generated from mingliqiye/lib-tem
minglipro
7526b2e787
- 从 Java 文件中删除了旧的 DateTime 类 - 新增 Kotlin 版本的 DateTime 类，具有以下改进： - 添加了时间格式化枚举类 Formatter - 新增时间位移类 DateTimeOffset - 重构了 parse 和 format 方法，支持新的 Formatter 枚举 - 优化了文件时间转换方法，使用纳秒精度 - 删除了旧的 DateTimeJsonConverter 类
81 lines
2.4 KiB
Kotlin
81 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 RandomBytes.kt
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* LastUpdate 2025-09-15 09:54:33
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* UpdateUser MingLiPro
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*/
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@file:JvmName("RandomBytes")
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package com.mingliqiye.utils.random
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/**
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* 生成指定长度的随机字节数组
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* @param length 数组长度
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* @return 包含随机字节的数组
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*/
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fun randomBytes(length: Int): ByteArray {
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val bytes = ByteArray(length)
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for (i in 0..<length) {
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bytes[i] = randomByte(0x00.toByte(), 0xff.toByte())
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}
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return bytes
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}
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/**
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* 生成指定长度的随机字节数组
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* 从给定的字节数组中随机选择字节来填充新数组
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*
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* @param length 要生成的随机字节数组的长度
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* @param bytes 用于随机选择的源字节数组
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* @return 包含随机字节的新数组
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*/
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fun randomBytes(length: Int, bytes: ByteArray): ByteArray {
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val rbytes = ByteArray(length)
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// 从源数组中随机选择字节填充到结果数组中
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for (i in 0..<length) {
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rbytes[i] = bytes[randomInt(i, bytes.size - 1)]
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}
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return rbytes
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}
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/**
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* 生成指定范围内的随机字节
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* @param from 起始字节值（包含）
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* @param to 结束字节值（包含）
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* @return 指定范围内的随机字节
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*/
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fun randomByte(from: Byte, to: Byte): Byte {
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val fromInt = from.toInt() and 0xFF
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val toInt = to.toInt() and 0xFF
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val randomValue = randomInt(fromInt, toInt)
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return (randomValue and 0xFF).toByte()
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}
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/**
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* 生成指定范围内的随机字节（不包含边界值）
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* @param from 起始字节值（不包含）
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* @param to 结束字节值（不包含）
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* @return 指定范围内的随机字节
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*/
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fun randomByteNoHave(from: Byte, to: Byte): Byte {
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val fromInt = from.toInt() and 0xFF
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val toInt = to.toInt() and 0xFF
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val randomValue = randomIntNoHave(fromInt, toInt)
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return (randomValue and 0xFF).toByte()
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}
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