gistfile1.java

/**
	 * Get a list of UserSumRange objects that should be used in calculating data. Note that any returned UserSumRange could already be persistent
	 * 
	 * @param customer The customer to use
	 * @param startTime The time this process started in epoch milliseconds
	 * @param zone The Time
	 * @return
	 */
	private List<UserSumRange> getRanges(Customer customer, long startTime) {

		// the start date of our first registration range

		// get all open ranges for this customer
		List<UserSumRange> ranges = new ArrayList<UserSumRange>(userSumRangeDao.getOpenRanges(customer.getId(), 1000));

		//truncate our created date to be at exactly 00:00 on the day it was created
		DateTime createdDate = new DateTime(customer.getCreatedDate());
		
		DateTime startDateRange = new DateTime(createdDate.getYear(),createdDate.getMonthOfYear(), createdDate.getDayOfMonth(),	0, 0, 0, 0, customer.getTimeZone().getTimeZone());
		
		UserSumRange latest = getLast(ranges);

		// if there are no sum ranges, we've never generated anything for this
		// customer.
		// The customer MUST always have at least 1 open sum range.  Otherwise this process has never been run for them
		if (latest == null) {
			DateTime startDateEnd = startDateRange.plusMonths(1);

			latest = new UserSumRange();
			latest.setStart(startDateRange);
			latest.setEnd(startDateEnd);
			latest.setUserId(customer.getId());

			ranges.add(latest);
		}

		
		// add all sums required to bring us up to "current"
		while (latest.getEnd().isBefore(startTime)) {

			Months months = Months.monthsBetween(startDateRange, latest.getEnd());
			
			DateTime startDate = startDateRange.plus(months);
			DateTime endDate = startDateRange.plus(months.plus(1));
			
			UserSumRange newRange = new UserSumRange();
			newRange.setStart(startDate);
			newRange.setEnd(endDate);
			newRange.setUserId(customer.getId());

			ranges.add(newRange);

			latest = newRange;

		}

		return ranges;

	}