Examples with KMSEncryptionMaterialsProvider com.amazonaws.services.s3.model.KMSEncryptionMaterialsProvider used on opensource projects

Example 1 with KMSEncryptionMaterialsProvider

use of com.amazonaws.services.s3.model.KMSEncryptionMaterialsProvider in project presto by prestodb.

the class PrestoS3FileSystem method createEncryptionMaterialsProvider.

private static Optional<EncryptionMaterialsProvider> createEncryptionMaterialsProvider(Configuration hadoopConfig) {
    String kmsKeyId = hadoopConfig.get(S3_KMS_KEY_ID);
    if (kmsKeyId != null) {
        return Optional.of(new KMSEncryptionMaterialsProvider(kmsKeyId));
    }
    String empClassName = hadoopConfig.get(S3_ENCRYPTION_MATERIALS_PROVIDER);
    if (empClassName == null) {
        return Optional.empty();
    }
    try {
        Object instance = Class.forName(empClassName).getConstructor().newInstance();
        if (!(instance instanceof EncryptionMaterialsProvider)) {
            throw new RuntimeException("Invalid encryption materials provider class: " + instance.getClass().getName());
        }
        EncryptionMaterialsProvider emp = (EncryptionMaterialsProvider) instance;
        if (emp instanceof Configurable) {
            ((Configurable) emp).setConf(hadoopConfig);
        }
        return Optional.of(emp);
    } catch (ReflectiveOperationException e) {
        throw new RuntimeException("Unable to load or create S3 encryption materials provider: " + empClassName, e);
    }
}