public async Task <bool> IsEnabledAsync(string featureName, string productName = null, CancellationToken cancellationToken = default)
{
try
{
var totalTime = ValueStopwatch.StartNew();
_diagnostics.BeginFeatureEvaluation(featureName, productName);
var feature = await _featureStore
.FindFeatureAsync(featureName, productName, cancellationToken);
if (feature == null)
{
_diagnostics.FeatureEvaluationNotFound(featureName, productName);
return(_options.NotFoundBehavior == NotFoundBehavior.SetEnabled);
}
if (!feature.IsEnabled)
{
_diagnostics.FeatureEvaluationDisabled(featureName, productName);
return(false);
}
var enabled = true;
var toggles = feature.GetToggles();
foreach (var toggle in toggles)
{
_diagnostics.BeginTogglevaluation(featureName, productName, toggle.Type);
var active = false;
var evaluationTime = ValueStopwatch.StartNew();
var toggleInstance = _toggleActivator
.CreateInstance(toggle.Type);
if (toggleInstance != null)
{
active = await toggleInstance?.IsActiveAsync(featureName, productName, cancellationToken);
}
_diagnostics.Togglevaluation(featureName, productName, toggle.Type, (long)evaluationTime.GetElapsedTime().TotalMilliseconds);
_diagnostics.EndTogglevaluation(featureName, productName, toggle.Type, active);
if (!active)
{
_diagnostics.ToggleNotActive(featureName, toggle.Type);
enabled = false;
break;
}
}
_diagnostics.EndFeatureEvaluation(featureName, productName, (long)totalTime.GetElapsedTime().TotalMilliseconds, enabled);
return(enabled);
}
catch (Exception exception)
{
_diagnostics.FeatureEvaluationThrow(featureName, productName, exception);
if (_options.OnErrorBehavior == OnErrorBehavior.Throw)
{
throw;
}
return(_options.OnErrorBehavior == OnErrorBehavior.SetEnabled);
}
}
public async Task <bool> IsEnabledAsync(string featureName, string productName = null, CancellationToken cancellationToken = default)
{
try
{
var totalTime = ValueStopwatch.StartNew();
Log.FeatureServiceProcessingBegin(_logger, featureName, productName);
var feature = await _featureStore
.FindFeatureAsync(featureName, productName, cancellationToken);
if (feature == null)
{
Log.FeatureServiceNotFoundFeature(_logger, featureName, productName);
return(_options.NotFoundBehavior == NotFoundBehavior.SetEnabled);
}
if (!feature.IsEnabled)
{
Log.FeatureServiceDisabledFeature(_logger, featureName, productName);
return(false);
}
var enabled = true;
var toggles = feature.GetToggles();
foreach (var toggle in toggles)
{
var active = false;
var evaluationTime = ValueStopwatch.StartNew();
var toggleInstance = _toggleActivator
.CreateInstance(toggle.Type);
if (toggleInstance != null)
{
active = await toggleInstance?.IsActiveAsync(featureName, productName, cancellationToken);
}
Counters.Instance
.ToggleEvaluationTime(
featureName: featureName,
toggleName: toggle.Type,
elapsedMilliseconds: evaluationTime.GetElapsedTime().TotalMilliseconds);
if (!active)
{
Log.FeatureServiceToggleIsNotActive(_logger, featureName, productName);
enabled = false;
break;
}
}
Counters.Instance
.FeatureEvaluationTime(
featureName: featureName,
elapsedMilliseconds: totalTime.GetElapsedTime().TotalMilliseconds);
return(enabled);
}
catch (Exception exception)
{
Log.FeatureServiceProcessingFail(_logger, featureName, productName, exception);
if (_options.OnErrorBehavior == OnErrorBehavior.Throw)
{
throw;
}
return(_options.OnErrorBehavior == OnErrorBehavior.SetEnabled);
}
}
