/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.accu.common.util.time;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
/**
* 格式化日期到字符串工具，线程安全
* <p>
* Date and time formatting utilities and constants.
* </p>
*
* <p>
* Formatting is performed using the
* {@link org.apache.commons.lang.time.FastDateFormat} class.
* </p>
*
* @author Apache Software Foundation
* @author Apache Ant - DateUtils
* @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
* @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
* @since 2.0
* @version $Id: DateFormatUtils.java 905636 2010-02-02 14:03:32Z niallp $
*/
public class DateFormatUtils {
/**
* ISO8601 formatter for date-time without time zone. The format used is
* <tt>yyyy-MM-dd'T'HH:mm:ss</tt>.
*/
public static final FastDateFormat ISO_DATETIME_FORMAT = FastDateFormat
.getInstance("yyyy-MM-dd'T'HH:mm:ss");
/**
* ISO8601 formatter for date-time with time zone. The format used is
* <tt>yyyy-MM-dd'T'HH:mm:ssZZ</tt>.
*/
public static final FastDateFormat ISO_DATETIME_TIME_ZONE_FORMAT = FastDateFormat
.getInstance("yyyy-MM-dd'T'HH:mm:ssZZ");
/**
* ISO8601 formatter for date without time zone. The format used is
* <tt>yyyy-MM-dd</tt>.
*/
public static final FastDateFormat ISO_DATE_FORMAT = FastDateFormat
.getInstance("yyyy-MM-dd");
/**
* ISO8601-like formatter for date with time zone. The format used is
* <tt>yyyy-MM-ddZZ</tt>. This pattern does not comply with the formal
* ISO8601 specification as the standard does not allow a time zone without
* a time.
*/
public static final FastDateFormat ISO_DATE_TIME_ZONE_FORMAT = FastDateFormat
.getInstance("yyyy-MM-ddZZ");
/**
* ISO8601 formatter for time without time zone. The format used is
* <tt>'T'HH:mm:ss</tt>.
*/
public static final FastDateFormat ISO_TIME_FORMAT = FastDateFormat
.getInstance("'T'HH:mm:ss");
/**
* ISO8601 formatter for time with time zone. The format used is
* <tt>'T'HH:mm:ssZZ</tt>.
*/
public static final FastDateFormat ISO_TIME_TIME_ZONE_FORMAT = FastDateFormat
.getInstance("'T'HH:mm:ssZZ");
/**
* ISO8601-like formatter for time without time zone. The format used is
* <tt>HH:mm:ss</tt>. This pattern does not comply with the formal
* ISO8601 specification as the standard requires the 'T' prefix for times.
*/
public static final FastDateFormat ISO_TIME_NO_T_FORMAT = FastDateFormat
.getInstance("HH:mm:ss");
/**
* ISO8601-like formatter for time with time zone. The format used is
* <tt>HH:mm:ssZZ</tt>. This pattern does not comply with the formal
* ISO8601 specification as the standard requires the 'T' prefix for times.
*/
public static final FastDateFormat ISO_TIME_NO_T_TIME_ZONE_FORMAT = FastDateFormat
.getInstance("HH:mm:ssZZ");
/**
* SMTP (and probably other) date headers. The format used is
* <tt>EEE, dd MMM yyyy HH:mm:ss Z</tt> in US locale.
*/
public static final FastDateFormat SMTP_DATETIME_FORMAT = FastDateFormat
.getInstance("EEE, dd MMM yyyy HH:mm:ss Z", Locale.US);
// -----------------------------------------------------------------------
/**
* <p>
* DateFormatUtils instances should NOT be constructed in standard
* programming.
* </p>
*
* <p>
* This constructor is public to permit tools that require a JavaBean
* instance to operate.
* </p>
*/
public DateFormatUtils() {
super();
}
/**
* <p>
* Formats a date/time into a specific pattern using the UTC time zone.
* </p>
*
* @param millis
* the date to format expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @return the formatted date
*/
public static String formatUTC(long millis, String pattern) {
return format(new Date(millis), pattern, DateUtils.UTC_TIME_ZONE, null);
}
/**
* <p>
* Formats a date/time into a specific pattern using the UTC time zone.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @return the formatted date
*/
public static String formatUTC(Date date, String pattern) {
return format(date, pattern, DateUtils.UTC_TIME_ZONE, null);
}
/**
* <p>
* Formats a date/time into a specific pattern using the UTC time zone.
* </p>
*
* @param millis
* the date to format expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String formatUTC(long millis, String pattern, Locale locale) {
return format(new Date(millis), pattern, DateUtils.UTC_TIME_ZONE,
locale);
}
/**
* <p>
* Formats a date/time into a specific pattern using the UTC time zone.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String formatUTC(Date date, String pattern, Locale locale) {
return format(date, pattern, DateUtils.UTC_TIME_ZONE, locale);
}
/**
* <p>
* Formats a date/time into a specific pattern.
* </p>
*
* @param millis
* the date to format expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @return the formatted date
*/
public static String format(long millis, String pattern) {
return format(new Date(millis), pattern, null, null);
}
/**
* <p>
* Formats a date/time into a specific pattern.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @return the formatted date
*/
public static String format(Date date, String pattern) {
return format(date, pattern, null, null);
}
/**
* <p>
* Formats a calendar into a specific pattern.
* </p>
*
* @param calendar
* the calendar to format
* @param pattern
* the pattern to use to format the calendar
* @return the formatted calendar
* @see FastDateFormat#format(Calendar)
* @since 2.4
*/
public static String format(Calendar calendar, String pattern) {
return format(calendar, pattern, null, null);
}
/**
* <p>
* Formats a date/time into a specific pattern in a time zone.
* </p>
*
* @param millis
* the time expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @param timeZone
* the time zone to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(long millis, String pattern, TimeZone timeZone) {
return format(new Date(millis), pattern, timeZone, null);
}
/**
* <p>
* Formats a date/time into a specific pattern in a time zone.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @param timeZone
* the time zone to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(Date date, String pattern, TimeZone timeZone) {
return format(date, pattern, timeZone, null);
}
/**
* <p>
* Formats a calendar into a specific pattern in a time zone.
* </p>
*
* @param calendar
* the calendar to format
* @param pattern
* the pattern to use to format the calendar
* @param timeZone
* the time zone to use, may be <code>null</code>
* @return the formatted calendar
* @see FastDateFormat#format(Calendar)
* @since 2.4
*/
public static String format(Calendar calendar, String pattern,
TimeZone timeZone) {
return format(calendar, pattern, timeZone, null);
}
/**
* <p>
* Formats a date/time into a specific pattern in a locale.
* </p>
*
* @param millis
* the date to format expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(long millis, String pattern, Locale locale) {
return format(new Date(millis), pattern, null, locale);
}
/**
* <p>
* Formats a date/time into a specific pattern in a locale.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(Date date, String pattern, Locale locale) {
return format(date, pattern, null, locale);
}
/**
* <p>
* Formats a calendar into a specific pattern in a locale.
* </p>
*
* @param calendar
* the calendar to format
* @param pattern
* the pattern to use to format the calendar
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted calendar
* @see FastDateFormat#format(Calendar)
* @since 2.4
*/
public static String format(Calendar calendar, String pattern, Locale locale) {
return format(calendar, pattern, null, locale);
}
/**
* <p>
* Formats a date/time into a specific pattern in a time zone and locale.
* </p>
*
* @param millis
* the date to format expressed in milliseconds
* @param pattern
* the pattern to use to format the date
* @param timeZone
* the time zone to use, may be <code>null</code>
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(long millis, String pattern, TimeZone timeZone,
Locale locale) {
return format(new Date(millis), pattern, timeZone, locale);
}
/**
* <p>
* Formats a date/time into a specific pattern in a time zone and locale.
* </p>
*
* @param date
* the date to format
* @param pattern
* the pattern to use to format the date
* @param timeZone
* the time zone to use, may be <code>null</code>
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted date
*/
public static String format(Date date, String pattern, TimeZone timeZone,
Locale locale) {
FastDateFormat df = FastDateFormat.getInstance(pattern, timeZone,
locale);
return df.format(date);
}
/**
* <p>
* Formats a calendar into a specific pattern in a time zone and locale.
* </p>
*
* @param calendar
* the calendar to format
* @param pattern
* the pattern to use to format the calendar
* @param timeZone
* the time zone to use, may be <code>null</code>
* @param locale
* the locale to use, may be <code>null</code>
* @return the formatted calendar
* @see FastDateFormat#format(Calendar)
* @since 2.4
*/
public static String format(Calendar calendar, String pattern,
TimeZone timeZone, Locale locale) {
FastDateFormat df = FastDateFormat.getInstance(pattern, timeZone,
locale);
return df.format(calendar);
}
}
/*----------------------------------------------------------------------------*/
package com.accu.common.util.time;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class DateIntervalTools {
/**
* 字串 转 日期
* @param dateString
* @param format
* @return
* @throws ParseException
*/
public static Date parserStringToDate(String dateString,String format) throws ParseException {
DateFormat dateFormat=new SimpleDateFormat(format);
return dateFormat.parse(dateString);
}
/**
* 日期 转 字串
* @param date
* @param format
* @return
* @throws ParseException
*/
public static String parserDateToString(Date date,String format) throws ParseException {
DateFormat dateFormat=new SimpleDateFormat(format);
return dateFormat.format(date);
}
/**
* 取得前年当前日期
* @param specifyDate
* @param specifyDateFormat
* @param returnDateFormat
* @return String
* @throws ParseException
*/
public static String getYearBeforeDate(String specifyDate,String specifyDateFormat,String returnDateFormat) throws ParseException{
Calendar c =Calendar.getInstance();
Date date=new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int year=c.get(Calendar.YEAR);
c.set(Calendar.YEAR, year-1);
String dayLater=new SimpleDateFormat(returnDateFormat).format(c.getTime());
return dayLater;
}
/**
* 取得当前日期所在的周
* @param specifyDate
* @param specifyDateFormat
* @return
* @throws ParseException
*/
public static String getWeekOfDate(String specifyDate,String specifyDateFormat) throws ParseException{
Calendar c =new GregorianCalendar();
Date date=new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int weeks=c.getActualMaximum(Calendar.WEEK_OF_YEAR);
int year=c.get(Calendar.YEAR);
int week=c.get(Calendar.WEEK_OF_YEAR);
int month=Integer.parseInt(specifyDate.substring(5, 7).toString());
if(month==12 && week<10){
week=weeks;
}
return year+"-"+week;
}
/**
* 取得当前日期所在的周
* @param specifyDate
* @param specifyDateFormat
* @return
* @throws ParseException
*/
public static String getWeekOfDate() throws ParseException{
Calendar c =new GregorianCalendar();
Date date=new Date();
//new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int weeks=c.getActualMaximum(Calendar.WEEK_OF_YEAR);
int year=c.get(Calendar.YEAR);
int week=c.get(Calendar.WEEK_OF_YEAR);
int month=c.get(Calendar.MONTH)+1;
if(month==12 && week<10){
week=weeks;
}
return year+"-"+week;
}
/**
* 取得当前日期所在的周的上一周
* @param specifyDate
* @param specifyDateFormat
* @return
* @throws ParseException
*/
public static String getBeforeWeekOfDate() throws ParseException{
Calendar c =new GregorianCalendar();
Date date=new Date();
//new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int weeks=c.getActualMaximum(Calendar.WEEK_OF_YEAR);
int year=c.get(Calendar.YEAR);
int week=c.get(Calendar.WEEK_OF_YEAR)-1;
int month=c.get(Calendar.MONTH)+1;
if(month==12 && week<10){
week=weeks;
}
return year+"年"+week+"周";
}
/**
* 取得指定日期所在周的上一周
* @param specifyDate
* @param specifyDateFormat
* @return
* @throws ParseException
*/
public static String getBeforeWeekOfDates(Date d) throws ParseException{
Calendar c =new GregorianCalendar();
//new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
if(d==null)d=new Date();
c.setTime(d);
int weeks=c.getActualMaximum(Calendar.WEEK_OF_YEAR);
int year=c.get(Calendar.YEAR);
int week=c.get(Calendar.WEEK_OF_YEAR)-1;
int month=c.get(Calendar.MONTH)+1;
if(month==12 && week<10){
week=weeks;
}
return year+"年"+week+"周";
}
/**
* 获得当前日期与本周一相差的天数
* @return
*/
private static int getMondayPlus() {
Calendar cd = Calendar.getInstance();
// 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK);
if (dayOfWeek == 1) {
return -6;
} else {
return 2 - dayOfWeek;
}
}
/**
* 获得指定日期与本周一相差的天数
* @return
*/
private static int getMondayPluss(Date e) {
Calendar cd = Calendar.getInstance();
cd.setTime(e);
// 获得今天是一周的第几天，星期日是第一天，星期二是第二天......
