/**
   * @param aggregatedVoteE
   * @return
   */
  public static Vote aggregatedVoteEntityToVoteMessage(AggregatedVoteE aggregatedVoteE) {

    // basic mapping for general vote entities
    Vote vote = voteEntityToVoteMessage(aggregatedVoteE);

    // map additional specific base attributes
    vote.setAggregation(true);

    if (aggregatedVoteE.getAggregationType() != null) {
      vote.setAggregationType(aggregatedVoteE.getAggregationType());
    } else {
      log.error("Required attribute 'aggregationType' missing");
      return null;
    }

    if (aggregatedVoteE.getClusterId() != null) {
      vote.setClusterId(aggregatedVoteE.getClusterId());
    } else {
      log.error("Required attribute 'clusterId' missing");
      return null;
    }

    // generate url links
    vote.setConfigurationUrl(genConfigUrl(aggregatedVoteE));
    vote.setVoteUrl(genUrl(aggregatedVoteE));
    vote.setEvaluationUrl(EvaluationMapper.genUrl(aggregatedVoteE.getAggregatorEvaluation()));

    return vote;
  }
 /**
  * @param singleVoteE is an single vote entity
  * @return the url of the single vote resource
  */
 public static String genUrl(AggregatedVoteE aggregatedVote) {
   String url =
       CVSrvContext.getInstance().getValuationServerUrlBase()
           + CVSrvContext.VOTE_BASE_URL_PREFIX
           + CVSrvContext.AGGREGATED_VOTE_URL_PREFIX
           + String.valueOf(aggregatedVote.getAggregatorEvaluation().getId())
           + "/"
           + String.valueOf(aggregatedVote.getId());
   return url;
 }
  /**
   * @param voteEList
   * @return
   */
  public static Votes aggregatedVoteEntitiesToVotes(List<AggregatedVoteE> voteEList) {

    if (voteEList == null) {
      log.error("Mapping request FOR null object");
      return null;
    }

    Votes votes = new Votes();

    for (AggregatedVoteE aggregatedVoteE : voteEList) {
      Votes.VoteEntry voteEntry = new Votes.VoteEntry();
      voteEntry.setVoteId(String.valueOf(aggregatedVoteE.getId()));
      voteEntry.setVoteUrl(genUrl(aggregatedVoteE));
      votes.getVoteEntry().add(voteEntry);
    }

    return votes;
  }