SummaryProviderServiceImpl

	private int MAX_PROVIDER_ID = 0;

	public Map<String, Object> summaryProvider() throws Exception {
		DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
		String previousYear = dateFormat.format(getPreviousYear());
		String yesterday = dateFormat.format(yesterday());
		Map<String, Object> json = new HashMap<String, Object>();
		Map<String, Object> fromCache = cacheManager.get("summaryProvider", "FAV_PROVIDER_ID", Map.class);
		if (fromCache != null) {
			return fromCache;
		} else {
			try {
				List<VotingDTO> votes = votingRepository.findByDate(previousYear);
				if (votes.size() > 0) {
					favProvider(votes);
				} else {
					List<VotingDTO> yesterdayVotes = votingRepository.findByDate(yesterday);
					if (yesterdayVotes.size() > 0) {
						favProvider(yesterdayVotes);
					}
				}
			} catch (Exception e) {
				System.out.println(e);
			}
			json.put("FAV_PROVIDER_ID", MAX_PROVIDER_ID);
			cacheManager.put("summaryProvider", "FAV_PROVIDER_ID", json);
			cacheManager.expire("summaryProvider");
		}
		Map<String, Object> fromCacheAfterAdd = cacheManager.get("summaryProvider", "FAV_PROVIDER_ID", Map.class);
		return fromCacheAfterAdd;
	}

	private int favProvider(List<VotingDTO> votes) {
		List<Integer> providerIDS = new ArrayList<Integer>();
		for (VotingDTO vote : votes) {
			providerIDS.add(vote.getProvider().getId());
		}
		int maxCounter = 0;
		for (int index = 0; index < providerIDS.size(); index++) {
			int counter = 1;
			for (int innerIndex = index + 1; innerIndex < providerIDS.size(); innerIndex++) {
				if (providerIDS.get(index) == providerIDS.get(innerIndex)) {
					counter++;
				}
			}
			if (maxCounter < counter) {
				maxCounter = counter;
				MAX_PROVIDER_ID = providerIDS.get(index);
			}
		}
		return MAX_PROVIDER_ID;
	}

}