@Override
  public void purge(List<MessageInfo> infosToPurge) throws StoreException {
    throw new UnsupportedOperationException("Method not supported");
  }
Utility to decide whether a blob should be uploaded.
@param messageInfo The {@link MessageInfo} containing the blob metadata.
@return {@code true} is the blob should be upload, {@code false} otherwise.
ambry-cloud/src/main/java/com/github/ambry/cloud/CloudBlobStore.java