se.wfh.libs.common.gui.widgets.datepicker.DateConverterHelper Maven / Gradle / Ivy

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package se.wfh.libs.common.gui.widgets.datepicker;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.temporal.Temporal;
import java.util.Date;

public class DateConverterHelper {
	public static Date toDate(LocalDate value) {
		if (value == null) {
			return null;
		}

		return Date.from(value.atStartOfDay(ZoneId.systemDefault()).toInstant());
	}

	public static Date toDate(LocalDateTime value) {
		if (value == null) {
			return null;
		}

		return Date.from(value.atZone(ZoneId.systemDefault()).toInstant());
	}

	public static Date toDate(LocalTime value) {
		if (value == null) {
			return null;
		}

		return Date.from(value.atDate(LocalDate.ofEpochDay(1))
				.atZone(ZoneId.systemDefault()).toInstant());
	}

	public static Date toDate(Temporal value) {
		if (value == null) {
			return null;
		}

		if (LocalDate.class.isAssignableFrom(value.getClass())) {
			return toDate((LocalDate) value);
		} else if (LocalTime.class.isAssignableFrom(value.getClass())) {
			return toDate((LocalTime) value);
		} else if (LocalDateTime.class.isAssignableFrom(value.getClass())) {
			return toDate((LocalDateTime) value);
		}

		return null;
	}

	public static LocalDate toLocalDate(Date value) {
		if (value == null) {
			return null;
		}

		return value.toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
	}

	public static LocalDateTime toLocalDateTime(Date value) {
		if (value == null) {
			return null;
		}

		return value.toInstant().atZone(ZoneId.systemDefault()).toLocalDateTime();
	}

	public static LocalTime toLocalTime(Date value) {
		if (value == null) {
			return null;
		}

		return value.toInstant().atZone(ZoneId.systemDefault()).toLocalTime();
	}
}