org.rometools.feed.module.cc.io.ModuleParserRSS1.java Source code

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Here is the source code for org.rometools.feed.module.cc.io.ModuleParserRSS1.java

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/*
 * CCModuleParser.java
 *
 * Created on November 20, 2005, 5:23 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.cc.io;

import com.sun.syndication.feed.module.Module;
import com.sun.syndication.io.ModuleParser;
import org.rometools.feed.module.cc.CreativeCommonsImpl;
import org.rometools.feed.module.cc.types.License;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.jdom2.Element;
import org.jdom2.Namespace;

/**
 * @version $Revision: 1.3 $
 * @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a>
 */
public class ModuleParserRSS1 implements ModuleParser {

    private static final Namespace NS = Namespace.getNamespace(CreativeCommonsImpl.RSS1_URI);
    static final Namespace RDF = Namespace.getNamespace(CreativeCommonsImpl.RDF_URI);

    /**
     * Creates a new instance of ModuleParserRSS1
     */
    public ModuleParserRSS1() {
    }

    public Module parse(Element element) {
        CreativeCommonsImpl module = new CreativeCommonsImpl();
        {
            // Parsing Channel level.
            Element root = element;
            while (root.getParentElement() != null)
                root = root.getParentElement();
            List licenseList = root.getChildren("License", NS);
            ArrayList licenses = new ArrayList();
            Iterator it = licenseList.iterator();
            while (it.hasNext()) {
                Element licenseTag = (Element) it.next();
                String licenseURI = licenseTag.getAttributeValue("about", RDF);
                if (licenseURI == null)
                    continue;
                License license = License.findByValue(licenseURI);
                {
                    ArrayList permitsValues = new ArrayList();
                    ArrayList requiresValues = new ArrayList();
                    List permitsTags = licenseTag.getChildren("permits", NS);
                    Iterator sit = permitsTags.iterator();
                    while (sit.hasNext()) {
                        Element permitTag = (Element) sit.next();
                        permitsValues
                                .add(License.Behaviour.findByValue(permitTag.getAttributeValue("resource", RDF)));
                    }
                    List requiresTags = licenseTag.getChildren("requires", NS);
                    sit = requiresTags.iterator();
                    while (sit.hasNext()) {
                        Element requireTag = (Element) sit.next();
                        requiresValues
                                .add(License.Behaviour.findByValue(requireTag.getAttributeValue("resource", RDF)));
                    }
                    license = new License(licenseURI,
                            (License.Behaviour[]) requiresValues
                                    .toArray(new License.Behaviour[requiresValues.size()]),
                            (License.Behaviour[]) permitsValues
                                    .toArray(new License.Behaviour[permitsValues.size()]));

                }

                licenses.add(license);
            }
            module.setAllLicenses((License[]) licenses.toArray(new License[0]));
        }
        ArrayList licenses = new ArrayList();
        List licenseTags = element.getChildren("license", NS);
        Iterator lit = licenseTags.iterator();
        while (lit.hasNext()) {
            Element licenseTag = (Element) lit.next();
            licenses.add(License.findByValue(licenseTag.getAttributeValue("resource", RDF)));
        }

        if (licenses.size() > 0) {
            module.setLicenses((License[]) licenses.toArray(new License[licenses.size()]));
        }

        if (module.getLicenses() != null || module.getAllLicenses() != null) {
            return module;
        } else {
            return null;
        }
    }

    public String getNamespaceUri() {
        return CreativeCommonsImpl.RSS1_URI;
    }

}