[C++] read encrypted ORC file

[zxf216]

What changes were proposed in this pull request?

you can use C++ version code to read encrypted ORC files
ORC file structure：links

Why are the changes needed?

The C++ version is not yet able to read encrypted ORC files now

How was this patch tested?

orc::RowReaderOptions rowReaderOptions;
orc::ReaderOptions readerOpts;
std::shared_ptr<orc::InMemoryKeystore> keyStore = std::make_shared<orc::InMemoryKeystore>();
std::string passKey ="secret123";
keyStore->addKey("pii", 0, orc::EncryptionAlgorithm::AES_CTR_128,passKey);
readerOpts.setKeyProvider(keyStore);
printContents("/root/encryption.orc",readerOpts, rowReaderOptions);

[dongjoon-hyun]

Thank you for making a PR, @zxf216 .

We have been tracking this via

• Add C++ API for Columnar Encryption #1183

BTW, could you make the CI happy by fixing all failures?

[wgtmac]

Thanks @zxf216! Let me take a first pass. cc @coderex2522 @ffacs

[zxf216]

Thank you for making a PR, @zxf216 .

We have been tracking this via

• Add C++ API for Columnar Encryption #1183

BTW, could you make the CI happy by fixing all failures?
Okay

[dongjoon-hyun]

I converted it to Draft because CIs fails still.

[wgtmac]

Thanks @zxf216 again for the excellent work! I just took a preliminary look and have left some inline comments. As you can see that we have various CI jobs for test cases, code format, license check, etc. I strongly recommend splitting the PR into smaller ones to make the review process easier.

[wgtmac]

Please revert the unnecessary change.

[wgtmac]

The c++/include/orc folder is public and files in it will be installed. If the KeyProvider is also public, please move its definition to the include folder as well. Otherwise, we should remove the related function from here.

[wgtmac]

Please note that we have a license check which does not allow custom modification to the license header in this repo. I'm not sure if this violates any ASF rule to add something like this. @dongjoon-hyun Do you have any concern?

[wgtmac]

Please use English for comment.