Comment charger en ajax avec interface htmlunit?

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.List;
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException;
import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.html.HtmlAnchor;
import com.gargoylesoftware.htmlunit.html.HtmlButton;
import com.gargoylesoftware.htmlunit.html.HtmlForm;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
public class YoutubeBot {
private static final String YOUTUBE = "http://www.youtube.com";
public static void main(String[] args) throws FailingHttpStatusCodeException, MalformedURLException, IOException {
WebClient webClient = new WebClient();
webClient.setThrowExceptionOnScriptError(false);
//This is equivalent to typing youtube.com to the adress bar of browser
HtmlPage currentPage = webClient.getPage("http://www.youtube.com/results?search_type=videos&search_query=official+music+video&search_sort=video_date_uploaded&suggested_categories=10%2C24&uni=3");
//Get form where submit button is located
HtmlForm searchForm = (HtmlForm) currentPage.getElementById("masthead-search");
//Get the input field.
HtmlTextInput searchInput = (HtmlTextInput) currentPage.getElementById("masthead-search-term");
//Insert the search term.
searchInput.setText("java");
//Workaround: create a 'fake' button and add it to the form.
HtmlButton submitButton = (HtmlButton) currentPage.createElement("button");
submitButton.setAttribute("type", "submit");
searchForm.appendChild(submitButton);
//Workaround: use the reference to the button to submit the form. 
HtmlPage newPage = submitButton.click();
//Find all links on page with given class
final List<HtmlAnchor> listLinks = (List<HtmlAnchor>) currentPage.getByXPath("//a[@class='ux-thumb-wrap result-item-thumb']");      
//Print all links to console
for (int i=0; i<listLinks.size(); i++)
System.out.println(YOUTUBE + listLinks.get(i).getAttribute("href"));
}
}

Ce code fonctionne mais je veux juste trier les clips de youtube par exemple par date de téléchargement. Comment faire cela avec interface htmlunit? Je dois cliquer sur le filtre, ce qui devrait charger le contenu par requête ajax et puis j'ai cliquer sur "date de Téléchargement" lien. Je ne connais pas cette première étape, pour charger le contenu ajax. Est-ce possible avec interface htmlunit?

OriginalL'auteur | 2011-07-22