private ModuleViewLocationCacheResult LocatePageFromPath(string executingFilePath, string pagePath)
{
var applicationRelativePath = GetAbsolutePath(executingFilePath, pagePath);
var cacheKey = new ModuleViewLocationCacheKey(applicationRelativePath, null);
if (!ViewLookupCache.TryGetValue(cacheKey, out ModuleViewLocationCacheResult cacheResult))
{
var expirationTokens = new HashSet <IChangeToken>();
cacheResult = CreateCacheResult(expirationTokens, applicationRelativePath);
var cacheEntryOptions = new MemoryCacheEntryOptions();
cacheEntryOptions.SetSlidingExpiration(_cacheExpirationDuration);
foreach (var expirationToken in expirationTokens)
{
cacheEntryOptions.AddExpirationToken(expirationToken);
}
// No views were found at the specified location. Create a not found result.
if (cacheResult == null)
{
cacheResult = new ModuleViewLocationCacheResult(new[] { applicationRelativePath });
}
cacheResult = ViewLookupCache.Set(
cacheKey,
cacheResult,
cacheEntryOptions);
}
return(cacheResult);
}
private ModuleViewLocationCacheResult OnCacheMiss(
ViewLocationExpanderContext expanderContext,
ModuleViewLocationCacheKey cacheKey)
{
IList <string> viewLocations = _options.ModuleViewLocationFormats;
ModuleViewLocationCacheResult cacheResult = null;
List <string> searchedLocations = new List <string>();
HashSet <IChangeToken> expirationTokens = new HashSet <IChangeToken>();
foreach (var location in viewLocations)
{
var path = string.Format(
CultureInfo.InvariantCulture,
location,
expanderContext.ViewName, null);
path = ModuleViewEnginePath.ResolvePath(path);
cacheResult = CreateCacheResult(expirationTokens, path);
if (cacheResult != null)
{
break;
}
searchedLocations.Add(path);
}
// No views were found at the specified location. Create a not found result.
if (cacheResult == null)
{
cacheResult = new ModuleViewLocationCacheResult(searchedLocations);
}
var cacheEntryOptions = new MemoryCacheEntryOptions();
cacheEntryOptions.SetSlidingExpiration(_cacheExpirationDuration);
foreach (var expirationToken in expirationTokens)
{
cacheEntryOptions.AddExpirationToken(expirationToken);
}
return(ViewLookupCache.Set(cacheKey, cacheResult, cacheEntryOptions));
}
private ViewEngineResult CreateViewEngineResult(ModuleViewLocationCacheResult result, string viewName)
{
if (!result.Success)
{
return(ViewEngineResult.NotFound(viewName, result.SearchedLocations));
}
var page = result.ViewEntry.PageFactory();
var viewStarts = new IRazorPage[result.ViewStartEntries.Count];
for (var i = 0; i < viewStarts.Length; i++)
{
var viewStartItem = result.ViewStartEntries[i];
viewStarts[i] = viewStartItem.PageFactory();
}
var view = new RazorView(this, _pageActivator, viewStarts, page, _htmlEncoder, _diagnosticListener);
return(ViewEngineResult.Found(viewName, view));
}