/// <inheritdoc />
public async Task <ToggleCollectionCacheResult> Load(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
try
{
var togglesJsonBytes = await distributedCache.GetAsync(Settings.ToggleCollectionKeyName, cancellationToken).ConfigureAwait(false);
var etag = await distributedCache.GetStringAsync(Settings.EtagKeyName, CancellationToken.None).ConfigureAwait(false);
if (togglesJsonBytes == null || etag == null)
{
return(ToggleCollectionCacheResult.CacheMiss);
}
ToggleCollection toggleCollection;
using (var ms = new MemoryStream(togglesJsonBytes, 0, togglesJsonBytes.Length, false))
{
ms.Seek(0, SeekOrigin.Begin);
toggleCollection = jsonSerializer.Deserialize <ToggleCollection>(ms);
}
return(ToggleCollectionCacheResult.FromResult(toggleCollection, etag));
}
catch
{
return(ToggleCollectionCacheResult.CacheMiss);
}
}
public Task <ToggleCollectionCacheResult> Load(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (MemoryCache.TryGetValue(Settings.ToggleCollectionKeyName, out ToggleCollection toggles) &&
MemoryCache.TryGetValue(Settings.EtagKeyName, out string etag))
{
return(Task.FromResult(ToggleCollectionCacheResult.FromResult(toggles, etag)));
}
return(Task.FromResult(ToggleCollectionCacheResult.CacheMiss));
}
/// <inheritdoc />
public Task <ToggleCollectionCacheResult> Load(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (!fileSystem.FileExists(etagFile) || !fileSystem.FileExists(toggleFile))
{
return(Task.FromResult(ToggleCollectionCacheResult.CacheMiss));
}
using (var fileStream = fileSystem.FileOpenRead(toggleFile))
{
try
{
var initialToggleCollection = jsonSerializer.Deserialize <ToggleCollection>(fileStream);
var initialETag = fileSystem.ReadAllText(etagFile);
return(Task.FromResult(ToggleCollectionCacheResult.FromResult(initialToggleCollection, initialETag)));
}
catch
{
return(Task.FromResult(ToggleCollectionCacheResult.CacheMiss));
}
}
}
