public PrimeController(
IMapper mapper,
IMediator mediator,
ILinksService linksService,
ILoggingManager loggingManager,
PolicyConfiguration policyConfiguration)
{
_mapper = mapper;
_mediator = mediator;
_linksService = linksService;
_loggingManager = loggingManager;
_policyConfiguration = policyConfiguration;
_circuitBreakerPolicy = Policy
.Handle <TaskCanceledException>()
.CircuitBreakerAsync(policyConfiguration.CircuitBreakerAllowedExceptions, TimeSpan.FromMinutes(_policyConfiguration.CircuitBreakerShutdownDurationInMinutes),
(ex, t) =>
{
_loggingManager.LogFatal("Circuit broken!");
},
() =>
{
_loggingManager.LogInformation("Circuit Reset!");
});
}
public async Task <ActionResult <NumberIsPrimeDto> > CheckNumberIsPrime(CheckNumberDto checkNumberDto)
{
_loggingManager.LogInformation($"CheckNumberIsPrime endpoint started. number: {checkNumberDto.Number}");
try
{
bool isPrimeResult = false;
await _circuitBreakerPolicy.ExecuteAsync(async() =>
{
var cancelTokenSource = new CancellationTokenSource();
cancelTokenSource.CancelAfter(TimeSpan.FromSeconds(_policyConfiguration.TimoutInMinutes));
var numberIsPrimeResult = await _mediator.Send(
new CheckNumberIsPrimeCommand
{
Number = checkNumberDto.Number
}, cancelTokenSource.Token);
isPrimeResult = numberIsPrimeResult.IsPrime;
});
return(Ok(new NumberIsPrimeDto
{
IsPrime = isPrimeResult
}));
}
catch (TaskCanceledException taskCanceledException)
{
_loggingManager.LogError(taskCanceledException.Message);
return(Problem(
title: "The computation runs too long. Please check back later or use a HATEOAS enabled endpoint.",
detail: taskCanceledException.Message,
statusCode: (int)HttpStatusCode.RequestTimeout));
}
catch (Exception exception)
{
_loggingManager.LogError(exception.Message);
return(Problem(
title: "Unexpected error. Please contact support.",
detail: exception.Message,
statusCode: (int)HttpStatusCode.InternalServerError));
}
}