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/*
* Copyright 2000-2018 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.LocalDateTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAccessor;
import java.util.Date;
import java.util.Locale;
import java.util.Map;
import com.vaadin.data.validator.DateTimeRangeValidator;
import com.vaadin.data.validator.RangeValidator;
import com.vaadin.shared.ui.datefield.AbstractTextualDateFieldState;
import com.vaadin.shared.ui.datefield.DateTimeResolution;
/**
* Abstract DateField class for {@link LocalDateTime} type.
*
* @author Vaadin Ltd
*
* @since 8.0
*/
public abstract class AbstractLocalDateTimeField
extends AbstractDateField<LocalDateTime, DateTimeResolution> {
/**
* Constructs an empty <code>AbstractLocalDateTimeField</code> with no
* caption.
*/
public AbstractLocalDateTimeField() {
super(DateTimeResolution.MINUTE);
}
/**
* Constructs an empty <code>AbstractLocalDateTimeField</code> with caption.
*
* @param caption
* the caption of the datefield.
*/
public AbstractLocalDateTimeField(String caption) {
super(caption, DateTimeResolution.MINUTE);
}
/**
* Constructs a new <code>AbstractLocalDateTimeField</code> with the given
* caption and initial text contents.
*
* @param caption
* the caption <code>String</code> for the editor.
* @param value
* the LocalDateTime value.
*/
public AbstractLocalDateTimeField(String caption, LocalDateTime value) {
super(caption, value, DateTimeResolution.MINUTE);
}
@Override
protected AbstractTextualDateFieldState getState() {
return (AbstractTextualDateFieldState) super.getState();
}
@Override
protected AbstractTextualDateFieldState getState(boolean markAsDirty) {
return (AbstractTextualDateFieldState) super.getState(markAsDirty);
}
@Override
protected int getDatePart(LocalDateTime date,
DateTimeResolution resolution) {
LocalDateTime value = date;
if (value == null) {
value = LocalDateTime.of(1, 1, 1, 0, 0);
}
switch (resolution) {
case DAY:
return value.getDayOfMonth();
case MONTH:
return value.getMonthValue();
case YEAR:
return value.getYear();
case HOUR:
return value.getHour();
case MINUTE:
return value.getMinute();
case SECOND:
return value.getSecond();
default:
assert false : "Unexpected resolution argument " + resolution;
return -1;
}
}
@Override
protected RangeValidator<LocalDateTime> getRangeValidator() {
return new DateTimeRangeValidator(getDateOutOfRangeMessage(),
adjustToResolution(getRangeStart(), getResolution()),
adjustToResolution(getRangeEnd(), getResolution()));
}
@Override
protected LocalDateTime buildDate(
Map<DateTimeResolution, Integer> resolutionValues) {
return LocalDateTime.of(resolutionValues.get(DateTimeResolution.YEAR),
resolutionValues.getOrDefault(DateTimeResolution.MONTH, 1),
resolutionValues.getOrDefault(DateTimeResolution.DAY, 1),
resolutionValues.getOrDefault(DateTimeResolution.HOUR, 0),
resolutionValues.getOrDefault(DateTimeResolution.MINUTE, 0),
resolutionValues.getOrDefault(DateTimeResolution.SECOND, 0));
}
@Override
protected LocalDateTime convertFromDate(Date date) {
if (date == null) {
return null;
}
return Instant.ofEpochMilli(date.getTime()).atZone(ZoneOffset.UTC)
.toLocalDateTime();
}
@Override
protected Date convertToDate(LocalDateTime date) {
if (date == null) {
return null;
}
return Date.from(date.toInstant(ZoneOffset.UTC));
}
@Override
protected LocalDateTime adjustToResolution(LocalDateTime date,
DateTimeResolution forResolution) {
if (date == null) {
return null;
}
switch (forResolution) {
case YEAR:
return date.withDayOfYear(1).toLocalDate().atStartOfDay();
case MONTH:
return date.withDayOfMonth(1).toLocalDate().atStartOfDay();
case DAY:
return date.toLocalDate().atStartOfDay();
case HOUR:
return date.truncatedTo(ChronoUnit.HOURS);
case MINUTE:
return date.truncatedTo(ChronoUnit.MINUTES);
case SECOND:
return date.truncatedTo(ChronoUnit.SECONDS);
default:
assert false : "Unexpected resolution argument " + forResolution;
return null;
}
}
@Override
protected String formatDate(LocalDateTime value) {
if (value == null) {
return "";
}
DateTimeFormatter dateTimeFormatter = DateTimeFormatter
.ofLocalizedDateTime(FormatStyle.SHORT);
Locale locale = getLocale();
if (locale != null) {
dateTimeFormatter = dateTimeFormatter.withLocale(locale);
}
return value.format(dateTimeFormatter);
}
@Override
protected LocalDateTime toType(TemporalAccessor temporalAccessor) {
return temporalAccessor == null ? null
: LocalDateTime.from(temporalAccessor);
}
}
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