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https://gitee.com/dotnetchina/TimeCrontab.git
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😊 新增 CRON 的 秒分时 字段域支持 R 字符
This commit is contained in:
百小僧
30
README.md
30
README.md
@@ -198,6 +198,14 @@ var crontab = Crontab.YearlyAt("MAR", "MAY", "JUN");
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var crontab = Crontab.YearlyAt(3, "MAY", 6);
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```
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**支持 `R` 随机时刻**
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`R` 是一个特殊的 `CRON` 表达式字符，允许您指定随机生成的时刻。例如，`R 0 0 * * ? *` 表示在每天 `00:00` 的随机秒数 (`0-59`) 时刻引发触发器。
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```cs
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var crontab = Crontab.Parse("R 0 0 * * ? *", CronStringFormat.WithSecondsAndYears);
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```
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[更多文档](https://furion.baiqian.ltd/docs/cron)
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## 文档
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@@ -209,6 +217,12 @@ var crontab = Crontab.YearlyAt(3, "MAY", 6);
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```cs
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public class TimeCrontabUnitTests
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{
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private readonly ITestOutputHelper _testOutput;
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public TimeCrontabUnitTests(ITestOutputHelper testOutput)
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{
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_testOutput = testOutput;
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}
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[Theory]
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[InlineData("* * * * *", "* * * * *", CronStringFormat.Default)]
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[InlineData("0 0 31W * *", "0 0 31W * *", CronStringFormat.Default)]
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@@ -224,6 +238,7 @@ public class TimeCrontabUnitTests
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[InlineData("0 */5 * * * *", "0 */5 * * * *", CronStringFormat.WithSeconds)]
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[InlineData("0 0/1 * * * ?", "0 */1 * * * ?", CronStringFormat.WithSeconds)]
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[InlineData("5-10 30-35 10-12 * * *", "5-10 30-35 10-12 * * *", CronStringFormat.WithSeconds)]
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[InlineData("20/10 * * * * ?", "20/10 * * * * ?", CronStringFormat.WithSeconds)]
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public void TestParse(string expression, string outputString, CronStringFormat format)
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{
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var output = Crontab.Parse(expression, format).ToString();
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@@ -245,6 +260,8 @@ public class TimeCrontabUnitTests
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[InlineData("0 */5 * * * *", "2022-01-01 00:05:00", CronStringFormat.WithSeconds)]
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[InlineData("0 0/1 * * * ?", "2022-01-01 00:01:00", CronStringFormat.WithSeconds)]
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[InlineData("5-10 30-35 10-12 * * *", "2022-01-01 10:30:05", CronStringFormat.WithSeconds)]
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[InlineData("20/10 * * * * ?", "2022-01-01 00:00:20", CronStringFormat.WithSeconds)]
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[InlineData("20/30 * * * * ?", "2022-01-01 00:00:20", CronStringFormat.WithSeconds)]
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public void TestGetNextOccurence(string expression, string nextOccurenceString, CronStringFormat format)
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{
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var beginTime = new DateTime(2022, 1, 1, 0, 0, 0);
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@@ -252,6 +269,19 @@ public class TimeCrontabUnitTests
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var nextOccurence = crontab.GetNextOccurrence(beginTime);
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Assert.Equal(nextOccurenceString, nextOccurence.ToString("yyyy-MM-dd HH:mm:ss"));
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}
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[Fact]
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public void TestRandownInSecondOrMinuteOrHour()
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{
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var beginTime = new DateTime(2022, 1, 1, 0, 0, 0);
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var crontab = Crontab.Parse("R 0 0 * * ? *", CronStringFormat.WithSecondsAndYears);
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Assert.Equal("R 0 0 * * ? *", crontab.ToString());
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var nextOccurence = crontab.GetNextOccurrence(beginTime);
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Assert.True(nextOccurence.Second >= 0 && nextOccurence.Second <= 59);
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_testOutput.WriteLine(nextOccurence.Second.ToString());
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Assert.Throws<TimeCrontabException>(() => Crontab.Parse("* 0 0 R * ? *", CronStringFormat.WithSecondsAndYears));
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}
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}
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```
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@@ -1 +1,241 @@
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Binary file not shown.
|
Before Width: | Height: | Size: 90 KiB After Width: | Height: | Size: 115 KiB |
@@ -158,6 +158,12 @@ public sealed partial class Crontab
|
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}
|
||||
}
|
||||
|
||||
// 判断值是否等于 R
|
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if (newParser == "R")
|
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{
|
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return new RandomParser(kind);
|
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}
|
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|
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// 判断值是否等于 ?
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if (newParser == "?")
