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Hutool 定时任务

There is a newer version: 6.0.0.M3

/*
 * Copyright (c) 2023 looly([email protected])
 * Hutool is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          https://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */

package org.dromara.hutool.cron.pattern.matcher;

import org.dromara.hutool.core.collection.CollUtil;
import org.dromara.hutool.core.lang.Assert;
import org.dromara.hutool.core.text.StrUtil;

import java.util.Collections;
import java.util.List;

/**
 * 将表达式中的数字值列表转换为Boolean数组，匹配时匹配相应数组位
 *
 * @author Looly
 */
public class BoolArrayMatcher implements PartMatcher {

	/**
	 * 用户定义此字段的最小值
	 */
	protected final int minValue;
	protected final boolean[] bValues;

	/**
	 * 构造
	 *
	 * @param intValueList 匹配值列表
	 */
	public BoolArrayMatcher(final List intValueList) {
		Assert.isTrue(CollUtil.isNotEmpty(intValueList), "Values must be not empty!");
		bValues = new boolean[Collections.max(intValueList) + 1];
		int min = Integer.MAX_VALUE;
		for (final Integer value : intValueList) {
			min = Math.min(min, value);
			bValues[value] = true;
		}
		this.minValue = min;
	}

	@Override
	public boolean test(final Integer value) {
		final boolean[] bValues = this.bValues;
		if (null == value || value >= bValues.length) {
			return false;
		}
		return bValues[value];
	}

	@Override
	public int nextAfter(int value) {
		final int minValue = this.minValue;
		if(value > minValue){
			final boolean[] bValues = this.bValues;
			while(value < bValues.length){
				if(bValues[value]){
					return value;
				}
				value++;
			}
		}

		// 两种情况返回最小值
		// 一是给定值小于最小值，那下一个匹配值就是最小值
		// 二是给定值大于最大值，那下一个匹配值也是下一轮的最小值
		return minValue;
	}

	/**
	 * 获取表达式定义的最小值
	 *
	 * @return 最小值
	 */
	public int getMinValue() {
		return this.minValue;
	}

	@Override
	public String toString() {
		return StrUtil.format("Matcher:{}", new Object[]{this.bValues});
	}
}