Amazon.Runtime.FallbackCredentialsFactory.GetCredentials C# (CSharp) 메소드

        internal static AWSCredentials GetCredentials()
        {
            AWSCredentials credentials = null;
            List<Exception> errors = new List<Exception>();

            foreach (CredentialsGenerator generator in CredentialsGenerators)
            {
                try
                {
                    credentials = generator();
                }
                catch (Exception e)
                {
                    credentials = null;
                    errors.Add(e);
                }

                if (credentials != null)
                    return credentials;
            }

            if (credentials == null)
            {
                using (StringWriter writer = new StringWriter(CultureInfo.InvariantCulture))
                {
                    writer.WriteLine("Unable to find credentials");
                    writer.WriteLine();
                    for (int i = 0; i < errors.Count; i++)
                    {
                        Exception e = errors[i];
                        writer.WriteLine("Exception {0} of {1}:", i + 1, errors.Count);
                        writer.WriteLine(e.ToString());
                        writer.WriteLine();
                    }

                    throw new AmazonServiceException(writer.ToString());
                }
            }

            return credentials;
        }
    }