import java.net.URL;
import java.util.Set;
import java.util.Scanner;
import java.io.IOException;

public class IndexTest {

    private static Index index = new Index();

    public static void main(String[] searchWords){
        try {
            // first fill the index up from some sample pages
            indexPage(new URL("http://www.gustavus.edu/+max/"));
            indexPage(new URL("http://www.gustavus.edu/+max/courses/S2006/MCS-287/syllabus.html"));
            indexPage(new URL("http://java.sun.com/"));
            // now search the index for pages with the given words
            for(int i = 0; i < searchWords.length; i++){
                if(i > 0){
                    System.out.println();  // blank line between searches
                }
                System.out.println("Hits for " + searchWords[i] + ":");
                for(URL u : index.get(searchWords[i])){
                    System.out.println(u);
                }
            }
        } catch(Exception e){
            e.printStackTrace();
            System.exit(1);
        }
    }

    private static void indexPage(URL u) throws IOException{
        Scanner s = new Scanner(u.openStream());
        s.useDelimiter("[^a-zA-Z0-9]+");
        while(s.hasNext()){
            index.put(s.next(), u);
        }
    }
}