Java tutorial
/** * Android ownCloud News * * @author David Luhmer * @copyright 2013 David Luhmer david-dev@live.de * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE * License as published by the Free Software Foundation; either * version 3 of the License, or any later version. * * This library 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 library. If not, see <http://www.gnu.org/licenses/>. * */ package de.luhmer.owncloudnewsreader.reader.owncloud; import org.json.JSONException; import org.json.JSONObject; import java.util.ArrayList; import java.util.Date; import java.util.List; import de.luhmer.owncloudnewsreader.database.DatabaseConnectionOrm; import de.luhmer.owncloudnewsreader.database.model.RssItem; public class InsertItemIntoDatabase implements IHandleJsonObject { DatabaseConnectionOrm dbConn; List<RssItem> buffer; static final short bufferSize = 200; int index = 0; //List<Feed> feeds; public InsertItemIntoDatabase(DatabaseConnectionOrm dbConn) { this.dbConn = dbConn; //buffer = new RssItem[bufferSize]; buffer = new ArrayList<RssItem>(bufferSize); //feeds = dbConn.getListOfFeeds(); } private static RssItem parseItem(JSONObject e) throws JSONException { Date pubDate = new Date(e.optLong("pubDate") * 1000); String content = e.optString("body"); content = content.replaceAll("<img[^>]*feedsportal.com.*>", ""); content = content.replaceAll("<img[^>]*statisches.auslieferung.commindo-media-ressourcen.de.*>", ""); content = content.replaceAll("<img[^>]*auslieferung.commindo-media-ressourcen.de.*>", ""); content = content.replaceAll("<img[^>]*rss.buysellads.com.*>", ""); String url = e.optString("url"); String guid = e.optString("guid"); String enclosureLink = e.optString("enclosureLink"); String enclosureMime = e.optString("enclosureMime"); if (enclosureLink.trim().equals("") && guid.startsWith("http://gdata.youtube.com/feeds/api/")) { enclosureLink = url; enclosureMime = "youtube"; } RssItem rssItem = new RssItem(); rssItem.setId(e.getLong("id")); rssItem.setFeedId(e.optLong("feedId")); rssItem.setLink(url); rssItem.setTitle(e.optString("title")); rssItem.setGuid(guid); rssItem.setGuidHash(e.optString("guidHash")); rssItem.setBody(content); rssItem.setAuthor(e.optString("author")); rssItem.setLastModified(new Date(e.optLong("lastModified"))); rssItem.setEnclosureLink(enclosureLink); rssItem.setEnclosureMime(enclosureMime); rssItem.setRead(!e.optBoolean("unread")); rssItem.setRead_temp(rssItem.getRead()); rssItem.setStarred(e.optBoolean("starred")); rssItem.setStarred_temp(rssItem.getStarred()); rssItem.setPubDate(pubDate); return rssItem; /* new RssItem(0, e.optString("id"), e.optString("title"), url, content, !e.optBoolean("unread"), null, e.optString("feedId"), null, date, e.optBoolean("starred"), guid, e.optString("guidHash"), e.optString("lastModified"), e.optString("author"), enclosureLink, enclosureMime); */ } @Override public boolean performAction(JSONObject jObj) { boolean result = false; try { RssItem rssFile = parseItem(jObj); //buffer[index] = rssFile; buffer.add(rssFile); index++; if (rssFile != null) result = !rssFile.getRead(); //if (index >= bufferSize) { if (buffer.size() >= bufferSize) { performDatabaseBatchInsert(); } } catch (Exception ex) { ex.printStackTrace(); } return result; } public boolean performDatabaseBatchInsert() { if (index > 0) { //dbConn.insertNewItems(buffer); dbConn.insertNewItems(buffer.toArray(new RssItem[buffer.size()])); index = 0; //buffer = new RssItem[bufferSize]; buffer = new ArrayList<RssItem>(bufferSize); } return true; } }