goja.core.kits.lang.DateKit Maven / Gradle / Ivy
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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2013-2014 sagyf Yang. The Four Group.
*/
package goja.core.kits.lang;
import goja.core.date.DateFormatter;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;
import java.util.Date;
import java.util.Locale;
/**
*
* .
*
*
* @author sagyf yang
* @version 1.0 2014-11-04 16:34
* @since JDK 1.6
*/
public class DateKit {
/**
* From here: http://www.ietf.org/rfc/rfc1123.txt
*/
private static final DateTimeFormatter RFC1123_DATE_FORMAT = DateTimeFormat
.forPattern("EEE, dd MMM yyyy HH:mm:ss 'GMT'")
.withLocale(Locale.US)
.withZone(DateTimeZone.UTC);
private static final DateTimeFormatter YMDHMS_DASH_DATE_FORMAT = DateTimeFormat
.forPattern(DateFormatter.YYYY_MM_DD_HH_MM_SS)
.withLocale(Locale.US)
.withZone(DateTimeZone.UTC);
private static final DateTimeFormatter YMD_DASH_DATE_FORMAT = DateTimeFormat
.forPattern(DateFormatter.YYYY_MM_DD)
.withLocale(Locale.US)
.withZone(DateTimeZone.UTC);
private static final DateTimeFormatter YMDHM_DASH_DATE_FORMAT = DateTimeFormat
.forPattern(DateFormatter.YYYY_MM_DD_HH_MM)
.withLocale(Locale.US)
.withZone(DateTimeZone.UTC);
private DateKit() {
}
/**
* Can be used to format a date into http header compatible
* strings.
*
* It can be used to generate something like:
* Date: 2014-11-12 10:10:10
* Expires: 2014-11-12 10:10:10
*
* @param date The date to format
* @return a http header compatible string like "Thu, 01 Jan 1970 00:00:00 GMT"
*/
public static String formatDashYMDHMS(Date date) {
return YMDHMS_DASH_DATE_FORMAT.print(new DateTime(date));
}
/**
* Can be used to parse http times. For instance something like a http header
* Date: 2014-11-12 10:10:10
*
* INFO: consider the JodaTime based DateUtil.parseHttpDateFormatToDateTime(...) version
*
* @param httpDateFormat in http format: Date: Tue, 26 Mar 2013 13:47:13 GMT
* @return A nice "Date" object containing that http timestamp.
* @throws IllegalArgumentException If something goes wrong.
*/
public static Date parseDashYMDHMS(String httpDateFormat) throws IllegalArgumentException {
return parseDashYMDHMSDateTime(httpDateFormat).toDate();
}
/**
* Can be used to parse http times. For instance something like a http header
* Date: 2014-11-12 10:10:10
*
* @param httpDateFormat in http format: Date: Tue, 26 Mar 2013 13:47:13 GMT
* @return A nice "DateTime" (JodaTime) object containing that http timestamp.
* @throws IllegalArgumentException If something goes wrong.
*/
public static DateTime parseDashYMDHMSDateTime(String httpDateFormat) throws IllegalArgumentException {
return YMDHMS_DASH_DATE_FORMAT.parseDateTime(httpDateFormat);
}
/**
* @param date
* @return
*/
public static String formatDashYMD(Date date) {
return YMD_DASH_DATE_FORMAT.print(new DateTime(date));
}
public static Date parseDashYMD(String httpDateFormat) throws IllegalArgumentException {
return parseDashYMDDateTime(httpDateFormat).toDate();
}
public static DateTime parseDashYMDDateTime(String httpDateFormat) throws IllegalArgumentException {
return YMD_DASH_DATE_FORMAT.parseDateTime(httpDateFormat);
}
/**
* @param date
* @return
*/
public static String formatDashYMDHM(Date date) {
return YMDHM_DASH_DATE_FORMAT.print(new DateTime(date));
}
public static Date parseDashYMDHM(String httpDateFormat) throws IllegalArgumentException {
return parseDashYMDHMDateTime(httpDateFormat).toDate();
}
public static DateTime parseDashYMDHMDateTime(String httpDateFormat) throws IllegalArgumentException {
return YMDHM_DASH_DATE_FORMAT.parseDateTime(httpDateFormat);
}
/**
* Can be used to format a date into http header compatible
* strings.
*
* It can be used to generate something like:
* Date: Wed, 05 Sep 2012 09:16:19 GMT
* Expires: Thu, 01 Jan 1970 00:00:00 GMT
*
* @param date The date to format
* @return a http header compatible string like "Thu, 01 Jan 1970 00:00:00 GMT"
*/
public static String formatForHttpHeader(Date date) {
return RFC1123_DATE_FORMAT.print(new DateTime(date));
}
/**
* Can be used to format a unix timestamp into
* http header compatible strings.
*
* It can be used to generate something like:
* Date: Wed, 05 Sep 2012 09:16:19 GMT
* Expires: Thu, 01 Jan 1970 00:00:00 GMT
*
* @param unixTime The long (unixtime) to format
* @return a http header compatible string like "Thu, 01 Jan 1970 00:00:00 GMT"
*/
public static String formatForHttpHeader(Long unixTime) {
return RFC1123_DATE_FORMAT.print(new DateTime(unixTime));
}
/**
* Can be used to parse http times. For instance something like a http header
* Date: Tue, 26 Mar 2013 13:47:13 GMT
*
* INFO: consider the JodaTime based DateUtil.parseHttpDateFormatToDateTime(...) version
*
* @param httpDateFormat in http format: Date: Tue, 26 Mar 2013 13:47:13 GMT
* @return A nice "Date" object containing that http timestamp.
* @throws IllegalArgumentException If something goes wrong.
*/
public static Date parseHttpDateFormat(String httpDateFormat) throws IllegalArgumentException {
return parseHttpDateFormatToDateTime(httpDateFormat).toDate();
}
/**
* Can be used to parse http times. For instance something like a http header
* Date: Tue, 26 Mar 2013 13:47:13 GMT
*
* @param httpDateFormat in http format: Date: Tue, 26 Mar 2013 13:47:13 GMT
* @return A nice "DateTime" (JodaTime) object containing that http timestamp.
* @throws IllegalArgumentException If something goes wrong.
*/
public static DateTime parseHttpDateFormatToDateTime(String httpDateFormat) throws IllegalArgumentException {
return RFC1123_DATE_FORMAT.parseDateTime(httpDateFormat);
}
/**
* Get days after UnixTime
*
* @param day days
* @return unixtime
*/
public static Long getUnixTimeAfterDay(int day) {
return day * 24 * 60 * 60L + System.currentTimeMillis() / 1000;
}
/**
* Get days before UnixTime
*
* @param day days
* @return unixtime
*/
public static Long getUnixTimeBeforeDay(int day) {
return System.currentTimeMillis() / 1000 - day * 24 * 60 * 60L;
}
/**
* Get UnixTime current time
*
* @return UnixTime
*/
public static Long getCurrentUnixTime() {
return System.currentTimeMillis() / 1000;
}
}
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