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{
|
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|
||||
99
src/TimeCrontab/Parsers/RandomParser.cs
Normal file
99
src/TimeCrontab/Parsers/RandomParser.cs
Normal file
@@ -0,0 +1,99 @@
|
||||
// 版权归百小僧及百签科技（广东）有限公司所有。
|
||||
//
|
||||
// 此源代码遵循位于源代码树根目录中的 LICENSE 文件的许可证。
|
||||
|
||||
using System;
|
||||
|
||||
namespace TimeCrontab;
|
||||
|
||||
/// <summary>
|
||||
/// Cron 字段值含 R 字符解析器
|
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/// </summary>
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/// <remarks>
|
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/// <para>R 表示随机生成的时刻，仅在 <see cref="CrontabFieldKind.Second"/>、<see cref="CrontabFieldKind.Minute"/> 或 <see cref="CrontabFieldKind.Hour"/> 字段域中使用。</para>
|
||||
/// <para>参考文献：https://help.eset.com/protect_admin/10.0/zh-CN/cron_expression.html。</para>
|
||||
/// </remarks>
|
||||
internal sealed class RandomParser : ICronParser, ITimeParser
|
||||
{
|
||||
/// <summary>
|
||||
/// 构造函数
|
||||
/// </summary>
|
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/// <param name="kind">Cron 字段种类</param>
|
||||
/// <exception cref="TimeCrontabException"></exception>
|
||||
public RandomParser(CrontabFieldKind kind)
|
||||
{
|
||||
// 验证 R 字符是否在 Second、Minute 或 Hour 字段域中使用
|
||||
if (kind != CrontabFieldKind.Second &&
|
||||
kind != CrontabFieldKind.Minute &&
|
||||
kind != CrontabFieldKind.Hour)
|
||||
{
|
||||
throw new TimeCrontabException("The <R> parser can only be used with the Second, Minute, or Hour fields.");
|
||||
}
|
||||
|
||||
Kind = kind;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Cron 字段种类
|
||||
/// </summary>
|
||||
public CrontabFieldKind Kind { get; }
|
||||
|
||||
/// <summary>
|
||||
/// 判断当前时间是否符合 Cron 字段种类解析规则
|
||||
/// </summary>
|
||||
/// <param name="datetime">当前时间</param>
|
||||
/// <returns><see cref="bool"/></returns>
|
||||
public bool IsMatch(DateTime datetime)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取 Cron 字段种类当前值的下一个发生值
|
||||
/// </summary>
|
||||
/// <param name="currentValue">时间值</param>
|
||||
/// <returns><see cref="int"/></returns>
|
||||
/// <exception cref="TimeCrontabException"></exception>
|
||||
public int? Next(int currentValue)
|
||||
{
|
||||
return GenerateRandomValue();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取 Cron 字段种类字段起始值
|
||||
/// </summary>
|
||||
/// <returns><see cref="int"/></returns>
|
||||
/// <exception cref="TimeCrontabException"></exception>
|
||||
public int First()
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 将解析器转换成字符串输出
|
||||
/// </summary>
|
||||
/// <returns><see cref="string"/></returns>
|
||||
public override string ToString()
|
||||
{
|
||||
return "R";
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 随机对象
|
||||
/// </summary>
|
||||
private static readonly Random random = new();
|
||||
|
||||
/// <summary>
|
||||
/// 生成指定范围的随机值
|
||||
/// </summary>
|
||||
/// <returns><see cref="int"/></returns>
|
||||
private int GenerateRandomValue()
|
||||
{
|
||||
// 获取 Cron 字段种类最小值和最大值
|
||||
var minimum = Constants.MinimumDateTimeValues[Kind];
|
||||
var maximum = Constants.MaximumDateTimeValues[Kind];
|
||||
|
||||
// 生成最小值和最大值之间的随机数
|
||||
return random.Next(minimum, maximum + 1);
|
||||
}
|
||||
}
|
||||
@@ -6,9 +6,9 @@
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
|
||||
<PackageReference Include="xunit" Version="2.7.0" />
|
||||
<PackageReference Include="xunit.runner.visualstudio" Version="2.5.7">
|
||||
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
|
||||
<PackageReference Include="xunit" Version="2.9.2" />
|
||||
<PackageReference Include="xunit.runner.visualstudio" Version="3.0.0">
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
</PackageReference>
|
||||
|
||||
@@ -1,10 +1,18 @@
|
||||
using System;
|
||||
using Xunit;
|
||||
using Xunit.Abstractions;
|
||||
using Xunit.Sdk;
|
||||
|
||||
namespace TimeCrontab.UnitTests;
|
||||
|
||||
public class TimeCrontabUnitTests
|
||||
{
|
||||
private readonly ITestOutputHelper _testOutput;
|
||||
public TimeCrontabUnitTests(ITestOutputHelper testOutput)
|
||||
{
|
||||
_testOutput = testOutput;
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData("* * * * *", "* * * * *", CronStringFormat.Default)]
|
||||
[InlineData("0 0 31W * *", "0 0 31W * *", CronStringFormat.Default)]
|
||||
@@ -51,4 +59,17 @@ public class TimeCrontabUnitTests
|
||||
var nextOccurence = crontab.GetNextOccurrence(beginTime);
|
||||
Assert.Equal(nextOccurenceString, nextOccurence.ToString("yyyy-MM-dd HH:mm:ss"));
|
||||
}
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void TestRandownInSecondOrMinuteOrHour()
|
||||
{
|
||||
var beginTime = new DateTime(2022, 1, 1, 0, 0, 0);
|
||||
var crontab = Crontab.Parse("R 0 0 * * ? *", CronStringFormat.WithSecondsAndYears);
|
||||
Assert.Equal("R 0 0 * * ? *", crontab.ToString());
|
||||
var nextOccurence = crontab.GetNextOccurrence(beginTime);
|
||||
Assert.True(nextOccurence.Second >= 0 && nextOccurence.Second <= 59);
|
||||
_testOutput.WriteLine(nextOccurence.Second.ToString());
|
||||
|
||||
Assert.Throws<TimeCrontabException>(() => Crontab.Parse("* 0 0 R * ? *", CronStringFormat.WithSecondsAndYears));
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user