seostudio.Sitemap.java Source code

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/*
 * Copyright 2010 Seostudio team
 *
 *   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 seostudio;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Collection;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Namespace;
import org.dom4j.QName;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class Sitemap {
    public static String generateSitemap(Collection<Result> results) throws IOException {
        Namespace namespace = new Namespace("", "http://www.sitemaps.org/schemas/sitemap/0.9");
        Namespace xsi = new Namespace("xsi", "http://www.w3.org/2001/XMLSchema-instance");

        Element urlset = DocumentHelper.createElement(new QName("urlset", namespace));
        urlset.addAttribute(new QName("schemaLocation", xsi),
                "http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd");
        Document document = DocumentHelper.createDocument(urlset);

        for (Result result : results) {
            if (!result.visited || !result.index)
                continue;

            Element url = DocumentHelper.createElement(new QName("url", namespace));
            Element loc = DocumentHelper.createElement(new QName("loc", namespace));
            Element priority = DocumentHelper.createElement(new QName("priority", namespace));

            loc.setText(result.url);
            if (result.depth == 0) {
                priority.setText("1.0");
            } else {
                priority.setText("0.8");
            }

            url.add(loc);
            url.add(priority);
            urlset.add(url);
        }

        StringWriter out = new StringWriter();
        new XMLWriter(out, OutputFormat.createCompactFormat()).write(document);
        return out.toString();
    }

    public static void writeToFile(String sitemap) throws IOException {
        File f = new File("sitemap.xml");
        f.createNewFile();
        Writer output = new BufferedWriter(new FileWriter(f));
        output.write(sitemap);
        output.close();
    }
}