int dayOfWeek = cd.get(Calendar.DAY_OF_WEEK);
if (dayOfWeek == 1) {
return -6;
} else {
return 2 - dayOfWeek;
}
}
/**
* 获得当前周- 周一的日期
* @return
*/
public static String getCurrentMonday(){
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
/**
* 获得指定日期所在周- 周一的日期
* @return
*/
public static String getMonday(Date d){
int mondayPlus = getMondayPluss(d);
Calendar calendar=Calendar.getInstance();
calendar.setTime(d);
calendar.add(GregorianCalendar.DATE, mondayPlus);
Date monday = calendar.getTime();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
String preMonday = df.format(monday);
return preMonday;
}
/**
* 获得当前周- 周日 的日期
* @return
*/
public static String getPreviousSunday() {
int mondayPlus = getMondayPlus();
GregorianCalendar currentDate = new GregorianCalendar();
currentDate.add(GregorianCalendar.DATE, mondayPlus +6);
Date monday = currentDate.getTime();
DateFormat df = DateFormat.getDateInstance();
String preMonday = df.format(monday);
return preMonday;
}
/**
* 获得指定日期所在周- 周日 的日期
* @return
*/
public static String getSunday(Date d) {
int mondayPlus = getMondayPluss(d);
Calendar calendar=Calendar.getInstance();
calendar.setTime(d);
calendar.add(GregorianCalendar.DATE, mondayPlus +6);
Date monday = calendar.getTime();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
String preMonday = df.format(monday);
return preMonday;
}
/**
* 取得当前日期所在的季度
* @param specifyDate
* @param specifyDateFormat
* @return
* @throws ParseException
*/
public static String getQuarterOfDate(String specifyDate,String specifyDateFormat) throws ParseException{
Calendar c =Calendar.getInstance();
Date date=new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int year=c.get(Calendar.YEAR);
int month=c.get(Calendar.MONTH)+1;
int quarter;
if(month%3==0){
quarter=month/3;
}else{
quarter=month/3+1;
}
return year+"-"+quarter;
}
//--------------------------------------------------------------------------------------------
/**
* 取得日期时间段中的所有时间年
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getYearBetween(String minDateStr,String maxDateStr ){
List<String> result=new ArrayList<String>();
int startTime=Integer.valueOf(minDateStr).intValue();
int endTime=Integer.valueOf(maxDateStr).intValue();
for(int a=startTime;a<endTime+1;a++){
result.add(String.valueOf(a));
}
return result;
}
/**
* 取得日期段中的所有时间月
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getMonthBetween(String minDateStr,String maxDateStr,String paramDateFormat,String returnDateFormat){
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat paramFormat = new SimpleDateFormat(paramDateFormat);
SimpleDateFormat returnFormat = new SimpleDateFormat(returnDateFormat);
Date minDate = paramFormat.parse(minDateStr);
Date maxDate=paramFormat.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
max.setTime(maxDate);
max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
Calendar curr = min;
while (curr.before(max)) {
result.add(returnFormat.format(curr.getTime()));
curr.add(Calendar.MONTH, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有时间月? 需求调周设定接口
* @param minDateStr
* @param maxDateStr
* @return
* @throws ParseException
*/
public static List<String> getWeekBetweenDate(String minDateStr,String maxDateStr,String paramDateFormat) throws ParseException{
ArrayList<String> result = new ArrayList<String>();
SimpleDateFormat paramFormat = new SimpleDateFormat(paramDateFormat);
Date minDate = paramFormat.parse(minDateStr);
Date maxDate=paramFormat.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
int count=1;
Calendar curr = min;
Calendar curr1 = max;
while(curr.before(max)){
curr.add(Calendar.DAY_OF_YEAR, 1);
if(curr.get(Calendar.DAY_OF_WEEK)==Calendar.SATURDAY){
count++;
result.add(curr.get(Calendar.YEAR)+"/"+curr.get(Calendar.WEEK_OF_YEAR));
}
}
if (!result.get(result.size()-1).equals(curr1.get(Calendar.YEAR)+"/"+curr1.get(Calendar.WEEK_OF_YEAR))) {
result.add(curr1.get(Calendar.YEAR)+"/"+curr1.get(Calendar.WEEK_OF_YEAR));
}
return result;
}
public static List<String> getWeekBetweenDate1(String minDateStr,String maxDateStr,String paramDateFormat){
SimpleDateFormat paramFormat = new SimpleDateFormat(paramDateFormat);
List<String> dateGap=new ArrayList<String>();
try {
Date minDate = paramFormat.parse(minDateStr);
Date maxDate=paramFormat.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
Calendar curr = min;
Calendar curr1 = max;
int minTime = curr.get(Calendar.DAY_OF_YEAR);
int maxTime = curr1.get(Calendar.DAY_OF_YEAR);
if ((maxTime-minTime)>6) {
try {
dateGap=DateIntervalTools.getWeekBetweenDate( minDateStr, maxDateStr, paramDateFormat);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else{
if (curr.get(Calendar.WEEK_OF_YEAR)==curr1.get(Calendar.WEEK_OF_YEAR)) {
String week=curr.get(Calendar.YEAR)+"/"+curr.get(Calendar.WEEK_OF_YEAR);
dateGap.add(week);
}else{
String week5=curr.get(Calendar.YEAR)+"/"+curr.get(Calendar.WEEK_OF_YEAR);
String week1=curr1.get(Calendar.YEAR)+"/"+curr1.get(Calendar.WEEK_OF_YEAR);
dateGap.add(week5);
dateGap.add(week1);
}
}
} catch (ParseException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
return dateGap;
}
/**
* 取得日期段中的所有时间月
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getMonthBetween(String minDateStr, String maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM");
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
max.setTime(maxDate);
max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdf.format(curr.getTime()));
curr.add(Calendar.MONTH, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有时间天
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getDayBetween(String minDateStr, String maxDateStr,String paramDateFormat,String returnDateFormat) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat sdfResult = new SimpleDateFormat(returnDateFormat);
SimpleDateFormat sdf = new SimpleDateFormat(paramDateFormat);
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.DAY_OF_MONTH, 1);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdfResult.format(curr.getTime()));
curr.add(Calendar.DAY_OF_MONTH, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有时间天
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getHourBetweenDate(String minDateStr, String maxDateStr,String paramDateFormat,String returnDateFormat) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat sdfResult = new SimpleDateFormat(returnDateFormat);
SimpleDateFormat sdf = new SimpleDateFormat(paramDateFormat);
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.DAY_OF_MONTH, 1);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdfResult.format(curr.getTime()));
curr.add(Calendar.HOUR_OF_DAY, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有时间天
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getDayBetween(String minDateStr, String maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
try {
if(minDateStr.indexOf("-") == -1){
minDateStr = minDateStr.replaceAll("/", "-");
}
if(maxDateStr.indexOf("-") == -1){
maxDateStr = maxDateStr.replaceAll("/", "-");
}
SimpleDateFormat sdfResult = new SimpleDateFormat("yyyy/MM/dd");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.DAY_OF_MONTH, 1);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdfResult.format(curr.getTime()));
curr.add(Calendar.DAY_OF_MONTH, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有时间天
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getDayBetween(Date minDateStr, Date maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
if(minDateStr == null){
return null;
}
if(maxDateStr == null){
return null;
}
if(minDateStr.compareTo(maxDateStr) >= 0){
return null;
}
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDateStr);
max.setTime(maxDateStr);
max.add(Calendar.DAY_OF_MONTH, 1);
Calendar curr = min;
while (curr.before(max)) {
result.add(sdf.format(curr.getTime()));
curr.add(Calendar.DAY_OF_MONTH, 1);
}
return result;
}
/**
* 取得日期段中的所有时间周
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getWeekBetween(String minDateStr,String maxDateStr,String paramDateFormat){
ArrayList<String> result = new ArrayList<String>();
String[] startDate=minDateStr.split("/");
String[] endDate=maxDateStr.split("/");
int startYear=0;
int endYear=0;
int startWeek=0;
int endWeek=0;
if(paramDateFormat.equals("yyyy/ww")){
startYear=Integer.valueOf(startDate[0]).intValue();
endYear=Integer.valueOf(endDate[0]).intValue();
startWeek=Integer.valueOf(startDate[1]).intValue();
endWeek=Integer.valueOf(endDate[1]).intValue();
}else if(paramDateFormat.equals("ww/yyyy")){
startYear=Integer.valueOf(startDate[1]).intValue();
endYear=Integer.valueOf(endDate[1]).intValue();
startWeek=Integer.valueOf(startDate[0]).intValue();
endWeek=Integer.valueOf(endDate[0]).intValue();
}
//同年
if(startYear==endYear){
for(int i=startWeek;i<endWeek+1;i++){
String date=startYear+"/"+i;
result.add(date);
}
}else if(startYear==endYear-1){//连续年
for(int i=startWeek;i<54;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int j=1;j<endWeek+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}else{//不连续年
for(int i=startWeek;i<54;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int k=startYear+1;k<endYear;k++){
for(int s=1;s<54;s++){
String date=k+"/"+s;
result.add(date);
}
}
for(int j=1;j<endWeek+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}
return result;
}
/**
* 取得日期段中的所有时间周
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getWeekBetween(String minDateStr,String maxDateStr){
ArrayList<String> result = new ArrayList<String>();
String[] startDate=minDateStr.split("/");
String[] endDate=maxDateStr.split("/");
int startYear=Integer.valueOf(startDate[0]).intValue();
int endYear=Integer.valueOf(endDate[0]).intValue();
int startWeek=Integer.valueOf(startDate[1]).intValue();
int endWeek=Integer.valueOf(endDate[1]).intValue();
//同年
if(startYear==endYear){
for(int i=startWeek;i<endWeek+1;i++){
String date=startYear+"/"+i;
result.add(date);
}
}else if(startYear==endYear-1){//连续年
for(int i=startWeek;i<54;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int j=1;j<endWeek+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}else{//不连续年
for(int i=startWeek;i<54;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int k=startYear+1;k<endYear;k++){
for(int s=1;s<54;s++){
String date=k+"/"+s;
result.add(date);
}
}
for(int j=1;j<endWeek+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}
return result;
}
/**
* 取得时间段中的所有季度数
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getQuarterBetwEeen(String minDateStr,String maxDateStr,String paramDateFormat){
ArrayList<String> result =new ArrayList<String>();
String[] startDate=minDateStr.split("/");
String[] endDate=maxDateStr.split("/");
int startYear=0;
int endYear=0;
int startQuarter=0;
int endQuarter=0;
if(paramDateFormat.equals("yyyy/qq")){
startYear=Integer.valueOf(startDate[0]).intValue();
endYear=Integer.valueOf(endDate[0]).intValue();
startQuarter=Integer.valueOf(startDate[1]).intValue();
endQuarter=Integer.valueOf(endDate[1]).intValue();
}else if(paramDateFormat.equals("qq/yyyy")){
startYear=Integer.valueOf(startDate[1]).intValue();
endYear=Integer.valueOf(endDate[1]).intValue();
startQuarter=Integer.valueOf(startDate[0]).intValue();
endQuarter=Integer.valueOf(endDate[0]).intValue();
}
//同年
if(startYear==endYear){
for(int i=startQuarter;i<endQuarter+1;i++){
String date=startYear+"/"+i;
result.add(date);
}
}else if(startYear==endYear-1){//连续年
for(int i=startQuarter;i<5;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int j=1;j<endQuarter+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}else{//不连续年
for(int i=startQuarter;i<5;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int k=startYear+1;k<endYear;k++){
for(int s=1;s<5;s++){
String date=k+"/"+s;
result.add(date);
}
}
for(int j=1;j<endQuarter+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}
return result;
}
/**
* 取得时间段中的所有季度数
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getQuarterBetwEeen(String minDateStr,String maxDateStr){
ArrayList<String> result =new ArrayList<String>();
String[] startDate=minDateStr.split("/");
String[] endDate=maxDateStr.split("/");
int startYear=Integer.valueOf(startDate[0]).intValue();
int endYear=Integer.valueOf(endDate[0]).intValue();
int startQuarter=Integer.valueOf(startDate[1]).intValue();
int endQuarter=Integer.valueOf(endDate[1]).intValue();
//同年
if(startYear==endYear){
for(int i=startQuarter;i<endQuarter+1;i++){
String date=startYear+"/"+i;
result.add(date);
}
}else if(startYear==endYear-1){//连续年
for(int i=startQuarter;i<5;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int j=1;j<endQuarter+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}else{//不连续年
for(int i=startQuarter;i<5;i++){
String date=startYear+"/"+i;
result.add(date);
}
for(int k=startYear+1;k<endYear;k++){
for(int s=1;s<5;s++){
String date=k+"/"+s;
result.add(date);
}
}
for(int j=1;j<endQuarter+1;j++){
String date=endYear+"/"+j;
result.add(date);
}
}
return result;
}
/**
* 取得日期段中的所有时间小时2011/03/01 01
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getHourBetween(String minDateStr, String maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat resultSdf = new SimpleDateFormat("yyyy/MM/dd HH");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH");
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.HOUR_OF_DAY, 1);
Calendar curr = min;
while (curr.before(max)) {
result.add(resultSdf.format(curr.getTime()));
curr.add(Calendar.HOUR_OF_DAY, 1);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有分钟2011/03/01 01
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getMinuteBetween(String minDateStr, String maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat resultSdf = new SimpleDateFormat("yyyy/MM/dd HH:mm");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.MINUTE, 5);
Calendar curr = min;
while (curr.before(max)) {
result.add(resultSdf.format(curr.getTime()));
curr.add(Calendar.MINUTE, 5);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期段中的所有分钟2011/03/01 01
* @param minDateStr
* @param maxDateStr
* @return
*/
public static List<String> getMinuteBetweenYearOnYear(String minDateStr, String maxDateStr) {
ArrayList<String> result = new ArrayList<String>();
try {
SimpleDateFormat resultSdf = new SimpleDateFormat("/MM/dd HH:mm");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
Date minDate = sdf.parse(minDateStr);
Date maxDate=sdf.parse(maxDateStr);
Calendar min = Calendar.getInstance();
Calendar max = Calendar.getInstance();
min.setTime(minDate);
max.setTime(maxDate);
max.add(Calendar.MINUTE, 5);
Calendar curr = min;
while (curr.before(max)) {
result.add(resultSdf.format(curr.getTime()));
curr.add(Calendar.MINUTE, 5);
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
/**
* 取得日期的前一月
* yyyy-MM
* @return String 返回类型
* @throws
*/
public static String getMonthBefore(String specifyDate){
Calendar c =Calendar.getInstance();
Date date=null;
String dayBefore="";
try {
date =new SimpleDateFormat("yyyy-MM").parse(specifyDate);
c.setTime(date);
int month=c.get(Calendar.MONTH);
c.set(Calendar.MONTH, month-1);
dayBefore=new SimpleDateFormat("yyyy/MM").format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayBefore;
}
/**
* 取得日期的前一天
* yyyy-MM-dd
* @return String 返回类型
* @throws
*/
public static String getDayBefore(String specifyDate){
Calendar c =Calendar.getInstance();
Date date=null;
String dayBefore="";
try {
date =new SimpleDateFormat("yyyy-MM-dd").parse(specifyDate);
c.setTime(date);
int day=c.get(Calendar.DATE);
c.set(Calendar.DATE, day-1);
dayBefore=new SimpleDateFormat("yyyy/MM/dd").format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayBefore;
}
public static String getDayAfter(String specifyDate){
Calendar c =Calendar.getInstance();
Date date=null;
String dayBefore="";
try {
date =new SimpleDateFormat("yyyy-MM-dd").parse(specifyDate);
c.setTime(date);
int day=c.get(Calendar.DATE);
c.set(Calendar.DATE, day+1);
dayBefore=new SimpleDateFormat("yyyy/MM/dd").format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayBefore;
}
public static String getYearAfter(String specifyDate){
Calendar c =Calendar.getInstance();
Date date=null;
String dayBefore="";
try {
date =new SimpleDateFormat("yyyy-MM-dd").parse(specifyDate);
c.setTime(date);
int year=c.get(Calendar.YEAR);
c.set(Calendar.YEAR, year+1);
dayBefore=new SimpleDateFormat("yyyy/MM/dd").format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayBefore;
}
/**
* 取得日期的后一天
* @param specifyDate
* @param specifyDateFormat
* @param returnDateFormat
* @return String
*/
public static String getDayLater(String specifyDate,String specifyDateFormat,String returnDateFormat){
Calendar c =Calendar.getInstance();
Date date=null;
String dayLater="";
try {
date =new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int day=c.get(Calendar.DATE);
c.set(Calendar.DATE, day+1);
dayLater=new SimpleDateFormat(returnDateFormat).format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayLater;
}
/**
* 取得日期的前一天
* @param specifyDate
* @param specifyDateFormat
* @param returnDateFormat
* @return String
*/
public static String getDayBefore(String specifyDate,String specifyDateFormat,String returnDateFormat){
Calendar c =Calendar.getInstance();
Date date=null;
String dayLater="";
try {
date =new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int day=c.get(Calendar.DATE);
c.set(Calendar.DATE, day-1);
dayLater=new SimpleDateFormat(returnDateFormat).format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayLater;
}
/**
* 取得日期的前一年
* @param specifyDate
* @param specifyDateFormat
* @param returnDateFormat
* @return String
*/
public static String getYearBefore(String specifyDate,String specifyDateFormat,String returnDateFormat){
Calendar c =Calendar.getInstance();
Date date=null;
String dayLater="";
try {
date =new SimpleDateFormat(specifyDateFormat).parse(specifyDate);
c.setTime(date);
int year=c.get(Calendar.YEAR);
c.set(Calendar.YEAR, year-1);
dayLater=new SimpleDateFormat(returnDateFormat).format(c.getTime());
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return dayLater;
}
/**
* 取得日期的前一周
* 2012/1
* @return String 返回类型
* @throws
*/
public static String getWeekBefore(String yearAndWeek){
String[] date=yearAndWeek.split("-");
int year=Integer.valueOf(date[0]).intValue();
int week=Integer.valueOf(date[1]).intValue();
Calendar c =Calendar.getInstance();
c.set(Calendar.YEAR, year);
c.set(Calendar.WEEK_OF_YEAR, week);
int cweek=c.get(Calendar.WEEK_OF_YEAR);
c.set(Calendar.WEEK_OF_YEAR, cweek-1);
String weekBefore=c.get(Calendar.YEAR)+"/"+c.get(Calendar.WEEK_OF_YEAR);
return weekBefore;
}
/**
* 取得日期的前一季度
* 2012/1
* @return String 返回类型
* @throws
*/
public static String getQuarterBefore(String yearAndQuarter){
String[] date=yearAndQuarter.split("-");
int year=Integer.valueOf(date[0]).intValue();
int quarter=Integer.valueOf(date[1]).intValue();
if(quarter==1){
year=year-1;
quarter=4;
}else{
quarter=quarter-1;
}
String quarterBefore=year+"/"+quarter;
return quarterBefore;
}
/**
* 获得某年某月的天数
* @return int 返回类型
*/
public static int getDayOfYearMonth(String ym){
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM");
Date date;
int dayOfMonth=0;
try {
date = format.parse(ym);
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
dayOfMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
} catch (ParseException e) {
e.printStackTrace();
}
return dayOfMonth;
}
/**
* 获得日期所在年的周数
* @return int 返回类型
* @throws ParseException
*/
public static int getWeekNumberOfDate(String specifyDate,String specifyDateFormat) throws ParseException{
SimpleDateFormat format = new SimpleDateFormat(specifyDateFormat);
Date date;
int weekNumber=0;
date = format.parse(specifyDate);
Calendar calendar = new GregorianCalendar();
calendar.setTime(date);
weekNumber = calendar.getActualMaximum(Calendar.WEEK_OF_YEAR);
return weekNumber;
}
}
/*------------------------------------------------------------------------------*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.accu.common.util.time;
import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Iterator;
import java.util.NoSuchElementException;
import java.util.TimeZone;
import com.accu.common.util.StringUtils;
public class DateUtils {
/**
* The UTC time zone (often referred to as GMT).
