/// <summary>
/// Issues an HTTP request for the current request context.
/// </summary>
/// <param name="executionContext">The execution context which contains both the
/// requests and response context.</param>
/// <returns>IAsyncResult which represent an async operation.</returns>
public override IAsyncResult InvokeAsync(IAsyncExecutionContext executionContext)
{
IHttpRequest <TRequestContent> httpRequest = null;
try
{
SetMetrics(executionContext.RequestContext);
httpRequest = CreateWebRequest(executionContext.RequestContext);
executionContext.RuntimeState = httpRequest;
IRequest wrappedRequest = executionContext.RequestContext.Request;
if (executionContext.RequestContext.Retries == 0)
{
// First call, initialize an async result.
executionContext.ResponseContext.AsyncResult =
new RuntimeAsyncResult(executionContext.RequestContext.Callback,
executionContext.RequestContext.State);
}
// Set request headers
httpRequest.SetRequestHeaders(executionContext.RequestContext.Request.Headers);
executionContext.RequestContext.Metrics.StartEvent(Metric.HttpRequestTime);
if (wrappedRequest.HasRequestBody())
{
// Send request body if present.
httpRequest.BeginGetRequestContent(new AsyncCallback(GetRequestStreamCallback), executionContext);
}
else
{
// Get response if there is no response body to send.
httpRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), executionContext);
}
return(executionContext.ResponseContext.AsyncResult);
}
catch (Exception exception)
{
if (executionContext.ResponseContext.AsyncResult != null)
{
// An exception will be thrown back to the calling code.
// Dispose AsyncResult as it will not be used further.
executionContext.ResponseContext.AsyncResult.Dispose();
executionContext.ResponseContext.AsyncResult = null;
}
if (httpRequest != null)
{
httpRequest.Abort();
httpRequest.Dispose();
}
// Log this exception as it will not be caught by ErrorHandler.
this.Logger.Error(exception, "An exception occured while initiating an asynchronous HTTP request.");
throw;
}
}
/// <summary>
/// Issues an HTTP request for the current request context.
/// </summary>
/// <param name="executionContext">The execution context which contains both the
/// requests and response context.</param>
/// <returns>IAsyncResult which represent an async operation.</returns>
public override IAsyncResult InvokeAsync(IAsyncExecutionContext executionContext)
{
IHttpRequest <TRequestContent> httpRequest = null;
try
{
httpRequest = CreateWebRequest(executionContext.RequestContext);
executionContext.RuntimeState = httpRequest;
IRequest wrappedRequest = executionContext.RequestContext.Request;
if (executionContext.RequestContext.Retries == 0)
{
// First call, initialize an async result.
executionContext.ResponseContext.AsyncResult =
new RuntimeAsyncResult(executionContext.RequestContext.Callback,
executionContext.RequestContext.State);
}
// Set request headers
httpRequest.SetRequestHeaders(executionContext.RequestContext.Request.Headers);
if (wrappedRequest.HasRequestBody())
{
// Send request body if present.
httpRequest.BeginGetRequestContent(new AsyncCallback(GetRequestStreamCallback), executionContext);
}
else
{
// Get response if there is no response body to send.
httpRequest.BeginGetResponse(new AsyncCallback(GetResponseCallback), executionContext);
}
return(executionContext.ResponseContext.AsyncResult);
}
catch (Exception)
{
if (executionContext.ResponseContext.AsyncResult != null)
{
// An exception will be thrown back to the calling code.
// Dispose AsyncResult as it will not be used further.
executionContext.ResponseContext.AsyncResult.Dispose();
executionContext.ResponseContext.AsyncResult = null;
}
if (httpRequest != null)
{
httpRequest.Dispose();
}
throw;
}
}
public override IAsyncResult InvokeAsync(IAsyncExecutionContext executionContext)
{
IHttpRequest <TRequestContent> httpRequest = null;
try
{
SetMetrics(executionContext.RequestContext);
httpRequest = (IHttpRequest <TRequestContent>)(executionContext.RuntimeState = CreateWebRequest(executionContext.RequestContext));
IRequest request = executionContext.RequestContext.Request;
if (executionContext.RequestContext.Retries == 0)
{
executionContext.ResponseContext.AsyncResult = new RuntimeAsyncResult(executionContext.RequestContext.Callback, executionContext.RequestContext.State);
executionContext.ResponseContext.AsyncResult.AsyncOptions = executionContext.RequestContext.AsyncOptions;
executionContext.ResponseContext.AsyncResult.Action = executionContext.RequestContext.Action;
executionContext.ResponseContext.AsyncResult.Request = executionContext.RequestContext.OriginalRequest;
}
httpRequest.SetRequestHeaders(executionContext.RequestContext.Request.Headers);
executionContext.RequestContext.Metrics.StartEvent(Metric.HttpRequestTime);
if (request.HasRequestBody())
{
httpRequest.BeginGetRequestContent(GetRequestStreamCallback, executionContext);
}
else
{
httpRequest.BeginGetResponse(GetResponseCallback, executionContext);
}
return(executionContext.ResponseContext.AsyncResult);
}
catch (Exception exception)
{
if (executionContext.ResponseContext.AsyncResult != null)
{
executionContext.ResponseContext.AsyncResult.Dispose();
executionContext.ResponseContext.AsyncResult = null;
}
httpRequest?.Dispose();
Logger.Error(exception, "An exception occured while initiating an asynchronous HTTP request.");
throw;
}
}
