XPath Processing of Small-to-Medium Documents

• Goal: Print all the headlines in an RSS feed

• Requires XOM 1.1

import java.io.IOException;
import nu.xom.*;

public class XPathHeadlines {
    
    public static void main(String[] args) {
  
        String url = "http://www.bbc.co.uk/syndication/feeds/news/ukfs_news/world/rss091.xml";
        if (args.length > 0) {
          url = args[0];
        }
        
        try {
          Builder parser = new Builder();
          Document doc = parser.build(url);
          Nodes titles = doc.query("//title");
          for (int i = 0; i < titles.size(); i++) {
            System.out.println(titles.get(i).getValue());
          }
        }
        catch (ParsingException ex) {
          System.out.println(url + " is not well-formed.");
          System.out.println(ex.getMessage());
        }
        catch (IOException ex) { 
          System.out.println(
           "Due to an IOException, the parser could not read " + url
          ); 
        }
  
    }

}