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kotlin 5 #65

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5 changes: 5 additions & 0 deletions src/main/kotlin/ru/otus/cars/Car.kt
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Expand Up @@ -19,6 +19,11 @@ interface Car : CarInput {
*/
val carOutput: CarOutput

/**
* Топливная горловина
*/
val tankMouth: TankMouth

/**
* Получить оборудование
*/
Expand Down
4 changes: 2 additions & 2 deletions src/main/kotlin/ru/otus/cars/CarFactory.kt
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Expand Up @@ -18,7 +18,7 @@ object Togliatti : CarFactory {
println("Запил ${Vaz2107.MODEL} в Тольятти...")
val vaz = Vaz2107.build(plates)
println("Проверяем тачку...")
Vaz2107.test(vaz)
Vaz2107.test(vaz as Vaz2107)
vaz.drdrdrdrdr()
return vaz
}
Expand All @@ -27,7 +27,7 @@ object Togliatti : CarFactory {
println("Запил ${Vaz2108.MODEL} в Тольятти...")
val vaz = Vaz2108.build(plates)
println("Сход-развал...")
Vaz2108.alignWheels(vaz)
Vaz2108.alignWheels(vaz as Vaz2108)
vaz.zhzhzhzh()
return vaz
}
Expand Down
1 change: 1 addition & 0 deletions src/main/kotlin/ru/otus/cars/CarOutput.kt
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Expand Up @@ -8,4 +8,5 @@ interface CarOutput {
* Скажи текущую скорость
*/
fun getCurrentSpeed(): Int
fun getTankContents(): Int
}
30 changes: 30 additions & 0 deletions src/main/kotlin/ru/otus/cars/FuelStation.kt
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@@ -0,0 +1,30 @@
package ru.otus.cars

interface FuelStationInterface {
fun refuel(tankMouth: TankMouth, volume: Int): RefuelResult
}

enum class RefuelResult {
DONE,
ERROR
}

class FuelStation : FuelStationInterface {
override fun refuel(tankMouth: TankMouth, volume: Int): RefuelResult {
try {
tankMouth.open()
when (tankMouth) {
is TankMouth.LpgTankMouth -> tankMouth.fuelLpg(volume)
is TankMouth.PetrolTankMouth -> tankMouth.fuelPetrol(volume)
}
tankMouth.close()
return RefuelResult.DONE
} catch (e: TankMouthException) {
println(e.message)
return RefuelResult.ERROR
} catch (e: Throwable) {
println("Что-то не так. Прекратили все работы.")
return RefuelResult.ERROR
}
}
}
44 changes: 44 additions & 0 deletions src/main/kotlin/ru/otus/cars/Tank.kt
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@@ -0,0 +1,44 @@
package ru.otus.cars

open class Tank(val initialVolume: Int) : TankInterface {

private var volume: Int = initialVolume
get() {
if (field <= 0) throw Exception("Tank volume should be more than zero")
return field
}
set(value) {
if (value <= 0) throw Exception("Tank volume should be more than zero")
field = value
}

private var fuelBalance: Int = 0

override fun getContents(): Int = fuelBalance

override fun receiveFuel(liters: Int) {
when {
liters < 0 -> throw TankException("Liters can't be negative")
liters + fuelBalance > volume -> {
fuelBalance = volume
throw TankException("Tank full")
}

liters + fuelBalance <= volume -> fuelBalance += liters
}
}

override fun toString(): String {
return "Tank(volume=$volume, fuelBalance=$fuelBalance)"
}


}


interface TankInterface {
fun getContents(): Int
fun receiveFuel(liters: Int)
}

class TankException(message: String) : Exception(message)
68 changes: 68 additions & 0 deletions src/main/kotlin/ru/otus/cars/TankMouth.kt
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@@ -0,0 +1,68 @@
package ru.otus.cars


interface TankMouthInterface {
fun open()
fun close()
}

sealed class TankMouth : TankMouthInterface {
protected lateinit var tank: TankInterface

protected fun buildWithTank(tank: TankInterface): TankMouth {
this.tank = tank
return this
}

protected fun receiveFuel(liters: Int) {
try {
tank.receiveFuel(liters)
} catch (e: TankException) {
throw TankMouthException(e.message ?: "Tank mouth error")
}
}

fun getContents() : Int = tank.getContents()

enum class TankMouthState { OPEN, CLOSED }

private var state: TankMouthState = TankMouthState.CLOSED
override fun open() {
state = TankMouthState.OPEN
}

override fun close() {
state = TankMouthState.CLOSED
}

class PetrolTankMouth private constructor(): TankMouth() {
companion object {
fun build(tank: TankInterface) : TankMouth {
return PetrolTankMouth().buildWithTank(tank)
}
}

fun fuelPetrol(liters: Int) = super.receiveFuel(liters)

override fun toString(): String {
return "PetrolTankMouth($tank)"
}
}

class LpgTankMouth private constructor(): TankMouth() {
companion object {
fun build(tank: TankInterface) : TankMouth {
return LpgTankMouth().buildWithTank(tank)
}
}
fun fuelLpg(liters: Int) = super.receiveFuel(liters)

override fun toString(): String {
return "LpgTankMouth($tank)"
}
}
}



class TankMouthException(message: String) : Exception(message)
9 changes: 9 additions & 0 deletions src/main/kotlin/ru/otus/cars/Taz.kt
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Expand Up @@ -18,10 +18,19 @@ object Taz: Car {
override val carOutput: CarOutput
get() = throw NotImplementedError("Приборов нет")


class TazTank: Tank(initialVolume = 20) {
override fun receiveFuel(liters: Int) {
throw NotImplementedError("Bang!!")
}
}