*/
public static final TimeZone UTC_TIME_ZONE = TimeZone.getTimeZone("GMT");
/**
* Number of milliseconds in a standard second.
* @since 2.1
*/
public static final long MILLIS_PER_SECOND = 1000;
/**
* Number of milliseconds in a standard minute.
* @since 2.1
*/
public static final long MILLIS_PER_MINUTE = 60 * MILLIS_PER_SECOND;
/**
* Number of milliseconds in a standard hour.
* @since 2.1
*/
public static final long MILLIS_PER_HOUR = 60 * MILLIS_PER_MINUTE;
/**
* Number of milliseconds in a standard day.
* @since 2.1
*/
public static final long MILLIS_PER_DAY = 24 * MILLIS_PER_HOUR;
/**
* This is half a month, so this represents whether a date is in the top
* or bottom half of the month.
*/
public final static int SEMI_MONTH = 1001;
private static final int[][] fields = {
{Calendar.MILLISECOND},
{Calendar.SECOND},
{Calendar.MINUTE},
{Calendar.HOUR_OF_DAY, Calendar.HOUR},
{Calendar.DATE, Calendar.DAY_OF_MONTH, Calendar.AM_PM
/* Calendar.DAY_OF_YEAR, Calendar.DAY_OF_WEEK, Calendar.DAY_OF_WEEK_IN_MONTH */
},
{Calendar.MONTH, DateUtils.SEMI_MONTH},
{Calendar.YEAR},
{Calendar.ERA}};
/**
* A week range, starting on Sunday.
*/
public final static int RANGE_WEEK_SUNDAY = 1;
/**
* A week range, starting on Monday.
*/
public final static int RANGE_WEEK_MONDAY = 2;
/**
* A week range, starting on the day focused.
*/
public final static int RANGE_WEEK_RELATIVE = 3;
/**
* A week range, centered around the day focused.
*/
public final static int RANGE_WEEK_CENTER = 4;
/**
* A month range, the week starting on Sunday.
*/
public final static int RANGE_MONTH_SUNDAY = 5;
/**
* A month range, the week starting on Monday.
*/
public final static int RANGE_MONTH_MONDAY = 6;
/**
* Constant marker for truncating
*/
private final static int MODIFY_TRUNCATE = 0;
/**
* Constant marker for rounding
*/
private final static int MODIFY_ROUND = 1;
/**
* Constant marker for ceiling
*/
private final static int MODIFY_CEILING= 2;
public DateUtils() {
super();
}
public static boolean isSameDay(Date date1, Date date2) {
if (date1 == null || date2 == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar cal1 = Calendar.getInstance();
cal1.setTime(date1);
Calendar cal2 = Calendar.getInstance();
cal2.setTime(date2);
return isSameDay(cal1, cal2);
}
public static boolean isSameDay(Calendar cal1, Calendar cal2) {
if (cal1 == null || cal2 == null) {
throw new IllegalArgumentException("The date must not be null");
}
return (cal1.get(Calendar.ERA) == cal2.get(Calendar.ERA) &&
cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) &&
cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR));
}
public static boolean isSameInstant(Date date1, Date date2) {
if (date1 == null || date2 == null) {
throw new IllegalArgumentException("The date must not be null");
}
return date1.getTime() == date2.getTime();
}
public static boolean isSameInstant(Calendar cal1, Calendar cal2) {
if (cal1 == null || cal2 == null) {
throw new IllegalArgumentException("The date must not be null");
}
return cal1.getTime().getTime() == cal2.getTime().getTime();
}
public static boolean isSameLocalTime(Calendar cal1, Calendar cal2) {
if (cal1 == null || cal2 == null) {
throw new IllegalArgumentException("The date must not be null");
}
return (cal1.get(Calendar.MILLISECOND) == cal2.get(Calendar.MILLISECOND) &&
cal1.get(Calendar.SECOND) == cal2.get(Calendar.SECOND) &&
cal1.get(Calendar.MINUTE) == cal2.get(Calendar.MINUTE) &&
cal1.get(Calendar.HOUR) == cal2.get(Calendar.HOUR) &&
cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR) &&
cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) &&
cal1.get(Calendar.ERA) == cal2.get(Calendar.ERA) &&
cal1.getClass() == cal2.getClass());
}
public static Date parseDate(String str, String[] parsePatterns) throws ParseException {
return parseDateWithLeniency(str, parsePatterns, true);
}
public static Date parseDateStrictly(String str, String[] parsePatterns) throws ParseException {
return parseDateWithLeniency(str, parsePatterns, false);
}
private static Date parseDateWithLeniency(String str, String[] parsePatterns,
boolean lenient) throws ParseException {
if (str == null || parsePatterns == null) {
throw new IllegalArgumentException("Date and Patterns must not be null");
}
SimpleDateFormat parser = new SimpleDateFormat();
parser.setLenient(lenient);
ParsePosition pos = new ParsePosition(0);
for (int i = 0; i < parsePatterns.length; i++) {
String pattern = parsePatterns[i];
// LANG-530 - need to make sure 'ZZ' output doesn't get passed to SimpleDateFormat
if (parsePatterns[i].endsWith("ZZ")) {
pattern = pattern.substring(0, pattern.length() - 1);
}
parser.applyPattern(pattern);
pos.setIndex(0);
String str2 = str;
// LANG-530 - need to make sure 'ZZ' output doesn't hit SimpleDateFormat as it will ParseException
if (parsePatterns[i].endsWith("ZZ")) {
int signIdx = indexOfSignChars(str2, 0);
while (signIdx >=0) {
str2 = reformatTimezone(str2, signIdx);
signIdx = indexOfSignChars(str2, ++signIdx);
}
}
Date date = parser.parse(str2, pos);
if (date != null && pos.getIndex() == str2.length()) {
return date;
}
}
throw new ParseException("Unable to parse the date: " + str, -1);
}
/**
* Index of sign charaters (i.e. '+' or '-').
*
* @param str The string to search
* @param startPos The start position
* @return the index of the first sign character or -1 if not found
*/
private static int indexOfSignChars(String str, int startPos) {
int idx = StringUtils.indexOf(str, '+', startPos);
if (idx < 0) {
idx = StringUtils.indexOf(str, '-', startPos);
}
return idx;
}
/**
* Reformat the timezone in a date string.
*
* @param str The input string
* @param signIdx The index position of the sign characters
* @return The reformatted string
*/
private static String reformatTimezone(String str, int signIdx) {
String str2 = str;
if (signIdx >= 0 &&
signIdx + 5 < str.length() &&
Character.isDigit(str.charAt(signIdx + 1)) &&
Character.isDigit(str.charAt(signIdx + 2)) &&
str.charAt(signIdx + 3) == ':' &&
Character.isDigit(str.charAt(signIdx + 4)) &&
Character.isDigit(str.charAt(signIdx + 5))) {
str2 = str.substring(0, signIdx + 3) + str.substring(signIdx + 4);
}
return str2;
}
//-----------------------------------------------------------------------
/**
* Adds a number of years to a date returning a new object.
* The original date object is unchanged.
*
* @param date the date, not null
* @param amount the amount to add, may be negative
* @return the new date object with the amount added
* @throws IllegalArgumentException if the date is null
*/
public static Date addYears(Date date, int amount) {
return add(date, Calendar.YEAR, amount);
}
public static Date addMonths(Date date, int amount) {
return add(date, Calendar.MONTH, amount);
}
public static Date addWeeks(Date date, int amount) {
return add(date, Calendar.WEEK_OF_YEAR, amount);
}
public static Date addDays(Date date, int amount) {
return add(date, Calendar.DAY_OF_MONTH, amount);
}
public static Date addHours(Date date, int amount) {
return add(date, Calendar.HOUR_OF_DAY, amount);
}
public static Date addMinutes(Date date, int amount) {
return add(date, Calendar.MINUTE, amount);
}
public static Date addSeconds(Date date, int amount) {
return add(date, Calendar.SECOND, amount);
}
public static Date addMilliseconds(Date date, int amount) {
return add(date, Calendar.MILLISECOND, amount);
}
@Deprecated
public static Date add(Date date, int calendarField, int amount) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(calendarField, amount);
return c.getTime();
}
public static Date setYears(Date date, int amount) {
return set(date, Calendar.YEAR, amount);
}
public static Date setMonths(Date date, int amount) {
return set(date, Calendar.MONTH, amount);
}
public static Date setDays(Date date, int amount) {
return set(date, Calendar.DAY_OF_MONTH, amount);
}
public static Date setHours(Date date, int amount) {
return set(date, Calendar.HOUR_OF_DAY, amount);
}
public static Date setMinutes(Date date, int amount) {
return set(date, Calendar.MINUTE, amount);
}
public static Date setSeconds(Date date, int amount) {
return set(date, Calendar.SECOND, amount);
}
public static Date setMilliseconds(Date date, int amount) {
return set(date, Calendar.MILLISECOND, amount);
}
private static Date set(Date date, int calendarField, int amount) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
// getInstance() returns a new object, so this method is thread safe.
