Java tutorial
/** * This file is part of the Squashtest platform. * Copyright (C) 2010 - 2016 Henix, henix.fr * * See the NOTICE file distributed with this work for additional * information regarding copyright ownership. * * This is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * this software 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this software. If not, see <http://www.gnu.org/licenses/>. */ package org.squashtest.tm.web.internal.controller.milestone; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.Locale; import java.util.Set; import org.apache.commons.collections.Closure; import org.apache.commons.collections.CollectionUtils; import org.squashtest.tm.domain.milestone.Milestone; import org.squashtest.tm.web.internal.i18n.InternationalizationHelper; public final class MilestoneModelUtils { protected static final String SEPARATOR = ", "; public static String timeIntervalToString(Collection<Milestone> milestones, InternationalizationHelper i18nHelper, Locale locale) { if (milestones.isEmpty()) { return "--"; } Date minDate = null; Date maxDate = null; for (Milestone m : milestones) { Date date = m.getEndDate(); if (minDate == null || date.before(minDate)) { minDate = date; } if (maxDate == null || date.after(maxDate)) { maxDate = date; } } String strMindate = i18nHelper.localizeShortDate(minDate, locale); String strMaxdate = i18nHelper.localizeShortDate(maxDate, locale); return strMindate + " - " + strMaxdate; } public static String milestoneLabelsOrderByDate(Set<Milestone> milestones) { final StringBuilder sb = new StringBuilder(); ArrayList<Milestone> liste = new ArrayList<>(milestones); Collections.sort(liste, new Comparator<Milestone>() { @Override public int compare(Milestone m1, Milestone m2) { return m1.getEndDate().after(m2.getEndDate()) ? 1 : -1; } }); CollectionUtils.forAllDo(liste, new Closure() { @Override public void execute(Object input) { Milestone m = (Milestone) input; sb.append(m.getLabel()); sb.append(SEPARATOR); } }); sb.delete(Math.max(sb.length() - SEPARATOR.length(), 0), sb.length()); return sb.toString(); } }