package cn.gistack.sm.patrol.util;
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import com.baomidou.mybatisplus.core.config.GlobalConfig;
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import com.baomidou.mybatisplus.core.incrementer.DefaultIdentifierGenerator;
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import com.baomidou.mybatisplus.core.incrementer.IdentifierGenerator;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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/**
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* id 获取器
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*
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*/
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public class IdWorker {
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/**
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* 主机和进程的机器码
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*/
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private static IdentifierGenerator IDENTIFIER_GENERATOR = new DefaultIdentifierGenerator();
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/**
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* 毫秒格式化时间
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*/
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public static final DateTimeFormatter MILLISECOND = DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS");
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/**
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* 获取唯一ID
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*
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* @return id
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*/
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public static long getId() {
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return getId(new Object());
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}
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/**
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* 获取唯一ID
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*
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* @return id
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*/
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public static long getId(Object entity) {
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return IDENTIFIER_GENERATOR.nextId(entity).longValue();
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}
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/**
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* 获取唯一ID
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*
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* @return id
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*/
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public static String getIdStr() {
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return getIdStr(new Object());
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}
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/**
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* 获取唯一ID
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*
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* @return id
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*/
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public static String getIdStr(Object entity) {
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return IDENTIFIER_GENERATOR.nextId(entity).toString();
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}
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/**
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* 格式化的毫秒时间
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*/
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public static String getMillisecond() {
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return LocalDateTime.now().format(MILLISECOND);
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}
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/**
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* 时间 ID = Time + ID
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* <p>例如：可用于商品订单 ID</p>
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*/
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public static String getTimeId() {
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return getMillisecond() + getIdStr();
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}
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/**
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* 有参构造器
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*
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* @param workerId 工作机器 ID
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* @param dataCenterId 序列号
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* @see #setIdentifierGenerator(IdentifierGenerator)
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*/
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public static void initSequence(long workerId, long dataCenterId) {
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IDENTIFIER_GENERATOR = new DefaultIdentifierGenerator(workerId, dataCenterId);
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}
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/**
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* 自定义id 生成方式
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*
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* @param identifierGenerator id 生成器
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* @see GlobalConfig#setIdentifierGenerator(IdentifierGenerator)
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*/
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public static void setIdentifierGenerator(IdentifierGenerator identifierGenerator) {
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IDENTIFIER_GENERATOR = identifierGenerator;
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}
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}
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