public TodoController(ILogger <TodoController> logger,
ITodoServiceAsyncContext serviceContext,
IConfiguration configuration,
IWebHostEnvironment webHostEnvironment,
IFeatureFlags featureFlags)
{
_configuration = configuration;
_logger = logger;
_serviceAgent = new TodoServiceAsyncAgent(serviceContext);
_version = configuration["TodoControllerVersion"];
_environment = webHostEnvironment.EnvironmentName;
_featureFlagsInUse = featureFlags;
}
public FeatureFlags(IConfiguration configuration, ITodoServiceAsyncContext context)
{
_featureFlags = FeatureFlagsFactory.GetFeatureFlagsInUse(configuration, context);
}
public static IEnumerable <FeatureFlagViewModel> GetFeatureFlagsInUse(IConfiguration configuration, ITodoServiceAsyncContext context)
{
if (null == LaunchDarklyCredentials)
{
InitializeFeatureFlagConfiguration(configuration);
}
// We can only activate feature flags when all pre-req features are active
// If pre-req flags is empty, the flag is only implemented inside this servive
var featurFlagsInUse = CloneFlags(_webuiSupportedFeatureFlags);
IEnumerable <FeatureFlagViewModel> apiSupportedFeatureFlags = GetServiceSupportedFeatureFlags(context);
//Validate pre req
foreach (var apiFlag in featurFlagsInUse)
{
foreach (var dbFlag in apiFlag.PreReqKeys)
{
var preReq = apiSupportedFeatureFlags.SingleOrDefault(f => f.Key == dbFlag.Key);
if (preReq != null)
{
dbFlag.State = preReq.State;
}
}
}
if (LaunchDarklyCredentials.LdClient != null)
{
foreach (var featureFlag in featurFlagsInUse)
{
featureFlag.State = LaunchDarklyCredentials.LdClient.BoolVariation(featureFlag.Key, LaunchDarklyCredentials.LdUser, false);
}
}
return(featurFlagsInUse);
}
private static IEnumerable <FeatureFlagViewModel> GetServiceSupportedFeatureFlags(ITodoServiceAsyncContext serviceAgent)
{
var task = Task.Run(() => serviceAgent.SupportedFeatureFlags());
var flags = (IEnumerable <Service.Models.FeatureFlagDTO>)task.GetType().GetProperty("Result").GetValue(task);
IEnumerable <FeatureFlagViewModel> serviceSupportedFeatureFlags = flags.ToList().ConvertAll(new Converter <Service.Models.FeatureFlagDTO, FeatureFlagViewModel>(ViewModelFeatureFlagMapper.Map));
return(serviceSupportedFeatureFlags);
}
public TodoServiceAsyncAgent(ITodoServiceAsyncContext context)
{
Context = context;
}
