package com.kidgrow.db.sharding;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

/**
 * 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
 *
 * @Description: 按月分表后缀<br>
 * @Project: <br>
 * @CreateDate: Created in 2020/2/4 16:05 <br>
 * @Author: <a href="4345453@kidgrow.com">liuke</a>
 */
public class MonthTableSuffix implements TableSuffix {

    private Date date;

    public MonthTableSuffix(Date date) {
        if (date == null) {
            throw new IllegalArgumentException("date should not be null");
        }
        this.date = date;
    }

    @Override
    public String getSuffix() {
        return String.format("_%s", createFormatter().format(date));
    }

    private static SimpleDateFormat createFormatter() {
        return new SimpleDateFormat("yyyyMM", Locale.CHINA);
    }

}