internal static string ToIdentifier(EvaluationErrorKind value)
{
switch (value)
{
case EvaluationErrorKind.ClientNotReady:
return("CLIENT_NOT_READY");
case EvaluationErrorKind.FlagNotFound:
return("FLAG_NOT_FOUND");
case EvaluationErrorKind.UserNotSpecified:
return("USER_NOT_SPECIFIED");
case EvaluationErrorKind.MalformedFlag:
return("MALFORMED_FLAG");
case EvaluationErrorKind.WrongType:
return("WRONG_TYPE");
case EvaluationErrorKind.Exception:
return("EXCEPTION");
default:
throw new ArgumentException();
}
}
internal EvaluationReason(EvaluationReasonKind kind, int ruleIndex, string ruleId, string prereqKey, EvaluationErrorKind errorKind)
{
_kind = kind;
_ruleIndex = ruleIndex;
_ruleId = ruleId;
_prerequisiteKey = prereqKey;
_errorKind = errorKind;
}
internal EvaluationEvent NewUnknownFlagEvaluationEvent(
string flagKey,
User user,
LdValue defaultValue,
EvaluationErrorKind errorKind
)
{
return(new EvaluationEvent
{
Timestamp = UnixMillisecondTime.Now,
User = user,
FlagKey = flagKey,
Value = defaultValue,
Default = defaultValue,
Reason = EvaluationReason.ErrorReason(errorKind)
});
}
/// <summary>
/// Returns an EvaluationReason of the kind <see cref="EvaluationReasonKind.ERROR"/>.
/// </summary>
/// <param name="errorKind"></param>
/// <returns></returns>
public static EvaluationReason ErrorReason(EvaluationErrorKind errorKind)
{
switch (errorKind)
{
case EvaluationErrorKind.CLIENT_NOT_READY: return(ErrorClientNotReady);
case EvaluationErrorKind.FLAG_NOT_FOUND: return(ErrorFlagNotFound);
case EvaluationErrorKind.USER_NOT_SPECIFIED: return(ErrorUserNotSpecified);
case EvaluationErrorKind.MALFORMED_FLAG: return(ErrorMalformedFlag);
case EvaluationErrorKind.WRONG_TYPE: return(ErrorWrongType);
case EvaluationErrorKind.EXCEPTION: return(ErrorException);
}
return(new Error(errorKind));
}
internal EvaluationEvent NewDefaultValueEvaluationEvent(
FeatureFlag flag,
User user,
LdValue defaultValue,
EvaluationErrorKind errorKind
)
{
return(new EvaluationEvent
{
Timestamp = UnixMillisecondTime.Now,
User = user,
FlagKey = flag.Key,
FlagVersion = flag.Version,
Value = defaultValue,
Default = defaultValue,
Reason = EvaluationReason.ErrorReason(errorKind),
TrackEvents = flag.TrackEvents,
DebugEventsUntilDate = flag.DebugEventsUntilDate
});
}
internal EvaluationDetail <JToken> ErrorResult(EvaluationErrorKind kind)
{
return(new EvaluationDetail <JToken>(null, null, new EvaluationReason.Error(kind)));
}
/// <summary>
/// Constructs a new Error instance.
/// </summary>
/// <param name="errorKind">the type of error</param>
public Error(EvaluationErrorKind errorKind) : base(EvaluationReasonKind.ERROR, -1, null, null, errorKind)
{
}
private static EvaluationDetail <LdValue> ErrorResult(EvaluationErrorKind kind) => new EvaluationDetail <LdValue>(LdValue.Null, null, EvaluationReason.ErrorReason(kind));
/// <summary>
/// Creates a feature request event for an evaluation that returned the default value
/// when the flag did not exist or the feature store was unavailable.
/// </summary>
/// <param name="key">the flag key that was requested</param>
/// <param name="user">the user passed to the Variation method</param>
/// <param name="defaultVal">the default value passed to the Variation method</param>
/// <param name="errorKind">the type of error</param>
/// <returns>an event</returns>
internal FeatureRequestEvent NewUnknownFeatureRequestEvent(string key, User user,
LdValue defaultVal, EvaluationErrorKind errorKind)
{
return(new FeatureRequestEvent(GetTimestamp(), key, user, null, defaultVal, defaultVal,
null, null, false, null, false,
IncludeReasons ? EvaluationReason.ErrorReason(errorKind) : null));
}
/// <summary>
/// Creates a feature request event for an evaluation that returned the default value
/// (i.e. an error), even though the flag existed.
/// </summary>
/// <param name="flag">abstraction of the basic flag properties we need</param>
/// <param name="user">the user passed to the Variation method</param>
/// <param name="defaultVal">the default value passed to the Variation method</param>
/// <param name="errorKind">the type of error</param>
/// <returns>an event</returns>
internal FeatureRequestEvent NewDefaultFeatureRequestEvent(IFlagEventProperties flag, User user,
LdValue defaultVal, EvaluationErrorKind errorKind)
{
return(new FeatureRequestEvent(GetTimestamp(), flag.Key, user, null, defaultVal, defaultVal,
flag.EventVersion, null, flag.TrackEvents, flag.DebugEventsUntilDate, false,
IncludeReasons ? EvaluationReason.ErrorReason(errorKind) : null));
}
/// <summary> /// Returns an EvaluationReason of the kind <see cref="EvaluationReasonKind.Error"/>. /// </summary> /// <param name="errorKind"></param> /// <returns>a reason descriptor</returns> public static EvaluationReason ErrorReason(EvaluationErrorKind errorKind) => new EvaluationReason(EvaluationReasonKind.Error, null, null, null, errorKind, false, null);
public static void WriteJsonValue(EvaluationErrorKind instance, IValueWriter writer) => writer.String(ToIdentifier((EvaluationErrorKind)instance));
internal EvaluationDetail <LdValue> ErrorResult(EvaluationErrorKind kind)
{
return(new EvaluationDetail <LdValue>(LdValue.Null, null, EvaluationReason.ErrorReason(kind)));
}