How to use

getETag

method

in

com.amazonaws.services.s3.transfer.model.UploadResult

  @Override
  public String call() throws Exception {
    return upload.waitForUploadResult().getETag();
  }
}, OPERATION_MPU);

@Override
public void put(String uri, File f) throws AmazonClientException {
  LOG.trace("Uploading " + uri);
  String[] parts = pieces(uri);
  ObjectMetadata om = new ObjectMetadata();
  om.setContentLength(f.length());
  if (f.getName().endsWith("gzip")) {
    om.setContentEncoding("gzip");
  }
  uploadsInProgress.incrementAndGet();
  try {
    PutObjectRequest req = new PutObjectRequest(parts[0],parts[1],f);
    req.setMetadata(om);
    UploadResult resp = svc.upload(req).waitForUploadResult();
    LOG.trace("Uploaded " + uri + " with ETag " + resp.getETag());
  } catch (InterruptedException ie) {
    LOG.error("Interrupted while uploading {} to {}.",
        f.getPath(), uri);
    throw Throwables.propagate(ie);
  } finally {
    uploadsInProgress.decrementAndGet();
  }
}

UploadResult result = transferManager.upload(req).waitForUploadResult();
return result.getETag();