public void Accrue(RentalAgreement agreement)
{
// defensive programming
if (agreement == null)
{
throw new ArgumentNullException("agreement");
}
// logging
Console.WriteLine("Accrue: {0}", DateTime.Now);
Console.WriteLine("Customer: {0}", agreement.Customer.Id);
Console.WriteLine("Vehicle: {0}", agreement.Vehicle.Id);
var rentalTimeSpan =
(agreement.EndDate.Subtract(agreement.StartDate));
var numberOfDays = (int)Math.Floor(rentalTimeSpan.TotalDays);
var pointsPerDay = 1;
if (agreement.Vehicle.Size >= Size.Luxury)
{
pointsPerDay = 2;
}
var points = numberOfDays * pointsPerDay;
_loyaltyDataService.AddPoints(agreement.Customer.Id, points);
// logging
Console.WriteLine("Accrue complete: {0}", DateTime.Now);
}
public void Accrue(RentalAgreement agreement)
{
var pointsPerDay = 1;
var rentalTimeSpan = agreement.EndDate.Subtract(agreement.StartDate);
var numberOfDays = (int)Math.Floor(rentalTimeSpan.TotalDays);
if (agreement.Vehicle.Size > Size.FullSize)
{
pointsPerDay = 2;
}
var totalPoints = numberOfDays * pointsPerDay;
_dataService.AddPoints(agreement.Customer.Id, totalPoints);
}
public void Accrue(RentalAgreement agreement)
{
// defensive programming
if (agreement == null)
{
throw new ArgumentNullException("agreement");
}
// logging
Console.WriteLine("Accrue: {0}", DateTime.Now);
Console.WriteLine("Customer: {0}", agreement.Customer.Id);
Console.WriteLine("Vehicle: {0}", agreement.Vehicle.Id);
// exception handling
try
{
// start new transaction
using (var scope = new TransactionScope())
{
// retry up to three times
var retries = 3;
var succeeded = false;
while (!succeeded)
{
try
{
var rentalTime =
(agreement.EndDate.Subtract(
agreement.StartDate));
var days = (int)Math.Floor(rentalTime.TotalDays);
var pointsPerDay = 1;
if (agreement.Vehicle.Size >= Size.Luxury)
{
pointsPerDay = 2;
}
var pts = days * pointsPerDay;
_dataService.AddPoints(agreement.Customer.Id, pts);
// complete transaction
scope.Complete();
succeeded = true;
}
catch
{
// don't re-throw until the
// retry limit is reached
if (retries >= 0)
{
retries--;
}
else
{
throw;
}
}
}
}
}
catch (Exception ex)
{
if (!Exceptions.Handle(ex))
{
throw;
}
}
// logging
Console.WriteLine("Accrue complete: {0}", DateTime.Now);
}