/* * This file is part of the PDF Split And Merge source code * Created on 24 ott 2015 * Copyright 2017 by Sober Lemur S.a.s. di Vacondio Andrea ([email protected]). * * 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 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 org.pdfsam.news; import static org.pdfsam.support.io.NetUtils.urlToStream; import static org.sejda.commons.util.RequireUtils.requireNotNullArg; import java.io.IOException; import java.net.URL; import java.util.Collections; import java.util.List; import java.util.prefs.BackingStoreException; import java.util.prefs.Preferences; import javax.inject.Inject; import org.pdfsam.ConfigurableProperty; import org.pdfsam.Pdfsam; import org.pdfsam.i18n.DefaultI18nContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.fasterxml.jackson.jr.ob.JSON; import com.fasterxml.jackson.jr.ob.JSON.Feature; /** * Default JSON implementation of a news service * * @author Andrea Vacondio */ public class DefaultNewsService implements NewsService { private static final Logger LOG = LoggerFactory.getLogger(DefaultNewsService.class); private static final String NEWS_PATH = "/org/pdfsam/user/news"; private static final String LATEST_NEWS_ID = "latest.news.id"; private static final String LATEST_IMPORTANT_NEWS_ID = "latest.important.news.id"; private Pdfsam pdfsam; @Inject DefaultNewsService(Pdfsam pdfsam) { requireNotNullArg(pdfsam, "Application info cannot be null"); this.pdfsam = pdfsam; } @Override public List<NewsData> getLatestNews() { try { return JSON.std.with(Feature.READ_ONLY, true).listOfFrom(NewsData.class, urlToStream(new URL(pdfsam.property(ConfigurableProperty.NEWS_URL)))); } catch (IOException e) { LOG.warn(DefaultI18nContext.getInstance().i18n("Unable to retrieve latest news"), e); } return Collections.emptyList(); } @Override public int getLatestNewsSeen() { return Preferences.userRoot().node(NEWS_PATH).getInt(LATEST_NEWS_ID, -1); } @Override public void setLatestNewsSeen(int id) { Preferences.userRoot().node(NEWS_PATH).putInt(LATEST_NEWS_ID, id); LOG.trace("Latest news id stored"); } @Override public int getLatestImportantNewsSeen() { return Preferences.userRoot().node(NEWS_PATH).getInt(LATEST_IMPORTANT_NEWS_ID, -1); } @Override public void setLatestImportantNewsSeen(int id) { Preferences.userRoot().node(NEWS_PATH).putInt(LATEST_IMPORTANT_NEWS_ID, id); LOG.trace("Latest important news id stored"); } @Override public void clear() { Preferences prefs = Preferences.userRoot().node(NEWS_PATH); try { prefs.removeNode(); prefs.flush(); } catch (BackingStoreException e) { LOG.error("Unable to clear latest news store", e); } } }