org.ioc.commons.impl.android.i18n.AndroidDateTimeFormatter Maven / Gradle / Ivy

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package org.ioc.commons.impl.android.i18n;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

import org.ioc.commons.i18n.DateTimeFormatter;
import org.ioc.commons.utils.Format;

public class AndroidDateTimeFormatter implements DateTimeFormatter {

	@Override
	public String format(SystemDefaultFormat format, Date date) {
		switch (format) {
		case Date:
			return DateFormat.getDateInstance().format(date);
		case DateTime:
			return DateFormat.getDateTimeInstance().format(date);
		case Time:
			return DateFormat.getTimeInstance().format(date);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	@Override
	public Date parse(SystemDefaultFormat format, String stringDate) {
		try {
			switch (format) {
			case Date:
				return DateFormat.getDateInstance().parse(stringDate);
			case DateTime:
				return DateFormat.getDateTimeInstance().parse(stringDate);
			case Time:
				return DateFormat.getTimeInstance().parse(stringDate);
			}
		} catch (ParseException e) {
			throw new RuntimeException(e);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	@Override
	public String format(SystemDefaultFormat format, Date date, int timeZoneOffsetInMinutes) {
		TimeZone timeZone = TimeZone.getTimeZone("GMT+" + toHour(timeZoneOffsetInMinutes));
		switch (format) {
		case Date:
			DateFormat dateInstance = DateFormat.getDateInstance();
			dateInstance.setTimeZone(timeZone);
			return dateInstance.format(date);
		case DateTime:
			DateFormat dateTimeInstance = DateFormat.getDateTimeInstance();
			dateTimeInstance.setTimeZone(timeZone);
			return dateTimeInstance.format(date);
		case Time:
			DateFormat timeInstance = DateFormat.getTimeInstance();
			timeInstance.setTimeZone(timeZone);
			return timeInstance.format(date);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	@Override
	public String format(PredefinedFormat format, Date date) {
		switch (format) {
		case DAY:
			return new SimpleDateFormat("d").format(date);
		case HOUR24_MINUTE:
			return new SimpleDateFormat("HH:mm").format(date);
		case HOUR24_MINUTE_SECOND:
			return new SimpleDateFormat("HH:mm:ss").format(date);
		case HOUR_MINUTE:
			return new SimpleDateFormat("hh:mm").format(date);
		case HOUR_MINUTE_SECOND:
			return new SimpleDateFormat("hh:mm:ss").format(date);
		case MINUTE_SECOND:
			return new SimpleDateFormat("mm:ss").format(date);
		case MONTH:
			return new SimpleDateFormat("MM").format(date);
		case MONTH_DAY:
			return new SimpleDateFormat("MM-dd").format(date);
		case MONTH_NUM_DAY:
			return new SimpleDateFormat("MM-D").format(date);
		case MONTH_WEEKDAY_DAY:
			return new SimpleDateFormat("MM-u").format(date);
		case YEAR:
			return new SimpleDateFormat("yyyy").format(date);
		case YEAR_MONTH:
			return new SimpleDateFormat("yyyy-MM").format(date);
		case YEAR_MONTH_DAY:
			return new SimpleDateFormat("yyyy-MM-dd").format(date);
		case YEAR_MONTH_NUM:
			return new SimpleDateFormat("yyyy-MM-D").format(date);
		case YEAR_MONTH_NUM_DAY:
			return new SimpleDateFormat("yyyy-MM-D").format(date);
		case YEAR_MONTH_WEEKDAY_DAY:
			return new SimpleDateFormat("yyyy-MM-u").format(date);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	@Override
	public Date parse(PredefinedFormat format, String stringDate) {
		try {
			switch (format) {
			case DAY:
				return new SimpleDateFormat("d").parse(stringDate);
			case HOUR24_MINUTE:
				return new SimpleDateFormat("HH:mm").parse(stringDate);
			case HOUR24_MINUTE_SECOND:
				return new SimpleDateFormat("HH:mm:ss").parse(stringDate);
			case HOUR_MINUTE:
				return new SimpleDateFormat("hh:mm").parse(stringDate);
			case HOUR_MINUTE_SECOND:
				return new SimpleDateFormat("hh:mm:ss").parse(stringDate);
			case MINUTE_SECOND:
				return new SimpleDateFormat("mm:ss").parse(stringDate);
			case MONTH:
