AndroidAPS/app/src/main/java/info/nightscout/utils/DateUtil.java
2017-01-07 23:26:28 +01:00

114 lines
3.9 KiB
Java

package info.nightscout.utils;
import android.text.format.DateUtils;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import info.nightscout.androidaps.MainApp;
/**
* The Class DateUtil. A simple wrapper around SimpleDateFormat to ease the handling of iso date string <-> date obj
* with TZ
*/
public class DateUtil {
/**
* The date format in iso.
*/
public static String FORMAT_DATE_ISO = "yyyy-MM-dd'T'HH:mm:ss'Z'";
/**
* Takes in an ISO date string of the following format:
* yyyy-mm-ddThh:mm:ss.ms+HoMo
*
* @param isoDateString the iso date string
* @return the date
* @throws Exception the exception
*/
public static Date fromISODateString(String isoDateString)
throws Exception {
SimpleDateFormat f = new SimpleDateFormat(FORMAT_DATE_ISO);
f.setTimeZone(TimeZone.getTimeZone("UTC"));
Date date = f.parse(isoDateString);
return date;
}
/**
* Render date
*
* @param date the date obj
* @param format - if not specified, will use FORMAT_DATE_ISO
* @param tz - tz to set to, if not specified uses local timezone
* @return the iso-formatted date string
*/
public static String toISOString(Date date, String format, TimeZone tz) {
if (format == null) format = FORMAT_DATE_ISO;
if (tz == null) tz = TimeZone.getDefault();
DateFormat f = new SimpleDateFormat(format);
f.setTimeZone(tz);
return f.format(date);
}
public static String toISOString(Date date) {
return toISOString(date, FORMAT_DATE_ISO, TimeZone.getTimeZone("UTC"));
}
public static String toISOString(long date) {
return toISOString(new Date(date), FORMAT_DATE_ISO, TimeZone.getTimeZone("UTC"));
}
public static Date toDate(Integer seconds) {
Calendar calendar = new GregorianCalendar();
calendar.set(Calendar.HOUR_OF_DAY, seconds / 60 / 60);
String a = calendar.getTime().toString();
calendar.set(Calendar.MINUTE, (seconds / 60) % 60);
String b = calendar.getTime().toString();
calendar.set(Calendar.SECOND, 0);
String c = calendar.getTime().toString();
return calendar.getTime();
}
public static int toSeconds(String hh_colon_mm) {
Pattern p = Pattern.compile("(\\d+):(\\d+)");
Matcher m = p.matcher(hh_colon_mm);
int retval = 0;
if (m.find()) {
retval = SafeParse.stringToInt(m.group(1)) * 60 * 60 + SafeParse.stringToInt(m.group(2)) * 60;
}
return retval;
}
public static String dateString(Date date) {
//return DateUtils.formatDateTime(MainApp.instance(), date.getTime(), DateUtils.FORMAT_SHOW_DATE); this provide month name not number
DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
return df.format(date);
}
public static String dateString(long mills) {
//return DateUtils.formatDateTime(MainApp.instance(), mills, DateUtils.FORMAT_SHOW_DATE); this provide month name not number
DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT);
return df.format(mills);
}
public static String timeString(Date date) {
return DateUtils.formatDateTime(MainApp.instance(), date.getTime(), DateUtils.FORMAT_SHOW_TIME);
}
public static String timeString(long mills) {
return DateUtils.formatDateTime(MainApp.instance(), mills, DateUtils.FORMAT_SHOW_TIME);
}
public static String dateAndTimeString(Date date) {
return dateString(date) + " " + timeString(date);
}
public static String dateAndTimeString(long mills) {
return dateString(mills) + " " + timeString(mills);
}
}