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/*
* Copyright 2000-2016 Vaadin Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vaadin.ui;
import java.time.Instant;
import java.time.LocalDate;
import java.time.ZoneOffset;
import java.util.Date;
import java.util.Map;
import com.vaadin.data.validator.DateRangeValidator;
import com.vaadin.data.validator.RangeValidator;
import com.vaadin.shared.ui.datefield.AbstractTextualDateFieldState;
import com.vaadin.shared.ui.datefield.DateResolution;
/**
* Abstract DateField class for {@link LocalDate} type.
*
* @author Vaadin Ltd
*
* @since 8.0
*
*/
public abstract class AbstractLocalDateField
extends AbstractDateField<LocalDate, DateResolution> {
/**
* Constructs an empty <code>AbstractLocalDateField</code> with no caption.
*/
public AbstractLocalDateField() {
super(DateResolution.DAY);
}
/**
* Constructs an empty <code>AbstractLocalDateField</code> with caption.
*
* @param caption
* the caption of the datefield.
*/
public AbstractLocalDateField(String caption) {
super(caption, DateResolution.DAY);
}
/**
* Constructs a new <code>AbstractLocalDateField</code> with the given
* caption and initial text contents.
*
* @param caption
* the caption <code>String</code> for the editor.
* @param value
* the LocalDate value.
*/
public AbstractLocalDateField(String caption, LocalDate value) {
super(caption, value, DateResolution.DAY);
}
@Override
protected int getDatePart(LocalDate date, DateResolution resolution) {
LocalDate value = date;
if (value == null) {
value = LocalDate.of(1, 1, 1);
}
switch (resolution) {
case DAY:
return value.getDayOfMonth();
case MONTH:
return value.getMonthValue();
case YEAR:
return value.getYear();
default:
assert false : "Unexpected resolution argument " + resolution;
return -1;
}
}
@Override
protected LocalDate buildDate(
Map<DateResolution, Integer> resolutionValues) {
return LocalDate.of(resolutionValues.get(DateResolution.YEAR),
resolutionValues.getOrDefault(DateResolution.MONTH, 1),
resolutionValues.getOrDefault(DateResolution.DAY, 1));
}
@Override
protected RangeValidator<LocalDate> getRangeValidator() {
return new DateRangeValidator(getDateOutOfRangeMessage(),
getDate(getRangeStart(), getResolution()),
getDate(getRangeEnd(), getResolution()));
}
@Override
protected AbstractTextualDateFieldState getState() {
return (AbstractTextualDateFieldState) super.getState();
}
@Override
protected AbstractTextualDateFieldState getState(boolean markAsDirty) {
return (AbstractTextualDateFieldState) super.getState(markAsDirty);
}
@Override
protected LocalDate convertFromDate(Date date) {
if (date == null) {
return null;
}
return Instant.ofEpochMilli(date.getTime()).atZone(ZoneOffset.UTC)
.toLocalDate();
}
@Override
protected Date convertToDate(LocalDate date) {
if (date == null) {
return null;
}
return Date.from(date.atStartOfDay(ZoneOffset.UTC).toInstant());
}
private LocalDate getDate(LocalDate date, DateResolution forResolution) {
if (date == null) {
return null;
}
if (forResolution == DateResolution.YEAR) {
return date.withDayOfYear(1);
} else if (forResolution == DateResolution.MONTH) {
return date.withDayOfMonth(1);
} else {
return date;
}
}
}
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