/* * Copyright (C) 2008-2020, Juick * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.juick.util; import org.apache.commons.lang3.StringUtils; import java.time.Instant; import java.time.ZoneOffset; import java.time.ZonedDateTime; import java.time.format.DateTimeFormatter; import java.util.Locale; /** * Created by aalexeev on 12/7/16. */ public class DateFormatter { private final DateTimeFormatter formatter; public DateFormatter(String pattern) { formatter = DateTimeFormatter.ofPattern(pattern, Locale.ENGLISH); } public String format(final Instant ts) { if (ts == null) return null; ZonedDateTime ldt = ZonedDateTime.ofInstant(ts, ZoneOffset.UTC); return ldt.format(formatter); } public Instant parse(final String v) { if (StringUtils.isBlank(v)) return null; ZonedDateTime ldt = ZonedDateTime.parse(v, formatter); return ldt.toInstant(); } }