internal static CircuitBreakerState FromState(CircuitBreakerFunctionState functionState)
{
CircuitBreakerState result = null;
if (functionState != null)
{
if (functionState.State == Closed.ToString())
{
result = Closed;
}
if (functionState.State == Open.ToString())
{
result = Open;
}
if (functionState.State == HalfOpen.ToString())
{
result = HalfOpen;
}
result.Timestamp = functionState.Timestamp;
}
return(result);
}
public override Task OnExecutingAsync(FunctionExecutingContext executingContext, CancellationToken cancellationToken)
{
var request = executingContext.Arguments.Values.FirstOrDefault(argument => argument is HttpRequest) as HttpRequest;
var stateReaderService = request.HttpContext.RequestServices.GetRequiredService <ICircuitBreakerStateService>();
_state = stateReaderService.GetStateAsync(_serviceName, executingContext.FunctionName).Result;
if (_state != null && _state.IsOpen)
{
request.HttpContext.Response.StatusCode = 403;
request.HttpContext.Response.Body.Flush();
request.HttpContext.Response.Body.Close();
throw new OpenCircuitException(_serviceName, executingContext.FunctionName);
}
return(base.OnExecutingAsync(executingContext, cancellationToken));
}