/// <inheritdoc/>
public FeatureFlagsState AllFlagsState(User user, params FlagsStateOption[] options)
{
if (IsOffline())
{
Log.Warn("AllFlagsState() was called when client is in offline mode. Returning empty state.");
return(new FeatureFlagsState(false));
}
if (!Initialized())
{
if (_featureStore.Initialized())
{
Log.Warn("AllFlagsState() called before client initialized; using last known values from feature store");
}
else
{
Log.Warn("AllFlagsState() called before client initialized; feature store unavailable, returning empty state");
return(new FeatureFlagsState(false));
}
}
if (user == null || user.Key == null)
{
Log.Warn("AllFlagsState() called with null user or null user key. Returning empty state");
return(new FeatureFlagsState(false));
}
var state = new FeatureFlagsState(true);
var clientSideOnly = FlagsStateOption.HasOption(options, FlagsStateOption.ClientSideOnly);
var withReasons = FlagsStateOption.HasOption(options, FlagsStateOption.WithReasons);
var detailsOnlyIfTracked = FlagsStateOption.HasOption(options, FlagsStateOption.DetailsOnlyForTrackedFlags);
IDictionary <string, FeatureFlag> flags = _featureStore.All(VersionedDataKind.Features);
foreach (KeyValuePair <string, FeatureFlag> pair in flags)
{
var flag = pair.Value;
if (clientSideOnly && !flag.ClientSide)
{
continue;
}
try
{
FeatureFlag.EvalResult result = flag.Evaluate(user, _featureStore, EventFactory.Default);
state.AddFlag(flag, result.Result.Value.InnerValue, result.Result.VariationIndex,
withReasons ? result.Result.Reason : null, detailsOnlyIfTracked);
}
catch (Exception e)
{
Log.ErrorFormat("Exception caught for feature flag \"{0}\" when evaluating all flags: {1}", flag.Key, Util.ExceptionMessage(e));
Log.Debug(e.ToString(), e);
EvaluationReason reason = new EvaluationReason.Error(EvaluationErrorKind.EXCEPTION);
state.AddFlag(flag, null, null, withReasons ? reason : null, detailsOnlyIfTracked);
}
}
return(state);
}
internal static bool HasOption(FlagsStateOption[] options, FlagsStateOption option)
{
foreach (var o in options)
{
if (o == option)
{
return(true);
}
}
return(false);
}
internal FeatureFlagsStateBuilder(FlagsStateOption[] options)
{
_detailsOnlyIfTracked = FlagsStateOption.HasOption(options, FlagsStateOption.DetailsOnlyForTrackedFlags);
_withReasons = FlagsStateOption.HasOption(options, FlagsStateOption.WithReasons);
}
