public override void OnException(ExceptionContext context)
{
var urlHelper =
(IUrlHelper)context.HttpContext.RequestServices.GetService(typeof(IUrlHelper));
switch (context.Exception)
{
case PagingValidationException pagingValidationException:
PageHateoasResponse pagingErrorResponse = ProcessPagingValidationException(pagingValidationException, context, this.stringResources.PageStringResources, urlHelper);
context.Result = new BadRequestObjectResult(pagingErrorResponse);
break;
case ValidationException validationException:
BaseHateoasResponse validationErrorResponse = ProcessValidationException(validationException);
context.Result = new BadRequestObjectResult(validationErrorResponse);
break;
case SqlException _:
BaseHateoasResponse sqlErrorResponse = ProcessSqlException(stringResources);
context.Result = new BadRequestObjectResult(sqlErrorResponse);
break;
case Exception exception:
BaseHateoasResponse errorResponse = ProcessException(exception);
context.Result = new BadRequestObjectResult(errorResponse);
break;
}
context.ExceptionHandled = true;
}
private static PageHateoasResponse ProcessPagingValidationException(PagingValidationException pagingValidationException, ExceptionContext context, PagingStringResources pageStringResources, IUrlHelper urlHelper)
{
const int DefaultPageNumber = 1;
const int DefaultPageSize = 25;
var errorResponse = new PageHateoasResponse
{
Errors = pagingValidationException.ValidationMessages,
PageNumber = DefaultPageNumber,
PageSize = DefaultPageSize
};
var actionInfo = new ActionInfo
{
UrlHelper = urlHelper,
RouteName = context.ActionDescriptor.AttributeRouteInfo.Name,
HttpMethod = context.HttpContext.Request.Method
};
errorResponse.GenerateLinks(pageStringResources, actionInfo);
return(errorResponse);
}
