/// <summary>
/// Sends an HTTP get request to cluster http gateway and deserializes the result.
/// </summary>
/// <typeparam name="T">The type of the object in List returned as response payload.</typeparam>
/// <param name="requestFunc">Func to create HttpRequest to send.</param>
/// <param name="relativeUri">The relative URI.</param>
/// <param name="deserializeFunc">Func to deserialize T.</param>
/// <param name="requestId">Request Id for corelation</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The payload of the GET response as List of T.</returns>
/// <exception cref="ServiceFabricException">When the response is not a success.</exception>
internal async Task <PagedData <T> > SendAsyncGetResponseAsPagedData <T>(
Func <HttpRequestMessage> requestFunc,
string relativeUri,
Func <JsonReader, T> deserializeFunc,
string requestId,
CancellationToken cancellationToken)
{
var response = await this.SendAsyncHandleUnsuccessfulResponse(requestFunc, relativeUri, requestId, cancellationToken);
var retValue = default(PagedData <T>);
if (response.Content != null)
{
try
{
var contentStream = await response.Content.ReadAsStreamAsync();
using (var streamReader = new StreamReader(contentStream))
{
using (var reader = new JsonTextReader(streamReader))
{
retValue = PagedDataConverter <T> .Deserialize(reader, deserializeFunc);
}
}
}
catch (JsonReaderException)
{
ServiceFabricHttpClientEventSource.Current.WarningMessage($"{this.ClientId}:{requestId}", SR.ErrorInvalidJsonInResponse);
}
}
return(retValue);
}
/// <summary>
/// Sends an HTTP get request to cluster http gateway and deserializes the result.
/// </summary>
/// <typeparam name="T">The type of the object in List returned as response payload.</typeparam>
/// <param name="requestFunc">Func to create HttpRequest to send.</param>
/// <param name="relativeUri">The relative URI.</param>
/// <param name="deserializeFunc">Func to deserialize T.</param>
/// <param name="requestId">Request Id for corelation</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>The payload of the GET response as List of T.</returns>
/// <exception cref="ServiceFabricException">When the response is not a success.</exception>
internal async Task <PagedData <T> > SendAsyncGetResponseAsPagedData <T>(
Func <HttpRequestMessage> requestFunc,
string relativeUri,
Func <JsonReader, T> deserializeFunc,
string requestId,
CancellationToken cancellationToken)
{
// pick a random Uri from endpoints(if more than 1) to send request to.
var endpoint = this.randomizedEndpoints.GetElement();
var requestUri = new Uri(endpoint, relativeUri);
var clientRequestId = this.GetClientRequestIdWithCorrelation(requestId);
var response = await this.SendAsyncHandleUnsuccessfulResponse(requestFunc, requestUri, clientRequestId, cancellationToken);
var retValue = default(PagedData <T>);
if (response != null && response.Content != null)
{
try
{
var contentStream = await response.Content.ReadAsStreamAsync();
using (var streamReader = new StreamReader(contentStream))
{
using (var reader = new JsonTextReader(streamReader))
{
retValue = PagedDataConverter <T> .Deserialize(reader, deserializeFunc);
}
}
}
catch (JsonReaderException ex)
{
ServiceFabricHttpClientEventSource.Current.WarningMessage($"{clientRequestId}", $"{SR.ErrorCanNotDeserializeResponseFromServer} JsonReaderException: {ex.ToString()}");
throw new ServiceFabricException(string.Format(SR.ErrorCanNotDeserializeResponseFromServer, response.StatusCode), ex);
}
}
return(retValue);
}
