private static String createFullKey(UUID jobId, String key) {
    Preconditions.checkArgument(!Strings.isNullOrEmpty(key));
    return format("%s-%s", jobId.toString(), key);
  }
Returns a model instance for the id of the given type or null if not found.
extensions/cloud/portability-cloud-local/src/main/java/org/datatransferproject/cloud/local/LocalJobStore.java