src/web/java/org/apache/openmeetings/web/util/CalendarHelper.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.openmeetings.web.util;

import static org.apache.openmeetings.web.app.WebSession.getUserTimeZone;

import java.util.Date;

import org.threeten.bp.Instant;
import org.threeten.bp.LocalDate;
import org.threeten.bp.LocalDateTime;
import org.threeten.bp.ZoneId;

public class CalendarHelper {
	public static ZoneId getZoneId() {
		return ZoneId.of(getUserTimeZone().getID());
	}
	
	public static Date getDate(LocalDate d) {
		return getDate(d.atStartOfDay());
	}

	public static Date getDate(LocalDateTime d) {
		return new Date(d.atZone(getZoneId()).toInstant().toEpochMilli());
	}

	public static LocalDateTime getDate(Date d) {
		return Instant.ofEpochMilli(d.getTime()).atZone(ZoneId.of(getUserTimeZone().getID())).toLocalDateTime();
	}
}