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pawelpluta/WashingController.java Secret

Last active Oct 8, 2020
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Article: The OOP has been explained wrongly to you - solution
class WashingController {
private final WashingService washingService;
WashingController(WashingService washingService) {
this.washingService = washingService;
}
void washWool() {
Collection<LaundryElement> laundry = getAllLaundry().stream()
.filter(WoolLaundryElement.class::isInstance).collect(toList());
WashingMachine washingMachine = new WashingMachine();
Integer spinSpeed = getRequestedSpinSpeed();
Integer temperature = getRequestedTemperature();
washingService.washWool(washingMachine, laundry, spinSpeed, temperature);
}
void washCotton() {
Collection<LaundryElement> laundry = getAllLaundry().stream()
.filter(CottonLaundryElement.class::isInstance).collect(toList());
WashingMachine washingMachine = new WashingMachine();
Integer spinSpeed = getRequestedSpinSpeed();
Integer temperature = getRequestedTemperature();
washingService.washCotton(washingMachine, laundry, spinSpeed, temperature);
}
void washSilk() {
Collection<LaundryElement> laundry = getAllLaundry().stream()
.filter(SilkLaundryElement.class::isInstance).collect(toList());
WashingMachine washingMachine = new WashingMachine();
Integer spinSpeed = getRequestedSpinSpeed();
Integer temperature = getRequestedTemperature();
washingService.washSilk(washingMachine, laundry, spinSpeed, temperature);
}
private Collection<LaundryElement> getAllLaundry() {
Collection<LaundryElement> allLaundry = new ArrayList<>();
// fill the allLaundry collection with available laundry by any way,
// e.g. obtaining it from repositories, providers, services
return allLaundry;
}
private Integer getRequestedSpinSpeed() {
return new Random().nextInt(1200);
}
private Integer getRequestedTemperature() {
return new Random().nextInt(95);
}
}
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