Java tutorial
/* * ITunesGenerator.java * * Created on August 1, 2005, 10:44 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 org.rometools.feed.module.itunes.io; import com.sun.syndication.feed.module.Module; import org.rometools.feed.module.itunes.AbstractITunesObject; import org.rometools.feed.module.itunes.EntryInformationImpl; import org.rometools.feed.module.itunes.FeedInformationImpl; import org.rometools.feed.module.itunes.types.Category; import com.sun.syndication.io.ModuleGenerator; import org.jdom2.Element; import org.jdom2.Namespace; import java.util.HashSet; import java.util.Iterator; /** * @version $Revision: 1.3 $ * @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a> */ public class ITunesGenerator implements ModuleGenerator { private static final HashSet SET = new HashSet(); private static final Namespace NS = Namespace.getNamespace(AbstractITunesObject.PREFIX, AbstractITunesObject.URI); static { SET.add(NS); } /** Creates a new instance of ITunesGenerator */ public ITunesGenerator() { } public void generate(Module module, Element element) { Element root = element; while ((root.getParent() != null) && root.getParent() instanceof Element) { root = (Element) root.getParent(); } root.addNamespaceDeclaration(NS); if (!(module instanceof AbstractITunesObject)) { return; } AbstractITunesObject itunes = (AbstractITunesObject) module; if (itunes instanceof FeedInformationImpl) { //Do Channel Specific Stuff. FeedInformationImpl info = (FeedInformationImpl) itunes; Element owner = this.generateSimpleElement("owner", ""); Element email = this.generateSimpleElement("email", info.getOwnerEmailAddress()); owner.addContent(email); Element name = this.generateSimpleElement("name", info.getOwnerName()); owner.addContent(name); element.addContent(owner); if (info.getImage() != null) { Element image = this.generateSimpleElement("image", ""); image.setAttribute("href", info.getImage().toExternalForm()); element.addContent(image); } for (Iterator it = info.getCategories().iterator(); it.hasNext();) { Category cat = (Category) it.next(); Element category = this.generateSimpleElement("category", ""); category.setAttribute("text", cat.getName()); if (cat.getSubcategory() != null) { Element subcat = this.generateSimpleElement("category", ""); subcat.setAttribute("text", cat.getSubcategory().getName()); category.addContent(subcat); } element.addContent(category); } } else if (itunes instanceof EntryInformationImpl) { EntryInformationImpl info = (EntryInformationImpl) itunes; if (info.getDuration() != null) { element.addContent(this.generateSimpleElement("duration", info.getDuration().toString())); } } if (itunes.getAuthor() != null) { element.addContent(this.generateSimpleElement("author", itunes.getAuthor())); } if (itunes.getBlock()) { element.addContent(this.generateSimpleElement("block", "")); } if (itunes.getExplicit()) { element.addContent(this.generateSimpleElement("explicit", "yes")); } else { element.addContent(this.generateSimpleElement("explicit", "no")); } if (itunes.getKeywords() != null) { StringBuffer sb = new StringBuffer(); for (int i = 0; i < itunes.getKeywords().length; i++) { if (i != 0) { sb.append(", "); } sb.append(itunes.getKeywords()[i]); } element.addContent(this.generateSimpleElement("keywords", sb.toString())); } if (itunes.getSubtitle() != null) { element.addContent(this.generateSimpleElement("subtitle", itunes.getSubtitle())); } if (itunes.getSummary() != null) { element.addContent(this.generateSimpleElement("summary", itunes.getSummary())); } } /** Returns the list of namespaces this module uses. * @return set of Namespace objects. */ public java.util.Set getNamespaces() { return SET; } /** Returns the namespace URI this module handles. * @return Returns the namespace URI this module handles. */ public String getNamespaceUri() { return AbstractITunesObject.URI; } protected Element generateSimpleElement(String name, String value) { Element element = new Element(name, NS); element.addContent(value); return element; } }