/// <summary>
/// Creates a new credentials instance of type T using the set of
/// registered cloud credentials providers and provided settings.
/// </summary>
/// <typeparam name="T">The requested minimum type of cloud credentials
/// for successful credential use.</typeparam>
/// <param name="settings">Dictionary of configuration settings.</param>
/// <param name="isRequired">Provides a value indicating whether to
/// throw if the minimum requested credentials type cannot be found.
/// Defaults to true.</param>
/// <returns>Returns a new instance of the first provider that supports
/// the provided settings.</returns>
public static T GetCredentials <T>(IDictionary <string, object> settings, bool isRequired = true)
where T : CloudCredentials
{
T credentials = CloudConfiguration.CreateCloudCredentials <T>(settings);
if (credentials == null && isRequired)
{
throw new InvalidOperationException(
string.Format(
CultureInfo.InvariantCulture,
Properties.Resources.ConfigurationHelper_GetCredentials_NotFound,
typeof(T).Name));
}
return(credentials);
}