pvary commented on code in PR #2639:
URL: https://github.com/apache/iceberg/pull/2639#discussion_r1071109266
##########
parquet/src/main/java/org/apache/iceberg/parquet/Parquet.java:
##########
@@ -231,6 +252,39 @@ private WriteBuilder createContextFunc(
return this;
}
+ private FileEncryptionProperties createEncryptionProperties(
+ NativeFileCryptoParameters nativeParameters) {
+ Preconditions.checkArgument(nativeParameters != null, "Null native
crypto parameters");
+
+ ParquetCipher parquetEncryptionAlgorithm;
+ if (nativeParameters.encryptionAlgorithm() == null) {
+ parquetEncryptionAlgorithm = ParquetCipher.AES_GCM_V1; // default
+ LOG.info("No encryption algorithm specified. Using Parquet default -
AES_GCM_V1");
+ } else {
+ EncryptionAlgorithm icebergEncryptionAlgorithm =
nativeParameters.encryptionAlgorithm();
+ if (icebergEncryptionAlgorithm.equals(EncryptionAlgorithm.AES_GCM)) {
+ parquetEncryptionAlgorithm = ParquetCipher.AES_GCM_V1;
+ } else if
(icebergEncryptionAlgorithm.equals(EncryptionAlgorithm.AES_GCM_CTR)) {
+ parquetEncryptionAlgorithm = ParquetCipher.AES_GCM_CTR_V1;
+ } else {
+ throw new ParquetCryptoRuntimeException(
+ "Can't create parquet encryption properties - "
+ + "unsupported algorithm: "
+ + nativeParameters.encryptionAlgorithm());
+ }
+ }
+
+ ByteBuffer footerDataKey = nativeParameters.fileKey();
+ if (null == footerDataKey) {
+ throw new ParquetCryptoRuntimeException(
+ "Can't create parquet encryption properties - " + "missing key for
parquet footer");
Review Comment:
Nit: Extra `+`
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