- Run MinIO with a single secret key. MinIO supports a static cryptographic key
  that can act as minimal KMS. With this method all IAM data will be stored
  encrypted. The encryption key has to be passed as environment variable.
- Run MinIO with KES (minio/kes) in combination with any supported KMS as
  secure key store. For example, you can run MinIO + KES + Hashicorp Vault.

	// ErrDuplicatedKey occurs when there is a unique key constraint violation
	ErrDuplicatedKey = errors.New("duplicated key not allowed")
	// ErrForeignKeyViolated occurs when there is a foreign key constraint violation
	ErrForeignKeyViolated = errors.New("violates foreign key constraint")
	// ErrCheckConstraintViolated occurs when there is a check constraint violation

     * Get the passphrase of the private key file. The passphrase is used only when host/protocol supports
     * authentication via exchange of private/public keys and private key was used for authentication.
     *
     * @return passphrase of the private key file
     */
    public String getPassphrase() {
        return passphrase;
    }

    /**
     * Set the passphrase of the private key file.
     *

  }

  @SuppressWarnings("unchecked") // Safe because we only cast if key is found in map.
  @Override
  @Nullable V get(Object key) {
    checkNotNull(key);
    V value = getIfCached(key);
    if (value != null) {
      return value;
    }

    value = getWithoutCaching(key);
    if (value != null) {
      addToCache((K) key, value);
    }
    return value;
  }

 *
 * {@snippet :
 * LoadingCache<Key, Graph> graphs = CacheBuilder.newBuilder()
 *     .maximumSize(10000)
 *     .expireAfterWrite(Duration.ofMinutes(10))
 *     .removalListener(MY_LISTENER)
 *     .build(
 *         new CacheLoader<Key, Graph>() {
 *           public Graph load(Key key) throws AnyException {
 *             return createExpensiveGraph(key);
 *           }
 *         });
 * }
 *

package api

import "github.com/minio/minio/internal/config"

var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help holds configuration keys and their default values for api subsystem.
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         apiRequestsMax,
			Description: `set the maximum number of concurrent requests (default: auto)`,

  }

  private long runAddSingleThread(int reps) {
    Random random = new Random();
    int nKeys = keys.size();
    long blah = 0;
    for (int i = 0; i < reps; i++) {
      Integer key = keys.get(random.nextInt(nKeys));
      int delta = random.nextInt(5);
      blah += delta;
      multiset.add(key, delta);
    }
    return blah;
  }

  private long runAddRemoveSingleThread(int reps) {

  @SuppressWarnings("Immutable") // keys are immutable, but not provably so
  private final Key key;

  private final String toString;
  private final int bits;
  private final boolean supportsClone;

  MacHashFunction(String algorithmName, Key key, String toString) {
    this.prototype = getMac(algorithmName, key);
    this.key = checkNotNull(key);
    this.toString = checkNotNull(toString);

	EnvILMExpirationWorkers = "MINIO_ILM_EXPIRATION_WORKERS"
)

var (
	defaultHelpPostfix = func(key string) string {
		return config.DefaultHelpPostfix(DefaultKVS, key)
	}

	// Help holds configuration keys and their default values for the ILM
	// subsystem
	Help = config.HelpKVS{
		config.HelpKV{
			Key:         transitionWorkers,
			Type:        "number",

		return errXMLNotWellFormed
	}
	return nil
}

// ContainsDuplicateTag - returns true if duplicate keys are present in And
func (a And) ContainsDuplicateTag() bool {
	x := make(map[string]struct{}, len(a.Tags))

	for _, t := range a.Tags {
		if _, has := x[t.Key]; has {
			return true
		}
		x[t.Key] = struct{}{}
	}

	return false
}

// BySize returns true when sz satisfies a