com.vaadin.data.converter.LocalDateToDateConverter Maven / Gradle / Ivy
/*
* Copyright (C) 2000-2024 Vaadin Ltd
*
* This program is available under Vaadin Commercial License and Service Terms.
*
* See for the full
* license.
*/
package com.vaadin.data.converter;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneId;
import java.util.Date;
import java.util.Objects;
import com.vaadin.data.Converter;
import com.vaadin.data.Result;
import com.vaadin.data.ValueContext;
import com.vaadin.ui.DateField;
import com.vaadin.ui.InlineDateField;
/**
* A converter that converts between LocalDate and
* Date. This is used when a {@link DateField} or
* {@link InlineDateField} is bound to a {@link Date} property.
*
* @author Vaadin Ltd
* @since 8.0
*/
public class LocalDateToDateConverter implements Converter {
private ZoneId zoneId;
/**
* Creates a new converter using the given time zone.
*
* @param zoneId
* the time zone id to use, not null
*/
public LocalDateToDateConverter(ZoneId zoneId) {
this.zoneId = Objects.requireNonNull(zoneId, "Zone id cannot be null");
}
/**
* Creates a new converter using the system's default time zone.
*
* @see ZoneId#systemDefault()
*/
public LocalDateToDateConverter() {
this(ZoneId.systemDefault());
}
@Override
public Result convertToModel(LocalDate localDate,
ValueContext context) {
if (localDate == null) {
return Result.ok(null);
}
return Result.ok(Date.from(localDate.atStartOfDay(zoneId).toInstant()));
}
@Override
public LocalDate convertToPresentation(Date date, ValueContext context) {
if (date == null) {
return null;
}
return Instant.ofEpochMilli(date.getTime()).atZone(zoneId)
.toLocalDate();
}
}