public async Task NotifyObserversAsync(GatewayRequest request)
{
try
{
// Validates parameter
if (string.IsNullOrWhiteSpace(request?.Topic) ||
(request.Messages == null) ||
!request.Messages.Any() ||
(request.ObservableEntityId?.ServiceUri == null))
{
throw new ArgumentException($"Parameter {nameof(request)} is null or invalid.", nameof(request));
}
// Gets service proxy
IClientObservableService proxy = GetServiceProxy(
request.ObservableEntityId.PartitionKey,
request.ObservableEntityId.ServiceUri);
if (proxy == null)
{
throw new ApplicationException("The ServiceProxy cannot be null.");
}
// Invokes actor using proxy
foreach (Message message in request.Messages.Where(message => message != null))
{
ServiceEventSource.Current.Message(
$"Notifying observers...\r\n[Observable]: {request.ObservableEntityId}\r\n[Message]: Topic=[{request.Topic}] Body=[{message.Body ?? "NULL"}]");
await proxy.NotifyObserversAsync(request.Topic, message, request.UseObserverAsProxy);
}
}
catch (AggregateException ex)
{
if (!(ex.InnerExceptions?.Count > 0))
{
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
foreach (Exception exception in ex.InnerExceptions)
{
ServiceEventSource.Current.Message(exception.Message);
}
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
catch (Exception ex)
{
ServiceEventSource.Current.Message(ex.Message);
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
}
public async Task RegisterObservableServiceAsync(GatewayRequest request)
{
try
{
// Validates parameter
if (string.IsNullOrWhiteSpace(request?.Topic) ||
(request.ObservableEntityId?.ServiceUri == null))
{
throw new ArgumentException($"Parameter {nameof(request)} is null or invalid.", nameof(request));
}
// Gets service proxy
IClientObservableService proxy = GetServiceProxy(
request.ObservableEntityId.PartitionKey,
request.ObservableEntityId.ServiceUri);
if (proxy == null)
{
throw new ApplicationException("The ServiceProxy cannot be null.");
}
// Invokes actor using proxy
ServiceEventSource.Current.Message(
$"Registering observable...\r\n[Observable]: {request.ObservableEntityId}\r\n[Publication]: Topic=[{request.Topic}]");
await proxy.RegisterObservableServiceAsync(request.Topic);
}
catch (AggregateException ex)
{
if (!(ex.InnerExceptions?.Count > 0))
{
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
foreach (Exception exception in ex.InnerExceptions)
{
ServiceEventSource.Current.Message(exception.Message);
}
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
catch (Exception ex)
{
ServiceEventSource.Current.Message(ex.Message);
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
}
public async Task ClearObserversAndPublicationsAsync(GatewayRequest request)
{
try
{
// Validates parameter
if (request.ObservableEntityId?.ServiceUri == null)
{
throw new ArgumentException($"Parameter {nameof(request)} is null or invalid.", nameof(request));
}
// Gets service proxy
IClientObservableService proxy = GetServiceProxy(
request.ObservableEntityId.PartitionKey,
request.ObservableEntityId.ServiceUri);
if (proxy == null)
{
throw new ApplicationException("The ServiceProxy cannot be null.");
}
// Invokes actor using proxy
ServiceEventSource.Current.Message($"Clearing observers and publications...\r\n[Observable]: {request.ObservableEntityId}");
await proxy.ClearObserversAndPublicationsAsync(request.UseObserverAsProxy);
}
catch (AggregateException ex)
{
if (!(ex.InnerExceptions?.Count > 0))
{
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
foreach (Exception exception in ex.InnerExceptions)
{
ServiceEventSource.Current.Message(exception.Message);
}
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
catch (Exception ex)
{
ServiceEventSource.Current.Message(ex.Message);
throw new HttpResponseException(this.Request.CreateErrorResponse(HttpStatusCode.NotFound, ex.Message));
}
}
