kata.kt

package tenniskata

enum class ConditionStatus { Unknown, True, False }

abstract class ResourceCondition(
        val name: String,
        val status: ConditionStatus = ConditionStatus.Unknown
)

sealed class SitepodCondition(
        name: String,
        status: ConditionStatus
) : ResourceCondition(name, status) {

    class Provisioned(status: ConditionStatus = ConditionStatus.Unknown)
        : SitepodCondition("provisioned", status)

    class StableDiskReady(status: ConditionStatus = ConditionStatus.Unknown)
        : SitepodCondition("stableDisk", status)

    class Approved(status: ConditionStatus = ConditionStatus.Unknown)
        : SitepodCondition("approved", status)
}

interface IntfResource {
    val name: String
    val conditions: List<ResourceCondition>
}

abstract class Resource(
        override val name: String,
        override val conditions: List<ResourceCondition> = listOf()
) : IntfResource

data class SitepodResource(
        override val name: String,
        override val conditions: List<SitepodCondition> = listOf()
) : Resource(name, conditions)

abstract class AltResource<out TCondition : ResourceCondition>(
        override val name: String,
        override val conditions: List<TCondition> = listOf()
) : IntfResource

data class AltSitepodResource(
        override val name: String,
        override val conditions: List<SitepodCondition>
) : AltResource<SitepodCondition>(name, conditions)


fun main(args: Array<String>) {

    val sitepod1: IntfResource = SitepodResource(
            "sitepod1",
            listOf(SitepodCondition.Provisioned(ConditionStatus.False))
    )

    val altSitepod1: IntfResource = AltSitepodResource(
            "sitepod2",
            listOf(SitepodCondition.Provisioned(ConditionStatus.False))
    )

    println("${sitepod1.name} is ${sitepod1.conditions[0].status}")
    println("${altSitepod1.name} is ${altSitepod1.conditions[0].status}")

}

L30-38 Method 1
L40-48 Method 2