Java tutorial
/* Copyright (C) 2003-2015 JabRef contributors. 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.sf.jabref.logic.mods; import java.util.HashSet; import java.util.List; import java.util.Set; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import net.sf.jabref.model.database.BibDatabase; import net.sf.jabref.model.entry.BibEntry; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; /** * @author Michael Wrighton * */ public class MODSDatabase { private Set<MODSEntry> entries; private static final Log LOGGER = LogFactory.getLog(MODSDatabase.class); public MODSDatabase() { // maybe make this sorted later... entries = new HashSet<>(); } public MODSDatabase(BibDatabase database, List<BibEntry> entries) { if (entries == null) { addEntries(database.getEntries()); } else { addEntries(entries); } } private void addEntries(List<BibEntry> entriesToAdd) { entries = new HashSet<>(); for (BibEntry entry : entriesToAdd) { MODSEntry newMods = new MODSEntry(entry); entries.add(newMods); } } public Document getDOMrepresentation() { Document result = null; try { DocumentBuilder dbuild = DocumentBuilderFactory.newInstance().newDocumentBuilder(); result = dbuild.newDocument(); Element modsCollection = result.createElement("modsCollection"); modsCollection.setAttribute("xmlns", "http://www.loc.gov/mods/v3"); modsCollection.setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance"); modsCollection.setAttribute("xsi:schemaLocation", "http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-0.xsd"); for (MODSEntry entry : entries) { Node node = entry.getDOMrepresentation(result); modsCollection.appendChild(node); } result.appendChild(modsCollection); } catch (Exception e) { LOGGER.info("Could not get DOM representation", e); } return result; } }