Java tutorial
/* * ModuleParserRSS2.java * * Created on November 20, 2005, 6:15 PM * * This library is provided under dual licenses. * You may choose the terms of the Lesser General Public License or the Apache * License at your discretion. * * Copyright (C) 2005 Robert Cooper, Temple of the Screaming Penguin * * * This library 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 2.1 of the License, or (at your option) 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.rometools.modules.cc.io; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Locale; import org.jdom2.Element; import org.jdom2.Namespace; import com.rometools.modules.cc.CreativeCommonsImpl; import com.rometools.modules.cc.types.License; import com.rometools.rome.feed.module.Module; import com.rometools.rome.io.ModuleParser; /** * * @version $Revision: 1.3 $ * @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a> */ public class ModuleParserRSS2 implements ModuleParser { private static final Namespace NS = Namespace.getNamespace(CreativeCommonsImpl.RSS2_URI); /** Creates a new instance of ModuleParserRSS2 */ public ModuleParserRSS2() { } @Override public Module parse(final Element element, final Locale locale) { final CreativeCommonsImpl module = new CreativeCommonsImpl(); // Do channel global { Element root = element; while (!root.getName().equals("channel") && !root.getName().equals("feed")) { root = root.getParentElement(); } final ArrayList<License> licenses = new ArrayList<License>(); List<Element> items = null; if (root.getName().equals("channel")) { items = root.getChildren("item"); } else { items = root.getChildren("entry"); } final Iterator<Element> iit = items.iterator(); while (iit.hasNext()) { final Element item = iit.next(); final List<Element> licenseTags = item.getChildren("license", NS); final Iterator<Element> lit = licenseTags.iterator(); while (lit.hasNext()) { final Element licenseTag = lit.next(); final License license = License.findByValue(licenseTag.getTextTrim()); if (!licenses.contains(license)) { ; } licenses.add(license); } } if (!licenses.isEmpty()) { module.setAllLicenses(licenses.toArray(new License[0])); } } // do element local final ArrayList<License> licenses = new ArrayList<License>(); final List<Element> licenseTags = element.getChildren("license", NS); final Iterator<Element> it = licenseTags.iterator(); while (it.hasNext()) { final Element licenseTag = it.next(); licenses.add(License.findByValue(licenseTag.getTextTrim())); } if (!licenses.isEmpty()) { module.setLicenses(licenses.toArray(new License[0])); } if (module.getLicenses() != null && module.getAllLicenses() != null) { return module; } else { return null; } } @Override public String getNamespaceUri() { return CreativeCommonsImpl.RSS2_URI; } }