framework/base/src/com/redfin/sitemapgenerator/SitemapGeneratorBuilder.java
package com.redfin.sitemapgenerator;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
/** A convenience class to let you configure options straightforwardly; don't instantiate by hand.
*
* <p>Instead, get one statically from a SitemapGenerator class. For example: <code>WebSitemapGenerator g =<br>
* WebSitemapGenerator.builder("http://example.com", myDir).gzip(true).autoValidate(true).build()</code></p>
*
*
* @author Dan Fabulich
*
* @param <G>
*/
//that weird thing with generics is so sub-classed objects will return themselves
//It makes sense, I swear! http://madbean.com/2004/mb2004-3/
public class SitemapGeneratorBuilder<G extends SitemapGenerator<?,?>> extends AbstractSitemapGeneratorOptions<SitemapGeneratorBuilder<G>> {
Class<G> sitemapGeneratorClass;
/**Configures the generator with a base URL and directory to write the sitemap files.
*
* @param baseUrl All URLs in the generated sitemap(s) should appear under this base URL
* @param baseDir Sitemap files will be generated in this directory as either "sitemap.xml" or "sitemap1.xml" "sitemap2.xml" and so on.
* @param sitemapGeneratorClass the class of the generator the builder will create
*/
public SitemapGeneratorBuilder(URL baseUrl, File baseDir, Class<G> sitemapGeneratorClass) {
super(baseUrl, baseDir);
this.sitemapGeneratorClass = sitemapGeneratorClass;
}
/**Configures the generator with a base URL and directory to write the sitemap files.
*
* @param baseUrl All URLs in the generated sitemap(s) should appear under this base URL
* @param baseDir Sitemap files will be generated in this directory as either "sitemap.xml" or "sitemap1.xml" "sitemap2.xml" and so on.
* @param sitemapGeneratorClass the class of the generator the builder will create
*/
public SitemapGeneratorBuilder(String baseUrl, File baseDir, Class<G> sitemapGeneratorClass) throws MalformedURLException {
this(new URL(baseUrl), baseDir, sitemapGeneratorClass);
}
/** Constructs a sitemap generator configured with the options you specified */
public G build() {
try {
return sitemapGeneratorClass.getDeclaredConstructor(AbstractSitemapGeneratorOptions.class).newInstance(this);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}