/// <summary>
/// Retrieves a string setting value using a string key name from the configuration hub. If there is a fallback provider registered
/// for strings then this fallback provider will be called. If the default appconfig provider is registerd this will also be called.
/// </summary>
/// <param name="settingName">The key identifying the setting</param>
/// <param name="mustBePresent">Boolean, defaults to false. Set to true if an exception should be thrown if no value can be found.</param>
/// <returns>A string based value indicating the setting</returns>
public string GetSetting(string settingName, bool mustBePresent = false, bool isEncrypted = false)
{
b.Info.Flow($"{settingName},{mustBePresent}");
string val = null;
if (functionList.ContainsKey(settingName))
{
b.Verbose.Log($"Direct Retrieval Funcation Call Made");
val = functionList[settingName]();
}
if (val == null)
{
foreach (var v in fallbackList1)
{
b.Verbose.Log($"Fallback Function Call");
val = v(settingName);
if (val != null)
{
b.Verbose.Log($"Value Found {val}");
break;
}
}
}
if ((val != null) && (isEncrypted))
{
b.Verbose.Log("Encrypted - Running through registered decryptor");
val = CryptoProvider.DecryptValue(val);
}
if ((val == null) && (mustBePresent))
{
b.Warning.Log("Value not matched, and must be present set - throwing exception");
throw new ConfigHubMissingConfigException($"The setting {settingName ?? "null"} must be present and have a value.");
}
b.Verbose.Log($"{settingName}={val}");
return(val);
}