/**
   * @param changeSet the change set to add members to
   * @param loadTuner the load tuner to use
   */
  protected void addMemberObjectsToChangeSet(final ChangeSet changeSet, final LoadTuner loadTuner) {
    if (!isLoadingMembersEnabled(loadTuner)) {
      return;
    }
    ChangeSetMutator changeSetWithMembers = getChangeSetMutator(changeSet);

    Collection<BusinessObjectGroupMember> businessObjectGroupMembers =
        changeSetMemberDao.findGroupMembersByGroupId(changeSet.getGuid());

    Collection<BusinessObjectMetadata> memberObjectsMetadata = Collections.emptySet();

    if (isLoadingMembersMetadataEnabled(loadTuner)) {
      memberObjectsMetadata =
          changeSetMemberDao.findBusinessObjectMetadataByGroupId(changeSet.getGuid());
    }
    Collection<ChangeSetMember> memberObjects =
        changeSetHelper.convertGroupMembersToChangeSetMembers(
            businessObjectGroupMembers, memberObjectsMetadata);

    changeSetWithMembers.setMemberObjects(memberObjects);
  }
  @Override
  public ChangeSet add(final ChangeSet changeSet) {
    if (LOG.isDebugEnabled()) {
      LOG.debug("Add a change set: " + changeSet);
    }

    String groupId = changeSetMemberDao.generateChangeSetGroupId();
    changeSet.addAssignedUser(changeSet.getCreatedByUserGuid());

    // for consistency, always use the time service to set the created date
    changeSet.setCreatedDate(timeService.getCurrentTime());

    // if no state code was set the default is OPEN
    if (changeSet.getStateCode() == null) {
      changeSet.setStateCode(ChangeSetStateCode.OPEN);
    }

    getChangeSetMutator(changeSet).setObjectGroupId(groupId);
    return changeSetDao.add(changeSet);
  }