Calendar c = Calendar.getInstance();
c.setLenient(false);
c.setTime(date);
c.set(calendarField, amount);
return c.getTime();
}
public static Date round(Date date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar gval = Calendar.getInstance();
gval.setTime(date);
modify(gval, field, MODIFY_ROUND);
return gval.getTime();
}
public static Calendar round(Calendar date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar rounded = (Calendar) date.clone();
modify(rounded, field, MODIFY_ROUND);
return rounded;
}
public static Date round(Object date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
if (date instanceof Date) {
return round((Date) date, field);
} else if (date instanceof Calendar) {
return round((Calendar) date, field).getTime();
} else {
throw new ClassCastException("Could not round " + date);
}
}
/* @author ray
* @date 2014-05-24 ############################################################################
* @comment add code
*/
/**
* 返回两个日期之前的差值
* @see 返回值支持毫秒到天，根据field参数来判断，标准以Calendar类为准
* @param sDate
* @param eDate
* @param field [Calendar.SECOND, Calendar.MINUTE, Calendar.HOUR, Calendar.DATE]
* @return
*/
public static int getGapFromTwoDate(Date sDate, Date eDate, int field){
long gap = (eDate.getTime() - sDate.getTime());
if(Calendar.SECOND == field){
gap = gap/1000;
}else if(Calendar.MINUTE == field){
gap = gap/(60*1000);
}else if(Calendar.HOUR == field){
gap = gap/(60*60*1000);
}else if(Calendar.DATE == field){
gap = gap/(24*60*60*1000);
}
return (int) gap;
}
/**
* 推算一个日期加上或减去多长时间后的日期
* @param date
* @param field
* @param amount
* @return
*/
public static Date update(Date date, int field, int amount){
long time = date.getTime();
if(Calendar.SECOND == field){
time += amount*1000L;
}else if(Calendar.MINUTE == field){
time += amount*60000L;
}else if(Calendar.HOUR == field){
time += amount*3600000L;
}else if(Calendar.DATE == field){
time += (long)amount*(long)(24*60*60*1000);
}
return new Date(time);
}
public static String format(Date date, String pattern){
if(date == null){
throw new NullPointerException("日期参数为空!");
}
if("yyyy-QQ".equals(pattern)){
SimpleDateFormat df = new SimpleDateFormat();
df.applyPattern("yyyy-MM");
String strDate = df.format(date);
String year = strDate.split("-")[0];
int month = Integer.parseInt(strDate.split("-")[1]);
if(month % 3 == 0){
return year + "-" + (month / 3);
}else{
return year + "-" + (month / 3 + 1);
}
}else{
SimpleDateFormat df = new SimpleDateFormat();
df.applyPattern(pattern);
return df.format(date);
}
}
//-----------------------------------------------------------------------
public static Date truncate(Date date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar gval = Calendar.getInstance();
gval.setTime(date);
modify(gval, field, MODIFY_TRUNCATE);
return gval.getTime();
}
public static Calendar truncate(Calendar date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar truncated = (Calendar) date.clone();
modify(truncated, field, MODIFY_TRUNCATE);
return truncated;
}
public static Date truncate(Object date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
if (date instanceof Date) {
return truncate((Date) date, field);
} else if (date instanceof Calendar) {
return truncate((Calendar) date, field).getTime();
} else {
throw new ClassCastException("Could not truncate " + date);
}
}
public static Date ceiling(Date date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar gval = Calendar.getInstance();
gval.setTime(date);
modify(gval, field, MODIFY_CEILING);
return gval.getTime();
}
public static Calendar ceiling(Calendar date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar ceiled = (Calendar) date.clone();
modify(ceiled, field, MODIFY_CEILING);
return ceiled;
}
public static Date ceiling(Object date, int field) {
if (date == null) {
throw new IllegalArgumentException("The date must not be null");
}
if (date instanceof Date) {
return ceiling((Date) date, field);
} else if (date instanceof Calendar) {
return ceiling((Calendar) date, field).getTime();
} else {
throw new ClassCastException("Could not find ceiling of for type: " + date.getClass());
}
}
private static void modify(Calendar val, int field, int modType) {
if (val.get(Calendar.YEAR) > 280000000) {
throw new ArithmeticException("Calendar value too large for accurate calculations");
}
if (field == Calendar.MILLISECOND) {
return;
}
Date date = val.getTime();
long time = date.getTime();
boolean done = false;
// truncate milliseconds
int millisecs = val.get(Calendar.MILLISECOND);
if (MODIFY_TRUNCATE == modType || millisecs < 500) {
time = time - millisecs;
}
if (field == Calendar.SECOND) {
done = true;
}
// truncate seconds
int seconds = val.get(Calendar.SECOND);
if (!done && (MODIFY_TRUNCATE == modType || seconds < 30)) {
time = time - (seconds * 1000L);
}
if (field == Calendar.MINUTE) {
done = true;
}
// truncate minutes
int minutes = val.get(Calendar.MINUTE);
if (!done && (MODIFY_TRUNCATE == modType || minutes < 30)) {
time = time - (minutes * 60000L);
}
// reset time
if (date.getTime() != time) {
date.setTime(time);
val.setTime(date);
}
// ----------------- Fix for LANG-59 ----------------------- END ----------------
boolean roundUp = false;
for (int i = 0; i < fields.length; i++) {
for (int j = 0; j < fields[i].length; j++) {
if (fields[i][j] == field) {
//This is our field... we stop looping
if (modType == MODIFY_CEILING || (modType == MODIFY_ROUND && roundUp)) {
if (field == DateUtils.SEMI_MONTH) {
//This is a special case that's hard to generalize
//If the date is 1, we round up to 16, otherwise
// we subtract 15 days and add 1 month
if (val.get(Calendar.DATE) == 1) {
val.add(Calendar.DATE, 15);
} else {
val.add(Calendar.DATE, -15);
val.add(Calendar.MONTH, 1);
}
// ----------------- Fix for LANG-440 ---------------------- START ---------------
} else if (field == Calendar.AM_PM) {
// This is a special case
// If the time is 0, we round up to 12, otherwise
// we subtract 12 hours and add 1 day
if (val.get(Calendar.HOUR_OF_DAY) == 0) {
val.add(Calendar.HOUR_OF_DAY, 12);
} else {
val.add(Calendar.HOUR_OF_DAY, -12);
val.add(Calendar.DATE, 1);
}
// ----------------- Fix for LANG-440 ---------------------- END ---------------
} else {
//We need at add one to this field since the
// last number causes us to round up
val.add(fields[i][0], 1);
}
}
return;
}
}
//We have various fields that are not easy roundings
int offset = 0;
boolean offsetSet = false;
//These are special types of fields that require different rounding rules
switch (field) {
case DateUtils.SEMI_MONTH:
if (fields[i][0] == Calendar.DATE) {
offset = val.get(Calendar.DATE) - 1;
if (offset >= 15) {
offset -= 15;
}
roundUp = offset > 7;
offsetSet = true;
}
break;
case Calendar.AM_PM:
if (fields[i][0] == Calendar.HOUR_OF_DAY) {
offset = val.get(Calendar.HOUR_OF_DAY);
if (offset >= 12) {
offset -= 12;
}
roundUp = offset >= 6;
offsetSet = true;
}
break;
}
if (!offsetSet) {
int min = val.getActualMinimum(fields[i][0]);
int max = val.getActualMaximum(fields[i][0]);
offset = val.get(fields[i][0]) - min;
roundUp = offset > ((max - min) / 2);
}
if (offset != 0) {
val.set(fields[i][0], val.get(fields[i][0]) - offset);
}
}
throw new IllegalArgumentException("The field " + field + " is not supported");
}
@SuppressWarnings("rawtypes")
public static Iterator iterator(Date focus, int rangeStyle) {
if (focus == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar gval = Calendar.getInstance();
gval.setTime(focus);
return iterator(gval, rangeStyle);
}
@SuppressWarnings("rawtypes")
public static Iterator iterator(Calendar focus, int rangeStyle) {
if (focus == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar start = null;
Calendar end = null;
int startCutoff = Calendar.SUNDAY;
int endCutoff = Calendar.SATURDAY;
switch (rangeStyle) {
case RANGE_MONTH_SUNDAY:
case RANGE_MONTH_MONDAY:
//Set start to the first of the month
start = truncate(focus, Calendar.MONTH);
//Set end to the last of the month
end = (Calendar) start.clone();
end.add(Calendar.MONTH, 1);
end.add(Calendar.DATE, -1);
//Loop start back to the previous sunday or monday
if (rangeStyle == RANGE_MONTH_MONDAY) {
startCutoff = Calendar.MONDAY;
endCutoff = Calendar.SUNDAY;
}
break;
case RANGE_WEEK_SUNDAY:
case RANGE_WEEK_MONDAY:
case RANGE_WEEK_RELATIVE:
case RANGE_WEEK_CENTER:
//Set start and end to the current date
start = truncate(focus, Calendar.DATE);
end = truncate(focus, Calendar.DATE);
switch (rangeStyle) {
case RANGE_WEEK_SUNDAY:
//already set by default
break;
case RANGE_WEEK_MONDAY:
startCutoff = Calendar.MONDAY;
endCutoff = Calendar.SUNDAY;
break;
case RANGE_WEEK_RELATIVE:
startCutoff = focus.get(Calendar.DAY_OF_WEEK);
endCutoff = startCutoff - 1;
break;
case RANGE_WEEK_CENTER:
startCutoff = focus.get(Calendar.DAY_OF_WEEK) - 3;
endCutoff = focus.get(Calendar.DAY_OF_WEEK) + 3;
break;
}
break;
default:
throw new IllegalArgumentException("The range style " + rangeStyle + " is not valid.");
}
if (startCutoff < Calendar.SUNDAY) {
startCutoff += 7;
}
if (startCutoff > Calendar.SATURDAY) {
startCutoff -= 7;
}
if (endCutoff < Calendar.SUNDAY) {
endCutoff += 7;
}
if (endCutoff > Calendar.SATURDAY) {
endCutoff -= 7;
}
while (start.get(Calendar.DAY_OF_WEEK) != startCutoff) {
start.add(Calendar.DATE, -1);
}
while (end.get(Calendar.DAY_OF_WEEK) != endCutoff) {
end.add(Calendar.DATE, 1);
}
return new DateIterator(start, end);
}
@SuppressWarnings("rawtypes")
public static Iterator iterator(Object focus, int rangeStyle) {
if (focus == null) {
throw new IllegalArgumentException("The date must not be null");
}
if (focus instanceof Date) {
return iterator((Date) focus, rangeStyle);
} else if (focus instanceof Calendar) {
return iterator((Calendar) focus, rangeStyle);
} else {
throw new ClassCastException("Could not iterate based on " + focus);
}
}
public static long getFragmentInMilliseconds(Date date, int fragment) {
return getFragment(date, fragment, Calendar.MILLISECOND);
}
public static long getFragmentInSeconds(Date date, int fragment) {
return getFragment(date, fragment, Calendar.SECOND);
}
public static long getFragmentInMinutes(Date date, int fragment) {
return getFragment(date, fragment, Calendar.MINUTE);
}
public static long getFragmentInHours(Date date, int fragment) {
return getFragment(date, fragment, Calendar.HOUR_OF_DAY);
}
public static long getFragmentInDays(Date date, int fragment) {
return getFragment(date, fragment, Calendar.DAY_OF_YEAR);
}
public static long getFragmentInMilliseconds(Calendar calendar, int fragment) {
return getFragment(calendar, fragment, Calendar.MILLISECOND);
}
public static long getFragmentInSeconds(Calendar calendar, int fragment) {
return getFragment(calendar, fragment, Calendar.SECOND);
}
public static long getFragmentInMinutes(Calendar calendar, int fragment) {
return getFragment(calendar, fragment, Calendar.MINUTE);
}
public static long getFragmentInHours(Calendar calendar, int fragment) {
return getFragment(calendar, fragment, Calendar.HOUR_OF_DAY);
}
public static long getFragmentInDays(Calendar calendar, int fragment) {
return getFragment(calendar, fragment, Calendar.DAY_OF_YEAR);
}
private static long getFragment(Date date, int fragment, int unit) {
if(date == null) {
throw new IllegalArgumentException("The date must not be null");
}
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
return getFragment(calendar, fragment, unit);
}
private static long getFragment(Calendar calendar, int fragment, int unit) {
if(calendar == null) {
throw new IllegalArgumentException("The date must not be null");
}
long millisPerUnit = getMillisPerUnit(unit);
long result = 0;
// Fragments bigger than a day require a breakdown to days
switch (fragment) {
case Calendar.YEAR:
result += (calendar.get(Calendar.DAY_OF_YEAR) * MILLIS_PER_DAY) / millisPerUnit;
break;
case Calendar.MONTH:
result += (calendar.get(Calendar.DAY_OF_MONTH) * MILLIS_PER_DAY) / millisPerUnit;
break;
}
switch (fragment) {
// Number of days already calculated for these cases
case Calendar.YEAR:
case Calendar.MONTH:
// The rest of the valid cases
case Calendar.DAY_OF_YEAR:
case Calendar.DATE:
result += (calendar.get(Calendar.HOUR_OF_DAY) * MILLIS_PER_HOUR) / millisPerUnit;
//$FALL-THROUGH$
case Calendar.HOUR_OF_DAY:
result += (calendar.get(Calendar.MINUTE) * MILLIS_PER_MINUTE) / millisPerUnit;
//$FALL-THROUGH$
case Calendar.MINUTE:
result += (calendar.get(Calendar.SECOND) * MILLIS_PER_SECOND) / millisPerUnit;
//$FALL-THROUGH$
case Calendar.SECOND:
result += (calendar.get(Calendar.MILLISECOND) * 1) / millisPerUnit;
break;
case Calendar.MILLISECOND:
break;//never useful
default:
throw new IllegalArgumentException("The fragment " + fragment + " is not supported");
}
return result;
}
private static long getMillisPerUnit(int unit) {
long result = Long.MAX_VALUE;
switch (unit) {
case Calendar.DAY_OF_YEAR:
case Calendar.DATE:
result = MILLIS_PER_DAY;
break;
case Calendar.HOUR_OF_DAY:
result = MILLIS_PER_HOUR;
break;
case Calendar.MINUTE:
result = MILLIS_PER_MINUTE;
break;
case Calendar.SECOND:
result = MILLIS_PER_SECOND;
break;
case Calendar.MILLISECOND:
result = 1;
break;
default: throw new IllegalArgumentException("The unit " + unit + " cannot be represented is milleseconds");
}
return result;
}
/**
* <p>Date iterator.</p>
*/
@SuppressWarnings("rawtypes")
static class DateIterator implements Iterator {
private final Calendar endFinal;
private final Calendar spot;
DateIterator(Calendar startFinal, Calendar endFinal) {
super();
this.endFinal = endFinal;
spot = startFinal;
spot.add(Calendar.DATE, -1);
}
public boolean hasNext() {
return spot.before(endFinal);
}
public Object next() {
if (spot.equals(endFinal)) {
throw new NoSuchElementException();
}
spot.add(Calendar.DATE, 1);
return spot.clone();
}
public void remove() {
throw new UnsupportedOperationException();
}
}
}
/*------------------------------------------------------------------------------*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.accu.common.util.time;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import com.accu.common.util.StringUtils;
/**
* 时间跨度格式化工具
* <p>Duration formatting utilities and constants. The following table describes the tokens
* used in the pattern language for formatting. </p>
* <table border="1">
* <tr><th>character</th><th>duration element</th></tr>
* <tr><td>y</td><td>years</td></tr>
* <tr><td>M</td><td>months</td></tr>
* <tr><td>d</td><td>days</td></tr>
* <tr><td>H</td><td>hours</td></tr>
* <tr><td>m</td><td>minutes</td></tr>
* <tr><td>s</td><td>seconds</td></tr>
* <tr><td>S</td><td>milliseconds</td></tr>
* </table>
*
* @author Apache Software Foundation
* @author Apache Ant - DateUtils
* @author <a href="mailto:sbailliez@apache.org">Stephane Bailliez</a>
* @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
* @since 2.1
* @version $Id: DurationFormatUtils.java 905684 2010-02-02 16:03:07Z niallp $
*/
public class DurationFormatUtils {
/**
* <p>DurationFormatUtils instances should NOT be constructed in standard programming.</p>
*
* <p>This constructor is public to permit tools that require a JavaBean instance
* to operate.</p>
*/
public DurationFormatUtils() {
super();
}
/**
* <p>Pattern used with <code>FastDateFormat</code> and <code>SimpleDateFormat</code>
* for the ISO8601 period format used in durations.</p>
*
* @see org.apache.commons.lang.time.FastDateFormat
* @see java.text.SimpleDateFormat
*/
public static final String ISO_EXTENDED_FORMAT_PATTERN = "'P'yyyy'Y'M'M'd'DT'H'H'm'M's.S'S'";
//-----------------------------------------------------------------------
/**
* <p>Formats the time gap as a string.</p>
*
* <p>The format used is ISO8601-like:
* <i>H</i>:<i>m</i>:<i>s</i>.<i>S</i>.</p>
*
* @param durationMillis the duration to format
* @return the time as a String
*/
public static String formatDurationHMS(long durationMillis) {
return formatDuration(durationMillis, "H:mm:ss.SSS");
}
/**
* <p>Formats the time gap as a string.</p>
*
* <p>The format used is the ISO8601 period format.</p>
*
* <p>This method formats durations using the days and lower fields of the
* ISO format pattern, such as P7D6TH5M4.321S.</p>
*
* @param durationMillis the duration to format
* @return the time as a String
*/
public static String formatDurationISO(long durationMillis) {
return formatDuration(durationMillis, ISO_EXTENDED_FORMAT_PATTERN, false);
}
/**
* <p>Formats the time gap as a string, using the specified format, and padding with zeros and
* using the default timezone.</p>
*
* <p>This method formats durations using the days and lower fields of the
* format pattern. Months and larger are not used.</p>
*
* @param durationMillis the duration to format
* @param format the way in which to format the duration
* @return the time as a String
*/
public static String formatDuration(long durationMillis, String format) {
return formatDuration(durationMillis, format, true);
}
/**
* <p>Formats the time gap as a string, using the specified format.
