src/main/java/com/amazonaws/encryptionsdk/kms/KmsMasterKeyProvider.java [224:272]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    public KmsMasterKeyProvider buildDiscovery() {
      final boolean isDiscovery = true;
      RegionalClientSupplier supplier = clientFactory();

      return new KmsMasterKeyProvider(
          supplier, defaultRegion_, emptyList(), emptyList(), isDiscovery, discoveryFilter_);
    }

    /**
     * Builds the master key provider in Discovery Mode with a {@link DiscoveryFilter}. In Discovery
     * Mode the KMS Master Key Provider will attempt to decrypt using any key identifier it
     * discovers in the encrypted message that is accepted by the {@code filter}. KMS Master Key
     * Providers in Discovery Mode will not encrypt data keys.
     *
     * @param filter
     * @return
     */
    public KmsMasterKeyProvider buildDiscovery(DiscoveryFilter filter) {
      if (filter == null) {
        throw new IllegalArgumentException(
            "Discovery filter must not be null if specifying " + "a discovery filter.");
      }
      discoveryFilter_ = filter;

      return buildDiscovery();
    }

    /**
     * Builds the master key provider in Strict Mode. KMS Master Key Providers in Strict Mode will
     * only attempt to decrypt using key ARNs listed in {@code keyIds}. KMS Master Key Providers in
     * Strict Mode will encrypt data keys using the keys listed in {@code keyIds}
     *
     * <p>In Strict Mode, one or more CMKs must be provided. For providers that will only be used
     * for encryption, you can use any valid KMS key identifier. For providers that will be used for
     * decryption, you must use the key ARN; key ids, alias names, and alias ARNs are not supported.
     *
     * @param keyIds
     * @return
     */
    public KmsMasterKeyProvider buildStrict(List<String> keyIds) {
      if (keyIds == null) {
        throw new IllegalArgumentException(
            "Strict mode must be configured with a non-empty " + "list of keyIds.");
      }

      final boolean isDiscovery = false;
      RegionalClientSupplier supplier = clientFactory();

      return new KmsMasterKeyProvider(
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



src/main/java/com/amazonaws/encryptionsdk/kmssdkv2/KmsMasterKeyProvider.java [147:195]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    public KmsMasterKeyProvider buildDiscovery() {
      final boolean isDiscovery = true;
      RegionalClientSupplier supplier = clientFactory();

      return new KmsMasterKeyProvider(
          supplier, defaultRegion_, emptyList(), emptyList(), isDiscovery, discoveryFilter_);
    }

    /**
     * Builds the master key provider in Discovery Mode with a {@link DiscoveryFilter}. In Discovery
     * Mode the KMS Master Key Provider will attempt to decrypt using any key identifier it
     * discovers in the encrypted message that is accepted by the {@code filter}. KMS Master Key
     * Providers in Discovery Mode will not encrypt data keys.
     *
     * @param filter
     * @return
     */
    public KmsMasterKeyProvider buildDiscovery(DiscoveryFilter filter) {
      if (filter == null) {
        throw new IllegalArgumentException(
            "Discovery filter must not be null if specifying " + "a discovery filter.");
      }
      discoveryFilter_ = filter;

      return buildDiscovery();
    }

    /**
     * Builds the master key provider in Strict Mode. KMS Master Key Providers in Strict Mode will
     * only attempt to decrypt using key ARNs listed in {@code keyIds}. KMS Master Key Providers in
     * Strict Mode will encrypt data keys using the keys listed in {@code keyIds}
     *
     * <p>In Strict Mode, one or more CMKs must be provided. For providers that will only be used
     * for encryption, you can use any valid KMS key identifier. For providers that will be used for
     * decryption, you must use the key ARN; key ids, alias names, and alias ARNs are not supported.
     *
     * @param keyIds
     * @return
     */
    public KmsMasterKeyProvider buildStrict(List<String> keyIds) {
      if (keyIds == null) {
        throw new IllegalArgumentException(
            "Strict mode must be configured with a non-empty " + "list of keyIds.");
      }

      final boolean isDiscovery = false;
      RegionalClientSupplier supplier = clientFactory();

      return new KmsMasterKeyProvider(
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -