private static Task <bool> HandleCommonException(
ExceptionContext context,
CancellationToken cancellationToken)
{
var exception = context.Exception.Demystify();
if (exception is AggregateException)
{
// In async call, the exception will be wrapped as AggregateException
exception = exception.InnerException.Demystify();
}
if (exception == null)
{
return(Task.FromResult(false));
}
HttpStatusCode code;
switch (true)
{
case true when exception is StatusCodeException:
code = (exception as StatusCodeException).StatusCode;
context.Result = new StatusCodeResult((int)code);
break;
case true when exception is ODataException:
code = HttpStatusCode.BadRequest;
var response = EnableQueryAttribute.CreateErrorResponse(exception.Message, exception);
context.Result = new BadRequestObjectResult(response);
break;
case true when exception is SecurityException:
code = HttpStatusCode.Forbidden;
context.Result = new ForbidResult();
break;
case true when exception is NotImplementedException:
code = HttpStatusCode.NotImplemented;
context.Result = new StatusCodeResult((int)code);
break;
default:
code = HttpStatusCode.InternalServerError;
context.Result = new StatusCodeResult((int)code);
break;
}
// When exception occured in a ChangeSet request,
// exception must be handled in OnChangeSetCompleted
// to avoid deadlock in Github Issue #82.
var changeSetProperty = context.HttpContext.GetChangeSet();
if (changeSetProperty != null)
{
changeSetProperty.Exceptions.Add(exception);
changeSetProperty.OnChangeSetCompleted();
}
if (code != HttpStatusCode.Unused)
{
return(Task.FromResult(true));
}
return(Task.FromResult(false));
}