* Padding the left hand side of numbers with zeroes is optional and
* the timezone may be specified.</p>
*
* <p>This method formats durations using the days and lower fields of the
* format pattern. Months and larger are not used.</p>
*
* @param durationMillis the duration to format
* @param format the way in which to format the duration
* @param padWithZeros whether to pad the left hand side of numbers with 0's
* @return the time as a String
*/
public static String formatDuration(long durationMillis, String format, boolean padWithZeros) {
Token[] tokens = lexx(format);
int days = 0;
int hours = 0;
int minutes = 0;
int seconds = 0;
int milliseconds = 0;
if (Token.containsTokenWithValue(tokens, d) ) {
days = (int) (durationMillis / DateUtils.MILLIS_PER_DAY);
durationMillis = durationMillis - (days * DateUtils.MILLIS_PER_DAY);
}
if (Token.containsTokenWithValue(tokens, H) ) {
hours = (int) (durationMillis / DateUtils.MILLIS_PER_HOUR);
durationMillis = durationMillis - (hours * DateUtils.MILLIS_PER_HOUR);
}
if (Token.containsTokenWithValue(tokens, m) ) {
minutes = (int) (durationMillis / DateUtils.MILLIS_PER_MINUTE);
durationMillis = durationMillis - (minutes * DateUtils.MILLIS_PER_MINUTE);
}
if (Token.containsTokenWithValue(tokens, s) ) {
seconds = (int) (durationMillis / DateUtils.MILLIS_PER_SECOND);
durationMillis = durationMillis - (seconds * DateUtils.MILLIS_PER_SECOND);
}
if (Token.containsTokenWithValue(tokens, S) ) {
milliseconds = (int) durationMillis;
}
return format(tokens, 0, 0, days, hours, minutes, seconds, milliseconds, padWithZeros);
}
/**
* <p>Formats an elapsed time into a plurialization correct string.</p>
*
* <p>This method formats durations using the days and lower fields of the
* format pattern. Months and larger are not used.</p>
*
* @param durationMillis the elapsed time to report in milliseconds
* @param suppressLeadingZeroElements suppresses leading 0 elements
* @param suppressTrailingZeroElements suppresses trailing 0 elements
* @return the formatted text in days/hours/minutes/seconds
*/
public static String formatDurationWords(
long durationMillis,
boolean suppressLeadingZeroElements,
boolean suppressTrailingZeroElements) {
// This method is generally replacable by the format method, but
// there are a series of tweaks and special cases that require
// trickery to replicate.
String duration = formatDuration(durationMillis, "d' days 'H' hours 'm' minutes 's' seconds'");
if (suppressLeadingZeroElements) {
// this is a temporary marker on the front. Like ^ in regexp.
duration = " " + duration;
String tmp = StringUtils.replaceOnce(duration, " 0 days", "");
if (tmp.length() != duration.length()) {
duration = tmp;
tmp = StringUtils.replaceOnce(duration, " 0 hours", "");
if (tmp.length() != duration.length()) {
duration = tmp;
tmp = StringUtils.replaceOnce(duration, " 0 minutes", "");
duration = tmp;
if (tmp.length() != duration.length()) {
duration = StringUtils.replaceOnce(tmp, " 0 seconds", "");
}
}
}
if (duration.length() != 0) {
// strip the space off again
duration = duration.substring(1);
}
}
if (suppressTrailingZeroElements) {
String tmp = StringUtils.replaceOnce(duration, " 0 seconds", "");
if (tmp.length() != duration.length()) {
duration = tmp;
tmp = StringUtils.replaceOnce(duration, " 0 minutes", "");
if (tmp.length() != duration.length()) {
duration = tmp;
tmp = StringUtils.replaceOnce(duration, " 0 hours", "");
if (tmp.length() != duration.length()) {
duration = StringUtils.replaceOnce(tmp, " 0 days", "");
}
}
}
}
// handle plurals
duration = " " + duration;
duration = StringUtils.replaceOnce(duration, " 1 seconds", " 1 second");
duration = StringUtils.replaceOnce(duration, " 1 minutes", " 1 minute");
duration = StringUtils.replaceOnce(duration, " 1 hours", " 1 hour");
duration = StringUtils.replaceOnce(duration, " 1 days", " 1 day");
return duration.trim();
}
//-----------------------------------------------------------------------
/**
* <p>Formats the time gap as a string.</p>
*
* <p>The format used is the ISO8601 period format.</p>
*
* @param startMillis the start of the duration to format
* @param endMillis the end of the duration to format
* @return the time as a String
*/
public static String formatPeriodISO(long startMillis, long endMillis) {
return formatPeriod(startMillis, endMillis, ISO_EXTENDED_FORMAT_PATTERN, false, TimeZone.getDefault());
}
/**
* <p>Formats the time gap as a string, using the specified format.
* Padding the left hand side of numbers with zeroes is optional.
*
* @param startMillis the start of the duration
* @param endMillis the end of the duration
* @param format the way in which to format the duration
* @return the time as a String
*/
public static String formatPeriod(long startMillis, long endMillis, String format) {
return formatPeriod(startMillis, endMillis, format, true, TimeZone.getDefault());
}
/**
* <p>Formats the time gap as a string, using the specified format.
* Padding the left hand side of numbers with zeroes is optional and
* the timezone may be specified. </p>
*
* <p>When calculating the difference between months/days, it chooses to
* calculate months first. So when working out the number of months and
* days between January 15th and March 10th, it choose 1 month and
* 23 days gained by choosing January->February = 1 month and then
* calculating days forwards, and not the 1 month and 26 days gained by
* choosing March -> February = 1 month and then calculating days
* backwards. </p>
*
* <p>For more control, the <a href="http://joda-time.sf.net/">Joda-Time</a>
* library is recommended.</p>
*
* @param startMillis the start of the duration
* @param endMillis the end of the duration
* @param format the way in which to format the duration
* @param padWithZeros whether to pad the left hand side of numbers with 0's
* @param timezone the millis are defined in
* @return the time as a String
*/
public static String formatPeriod(long startMillis, long endMillis, String format, boolean padWithZeros,
TimeZone timezone) {
// Used to optimise for differences under 28 days and
// called formatDuration(millis, format); however this did not work
// over leap years.
// TODO: Compare performance to see if anything was lost by
// losing this optimisation.
Token[] tokens = lexx(format);
// timezones get funky around 0, so normalizing everything to GMT
// stops the hours being off
Calendar start = Calendar.getInstance(timezone);
start.setTime(new Date(startMillis));
Calendar end = Calendar.getInstance(timezone);
end.setTime(new Date(endMillis));
// initial estimates
int milliseconds = end.get(Calendar.MILLISECOND) - start.get(Calendar.MILLISECOND);
int seconds = end.get(Calendar.SECOND) - start.get(Calendar.SECOND);
int minutes = end.get(Calendar.MINUTE) - start.get(Calendar.MINUTE);
int hours = end.get(Calendar.HOUR_OF_DAY) - start.get(Calendar.HOUR_OF_DAY);
int days = end.get(Calendar.DAY_OF_MONTH) - start.get(Calendar.DAY_OF_MONTH);
int months = end.get(Calendar.MONTH) - start.get(Calendar.MONTH);
int years = end.get(Calendar.YEAR) - start.get(Calendar.YEAR);
// each initial estimate is adjusted in case it is under 0
while (milliseconds < 0) {
milliseconds += 1000;
seconds -= 1;
}
while (seconds < 0) {
seconds += 60;
minutes -= 1;
}
while (minutes < 0) {
minutes += 60;
hours -= 1;
}
while (hours < 0) {
hours += 24;
days -= 1;
}
if (Token.containsTokenWithValue(tokens, M)) {
while (days < 0) {
days += start.getActualMaximum(Calendar.DAY_OF_MONTH);
months -= 1;
start.add(Calendar.MONTH, 1);
}
while (months < 0) {
months += 12;
years -= 1;
}
if (!Token.containsTokenWithValue(tokens, y) && years != 0) {
while (years != 0) {
months += 12 * years;
years = 0;
}
}
} else {
// there are no M's in the format string
if( !Token.containsTokenWithValue(tokens, y) ) {
int target = end.get(Calendar.YEAR);
if (months < 0) {
// target is end-year -1
target -= 1;
}
while ( (start.get(Calendar.YEAR) != target)) {
days += start.getActualMaximum(Calendar.DAY_OF_YEAR) - start.get(Calendar.DAY_OF_YEAR);
// Not sure I grok why this is needed, but the brutal tests show it is
if(start instanceof GregorianCalendar) {
if( (start.get(Calendar.MONTH) == Calendar.FEBRUARY) &&
(start.get(Calendar.DAY_OF_MONTH) == 29 ) )
{
days += 1;
}
}
start.add(Calendar.YEAR, 1);
days += start.get(Calendar.DAY_OF_YEAR);
}
years = 0;
}
while( start.get(Calendar.MONTH) != end.get(Calendar.MONTH) ) {
days += start.getActualMaximum(Calendar.DAY_OF_MONTH);
start.add(Calendar.MONTH, 1);
}
months = 0;
while (days < 0) {
days += start.getActualMaximum(Calendar.DAY_OF_MONTH);
months -= 1;
start.add(Calendar.MONTH, 1);
}
}
// The rest of this code adds in values that
// aren't requested. This allows the user to ask for the
// number of months and get the real count and not just 0->11.
if (!Token.containsTokenWithValue(tokens, d)) {
hours += 24 * days;
days = 0;
}
if (!Token.containsTokenWithValue(tokens, H)) {
minutes += 60 * hours;
hours = 0;
}
if (!Token.containsTokenWithValue(tokens, m)) {
seconds += 60 * minutes;
minutes = 0;
}
if (!Token.containsTokenWithValue(tokens, s)) {
milliseconds += 1000 * seconds;
seconds = 0;
}
return format(tokens, years, months, days, hours, minutes, seconds, milliseconds, padWithZeros);
}
//-----------------------------------------------------------------------
/**
* <p>The internal method to do the formatting.</p>
*
* @param tokens the tokens
* @param years the number of years
* @param months the number of months
* @param days the number of days
* @param hours the number of hours
* @param minutes the number of minutes
* @param seconds the number of seconds
* @param milliseconds the number of millis
* @param padWithZeros whether to pad
* @return the formatted string
*/
static String format(Token[] tokens, int years, int months, int days, int hours, int minutes, int seconds,
int milliseconds, boolean padWithZeros) {
StringBuffer buffer = new StringBuffer();
boolean lastOutputSeconds = false;
int sz = tokens.length;
for (int i = 0; i < sz; i++) {
Token token = tokens[i];
Object value = token.getValue();
int count = token.getCount();
if (value instanceof StringBuffer) {
buffer.append(value.toString());
} else {
if (value == y) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(years), count, '0') : Integer
.toString(years));
lastOutputSeconds = false;
} else if (value == M) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(months), count, '0') : Integer
.toString(months));
lastOutputSeconds = false;
} else if (value == d) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(days), count, '0') : Integer
.toString(days));
lastOutputSeconds = false;
} else if (value == H) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(hours), count, '0') : Integer
.toString(hours));
lastOutputSeconds = false;
} else if (value == m) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(minutes), count, '0') : Integer
.toString(minutes));
lastOutputSeconds = false;
} else if (value == s) {
buffer.append(padWithZeros ? StringUtils.leftPad(Integer.toString(seconds), count, '0') : Integer
.toString(seconds));
lastOutputSeconds = true;
} else if (value == S) {
if (lastOutputSeconds) {
milliseconds += 1000;
String str = padWithZeros
? StringUtils.leftPad(Integer.toString(milliseconds), count, '0')
: Integer.toString(milliseconds);
buffer.append(str.substring(1));
} else {
buffer.append(padWithZeros
? StringUtils.leftPad(Integer.toString(milliseconds), count, '0')
: Integer.toString(milliseconds));
}
lastOutputSeconds = false;
}
}
}
return buffer.toString();
}
static final Object y = "y";
static final Object M = "M";
static final Object d = "d";
static final Object H = "H";
static final Object m = "m";
static final Object s = "s";
static final Object S = "S";
/**
* Parses a classic date format string into Tokens
*
* @param format to parse
* @return array of Token[]
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
static Token[] lexx(String format) {
char[] array = format.toCharArray();
ArrayList list = new ArrayList(array.length);
boolean inLiteral = false;
StringBuffer buffer = null;
Token previous = null;
int sz = array.length;
for(int i=0; i<sz; i++) {
char ch = array[i];
if(inLiteral && ch != '\'') {
buffer.append(ch); // buffer can't be null if inLiteral is true
continue;
}
Object value = null;
switch(ch) {
// TODO: Need to handle escaping of '
case '\'' :
if(inLiteral) {
buffer = null;
inLiteral = false;
} else {
buffer = new StringBuffer();
list.add(new Token(buffer));
inLiteral = true;
}
break;
case 'y' : value = y; break;
case 'M' : value = M; break;
case 'd' : value = d; break;
case 'H' : value = H; break;
case 'm' : value = m; break;
case 's' : value = s; break;
case 'S' : value = S; break;
default :
if(buffer == null) {
buffer = new StringBuffer();
list.add(new Token(buffer));
}
buffer.append(ch);
}
if(value != null) {
if(previous != null && previous.getValue() == value) {
previous.increment();
} else {
Token token = new Token(value);
list.add(token);
previous = token;
}
buffer = null;
}
}
return (Token[]) list.toArray( new Token[list.size()] );
}
/**
* Element that is parsed from the format pattern.
