Java tutorial
/* * Copyright (c) 2016. Sten Martinez * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package net.longfalcon.view; import org.joda.time.Period; import org.joda.time.format.PeriodFormat; import org.joda.time.format.PeriodFormatter; import java.util.Date; /** * Created by longfalcon on 12/20/15. */ public class DateView { private static PeriodFormatter _periodFormatter; static { _periodFormatter = PeriodFormat.wordBased(); } public String timeAgo(Date date) { if (date != null) { Date now = new Date(); Period period = new Period(date.getTime(), now.getTime()); period = roundPeriod(period); return _periodFormatter.print(period); } else { return "never"; } } public Period roundPeriod(Period period) { int fieldCount = 0; int years = period.getYears(); int months = period.getMonths(); int weeks = period.getWeeks(); int days = period.getDays(); int hours = period.getHours(); int minutes = period.getMinutes(); int seconds = period.getSeconds(); if (years > 0) { fieldCount++; } if (months > 0) { fieldCount++; } if (fieldCount > 1) { return new Period(years, months, 0, 0, 0, 0, 0, 0); } if (weeks > 0) { fieldCount++; } if (fieldCount > 1) { return new Period(0, months, weeks, 0, 0, 0, 0, 0); } if (days > 0) { fieldCount++; } if (fieldCount > 1) { return new Period(0, 0, weeks, days, 0, 0, 0, 0); } if (hours > 0) { fieldCount++; } if (fieldCount > 1) { return new Period(0, 0, 0, days, hours, 0, 0, 0); } if (minutes > 0) { fieldCount++; } if (fieldCount > 1) { return new Period(0, 0, 0, 0, hours, minutes, 0, 0); } return new Period(0, 0, 0, 0, 0, minutes, seconds, 0); } }