private boolean isBlobTtlUpdated(BlobInfo blobInfo) {
    return blobInfo.getBlobProperties().getTimeToLiveInSeconds() == Utils.Infinite_Time;
  }
@param blobInfo {@link BlobInfo} object.
@return {@code true} if the blob is already ttl updated. {@code false} otherwise.
ambry-router/src/main/java/com/github/ambry/router/OperationController.java