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• mirai-administrator
• 1.4.4
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• ComparableService.kt

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xyz.cssxsh.mirai.spi.ComparableService.kt Maven / Gradle / Ivy

package xyz.cssxsh.mirai.spi

import java.util.*
import kotlin.collections.*

/**
 * Admin 插件对接服务接口
 */
public sealed interface ComparableService : Comparable {

    /**
     * 优先等级, 越高越优先
     */
    public val level: Int

    /**
     * 用来查找服务
     */
    public val id: String

    /**
     * 简介
     */
    public val description: String get() = ""

    public override fun compareTo(other: ComparableService): Int {
        return other.level.compareTo(level).takeUnless { it == 0 } ?: id.compareTo(other.id)
    }

    /**
     * 加载器
     */
    public companion object Loader {

        internal val instances: MutableSet = TreeSet()

        /**
         * 获取所有已注册实例
         */
        public inline operator fun  invoke(): List = registered(S::class.java)

        /**
         * 获取指定ID实例
         */
        public inline operator fun  get(id: String): S = get(S::class.java, id)

        /**
         * 获取指定Class实例
         */
        public fun  registered(clazz: Class): List {
            return instances.filterIsInstance(clazz)
        }

        /**
         * 获取指定Class和ID实例
         */
        public fun  get(clazz: Class, id: String): S {
            return registered(clazz).find { it.id == id }
                ?: throw NoSuchElementException("${clazz.simpleName} No Such $id")
        }
    }
}