generated from mingliqiye/lib-tem
minglipro
dc129c016f
- 重写 Collection 类，使用 Kotlin 语法和特性优化代码结构 - 添加新方法以支持数组和集合之间的转换 - 新增 CopyOnWriteArrayList、Stack 和 TreeSet 相关方法 -优化现有方法，提高代码可读性和性能 - 删除未使用的 ForEach 导入 -调整 build.gradle.kts 中的依赖项
99 lines
2.4 KiB
Kotlin
99 lines
2.4 KiB
Kotlin
/*
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* Copyright 2025 mingliqiye
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* ProjectName mingli-utils
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* ModuleName mingli-utils.main
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* CurrentFile ThreadLocalDataHolder.kt
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* LastUpdate 2025-09-15 09:15:14
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* UpdateUser MingLiPro
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*/
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package com.mingliqiye.utils.data
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/**
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* 泛型线程局部变量持有器
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*
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* 封装了 ThreadLocal 的常用操作，提供更便捷的 API 来管理线程本地变量。
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*
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* @param T 存储的数据类型
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* @author MingLiPro
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*/
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class ThreadLocalDataHolder<T> {
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private val threadLocal: ThreadLocal<T?> = ThreadLocal()
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/**
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* 获取当前线程存储的值
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*
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* @return 当前线程存储的值，如果没有则返回null
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*/
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fun get(): T? {
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return threadLocal.get()
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}
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/**
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* 设置当前线程的值
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*
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* @param value 要存储的值
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*/
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fun set(value: T) {
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threadLocal.set(value)
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}
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/**
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* 移除当前线程存储的值
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*
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* 防止内存泄漏，使用完毕后应调用此方法清理资源。
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*/
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fun remove() {
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threadLocal.remove()
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}
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/**
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* 获取当前线程存储的值，如果不存在则返回默认值
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*
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* @param defaultValue 默认值
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* @return 当前线程存储的值或默认值
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*/
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fun getOrDefault(defaultValue: T): T {
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val value = threadLocal.get()
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return value ?: defaultValue
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}
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/**
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* 安全获取值（避免NPE）
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*
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* 在某些异常情况下防止抛出异常，直接返回 null。
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*
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* @return 值或null
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*/
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fun safeGet(): T? {
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return try {
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threadLocal.get()
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} catch (e: Exception) {
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null
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}
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}
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/**
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* 检查当前线程是否有值
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*
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* @return 是否有值
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*/
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fun isPresent(): Boolean {
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return threadLocal.get() != null
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}
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}
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