/**
* Получить оборудование
*/
override fun getEquipment(): String = "Крыса"
override val tankMouth: TankMouth
get() = TankMouth.PetrolTankMouth.build(TazTank())

/**
* Руль вправо на [degrees] градусов
Expand Down
12 changes: 10 additions & 2 deletions src/main/kotlin/ru/otus/cars/Vaz2107.kt
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Expand Up @@ -17,9 +17,10 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
}
}

override fun build(plates: Car.Plates): Vaz2107 = Vaz2107("Зеленый").apply {
override fun build(plates: Car.Plates): Car = Vaz2107("Зеленый").apply {
this.engine = getRandomEngine()
this.plates = plates
this.tankMouth = TankMouth.LpgTankMouth.build(Tank(50))
}

/**
Expand All @@ -40,6 +41,9 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
override lateinit var engine: VazEngine
private set

override lateinit var tankMouth: TankMouth
private set

/**
* Семерка едет так
*/
Expand All @@ -59,7 +63,7 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {

// Выводим состояние машины
override fun toString(): String {
return "Vaz2107(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed)"
return "Vaz2107(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed, tankMouth=$tankMouth)"
}

/**
Expand All @@ -74,5 +78,9 @@ class Vaz2107 private constructor(color: String) : VazPlatform(color) {
override fun getCurrentSpeed(): Int {
return this@Vaz2107.currentSpeed
}

override fun getTankContents(): Int {
return this@Vaz2107.tankMouth.getContents()
}
}
}
12 changes: 10 additions & 2 deletions src/main/kotlin/ru/otus/cars/Vaz2108.kt
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Expand Up @@ -18,9 +18,10 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
}
}

override fun build(plates: Car.Plates): Vaz2108 = Vaz2108("Красный").apply {
override fun build(plates: Car.Plates): Car = Vaz2108("Красный").apply {
this.engine = getRandomEngine()
this.plates = plates
this.tankMouth = TankMouth.PetrolTankMouth.build(Tank(65))
}

fun alignWheels(vaz2108: Vaz2108) {
Expand All @@ -38,6 +39,9 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
override lateinit var engine: VazEngine
private set

override lateinit var tankMouth: TankMouth
private set

/**
* Восьмерка едет так
*/
Expand All @@ -63,7 +67,7 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {

// Выводим состояние машины
override fun toString(): String {
return "Vaz2108(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed)"
return "Vaz2108(plates=$plates, wheelAngle=$wheelAngle, currentSpeed=$currentSpeed, tankMouth=$tankMouth)"
}

/**
Expand All @@ -78,5 +82,9 @@ class Vaz2108 private constructor(color: String) : VazPlatform(color) {
override fun getCurrentSpeed(): Int {
return this@Vaz2108.currentSpeed
}

override fun getTankContents(): Int {
return this@Vaz2108.tankMouth.getContents()
}
}
}
29 changes: 26 additions & 3 deletions src/main/kotlin/ru/otus/cars/main.kt
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Expand Up @@ -16,6 +16,7 @@ fun main() {
techChecks()
println("\n===> Taz...")
println(Taz.color)
refuelCars()
}

fun driveCars() {
Expand All @@ -31,7 +32,7 @@ fun driveCars() {

fun innerNestedCheck() {
val vaz = Vaz2107.build(Car.Plates("123", 77))
val output = vaz.VazOutput() // Создаем новый объект ИЗ ЭКЗЕМПЛЯРА МАШИНЫ
val output = (vaz as Vaz2107).VazOutput() // Создаем новый объект ИЗ ЭКЗЕМПЛЯРА МАШИНЫ

println("Скорость до проверки: ${output.getCurrentSpeed()}") // Выводит 0
Vaz2107.test(vaz) // Газуем...
Expand Down Expand Up @@ -78,8 +79,8 @@ fun techChecks() {
val vaz1 = Vaz2107.build(Car.Plates("123", 77))
val vaz2 = Vaz2108.build(Car.Plates("321", 78))

repairEngine(vaz1)
repairEngine(vaz2)
repairEngine(vaz1 as VazPlatform)
repairEngine(vaz2 as VazPlatform)
}

fun repairEngine(car: VazPlatform) {
Expand All @@ -90,4 +91,26 @@ fun repairEngine(car: VazPlatform) {
is VazEngine.LADA_2107 -> println("Чистка карбюратора у двигателя объемом ${car.engine.volume} куб.см у машины $car")
is VazEngine.SAMARA_2108 -> println("Угол зажигания у двигателя объемом ${car.engine.volume} куб.см у машины $car")
}
}

fun refuelCars() {
val cars: List<Car> = listOf(
Vaz2107.build(Car.Plates("123", 77)),
Vaz2108.build(Car.Plates("321", 78)),
Taz
)

val station = FuelStation()

for (car in cars) {
println("Собираемся заправить $car, Кол-во топлива: ${car.tankMouth.getContents()}")
val refuelResult = station.refuel(car.tankMouth, 10)
println("Результат заправки $refuelResult, Кол-во топлива: ${car.tankMouth.getContents()}, Машина: $car")
}

for (car in cars) {
println("Собираемся заправить $car, Кол-во топлива: ${car.tankMouth.getContents()}")
val refuelResult = station.refuel(car.tankMouth, 15)
println("Результат заправки $refuelResult, Кол-во топлива: ${car.tankMouth.getContents()}, Машина: $car")
}
}