public S3NotebookRepo(ZeppelinConfiguration conf) throws IOException {
this.conf = conf;
bucketName = conf.getBucketName();
user = conf.getUser();
// always use the default provider chain
AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
CryptoConfiguration cryptoConf = null;
String keyRegion = conf.getS3KMSKeyRegion();
if (StringUtils.isNotBlank(keyRegion)) {
cryptoConf = new CryptoConfiguration();
cryptoConf.setAwsKmsRegion(Region.getRegion(Regions.fromName(keyRegion)));
}
// see if we should be encrypting data in S3
String kmsKeyID = conf.getS3KMSKeyID();
if (kmsKeyID != null) {
// use the AWS KMS to encrypt data
KMSEncryptionMaterialsProvider emp = new KMSEncryptionMaterialsProvider(kmsKeyID);
if (cryptoConf != null) {
this.s3client = new AmazonS3EncryptionClient(credentialsProvider, emp, cryptoConf);
} else {
this.s3client = new AmazonS3EncryptionClient(credentialsProvider, emp);
}
} else if (conf.getS3EncryptionMaterialsProviderClass() != null) {
// use a custom encryption materials provider class
EncryptionMaterialsProvider emp = createCustomProvider(conf);
this.s3client = new AmazonS3EncryptionClient(credentialsProvider, emp);
} else {
// regular S3
this.s3client = new AmazonS3Client(credentialsProvider);
}
// set S3 endpoint to use
s3client.setEndpoint(conf.getEndpoint());
}
