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本算法为等级与时间结合计算对应优先级逻辑 等级越高者优先级越高 同等级下#xff0c;时间越小者优先级越高 实现
主方法
calculatePriority
import com.zk.blog.enums.TypeEnum;
import org.apache.commons.lang3.StringUtils;/*** program: * description:* autho…简介
本算法为等级与时间结合计算对应优先级逻辑 等级越高者优先级越高 同等级下时间越小者优先级越高 实现
主方法
calculatePriority
import com.zk.blog.enums.TypeEnum;
import org.apache.commons.lang3.StringUtils;/*** program: * description:* author: zk* create: 2024-08-09 17:26**/
public class PriorityService {/*** 基线时间* 2024-01-01 00:00:00* 秒值*/private static final Long baseTime 1704067200L;/*** 前缀*/private static final String prefix 1;/*** 按照阶梯类型时间计算优先级* 类型级别越高、时间越前者优先级越高** param type 类型 类型优先级最大2位* param time 计算时间* return 优先级结果 越大优先级越高*/public String calculatePriority(TypeEnum type, Long time) {//毫秒转秒if (String.valueOf(time).length() 13) {time time / 1000;}if (String.valueOf(time).length() ! 10) {throw new RuntimeException(时间格式错误);}String typePriority String.valueOf(type.getLevelPriority());String timePriority String.valueOf(Integer.MAX_VALUE - (time - baseTime));typePriority StringUtils.leftPad(typePriority, 2, 0);timePriority StringUtils.leftPad(timePriority, 12, 0);return new StringBuilder().append(prefix).append(typePriority).append(timePriority).toString();}
}采用Integer.MAX_VALUE - (time - 基线时间)计算出时间优先级 等级优先级为2位不够则左侧补0 时间优先级为12位不够则左侧补0 最终优先级:1位前缀2位级别优先级12位时间优先级 13位字符串 等级类型枚举
TypeEnum /*** program: * description: 类型级别* author: zk* create: 2024-08-09 17:30**/
public enum TypeEnum {/*** 级别描述, 等级优先级*/ONE(一级, 1),TWO(二级, 2),THREE(三级, 3),FOUR(四级, 4),FIVE(五级, 5),SIX(六级, 6),SEVEN(七级, 7),EIGHT(八级, 8),NINE(九级, 9),TEN(十级, 10);private String name;private Integer levelPriority;TypeEnum(String name, Integer levelPriority) {this.name name;this.levelPriority levelPriority;}public String getName() {return name;}public void setName(String name) {this.name name;}public Integer getLevelPriority() {return levelPriority;}public void setLevelPriority(Integer levelPriority) {this.levelPriority levelPriority;}
}
测试
测试代码 Testpublic void test(){//一级 2024-02-01 00:00:00System.out.println(calculatePriority(TypeEnum.ONE, 1706745600L));//一级 2024-03-01 00:00:00System.out.println(calculatePriority(TypeEnum.ONE, 1709251200L));//九级 2024-02-01 00:00:00System.out.println(calculatePriority(TypeEnum.NINE, 1706745600L));//九级 2024-03-01 00:00:00System.out.println(calculatePriority(TypeEnum.NINE, 1709251200L));//十级 2024-02-01 00:00:00System.out.println(calculatePriority(TypeEnum.TEN, 1706745600L));//十级 2024-03-01 00:00:00System.out.println(calculatePriority(TypeEnum.TEN, 1709251200L));}测试结果
101002144805247
101002142299647
109002144805247
109002142299647
110002144805247
110002142299647结束
