Java tutorial
/* * Sone - KnownSonesPage.java - Copyright 20102013 David Roden * * 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 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package net.pterodactylus.sone.web; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; import net.pterodactylus.sone.data.Sone; import net.pterodactylus.sone.web.page.FreenetRequest; import net.pterodactylus.util.collection.Pagination; import net.pterodactylus.util.number.Numbers; import net.pterodactylus.util.template.Template; import net.pterodactylus.util.template.TemplateContext; import com.google.common.base.Predicate; import com.google.common.base.Predicates; import com.google.common.collect.Collections2; import com.google.common.collect.Ordering; /** * This page shows all known Sones. * * @author <a href="mailto:bombe@pterodactylus.net">David Bombe Roden</a> */ public class KnownSonesPage extends SoneTemplatePage { /** * Creates a known Sones? page. * * @param template * The template to render * @param webInterface * The Sone web interface */ public KnownSonesPage(Template template, WebInterface webInterface) { super("knownSones.html", template, "Page.KnownSones.Title", webInterface, false); } // // TEMPLATEPAGE METHODS // /** * {@inheritDoc} */ @Override protected void processTemplate(FreenetRequest request, TemplateContext templateContext) throws RedirectException { super.processTemplate(request, templateContext); String sortField = request.getHttpRequest().getParam("sort"); String sortOrder = request.getHttpRequest().getParam("order"); String filter = request.getHttpRequest().getParam("filter"); templateContext.set("sort", (sortField != null) ? sortField : "name"); templateContext.set("order", (sortOrder != null) ? sortOrder : "asc"); templateContext.set("filter", filter); final Sone currentSone = getCurrentSone(request.getToadletContext(), false); Collection<Sone> knownSones = Collections2.filter(webInterface.getCore().getSones(), Sone.EMPTY_SONE_FILTER); if ((currentSone != null) && "followed".equals(filter)) { knownSones = Collections2.filter(knownSones, new Predicate<Sone>() { @Override public boolean apply(Sone sone) { return currentSone.hasFriend(sone.getId()); } }); } else if ((currentSone != null) && "not-followed".equals(filter)) { knownSones = Collections2.filter(knownSones, new Predicate<Sone>() { @Override public boolean apply(Sone sone) { return !currentSone.hasFriend(sone.getId()); } }); } else if ("new".equals(filter)) { knownSones = Collections2.filter(knownSones, new Predicate<Sone>() { /** * {@inheritDoc} */ @Override public boolean apply(Sone sone) { return !sone.isKnown(); } }); } else if ("not-new".equals(filter)) { knownSones = Collections2.filter(knownSones, new Predicate<Sone>() { /** * {@inheritDoc} */ @Override public boolean apply(Sone sone) { return sone.isKnown(); } }); } else if ("own".equals(filter)) { knownSones = Collections2.filter(knownSones, Sone.LOCAL_SONE_FILTER); } else if ("not-own".equals(filter)) { knownSones = Collections2.filter(knownSones, Predicates.not(Sone.LOCAL_SONE_FILTER)); } List<Sone> sortedSones = new ArrayList<Sone>(knownSones); if ("activity".equals(sortField)) { if ("asc".equals(sortOrder)) { Collections.sort(sortedSones, Ordering.from(Sone.LAST_ACTIVITY_COMPARATOR).reverse()); } else { Collections.sort(sortedSones, Sone.LAST_ACTIVITY_COMPARATOR); } } else if ("posts".equals(sortField)) { if ("asc".equals(sortOrder)) { Collections.sort(sortedSones, Ordering.from(Sone.POST_COUNT_COMPARATOR).reverse()); } else { Collections.sort(sortedSones, Sone.POST_COUNT_COMPARATOR); } } else if ("images".equals(sortField)) { if ("asc".equals(sortOrder)) { Collections.sort(sortedSones, Ordering.from(Sone.IMAGE_COUNT_COMPARATOR).reverse()); } else { Collections.sort(sortedSones, Sone.IMAGE_COUNT_COMPARATOR); } } else { if ("desc".equals(sortOrder)) { Collections.sort(sortedSones, Ordering.from(Sone.NICE_NAME_COMPARATOR).reverse()); } else { Collections.sort(sortedSones, Sone.NICE_NAME_COMPARATOR); } } Pagination<Sone> sonePagination = new Pagination<Sone>(sortedSones, 25) .setPage(Numbers.safeParseInteger(request.getHttpRequest().getParam("page"), 0)); templateContext.set("pagination", sonePagination); templateContext.set("knownSones", sonePagination.getItems()); } }