SHA_384("SHA-384", Hashing.sha384()),
    SHA_512("SHA-512", Hashing.sha512());

    private final String algorithmName;
    private final HashFunction hashFn;

    Algorithm(String algorithmName, HashFunction hashFn) {
      this.algorithmName = algorithmName;
      this.hashFn = hashFn;
    }

    MessageDigest getMessageDigest() {
      try {
        return MessageDigest.getInstance(algorithmName);

    SHA_384("SHA-384", Hashing.sha384()),
    SHA_512("SHA-512", Hashing.sha512());

    private final String algorithmName;
    private final HashFunction hashFn;

    Algorithm(String algorithmName, HashFunction hashFn) {
      this.algorithmName = algorithmName;
      this.hashFn = hashFn;
    }

    MessageDigest getMessageDigest() {
      try {
        return MessageDigest.getInstance(algorithmName);

func (c Config) HasExistingObjectReplication(arn string) (hasARN, isEnabled bool) {
	for _, rule := range c.Rules {
		if rule.Destination.ARN == arn || c.RoleArn == arn {
			if !hasARN {
				hasARN = true
			}
			if rule.ExistingObjectReplication.Status == Enabled {
				return true, true
			}
		}
	}
	return hasARN, false
}