*/
static class Token {
/**
* Helper method to determine if a set of tokens contain a value
*
* @param tokens set to look in
* @param value to look for
* @return boolean <code>true</code> if contained
*/
static boolean containsTokenWithValue(Token[] tokens, Object value) {
int sz = tokens.length;
for (int i = 0; i < sz; i++) {
if (tokens[i].getValue() == value) {
return true;
}
}
return false;
}
private Object value;
private int count;
/**
* Wraps a token around a value. A value would be something like a 'Y'.
*
* @param value to wrap
*/
Token(Object value) {
this.value = value;
this.count = 1;
}
/**
* Wraps a token around a repeated number of a value, for example it would
* store 'yyyy' as a value for y and a count of 4.
*
* @param value to wrap
* @param count to wrap
*/
Token(Object value, int count) {
this.value = value;
this.count = count;
}
/**
* Adds another one of the value
*/
void increment() {
count++;
}
/**
* Gets the current number of values represented
*
* @return int number of values represented
*/
int getCount() {
return count;
}
/**
* Gets the particular value this token represents.
*
* @return Object value
*/
Object getValue() {
return value;
}
/**
* Supports equality of this Token to another Token.
*
* @param obj2 Object to consider equality of
* @return boolean <code>true</code> if equal
*/
@Override
public boolean equals(Object obj2) {
if (obj2 instanceof Token) {
Token tok2 = (Token) obj2;
if (this.value.getClass() != tok2.value.getClass()) {
return false;
}
if (this.count != tok2.count) {
return false;
}
if (this.value instanceof StringBuffer) {
return this.value.toString().equals(tok2.value.toString());
} else if (this.value instanceof Number) {
return this.value.equals(tok2.value);
} else {
return this.value == tok2.value;
}
}
return false;
}
/**
* Returns a hashcode for the token equal to the
* hashcode for the token's value. Thus 'TT' and 'TTTT'
* will have the same hashcode.
*
* @return The hashcode for the token
*/
@Override
public int hashCode() {
return this.value.hashCode();
}
/**
* Represents this token as a String.
*
* @return String representation of the token
*/
@Override
public String toString() {
return StringUtils.repeat(this.value.toString(), this.count);
}
}
}
/*------------------------------------------------------------------------------*/
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.accu.common.util.time;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.text.DateFormat;
import java.text.DateFormatSymbols;
import java.text.FieldPosition;
import java.text.Format;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;
/**
* 将java.text.SimpleDateFormat包装一层，提供线程安全
* <p>FastDateFormat is a fast and thread-safe version of
* {@link java.text.SimpleDateFormat}.</p>
*
* <p>This class can be used as a direct replacement to
* <code>SimpleDateFormat</code> in most formatting situations.
* This class is especially useful in multi-threaded server environments.
* <code>SimpleDateFormat</code> is not thread-safe in any JDK version,
* nor will it be as Sun have closed the bug/RFE.
* </p>
*
* <p>Only formatting is supported, but all patterns are compatible with
* SimpleDateFormat (except time zones - see below).</p>
*
* <p>Java 1.4 introduced a new pattern letter, <code>'Z'</code>, to represent
* time zones in RFC822 format (eg. <code>+0800</code> or <code>-1100</code>).
* This pattern letter can be used here (on all JDK versions).</p>
*
* <p>In addition, the pattern <code>'ZZ'</code> has been made to represent
* ISO8601 full format time zones (eg. <code>+08:00</code> or <code>-11:00</code>).
* This introduces a minor incompatibility with Java 1.4, but at a gain of
* useful functionality.</p>
*
* @author Apache Software Foundation
* @author TeaTrove project
* @author Brian S O'Neill
* @author Sean Schofield
* @author Gary Gregory
* @author Nikolay Metchev
* @since 2.0
* @version $Id: FastDateFormat.java 905684 2010-02-02 16:03:07Z niallp $
*/
public class FastDateFormat extends Format {
// A lot of the speed in this class comes from caching, but some comes
// from the special int to StringBuffer conversion.
//
// The following produces a padded 2 digit number:
// buffer.append((char)(value / 10 + '0'));
// buffer.append((char)(value % 10 + '0'));
//
// Note that the fastest append to StringBuffer is a single char (used here).
// Note that Integer.toString() is not called, the conversion is simply
// taking the value and adding (mathematically) the ASCII value for '0'.
// So, don't change this code! It works and is very fast.
/**
* Required for serialization support.
*
* @see java.io.Serializable
*/
private static final long serialVersionUID = 1L;
/**
* FULL locale dependent date or time style.
*/
public static final int FULL = DateFormat.FULL;
/**
* LONG locale dependent date or time style.
*/
public static final int LONG = DateFormat.LONG;
/**
* MEDIUM locale dependent date or time style.
*/
public static final int MEDIUM = DateFormat.MEDIUM;
/**
* SHORT locale dependent date or time style.
*/
public static final int SHORT = DateFormat.SHORT;
private static String cDefaultPattern; // lazily initialised by getInstance()
@SuppressWarnings("rawtypes")
private static final Map cInstanceCache = new HashMap(7);
@SuppressWarnings("rawtypes")
private static final Map cDateInstanceCache = new HashMap(7);
@SuppressWarnings("rawtypes")
private static final Map cTimeInstanceCache = new HashMap(7);
@SuppressWarnings("rawtypes")
private static final Map cDateTimeInstanceCache = new HashMap(7);
@SuppressWarnings("rawtypes")
private static final Map cTimeZoneDisplayCache = new HashMap(7);
/**
* The pattern.
*/
private final String mPattern;
/**
* The time zone.
*/
private final TimeZone mTimeZone;
/**
* Whether the time zone overrides any on Calendars.
*/
private final boolean mTimeZoneForced;
/**
* The locale.
*/
private final Locale mLocale;
/**
* Whether the locale overrides the default.
*/
private final boolean mLocaleForced;
/**
* The parsed rules.
*/
private transient Rule[] mRules;
/**
* The estimated maximum length.
*/
private transient int mMaxLengthEstimate;
//-----------------------------------------------------------------------
/**
* <p>Gets a formatter instance using the default pattern in the
* default locale.</p>
*
* @return a date/time formatter
*/
public static FastDateFormat getInstance() {
return getInstance(getDefaultPattern(), null, null);
}
/**
* <p>Gets a formatter instance using the specified pattern in the
* default locale.</p>
*
* @param pattern {@link java.text.SimpleDateFormat} compatible
* pattern
* @return a pattern based date/time formatter
* @throws IllegalArgumentException if pattern is invalid
*/
public static FastDateFormat getInstance(String pattern) {
return getInstance(pattern, null, null);
}
/**
* <p>Gets a formatter instance using the specified pattern and
* time zone.</p>
*
* @param pattern {@link java.text.SimpleDateFormat} compatible
* pattern
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @return a pattern based date/time formatter
* @throws IllegalArgumentException if pattern is invalid
*/
public static FastDateFormat getInstance(String pattern, TimeZone timeZone) {
return getInstance(pattern, timeZone, null);
}
/**
* <p>Gets a formatter instance using the specified pattern and
* locale.</p>
*
* @param pattern {@link java.text.SimpleDateFormat} compatible
* pattern
* @param locale optional locale, overrides system locale
* @return a pattern based date/time formatter
* @throws IllegalArgumentException if pattern is invalid
*/
public static FastDateFormat getInstance(String pattern, Locale locale) {
return getInstance(pattern, null, locale);
}
/**
* <p>Gets a formatter instance using the specified pattern, time zone
* and locale.</p>
*
* @param pattern {@link java.text.SimpleDateFormat} compatible
* pattern
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @param locale optional locale, overrides system locale
* @return a pattern based date/time formatter
* @throws IllegalArgumentException if pattern is invalid
* or <code>null</code>
*/
@SuppressWarnings("unchecked")
public static synchronized FastDateFormat getInstance(String pattern, TimeZone timeZone, Locale locale) {
FastDateFormat emptyFormat = new FastDateFormat(pattern, timeZone, locale);
FastDateFormat format = (FastDateFormat) cInstanceCache.get(emptyFormat);
if (format == null) {
format = emptyFormat;
format.init(); // convert shell format into usable one
cInstanceCache.put(format, format); // this is OK!
}
return format;
}
//-----------------------------------------------------------------------
/**
* <p>Gets a date formatter instance using the specified style in the
* default time zone and locale.</p>
*
* @param style date style: FULL, LONG, MEDIUM, or SHORT
* @return a localized standard date formatter
* @throws IllegalArgumentException if the Locale has no date
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateInstance(int style) {
return getDateInstance(style, null, null);
}
/**
* <p>Gets a date formatter instance using the specified style and
* locale in the default time zone.</p>
*
* @param style date style: FULL, LONG, MEDIUM, or SHORT
* @param locale optional locale, overrides system locale
* @return a localized standard date formatter
* @throws IllegalArgumentException if the Locale has no date
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateInstance(int style, Locale locale) {
return getDateInstance(style, null, locale);
}
/**
* <p>Gets a date formatter instance using the specified style and
* time zone in the default locale.</p>
*
* @param style date style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @return a localized standard date formatter
* @throws IllegalArgumentException if the Locale has no date
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateInstance(int style, TimeZone timeZone) {
return getDateInstance(style, timeZone, null);
}
/**
* <p>Gets a date formatter instance using the specified style, time
* zone and locale.</p>
*
* @param style date style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @param locale optional locale, overrides system locale
* @return a localized standard date formatter
* @throws IllegalArgumentException if the Locale has no date
* pattern defined
*/
@SuppressWarnings("unchecked")
public static synchronized FastDateFormat getDateInstance(int style, TimeZone timeZone, Locale locale) {
Object key = new Integer(style);
if (timeZone != null) {
key = new Pair(key, timeZone);
}
if (locale == null) {
locale = Locale.getDefault();
}
key = new Pair(key, locale);
FastDateFormat format = (FastDateFormat) cDateInstanceCache.get(key);
if (format == null) {
try {
SimpleDateFormat formatter = (SimpleDateFormat) DateFormat.getDateInstance(style, locale);
String pattern = formatter.toPattern();
format = getInstance(pattern, timeZone, locale);
cDateInstanceCache.put(key, format);
} catch (ClassCastException ex) {
throw new IllegalArgumentException("No date pattern for locale: " + locale);
}
}
return format;
}
//-----------------------------------------------------------------------
/**
* <p>Gets a time formatter instance using the specified style in the
* default time zone and locale.</p>
*
* @param style time style: FULL, LONG, MEDIUM, or SHORT
* @return a localized standard time formatter
* @throws IllegalArgumentException if the Locale has no time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getTimeInstance(int style) {
return getTimeInstance(style, null, null);
}
/**
* <p>Gets a time formatter instance using the specified style and
* locale in the default time zone.</p>
*
* @param style time style: FULL, LONG, MEDIUM, or SHORT
* @param locale optional locale, overrides system locale
* @return a localized standard time formatter
* @throws IllegalArgumentException if the Locale has no time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getTimeInstance(int style, Locale locale) {
return getTimeInstance(style, null, locale);
}
/**
* <p>Gets a time formatter instance using the specified style and
* time zone in the default locale.</p>
*
* @param style time style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted time
* @return a localized standard time formatter
* @throws IllegalArgumentException if the Locale has no time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getTimeInstance(int style, TimeZone timeZone) {
return getTimeInstance(style, timeZone, null);
}
/**
* <p>Gets a time formatter instance using the specified style, time
* zone and locale.</p>
*
* @param style time style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted time
* @param locale optional locale, overrides system locale
* @return a localized standard time formatter
* @throws IllegalArgumentException if the Locale has no time
* pattern defined
*/
@SuppressWarnings("unchecked")
public static synchronized FastDateFormat getTimeInstance(int style, TimeZone timeZone, Locale locale) {
Object key = new Integer(style);
if (timeZone != null) {
key = new Pair(key, timeZone);
}
if (locale != null) {
key = new Pair(key, locale);
}
FastDateFormat format = (FastDateFormat) cTimeInstanceCache.get(key);
if (format == null) {
if (locale == null) {
locale = Locale.getDefault();
}
try {
SimpleDateFormat formatter = (SimpleDateFormat) DateFormat.getTimeInstance(style, locale);
String pattern = formatter.toPattern();
format = getInstance(pattern, timeZone, locale);
cTimeInstanceCache.put(key, format);
} catch (ClassCastException ex) {
throw new IllegalArgumentException("No date pattern for locale: " + locale);
}
}
return format;
}
//-----------------------------------------------------------------------
/**
* <p>Gets a date/time formatter instance using the specified style
* in the default time zone and locale.</p>
*
* @param dateStyle date style: FULL, LONG, MEDIUM, or SHORT
* @param timeStyle time style: FULL, LONG, MEDIUM, or SHORT
* @return a localized standard date/time formatter
* @throws IllegalArgumentException if the Locale has no date/time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateTimeInstance(
int dateStyle, int timeStyle) {
return getDateTimeInstance(dateStyle, timeStyle, null, null);
}
/**
* <p>Gets a date/time formatter instance using the specified style and
* locale in the default time zone.</p>
*
* @param dateStyle date style: FULL, LONG, MEDIUM, or SHORT
* @param timeStyle time style: FULL, LONG, MEDIUM, or SHORT
* @param locale optional locale, overrides system locale
* @return a localized standard date/time formatter
* @throws IllegalArgumentException if the Locale has no date/time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateTimeInstance(
int dateStyle, int timeStyle, Locale locale) {
return getDateTimeInstance(dateStyle, timeStyle, null, locale);
}
/**
* <p>Gets a date/time formatter instance using the specified style and
* time zone in the default locale.</p>
*
* @param dateStyle date style: FULL, LONG, MEDIUM, or SHORT
* @param timeStyle time style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @return a localized standard date/time formatter
* @throws IllegalArgumentException if the Locale has no date/time
* pattern defined
* @since 2.1
*/
public static FastDateFormat getDateTimeInstance(
int dateStyle, int timeStyle, TimeZone timeZone) {
return getDateTimeInstance(dateStyle, timeStyle, timeZone, null);
}
/**
* <p>Gets a date/time formatter instance using the specified style,
* time zone and locale.</p>
*
* @param dateStyle date style: FULL, LONG, MEDIUM, or SHORT
* @param timeStyle time style: FULL, LONG, MEDIUM, or SHORT
* @param timeZone optional time zone, overrides time zone of
* formatted date
* @param locale optional locale, overrides system locale
* @return a localized standard date/time formatter
* @throws IllegalArgumentException if the Locale has no date/time
* pattern defined
*/
@SuppressWarnings("unchecked")
public static synchronized FastDateFormat getDateTimeInstance(int dateStyle, int timeStyle, TimeZone timeZone,
Locale locale) {
Object key = new Pair(new Integer(dateStyle), new Integer(timeStyle));
if (timeZone != null) {
key = new Pair(key, timeZone);
}
if (locale == null) {
locale = Locale.getDefault();
}
key = new Pair(key, locale);
FastDateFormat format = (FastDateFormat) cDateTimeInstanceCache.get(key);
if (format == null) {
try {
SimpleDateFormat formatter = (SimpleDateFormat) DateFormat.getDateTimeInstance(dateStyle, timeStyle,
locale);
String pattern = formatter.toPattern();
format = getInstance(pattern, timeZone, locale);
cDateTimeInstanceCache.put(key, format);
} catch (ClassCastException ex) {
throw new IllegalArgumentException("No date time pattern for locale: " + locale);
}
}
return format;
}
//-----------------------------------------------------------------------
/**
* <p>Gets the time zone display name, using a cache for performance.</p>
*
* @param tz the zone to query
* @param daylight true if daylight savings
* @param style the style to use <code>TimeZone.LONG</code>
* or <code>TimeZone.SHORT</code>
* @param locale the locale to use
* @return the textual name of the time zone
*/
@SuppressWarnings("unchecked")
static synchronized String getTimeZoneDisplay(TimeZone tz, boolean daylight, int style, Locale locale) {
Object key = new TimeZoneDisplayKey(tz, daylight, style, locale);
String value = (String) cTimeZoneDisplayCache.get(key);
if (value == null) {
// This is a very slow call, so cache the results.
