PAS/src/main/java/cn/cslg/pas/common/utils/DateUtils2.java

package cn.cslg.pas.common.utils;


import cn.hutool.core.date.DateUtil;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.regex.Pattern;

import static cn.cslg.pas.common.utils.DateUtils.FORMAT_STRING;

public class DateUtils2 {

    public static DateTime formStrToDateTime(String dateString) {
        try {
            DateTimeFormatter formatter;

            if (dateString.contains("-")) {
                formatter = DateTimeFormat.forPattern("yyyy-MM-dd");
            } else if (dateString.contains("//")) {
                formatter = DateTimeFormat.forPattern("yyyy/MM/dd");
            } else if (dateString.contains(":")) {
                formatter = DateTimeFormat.forPattern("yyyy:MM:dd");
            } else if (dateString.contains(".")) {
                formatter = DateTimeFormat.forPattern("yyyy.MM.dd");
            } else {
                formatter = DateTimeFormat.forPattern("yyyyMMdd");
            }

            return formatter.parseDateTime(dateString);
        } catch (Exception e) {
            throw new RuntimeException("时间转化格式错误" + "[dateString=" + dateString + "]" + "[FORMAT_STRING=" + FORMAT_STRING + "]");
        }
    }


    public static List<DateTime> formStrToDateTime(DateTime dateStart, DateTime dateEnd) {
        List<DateTime> dateTimes = new ArrayList<>();
        dateTimes.add(dateStart);
        DateTime minDate1 = new DateTime();
        DateTime minDate2= new DateTime();
        Integer startYear = dateStart.getYear();
        Integer startMonth = dateStart.getMonthOfYear();
        Integer startDay = dateStart.getDayOfYear();
        Integer endYear = dateEnd.getYear();
        Integer endMonth = dateEnd.getMonthOfYear();
        Integer endDay = dateEnd.getDayOfYear();
        if (startYear.equals(endYear) ) {
            if (startMonth.equals(endMonth)) {
                if (startDay .equals(endDay) ) {
                    minDate1=dateStart;
                } else {
                    int diffDay = endDay - startDay;
                    int minDay = diffDay / 2;
                    minDate1 = dateStart.plusDays(minDay);
                }
            } else {
                int diffMonth = endYear - startYear;
                int minMonth = diffMonth / 2;
                if(minMonth==0){
                    minMonth=1;
                }
                minDate1 = dateStart.plusMonths(minMonth).minusDays(1);
                minDate2 =dateStart.plusMonths(minMonth);
            }
        } else {
            int diffYear = endYear - startYear;
            int minYear = diffYear / 2;
            if(minYear==0){
                minYear=1;
            }
            minDate1 = dateStart.plusYears(minYear).minusDays(1);
            minDate2 =dateStart.plusYears(minYear);
            if(minDate1.isAfter(minDate2)){
                System.out.println("aa");
            }
        }
        dateTimes.add(minDate1);
        dateTimes.add(minDate2);
        dateTimes.add(dateEnd);
        return dateTimes;
    }

    public static String dateTimeToPatentStr(Date dateTime) {
        SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
        return format.format(dateTime);
    }


    public static Date formStrToDate(String dateString) {
        try {
            if(dateString==null||dateString.trim().equals("")){
                return null;
            }
            SimpleDateFormat formatter;
            if (dateString.contains("-")) {
                formatter = new SimpleDateFormat("yyyy-MM-dd");
            } else if (dateString.contains("//")) {
                formatter = new SimpleDateFormat("yyyy/MM/dd");
            } else if (dateString.contains(":")) {
                formatter = new SimpleDateFormat("yyyy:MM:dd");
            } else if (dateString.contains(".")) {
                formatter = new SimpleDateFormat("yyyy.MM.dd");
            } else {
                formatter = new SimpleDateFormat("yyyyMMdd");
            }

            return formatter.parse(dateString);
        } catch (Exception e) {
            throw new RuntimeException("时间转化格式错误" + "[dateString=" + dateString + "]" + "[FORMAT_STRING=" + FORMAT_STRING + "]");
        }
    }

    /**
     * 获取第几个星期
     *
     * @param date
     * @return
     */
    public static int getDateWeekIndex(Date date) {
        Calendar calendar = Calendar.getInstance(Locale.getDefault());
        calendar.setTime(date); // 注意月份是从0开始的，即0=1月，1=2月，...
        // 获取周数可能依赖于Calendar的设置，这里使用默认设置
        int weekOfYear = calendar.get(Calendar.WEEK_OF_YEAR);
        return weekOfYear;
    }


    /**
     * 获取第几个月
     *
     * @param date
     * @return
     */
    public static int getDateMonthIndex(Date date) {
        Calendar calendar = Calendar.getInstance(Locale.getDefault());
        calendar.setTime(date); // 注意月份是从0开始的，即0=1月，1=2月，...
        // 获取周数可能依赖于Calendar的设置，这里使用默认设置
        int month = calendar.get(Calendar.MONTH) + 1;
        return month;
    }


    /**
     * 获取第几个季度
     *
     * @param date
     * @return
     */
    public static int getDateQuarterIndex(Date date) {
        Calendar calendar = Calendar.getInstance(Locale.getDefault());
        calendar.setTime(date); // 注意月份是从0开始的，即0=1月，1=2月，...
        // 获取周数可能依赖于Calendar的设置，这里使用默认设置
        int month = calendar.get(Calendar.MONTH) + 1;
        int quarter;

        if (month >= Calendar.JANUARY && month <= Calendar.MARCH) {
            quarter = 1;
        } else if (month >= Calendar.APRIL && month <= Calendar.JUNE) {
            quarter = 2;
        } else if (month >= Calendar.JULY && month <= Calendar.SEPTEMBER) {
            quarter = 3;
        } else {
            quarter = 4;
        }
        return quarter;
    }

    public static int getDateYear(Date date) {
        Calendar calendar = Calendar.getInstance(Locale.getDefault());
        calendar.setTime(date); // 注意月份是从0开始的，即0=1月，1=2月，...
        // 获取周数可能依赖于Calendar的设置，这里使用默认设置
        int year = calendar.get(Calendar.YEAR);
        return year;
    }


    public static String getDateIndexStr(Date date, String type) {
        StringBuilder dateStr = new StringBuilder();
        int year = DateUtils2.getDateYear(date);
        dateStr.append(year+"年");
        switch (type) {
            case "week":
                int week = DateUtils2.getDateWeekIndex(date);
                dateStr.append("第" + week + "周");
                break;
            case "month":
                int month = DateUtils2.getDateMonthIndex(date);
                dateStr.append( month + "月");
                break;
            case "quarter":
                int quarter = DateUtils2.getDateQuarterIndex(date);
                dateStr.append("第" + quarter + "季度");
                break;
        }
        String reDate = dateStr.toString();
        return reDate;
    }

}