wgtmac commented on code in PR #36574:
URL: https://github.com/apache/arrow/pull/36574#discussion_r1338814429
##########
cpp/src/parquet/encryption/internal_file_decryptor.cc:
##########
@@ -215,4 +217,53 @@ std::shared_ptr<Decryptor>
InternalFileDecryptor::GetColumnDecryptor(
return column_data_map_[column_path];
}
+namespace {
+
+std::shared_ptr<Decryptor> GetColumnDecryptor(
+ const ColumnCryptoMetaData* crypto_metadata, InternalFileDecryptor*
file_decryptor,
+ const std::function<std::shared_ptr<Decryptor>(
+ InternalFileDecryptor* file_decryptor, const std::string& column_path,
+ const std::string& column_key_metadata, const std::string& aad)>&
func) {
+ if (crypto_metadata == nullptr) {
+ return nullptr;
+ }
+
+ if (file_decryptor == nullptr) {
+ throw ParquetException("RowGroup is noted as encrypted but no file
decryptor");
+ }
+
+ if (crypto_metadata->encrypted_with_footer_key()) {
+ return file_decryptor->GetFooterDecryptorForColumnMeta();
Review Comment:
Good catch! Sorry for the mistake made by the copy-and-paste.
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