52 lines
1.3 KiB
Java
52 lines
1.3 KiB
Java
import CronParser from 'cron-parser'
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import { replaceWeekName } from './tabs/const'
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export default (rule, value, callback) => {
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// 没填写就不校验
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if (!value) {
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callback()
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return true
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}
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const values = value.split(' ').filter(item => !!item)
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if (values.length > 7) {
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callback(new Error('Cron表达式最多7项！'))
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return false
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}
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// 检查第7项
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let e = value
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if (values.length === 7) {
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const year = replaceWeekName(values[6])
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if (year !== '*' && year !== '?') {
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let yearValues = []
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if (year.indexOf('-') >= 0) {
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yearValues = year.split('-')
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} else if (year.indexOf('/')) {
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yearValues = year.split('/')
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} else {
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yearValues = [year]
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}
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// console.info(yearValues)
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// 判断是否都是数字
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const checkYear = yearValues.some(item => isNaN(item))
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if (checkYear) {
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callback(new Error('Cron表达式参数[年]错误：' + year))
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return false
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}
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}
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// 取其中的前六项
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e = values.slice(0, 6).join(' ')
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}
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// 6位 没有年
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// 5位没有秒、年
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let result = true
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try {
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const iter = CronParser.parseExpression(e)
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iter.next()
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callback()
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} catch (e) {
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callback(new Error('Cron表达式错误：' + e))
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result = false
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}
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return result
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}
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