value = tz.getDisplayName(daylight, style, locale);
cTimeZoneDisplayCache.put(key, value);
}
return value;
}
/**
* <p>Gets the default pattern.</p>
*
* @return the default pattern
*/
private static synchronized String getDefaultPattern() {
if (cDefaultPattern == null) {
cDefaultPattern = new SimpleDateFormat().toPattern();
}
return cDefaultPattern;
}
// Constructor
//-----------------------------------------------------------------------
/**
* <p>Constructs a new FastDateFormat.</p>
*
* @param pattern {@link java.text.SimpleDateFormat} compatible
* pattern
* @param timeZone time zone to use, <code>null</code> means use
* default for <code>Date</code> and value within for
* <code>Calendar</code>
* @param locale locale, <code>null</code> means use system
* default
* @throws IllegalArgumentException if pattern is invalid or
* <code>null</code>
*/
protected FastDateFormat(String pattern, TimeZone timeZone, Locale locale) {
super();
if (pattern == null) {
throw new IllegalArgumentException("The pattern must not be null");
}
mPattern = pattern;
mTimeZoneForced = (timeZone != null);
if (timeZone == null) {
timeZone = TimeZone.getDefault();
}
mTimeZone = timeZone;
mLocaleForced = (locale != null);
if (locale == null) {
locale = Locale.getDefault();
}
mLocale = locale;
}
/**
* <p>Initializes the instance for first use.</p>
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
protected void init() {
List rulesList = parsePattern();
mRules = (Rule[]) rulesList.toArray(new Rule[rulesList.size()]);
int len = 0;
for (int i=mRules.length; --i >= 0; ) {
len += mRules[i].estimateLength();
}
mMaxLengthEstimate = len;
}
// Parse the pattern
//-----------------------------------------------------------------------
/**
* <p>Returns a list of Rules given a pattern.</p>
*
* @return a <code>List</code> of Rule objects
* @throws IllegalArgumentException if pattern is invalid
*/
@SuppressWarnings({ "rawtypes", "unchecked" })
protected List parsePattern() {
DateFormatSymbols symbols = new DateFormatSymbols(mLocale);
List rules = new ArrayList();
String[] ERAs = symbols.getEras();
String[] months = symbols.getMonths();
String[] shortMonths = symbols.getShortMonths();
String[] weekdays = symbols.getWeekdays();
String[] shortWeekdays = symbols.getShortWeekdays();
String[] AmPmStrings = symbols.getAmPmStrings();
int length = mPattern.length();
int[] indexRef = new int[1];
for (int i = 0; i < length; i++) {
indexRef[0] = i;
String token = parseToken(mPattern, indexRef);
i = indexRef[0];
int tokenLen = token.length();
if (tokenLen == 0) {
break;
}
Rule rule;
char c = token.charAt(0);
switch (c) {
case 'G': // era designator (text)
rule = new TextField(Calendar.ERA, ERAs);
break;
case 'y': // year (number)
if (tokenLen >= 4) {
rule = selectNumberRule(Calendar.YEAR, tokenLen);
} else {
rule = TwoDigitYearField.INSTANCE;
}
break;
case 'M': // month in year (text and number)
if (tokenLen >= 4) {
rule = new TextField(Calendar.MONTH, months);
} else if (tokenLen == 3) {
rule = new TextField(Calendar.MONTH, shortMonths);
} else if (tokenLen == 2) {
rule = TwoDigitMonthField.INSTANCE;
} else {
rule = UnpaddedMonthField.INSTANCE;
}
break;
case 'd': // day in month (number)
rule = selectNumberRule(Calendar.DAY_OF_MONTH, tokenLen);
break;
case 'h': // hour in am/pm (number, 1..12)
rule = new TwelveHourField(selectNumberRule(Calendar.HOUR, tokenLen));
break;
case 'H': // hour in day (number, 0..23)
rule = selectNumberRule(Calendar.HOUR_OF_DAY, tokenLen);
break;
case 'm': // minute in hour (number)
rule = selectNumberRule(Calendar.MINUTE, tokenLen);
break;
case 's': // second in minute (number)
rule = selectNumberRule(Calendar.SECOND, tokenLen);
break;
case 'S': // millisecond (number)
rule = selectNumberRule(Calendar.MILLISECOND, tokenLen);
break;
case 'E': // day in week (text)
rule = new TextField(Calendar.DAY_OF_WEEK, tokenLen < 4 ? shortWeekdays : weekdays);
break;
case 'D': // day in year (number)
rule = selectNumberRule(Calendar.DAY_OF_YEAR, tokenLen);
break;
case 'F': // day of week in month (number)
rule = selectNumberRule(Calendar.DAY_OF_WEEK_IN_MONTH, tokenLen);
break;
case 'w': // week in year (number)
rule = selectNumberRule(Calendar.WEEK_OF_YEAR, tokenLen);
break;
case 'W': // week in month (number)
rule = selectNumberRule(Calendar.WEEK_OF_MONTH, tokenLen);
break;
case 'a': // am/pm marker (text)
rule = new TextField(Calendar.AM_PM, AmPmStrings);
break;
case 'k': // hour in day (1..24)
rule = new TwentyFourHourField(selectNumberRule(Calendar.HOUR_OF_DAY, tokenLen));
break;
case 'K': // hour in am/pm (0..11)
rule = selectNumberRule(Calendar.HOUR, tokenLen);
break;
case 'z': // time zone (text)
if (tokenLen >= 4) {
rule = new TimeZoneNameRule(mTimeZone, mTimeZoneForced, mLocale, TimeZone.LONG);
} else {
rule = new TimeZoneNameRule(mTimeZone, mTimeZoneForced, mLocale, TimeZone.SHORT);
}
break;
case 'Z': // time zone (value)
if (tokenLen == 1) {
rule = TimeZoneNumberRule.INSTANCE_NO_COLON;
} else {
rule = TimeZoneNumberRule.INSTANCE_COLON;
}
break;
case '\'': // literal text
String sub = token.substring(1);
if (sub.length() == 1) {
rule = new CharacterLiteral(sub.charAt(0));
} else {
rule = new StringLiteral(sub);
}
break;
default:
throw new IllegalArgumentException("Illegal pattern component: " + token);
}
rules.add(rule);
}
return rules;
}
/**
* <p>Performs the parsing of tokens.</p>
*
* @param pattern the pattern
* @param indexRef index references
* @return parsed token
*/
protected String parseToken(String pattern, int[] indexRef) {
StringBuffer buf = new StringBuffer();
int i = indexRef[0];
int length = pattern.length();
char c = pattern.charAt(i);
if (c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z') {
// Scan a run of the same character, which indicates a time
// pattern.
buf.append(c);
while (i + 1 < length) {
char peek = pattern.charAt(i + 1);
if (peek == c) {
buf.append(c);
i++;
} else {
break;
}
}
} else {
// This will identify token as text.
buf.append('\'');
boolean inLiteral = false;
for (; i < length; i++) {
c = pattern.charAt(i);
if (c == '\'') {
if (i + 1 < length && pattern.charAt(i + 1) == '\'') {
// '' is treated as escaped '
i++;
buf.append(c);
} else {
inLiteral = !inLiteral;
}
} else if (!inLiteral &&
(c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z')) {
i--;
break;
} else {
buf.append(c);
}
}
}
indexRef[0] = i;
return buf.toString();
}
/**
* <p>Gets an appropriate rule for the padding required.</p>
*
* @param field the field to get a rule for
* @param padding the padding required
* @return a new rule with the correct padding
*/
protected NumberRule selectNumberRule(int field, int padding) {
switch (padding) {
case 1:
return new UnpaddedNumberField(field);
case 2:
return new TwoDigitNumberField(field);
default:
return new PaddedNumberField(field, padding);
}
}
// Format methods
//-----------------------------------------------------------------------
/**
* <p>Formats a <code>Date</code>, <code>Calendar</code> or
* <code>Long</code> (milliseconds) object.</p>
*
* @param obj the object to format
* @param toAppendTo the buffer to append to
* @param pos the position - ignored
* @return the buffer passed in
*/
@Override
public StringBuffer format(Object obj, StringBuffer toAppendTo, FieldPosition pos) {
if (obj instanceof Date) {
return format((Date) obj, toAppendTo);
} else if (obj instanceof Calendar) {
return format((Calendar) obj, toAppendTo);
} else if (obj instanceof Long) {
return format(((Long) obj).longValue(), toAppendTo);
} else {
throw new IllegalArgumentException("Unknown class: " +
(obj == null ? "<null>" : obj.getClass().getName()));
}
}
/**
* <p>Formats a millisecond <code>long</code> value.</p>
*
* @param millis the millisecond value to format
* @return the formatted string
* @since 2.1
*/
public String format(long millis) {
return format(new Date(millis));
}
/**
* <p>Formats a <code>Date</code> object.</p>
*
* @param date the date to format
* @return the formatted string
*/
public String format(Date date) {
Calendar c = new GregorianCalendar(mTimeZone);
c.setTime(date);
return applyRules(c, new StringBuffer(mMaxLengthEstimate)).toString();
}
/**
* <p>Formats a <code>Calendar</code> object.</p>
*
* @param calendar the calendar to format
* @return the formatted string
*/
public String format(Calendar calendar) {
return format(calendar, new StringBuffer(mMaxLengthEstimate)).toString();
}
/**
* <p>Formats a milliseond <code>long</code> value into the
* supplied <code>StringBuffer</code>.</p>
*
* @param millis the millisecond value to format
* @param buf the buffer to format into
* @return the specified string buffer
* @since 2.1
*/
public StringBuffer format(long millis, StringBuffer buf) {
return format(new Date(millis), buf);
}
/**
* <p>Formats a <code>Date</code> object into the
* supplied <code>StringBuffer</code>.</p>
*
* @param date the date to format
* @param buf the buffer to format into
* @return the specified string buffer
*/
public StringBuffer format(Date date, StringBuffer buf) {
Calendar c = new GregorianCalendar(mTimeZone);
c.setTime(date);
return applyRules(c, buf);
}
/**
* <p>Formats a <code>Calendar</code> object into the
* supplied <code>StringBuffer</code>.</p>
*
* @param calendar the calendar to format
* @param buf the buffer to format into
* @return the specified string buffer
*/
public StringBuffer format(Calendar calendar, StringBuffer buf) {
if (mTimeZoneForced) {
calendar.getTime(); /// LANG-538
calendar = (Calendar) calendar.clone();
calendar.setTimeZone(mTimeZone);
}
return applyRules(calendar, buf);
}
/**
* <p>Performs the formatting by applying the rules to the
* specified calendar.</p>
*
* @param calendar the calendar to format
* @param buf the buffer to format into
* @return the specified string buffer
*/
protected StringBuffer applyRules(Calendar calendar, StringBuffer buf) {
Rule[] rules = mRules;
int len = mRules.length;
for (int i = 0; i < len; i++) {
rules[i].appendTo(buf, calendar);
}
return buf;
}
// Parsing
//-----------------------------------------------------------------------
/**
* <p>Parsing is not supported.</p>
*
* @param source the string to parse
* @param pos the parsing position
* @return <code>null</code> as not supported
*/
@Override
public Object parseObject(String source, ParsePosition pos) {
pos.setIndex(0);
pos.setErrorIndex(0);
return null;
}
// Accessors
//-----------------------------------------------------------------------
/**
* <p>Gets the pattern used by this formatter.</p>
*
* @return the pattern, {@link java.text.SimpleDateFormat} compatible
*/
public String getPattern() {
return mPattern;
}
/**
* <p>Gets the time zone used by this formatter.</p>
*
* <p>This zone is always used for <code>Date</code> formatting.
* If a <code>Calendar</code> is passed in to be formatted, the
* time zone on that may be used depending on
* {@link #getTimeZoneOverridesCalendar()}.</p>
*
* @return the time zone
*/
public TimeZone getTimeZone() {
return mTimeZone;
}
/**
* <p>Returns <code>true</code> if the time zone of the
* calendar overrides the time zone of the formatter.</p>
*
* @return <code>true</code> if time zone of formatter
* overridden for calendars
*/
public boolean getTimeZoneOverridesCalendar() {
return mTimeZoneForced;
}
/**
* <p>Gets the locale used by this formatter.</p>
*
* @return the locale
*/
public Locale getLocale() {
return mLocale;
}
/**
* <p>Gets an estimate for the maximum string length that the
* formatter will produce.</p>
*
* <p>The actual formatted length will almost always be less than or
* equal to this amount.</p>
*
* @return the maximum formatted length
*/
public int getMaxLengthEstimate() {
return mMaxLengthEstimate;
}
// Basics
//-----------------------------------------------------------------------
/**
* <p>Compares two objects for equality.</p>
*
* @param obj the object to compare to
* @return <code>true</code> if equal
*/
@Override
public boolean equals(Object obj) {
if (obj instanceof FastDateFormat == false) {
return false;
}
FastDateFormat other = (FastDateFormat) obj;
if (
(mPattern == other.mPattern || mPattern.equals(other.mPattern)) &&
(mTimeZone == other.mTimeZone || mTimeZone.equals(other.mTimeZone)) &&
(mLocale == other.mLocale || mLocale.equals(other.mLocale)) &&
(mTimeZoneForced == other.mTimeZoneForced) &&
(mLocaleForced == other.mLocaleForced)
) {
return true;
}
return false;
}
/**
* <p>Returns a hashcode compatible with equals.</p>
*
* @return a hashcode compatible with equals
*/
@Override
public int hashCode() {
int total = 0;
total += mPattern.hashCode();
total += mTimeZone.hashCode();
total += (mTimeZoneForced ? 1 : 0);
total += mLocale.hashCode();
total += (mLocaleForced ? 1 : 0);
return total;
}
/**
* <p>Gets a debugging string version of this formatter.</p>
*
* @return a debugging string
*/
@Override
public String toString() {
return "FastDateFormat[" + mPattern + "]";
}
// Serializing
//-----------------------------------------------------------------------
/**
* Create the object after serialization. This implementation reinitializes the
* transient properties.
