public KeyValuePairCollection Map(string line)
{
var data = line.Split(',');
if (LineIsFromAccidentStats(data))
{
//if (VehicleWasLessThanOneYearOldAtTimeOfAccident(data))
//{
var manufacturer = data[22].ToUpper();
var accidentStats = new AccidentStats {
NoOfAccidents = 1
};
var mostAccidentProneKvp = new MostAccidentProneKvp(manufacturer, accidentStats);
return(new KeyValuePairCollection {
mostAccidentProneKvp
});
//}
}
else
{
var manufacturer = data[0].ToUpper();
var noOfRegistrations = ParseDirtyInt(data[2]);
var accidentStats = new AccidentStats {
NoOfCarsRegistered = noOfRegistrations
};
var mostAccidentProneKvp = new MostAccidentProneKvp(manufacturer, accidentStats);
return(new KeyValuePairCollection {
mostAccidentProneKvp
});
}
return(new KeyValuePairCollection());
}
private AccidentStats ReduceAccidentStats(AccidentStats stats1, AccidentStats stats2)
{
var newNoOfAccidents = stats1.NoOfAccidents + stats2.NoOfAccidents;
var newNoOfCarsRegistered = stats1.NoOfCarsRegistered + stats2.NoOfCarsRegistered;
return(new AccidentStats
{
NoOfAccidents = newNoOfAccidents,
NoOfCarsRegistered = newNoOfCarsRegistered,
RegistrationsPerAccident = (double)newNoOfCarsRegistered / newNoOfAccidents
});
}
