public Vote saveVote(Vote vote) throws Exception {
// totalRate = (((answer1 calculated rate)/q1 total rate)+(((answer2 calculated rate)/q2 total
// rate)+...)/(sum of all template question's wight)
// MultipleChoice answer rate and "total rate" will be evaluated according to selected options
// Rating answer rate is "value/maxRate"
vote.setTotalRate(calculateVoteTotalRate(vote));
return (Vote) voteDao.save(vote);
}
private int calculateVoteTotalRate(Vote vote) {
BibliographicPollingTemplate template =
(BibliographicPollingTemplate) vote.getPollingTemplate();
template =
(BibliographicPollingTemplate)
voteDao.getById(AbstractPollingTemplate.class, template.getId());
List<AbstractTemplateQuestion> templateQuestions = template.getQuestionList();
int totalWeight = 0;
for (int i = 0; i < templateQuestions.size(); i++) {
totalWeight += templateQuestions.get(i).getWeight();
}
float totalRate = 0;
List<AbstractQuestionAnswer> questionAnswers = vote.getQuestionAnswer();
for (int i = 0; i < questionAnswers.size(); i++) {
int questionWeight = 0;
int questionTotalRate = 0;
int answerTotalRate = 0;
AbstractQuestionAnswer questionAnswer = questionAnswers.get(i);
questionWeight = questionAnswer.getQuestion().getWeight();
if (questionAnswer instanceof MultipleChoiceQuestionAnswer) {
questionTotalRate =
calculateOptionsTotalRate(
(MultipleChoicePollingQuestion) questionAnswer.getQuestion().getQuestion());
answerTotalRate = 0;
List<PollingAnswerOption> optionList =
((MultipleChoiceQuestionAnswer) questionAnswers.get(i)).getOptionList();
for (int j = 0; j < optionList.size(); j++) {
PollingAnswerOption pollingAnswerOption = optionList.get(j);
answerTotalRate += pollingAnswerOption.getPollingOption().getWeight();
}
} else if (questionAnswer instanceof RatingQuestionAnswer) {
questionTotalRate =
((RatingTemplateQuestion) ((RatingQuestionAnswer) questionAnswer).getQuestion())
.getMaxValue();
answerTotalRate = ((RatingQuestionAnswer) questionAnswer).getValue();
}
totalRate +=
((new Integer(answerTotalRate)).floatValue()
/ (new Integer(questionTotalRate)).floatValue())
* questionWeight;
}
return Math.round(((totalRate / totalWeight) * 100));
}