*
* @param in ObjectInputStream from which the object is being deserialized.
* @throws IOException if there is an IO issue.
* @throws ClassNotFoundException if a class cannot be found.
*/
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
init();
}
// Rules
//-----------------------------------------------------------------------
/**
* <p>Inner class defining a rule.</p>
*/
private interface Rule {
/**
* Returns the estimated lentgh of the result.
*
* @return the estimated length
*/
int estimateLength();
/**
* Appends the value of the specified calendar to the output buffer based on the rule implementation.
*
* @param buffer the output buffer
* @param calendar calendar to be appended
*/
void appendTo(StringBuffer buffer, Calendar calendar);
}
/**
* <p>Inner class defining a numeric rule.</p>
*/
private interface NumberRule extends Rule {
/**
* Appends the specified value to the output buffer based on the rule implementation.
*
* @param buffer the output buffer
* @param value the value to be appended
*/
void appendTo(StringBuffer buffer, int value);
}
/**
* <p>Inner class to output a constant single character.</p>
*/
private static class CharacterLiteral implements Rule {
private final char mValue;
/**
* Constructs a new instance of <code>CharacterLiteral</code>
* to hold the specified value.
*
* @param value the character literal
*/
CharacterLiteral(char value) {
mValue = value;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 1;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
buffer.append(mValue);
}
}
/**
* <p>Inner class to output a constant string.</p>
*/
private static class StringLiteral implements Rule {
private final String mValue;
/**
* Constructs a new instance of <code>StringLiteral</code>
* to hold the specified value.
*
* @param value the string literal
*/
StringLiteral(String value) {
mValue = value;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return mValue.length();
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
buffer.append(mValue);
}
}
/**
* <p>Inner class to output one of a set of values.</p>
*/
private static class TextField implements Rule {
private final int mField;
private final String[] mValues;
/**
* Constructs an instance of <code>TextField</code>
* with the specified field and values.
*
* @param field the field
* @param values the field values
*/
TextField(int field, String[] values) {
mField = field;
mValues = values;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
int max = 0;
for (int i=mValues.length; --i >= 0; ) {
int len = mValues[i].length();
if (len > max) {
max = len;
}
}
return max;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
buffer.append(mValues[calendar.get(mField)]);
}
}
/**
* <p>Inner class to output an unpadded number.</p>
*/
private static class UnpaddedNumberField implements NumberRule {
private final int mField;
/**
* Constructs an instance of <code>UnpadedNumberField</code> with the specified field.
*
* @param field the field
*/
UnpaddedNumberField(int field) {
mField = field;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 4;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(mField));
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
if (value < 10) {
buffer.append((char)(value + '0'));
} else if (value < 100) {
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
} else {
buffer.append(Integer.toString(value));
}
}
}
/**
* <p>Inner class to output an unpadded month.</p>
*/
private static class UnpaddedMonthField implements NumberRule {
static final UnpaddedMonthField INSTANCE = new UnpaddedMonthField();
/**
* Constructs an instance of <code>UnpaddedMonthField</code>.
*
*/
UnpaddedMonthField() {
super();
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 2;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(Calendar.MONTH) + 1);
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
if (value < 10) {
buffer.append((char)(value + '0'));
} else {
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
}
}
}
/**
* <p>Inner class to output a padded number.</p>
*/
private static class PaddedNumberField implements NumberRule {
private final int mField;
private final int mSize;
/**
* Constructs an instance of <code>PaddedNumberField</code>.
*
* @param field the field
* @param size size of the output field
*/
PaddedNumberField(int field, int size) {
if (size < 3) {
// Should use UnpaddedNumberField or TwoDigitNumberField.
throw new IllegalArgumentException();
}
mField = field;
mSize = size;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 4;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(mField));
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
if (value < 100) {
for (int i = mSize; --i >= 2; ) {
buffer.append('0');
}
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
} else {
int digits;
if (value < 1000) {
digits = 3;
} else {
if ((value > -1) == false) {
throw new IllegalArgumentException("Negative values should not be possible " + value);
}
digits = Integer.toString(value).length();
}
for (int i = mSize; --i >= digits; ) {
buffer.append('0');
}
buffer.append(Integer.toString(value));
}
}
}
/**
* <p>Inner class to output a two digit number.</p>
*/
private static class TwoDigitNumberField implements NumberRule {
private final int mField;
/**
* Constructs an instance of <code>TwoDigitNumberField</code> with the specified field.
*
* @param field the field
*/
TwoDigitNumberField(int field) {
mField = field;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 2;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(mField));
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
if (value < 100) {
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
} else {
buffer.append(Integer.toString(value));
}
}
}
/**
* <p>Inner class to output a two digit year.</p>
*/
private static class TwoDigitYearField implements NumberRule {
static final TwoDigitYearField INSTANCE = new TwoDigitYearField();
/**
* Constructs an instance of <code>TwoDigitYearField</code>.
*/
TwoDigitYearField() {
super();
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 2;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(Calendar.YEAR) % 100);
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
}
}
/**
* <p>Inner class to output a two digit month.</p>
*/
private static class TwoDigitMonthField implements NumberRule {
static final TwoDigitMonthField INSTANCE = new TwoDigitMonthField();
/**
* Constructs an instance of <code>TwoDigitMonthField</code>.
*/
TwoDigitMonthField() {
super();
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 2;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
appendTo(buffer, calendar.get(Calendar.MONTH) + 1);
}
/**
* {@inheritDoc}
*/
@Override
public final void appendTo(StringBuffer buffer, int value) {
buffer.append((char)(value / 10 + '0'));
buffer.append((char)(value % 10 + '0'));
}
}
/**
* <p>Inner class to output the twelve hour field.</p>
*/
private static class TwelveHourField implements NumberRule {
private final NumberRule mRule;
/**
* Constructs an instance of <code>TwelveHourField</code> with the specified
* <code>NumberRule</code>.
*
* @param rule the rule
*/
TwelveHourField(NumberRule rule) {
mRule = rule;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return mRule.estimateLength();
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
int value = calendar.get(Calendar.HOUR);
if (value == 0) {
value = calendar.getLeastMaximum(Calendar.HOUR) + 1;
}
mRule.appendTo(buffer, value);
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, int value) {
mRule.appendTo(buffer, value);
}
}
/**
* <p>Inner class to output the twenty four hour field.</p>
*/
private static class TwentyFourHourField implements NumberRule {
private final NumberRule mRule;
/**
* Constructs an instance of <code>TwentyFourHourField</code> with the specified
* <code>NumberRule</code>.
*
* @param rule the rule
*/
TwentyFourHourField(NumberRule rule) {
mRule = rule;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return mRule.estimateLength();
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
int value = calendar.get(Calendar.HOUR_OF_DAY);
if (value == 0) {
value = calendar.getMaximum(Calendar.HOUR_OF_DAY) + 1;
}
mRule.appendTo(buffer, value);
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, int value) {
mRule.appendTo(buffer, value);
}
}
/**
* <p>Inner class to output a time zone name.</p>
*/
private static class TimeZoneNameRule implements Rule {
private final TimeZone mTimeZone;
private final boolean mTimeZoneForced;
private final Locale mLocale;
private final int mStyle;
private final String mStandard;
private final String mDaylight;
/**
* Constructs an instance of <code>TimeZoneNameRule</code> with the specified properties.
*
* @param timeZone the time zone
* @param timeZoneForced if <code>true</code> the time zone is forced into standard and daylight
* @param locale the locale
* @param style the style
*/
TimeZoneNameRule(TimeZone timeZone, boolean timeZoneForced, Locale locale, int style) {
mTimeZone = timeZone;
mTimeZoneForced = timeZoneForced;
mLocale = locale;
mStyle = style;
if (timeZoneForced) {
mStandard = getTimeZoneDisplay(timeZone, false, style, locale);
mDaylight = getTimeZoneDisplay(timeZone, true, style, locale);
} else {
mStandard = null;
mDaylight = null;
}
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
if (mTimeZoneForced) {
return Math.max(mStandard.length(), mDaylight.length());
} else if (mStyle == TimeZone.SHORT) {
return 4;
} else {
return 40;
}
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
if (mTimeZoneForced) {
if (mTimeZone.useDaylightTime() && calendar.get(Calendar.DST_OFFSET) != 0) {
buffer.append(mDaylight);
} else {
buffer.append(mStandard);
}
} else {
TimeZone timeZone = calendar.getTimeZone();
if (timeZone.useDaylightTime() && calendar.get(Calendar.DST_OFFSET) != 0) {
buffer.append(getTimeZoneDisplay(timeZone, true, mStyle, mLocale));
} else {
buffer.append(getTimeZoneDisplay(timeZone, false, mStyle, mLocale));
}
}
}
}
/**
* <p>Inner class to output a time zone as a number <code>+/-HHMM</code>
* or <code>+/-HH:MM</code>.</p>
*/
private static class TimeZoneNumberRule implements Rule {
static final TimeZoneNumberRule INSTANCE_COLON = new TimeZoneNumberRule(true);
static final TimeZoneNumberRule INSTANCE_NO_COLON = new TimeZoneNumberRule(false);
final boolean mColon;
/**
* Constructs an instance of <code>TimeZoneNumberRule</code> with the specified properties.
*
* @param colon add colon between HH and MM in the output if <code>true</code>
*/
TimeZoneNumberRule(boolean colon) {
mColon = colon;
}
/**
* {@inheritDoc}
*/
@Override
public int estimateLength() {
return 5;
}
/**
* {@inheritDoc}
*/
@Override
public void appendTo(StringBuffer buffer, Calendar calendar) {
int offset = calendar.get(Calendar.ZONE_OFFSET) + calendar.get(Calendar.DST_OFFSET);
if (offset < 0) {
buffer.append('-');
offset = -offset;
} else {
buffer.append('+');
}
int hours = offset / (60 * 60 * 1000);
buffer.append((char)(hours / 10 + '0'));
buffer.append((char)(hours % 10 + '0'));
if (mColon) {
buffer.append(':');
}
int minutes = offset / (60 * 1000) - 60 * hours;
buffer.append((char)(minutes / 10 + '0'));
buffer.append((char)(minutes % 10 + '0'));
}
}
// ----------------------------------------------------------------------
/**
* <p>Inner class that acts as a compound key for time zone names.</p>
*/
private static class TimeZoneDisplayKey {
private final TimeZone mTimeZone;
private final int mStyle;
private final Locale mLocale;
/**
* Constructs an instance of <code>TimeZoneDisplayKey</code> with the specified properties.
*
* @param timeZone the time zone
* @param daylight adjust the style for daylight saving time if <code>true</code>
* @param style the timezone style
* @param locale the timezone locale
*/
TimeZoneDisplayKey(TimeZone timeZone,
boolean daylight, int style, Locale locale) {
mTimeZone = timeZone;
if (daylight) {
style |= 0x80000000;
}
mStyle = style;
mLocale = locale;
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
return mStyle * 31 + mLocale.hashCode();
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj instanceof TimeZoneDisplayKey) {
TimeZoneDisplayKey other = (TimeZoneDisplayKey)obj;
return
mTimeZone.equals(other.mTimeZone) &&
mStyle == other.mStyle &&
mLocale.equals(other.mLocale);
}
return false;
}
}
// ----------------------------------------------------------------------
/**
* <p>Helper class for creating compound objects.</p>
*
* <p>One use for this class is to create a hashtable key
* out of multiple objects.</p>
*/
private static class Pair {
private final Object mObj1;
private final Object mObj2;
/**
* Constructs an instance of <code>Pair</code> to hold the specified objects.
* @param obj1 one object in the pair
* @param obj2 second object in the pair
*/
public Pair(Object obj1, Object obj2) {
mObj1 = obj1;
mObj2 = obj2;
}
/**
* {@inheritDoc}
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Pair)) {
return false;
}
Pair key = (Pair)obj;
return
(mObj1 == null ?
key.mObj1 == null : mObj1.equals(key.mObj1)) &&
(mObj2 == null ?
key.mObj2 == null : mObj2.equals(key.mObj2));
}
/**
* {@inheritDoc}
*/
@Override
public int hashCode() {
return
(mObj1 == null ? 0 : mObj1.hashCode()) +
(mObj2 == null ? 0 : mObj2.hashCode());
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return "[" + mObj1 + ':' + mObj2 + ']';
}
}
}
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List<Map> 排序
2016-08-03 11:03 899import java.util.ArrayList; im ... -
相对路径和绝对路径的区别,java获取项目访问路径的方法
2016-07-19 13:58 616相对路径和绝对路径的区别 在HTML里只要涉及文件的地方( ... -
POI 单元格
2016-07-07 11:48 432POI 单元格合并中的CellRangeAddress 参数: ... -
Java的内存机制
2016-06-28 11:40 5421.Java的内存机制 Java 把内存划分成两种：一种是 ... -
StringBuffer和StringBuilder的区别
2016-06-28 11:36 397StringBuffer、StringBuilder和Stri ... -
平均分割list
2016-06-26 19:22 1186private static List<List< ... -
定时任务&&找出两个list的不同
2016-06-21 13:55 334/*-------------------------appl ... -
常用map总结
2016-06-21 09:39 384Map map = new HashMap(); I ... -
遍历listmap 遍历map
2016-04-27 16:23 506package excel; import java ... -
Criteria Query
2016-01-29 13:32 437Criteria Query通过面向对象化的设计，将数据查询条 ... -
List和ArrayList的区别
2016-01-28 09:38 490List和ArrayList的区别 List是一个接口，而Li ... -
StringUtils.isEmpty用法
2016-01-28 09:21 639StringUtils 方法的操作对象是 java.lang. ... -
java中重载与重写的区别
2016-01-27 13:50 484java中重载与重写的区别 ... -
loginfilter
2016-01-26 16:02 304dabdabdabdabdabdabdab -
web.xml
2015-11-13 13:53 3141、启动一个WEB项目的时 ... -
hashMap.js
2015-11-04 09:57 400function HashMap() { /** Map大 ... -
分页处理
2015-11-01 09:21 702select * from (SELECT rownum as ... -
前台传字符串导出word
2015-10-29 13:43 652package com.yunfengtech.common; ... -
SQL时间比较大小
2015-10-28 16:53 545public List<RBean> queryF ... -
js对象定义
2015-10-23 17:18 530一，基本概念 1，自定 ...
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