private PartETag uploadChunk(
ByteBuffer bytes, InitiateMultipartUploadResult initResponse, int index) throws Exception {
byte[] md5 = S3Utils.md5(bytes);
UploadPartRequest request = new UploadPartRequest();
request.setBucketName(initResponse.getBucketName());
request.setKey(initResponse.getKey());
request.setUploadId(initResponse.getUploadId());
request.setPartNumber(index);
request.setPartSize(bytes.limit());
request.setMd5Digest(S3Utils.toBase64(md5));
request.setInputStream(new ByteBufferInputStream(bytes));
UploadPartResult response = s3Client.uploadPart(request);
PartETag partETag = response.getPartETag();
if (!response.getPartETag().getETag().equals(S3Utils.toHex(md5))) {
throw new Exception("Unable to match MD5 for part " + index);
}
return partETag;
}
