com.tencent.devops.common.api.util.ClassUtil.kt Maven / Gradle / Ivy

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/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2019 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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 */

package com.tencent.devops.common.api.util

import java.io.File
import java.net.URL
import java.net.URLClassLoader

object ClassUtil {
    fun getClass(jarFile: File, className: String): Class<*> {
        val url = jarFile.toURI().toURL()
        val urlClassLoader = ClassLoader.getSystemClassLoader() as URLClassLoader
        val urlClassLoaderClazz = URLClassLoader::class.java
        val method = urlClassLoaderClazz.getDeclaredMethod("addURL", URL::class.java)
        method.isAccessible = true
        method.invoke(urlClassLoader, url)

        return urlClassLoader.loadClass(className)
    }

    fun isInheritedFrom(subClass: Class<*>, parentClass: Class<*>): Boolean {
        return parentClass.isAssignableFrom(subClass)
    }
}