public void OnProvidersExecuting(ActionDescriptorProviderContext context)
{
var newContext = new ActionDescriptorProviderContext();
_pageActionDescriptorProvider.OnProvidersExecuting(newContext);
_pageActionDescriptorProvider.OnProvidersExecuted(newContext);
var feature = new ViewsFeature();
_applicationPartManager.PopulateFeature(feature);
var lookup = new Dictionary <string, CompiledViewDescriptor>(feature.ViewDescriptors.Count, StringComparer.Ordinal);
foreach (var viewDescriptor in feature.ViewDescriptors)
{
// View ordering has precedence semantics, a view with a higher precedence was not
// already added to the list.
lookup.TryAdd(ViewPath.NormalizePath(viewDescriptor.RelativePath), viewDescriptor);
}
foreach (var item in newContext.Results)
{
var pageActionDescriptor = (PageActionDescriptor)item;
if (!lookup.TryGetValue(pageActionDescriptor.RelativePath, out var compiledViewDescriptor))
{
throw new InvalidOperationException($"A descriptor for '{pageActionDescriptor.RelativePath}' was not found.");
}
var compiledPageActionDescriptor = _compiledPageActionDescriptorFactory.CreateCompiledDescriptor(
pageActionDescriptor,
compiledViewDescriptor);
context.Results.Add(compiledPageActionDescriptor);
}
}
private async Task <CompiledPageActionDescriptor> LoadAsyncCore(PageActionDescriptor actionDescriptor, EndpointMetadataCollection endpointMetadata)
{
var viewDescriptor = await Compiler.CompileAsync(actionDescriptor.RelativePath);
var compiled = _compiledPageActionDescriptorFactory.CreateCompiledDescriptor(actionDescriptor, viewDescriptor);
var endpoints = new List <Endpoint>();
_endpointFactory.AddEndpoints(
endpoints,
routeNames: new HashSet <string>(StringComparer.OrdinalIgnoreCase),
action: compiled,
routes: Array.Empty <ConventionalRouteEntry>(),
conventions: new Action <EndpointBuilder>[]
{
b =>
{
// Copy Endpoint metadata for PageActionActionDescriptor to the compiled one.
// This is particularly important for the runtime compiled scenario where endpoint metadata is added
// to the PageActionDescriptor, which needs to be accounted for when constructing the
// CompiledPageActionDescriptor as part of the one of the many matcher policies.
// Metadata from PageActionDescriptor is less significant than the one discovered from the compiled type.
// Consequently, we'll insert it at the beginning.
for (var i = endpointMetadata.Count - 1; i >= 0; i--)
{
b.Metadata.Insert(0, endpointMetadata[i]);
}
},
},
createInertEndpoints: false);
// In some test scenarios there's no route so the endpoint isn't created. This is fine because
// it won't happen for real.
compiled.Endpoint = endpoints.SingleOrDefault();
return(compiled);
}