@JsonIgnore
  @ApiIgnore
  public Optional<StackId> getStackId() {
    return null != stackName && null != stackVersion
      ? Optional.of(new StackId(stackName, stackVersion)) : Optional.empty();
  }
Data object representing an add service request.
ambari-server/src/main/java/org/apache/ambari/server/topology/addservice/AddServiceRequest.java