gov.va.medora.mdws.MdwsSvc.getMdwsSessions C# (CSharp) Method

        public ApplicationSessionsTO getMdwsSessions(string startDate, string endDate)
        {
            ApplicationSessionsTO result = new ApplicationSessionsTO();
            UsageDao dao = null;
            try
            {
                dao = new UsageDao();
            }
            catch (Exception exc)
            {
                result.fault = new FaultTO(exc);
                return result;
            }

            DateTime start = new DateTime();
            DateTime end = new DateTime();
            if (String.IsNullOrEmpty(startDate) || String.IsNullOrEmpty(endDate))
            {
                result.fault = new FaultTO("Must supply a start and a stop date");
            }
            else if (!DateTime.TryParse(startDate, out start))
            {
                result.fault = new FaultTO("Unable to parse start date", "Try a different date format");
            }
            else if (!DateTime.TryParse(endDate, out end))
            {
                result.fault = new FaultTO("Unable to parse end date", "Try a different date format");
            }
            if (start.Year < 2010 || end.Year < 2010)
            {
                result.fault = new FaultTO("No records exist from before 2010");
            }
            else if (end.CompareTo(start) < 0)
            {
                result.fault = new FaultTO("The end date must be the same or later than the start date");
            }
            else if (end.Subtract(start).TotalDays > 30)
            {
                result.fault = new FaultTO("You are only allowed to retrieve a 30 day window of session data");
            }

            if (result.fault != null)
            {
                return result;
            }

            try
            {
                result = dao.getSessions(start, end);
            }
            catch (Exception exc)
            {
                result.fault = new FaultTO(exc);
            }
            return result;
        }