)
.GetAsync(input.HubName) as IInternalServiceHubContext;
var endpoints = serviceHubContext.GetServiceEndpoints();
var endpointConnectionInfo = await Task.WhenAll(endpoints.Select(async e =>
{
var subHubContext = serviceHubContext.WithEndpoints(new ServiceEndpoint[] { e });
var azureSignalRClient = new AzureSignalRClient(subHubContext);
var connectionInfo = await azureSignalRClient.GetClientConnectionInfoAsync(input.UserId, input.IdToken, input.ClaimTypeList, null);
return(new EndpointConnectionInfo(e)
{
ConnectionInfo = connectionInfo
});
}));
return(new NegotiationContext {
Endpoints = endpointConnectionInfo
});
}
private async ValueTask <ServiceHubContext> GetHubContextAsync()
{
var hubContext = await serviceManagerStore.GetOrAddByConnectionStringKey(connectionStringKey).GetAsync(HubName);
return(hubContext as ServiceHubContext);
}
internal ServerlessHub(IServiceManagerStore store)
{
_hubContext = store.GetOrAddByConnectionStringKey(ConnectionName).GetAsync(HubName).GetAwaiter().GetResult();
_serviceManager = store.GetOrAddByConnectionStringKey(ConnectionName).ServiceManager;
}