				return new SimpleDateFormat("MM").parse(stringDate);
			case MONTH_DAY:
				return new SimpleDateFormat("MM-dd").parse(stringDate);
			case MONTH_NUM_DAY:
				return new SimpleDateFormat("MM-D").parse(stringDate);
			case MONTH_WEEKDAY_DAY:
				return new SimpleDateFormat("MM-u").parse(stringDate);
			case YEAR:
				return new SimpleDateFormat("yyyy").parse(stringDate);
			case YEAR_MONTH:
				return new SimpleDateFormat("yyyy-MM").parse(stringDate);
			case YEAR_MONTH_DAY:
				return new SimpleDateFormat("yyyy-MM-dd").parse(stringDate);
			case YEAR_MONTH_NUM:
				return new SimpleDateFormat("yyyy-MM-D").parse(stringDate);
			case YEAR_MONTH_NUM_DAY:
				return new SimpleDateFormat("yyyy-MM-D").parse(stringDate);
			case YEAR_MONTH_WEEKDAY_DAY:
				return new SimpleDateFormat("yyyy-MM-u").parse(stringDate);
			}
		} catch (ParseException e) {
			throw new RuntimeException(e);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	@Override
	public String format(PredefinedFormat format, Date date, int timeZoneOffsetInMinutes) {
		SimpleDateFormat yearMonthNum = new SimpleDateFormat("yyyy-MM-D");
		TimeZone timezone = TimeZone.getTimeZone("GMT+" + toHour(timeZoneOffsetInMinutes));
		switch (format) {
		case DAY:
			SimpleDateFormat day = new SimpleDateFormat("d");
			day.setTimeZone(timezone);
			return day.format(date);
		case HOUR24_MINUTE:
			SimpleDateFormat hour24minute = new SimpleDateFormat("HH:mm");
			hour24minute.setTimeZone(timezone);
			return hour24minute.format(date);
		case HOUR24_MINUTE_SECOND:
			SimpleDateFormat hour24minuteSecond = new SimpleDateFormat("HH:mm:ss");
			hour24minuteSecond.setTimeZone(timezone);
			return hour24minuteSecond.format(date);
		case HOUR_MINUTE:
			SimpleDateFormat hourMinute = new SimpleDateFormat("hh:mm");
			hourMinute.setTimeZone(timezone);
			return hourMinute.format(date);
		case HOUR_MINUTE_SECOND:
			SimpleDateFormat hourMinuteSecond = new SimpleDateFormat("hh:mm:ss");
			hourMinuteSecond.setTimeZone(timezone);
			return hourMinuteSecond.format(date);
		case MINUTE_SECOND:
			SimpleDateFormat minuteSecond = new SimpleDateFormat("mm:ss");
			minuteSecond.setTimeZone(timezone);
			return minuteSecond.format(date);
		case MONTH:
			SimpleDateFormat month = new SimpleDateFormat("MM");
			month.setTimeZone(timezone);
			return month.format(date);
		case MONTH_DAY:
			SimpleDateFormat monthDay = new SimpleDateFormat("MM-dd");
			monthDay.setTimeZone(timezone);
			return monthDay.format(date);
		case MONTH_NUM_DAY:
			SimpleDateFormat monthNumDay = new SimpleDateFormat("MM-D");
			monthNumDay.setTimeZone(timezone);
			return monthNumDay.format(date);
		case MONTH_WEEKDAY_DAY:
			SimpleDateFormat monthWeekday = new SimpleDateFormat("MM-u");
			monthWeekday.setTimeZone(timezone);
			return monthWeekday.format(date);
		case YEAR:
			SimpleDateFormat year = new SimpleDateFormat("yyyy");
			year.setTimeZone(timezone);
			return year.format(date);
		case YEAR_MONTH:
			SimpleDateFormat yearMonth = new SimpleDateFormat("yyyy-MM");
			yearMonth.setTimeZone(timezone);
			return yearMonth.format(date);
		case YEAR_MONTH_DAY:
			SimpleDateFormat yearMonthDay = new SimpleDateFormat("yyyy-MM-dd");
			yearMonthDay.setTimeZone(timezone);
			return yearMonthDay.format(date);
		case YEAR_MONTH_NUM:
			yearMonthNum.setTimeZone(timezone);
			return yearMonthNum.format(date);
		case YEAR_MONTH_NUM_DAY:
			yearMonthNum.setTimeZone(timezone);
			return yearMonthNum.format(date);
		case YEAR_MONTH_WEEKDAY_DAY:
			SimpleDateFormat yearMonthWeekday = new SimpleDateFormat("yyyy-MM-u");
			return yearMonthWeekday.format(date);
		}

		throw new IllegalArgumentException(Format.substitute("The {0} {1} is not recognized.",
				SystemDefaultFormat.class.getName(), format));
	}

	private String toHour(int t) {
		int hours = t / 60; // since both are ints, you get an int
		int minutes = t % 60;
		return String.format("%d:%02d", hours, minutes);
	}
}