/// <inheritdoc />
public async Task <Result <LevelSelectors> > GetLevelSelectorsAsync(Context context, Fingerprint weakFingerprint, CancellationToken cts, int level)
{
if (_innerCacheSession is IReadOnlyMemoizationSessionWithLevelSelectors withLevelSelectors)
{
var result = await MetadataCache.GetOrAddSelectorsAsync(
context,
weakFingerprint,
fingerprint =>
withLevelSelectors.GetAllSelectorsAsync(context, weakFingerprint, cts));
return(LevelSelectors.Single(result));
}
throw new NotSupportedException($"Inner store {_innerCacheSession.GetType().Name} does not support GetLevelSelectors functionality.");
}
/// <inheritdoc />
public async Task <Result <LevelSelectors> > GetLevelSelectorsAsync(OperationContext context, Fingerprint weakFingerprint, int level)
{
var weakFingerprintKey = GetKey(weakFingerprint);
var(primaryResult, secondaryResult) = await _redis.ExecuteRaidedAsync <IEnumerable <Selector> >(context, async (redis, cancellationToken) =>
{
using var nestedContext = new CancellableOperationContext(context, cancellationToken);
var keys = await redis.GetHashKeysAsync(nestedContext, weakFingerprintKey, nestedContext.Context.Token);
return(keys.Select(r => DeserializeSelector(r)).Where(t => !t.isReplacementToken).Select(t => t.selector).ToList());
}, retryWindow : null);
Contract.Assert(primaryResult != null || secondaryResult != null);
var result = (primaryResult?.GetValueOrDefault() ?? EmptySelectors).Concat(secondaryResult?.GetValueOrDefault() ?? EmptySelectors).Distinct();
return(LevelSelectors.Single <List <Selector> >(result.ToList()));
}
/// <inheritdoc />
public Task <Result <LevelSelectors> > GetLevelSelectorsAsync(Context context, Fingerprint weakFingerprint, CancellationToken cts, int level)
{
return(Task.FromResult(LevelSelectors.Single(MemoizationStore.GetSelectorsCore(context, weakFingerprint, cts))));
}
/// <inheritdoc />
public async Task <Result <LevelSelectors> > GetLevelSelectorsAsync(Context context, Fingerprint weakFingerprint, CancellationToken cts, int level)
{
var result = await GetSelectorsAsync(context, weakFingerprint);
return(LevelSelectors.Single(result));
}
/// <inheritdoc />
protected override Task <Result <LevelSelectors> > GetLevelSelectorsCoreAsync(OperationContext context, Fingerprint weakFingerprint, int level)
{
return(Task.FromResult(LevelSelectors.Single(Database.GetSelectors(context, weakFingerprint))));
}
/// <inheritdoc />
public async Task <Result <LevelSelectors> > GetLevelSelectorsAsync(Context context, Fingerprint weakFingerprint, CancellationToken cts, int level)
{
return(LevelSelectors.Single(await MemoizationStore.GetSelectorsCoreAsync(context, weakFingerprint)));
}