public async Task <EventStreamResponse <T> > OnAsync <T>(string path,
ObjectRootPatchReceivedEventHandler <T> objectRootPatchReceived = null,
ObjectPropertyPatchReceivedEventHandler <T> objectPropertyPatchReceived = null,
EventStreamingResponseEventHandler <T> eventStreamingResponse = null,
EventStreamingResponseRawEventHandler <T> eventStreamingResponseRaw = null,
EventStreamingEventHandler <T> eventStreaming = null,
Action <Exception> exceptionHandler = null)
{
try
{
return(new EventStreamResponse <T>(this.Serializer,
await _requestManager.ListenAsync(path).ConfigureAwait(false),
objectRootPatchReceived,
objectPropertyPatchReceived,
eventStreamingResponse,
eventStreamingResponseRaw,
eventStreaming,
exceptionHandler));
}
catch (Exception e)
{
if (exceptionHandler == null)
{
throw new FirebaseException("Failed to establish OnAsync observer", e);
}
exceptionHandler(e);
}
return(null);
}
internal EventStreamResponse(ISerializer serializer, HttpResponseMessage httpResponse,
ObjectRootPatchReceivedEventHandler <T> rootPatchReceived = null,
ObjectPropertyPatchReceivedEventHandler <T> propertyPatchReceived = null,
EventStreamingResponseEventHandler <T> eventStreamingResponse = null,
EventStreamingResponseRawEventHandler <T> eventStreamingResponseRaw = null,
EventStreamingEventHandler <T> eventStreaming = null,
Action <Exception> exceptionHandler = null)
{
_serializer = serializer;
_fireCache = new FireCache();
_cache = new TemporaryCache();
this.CancellationToken = new CancellationTokenSource();
this.ExceptionHandler = exceptionHandler;
if (rootPatchReceived != null)
{
this.OnObjectRootPatchReceived += rootPatchReceived;
}
if (propertyPatchReceived != null)
{
this.OnObjectPropertyPatchReceived += propertyPatchReceived;
_jsonPatchManager = new JsonPatcher(_serializer);
}
if (eventStreamingResponse != null)
{
this.OnEventStreamingResponse += eventStreamingResponse;
}
if (eventStreamingResponseRaw != null)
{
this.OnEventStreamingResponseRaw += eventStreamingResponseRaw;
}
if (eventStreaming != null)
{
this.OnEventStreaming += eventStreaming;
}
_pollingTask = ReadLoop(httpResponse, CancellationToken.Token);
}
