MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.Enumeration;

import javax.swing.text.AttributeSet;
import javax.swing.text.MutableAttributeSet;
import javax.swing.text.html.HTML;
import javax.swing.text.html.HTMLEditorKit;

public class MainClass {
    public static void main(String[] args) {
        ParserGetter kit = new ParserGetter();
        HTMLEditorKit.Parser parser = kit.getParser();
        HTMLEditorKit.ParserCallback callback = new ReportAttributes();

        try {
            URL u = new URL("http://www.java2s.com");
            InputStream in = u.openStream();
            InputStreamReader r = new InputStreamReader(in);
            parser.parse(r, callback, false);
        } catch (IOException e) {
            System.err.println(e);
        }
    }
}

class ReportAttributes extends HTMLEditorKit.ParserCallback {

    public void handleStartTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
        this.listAttributes(attributes);
    }

    private void listAttributes(AttributeSet attributes) {
        Enumeration e = attributes.getAttributeNames();
        while (e.hasMoreElements()) {
            Object name = e.nextElement();
            Object value = attributes.getAttribute(name);
            if (!attributes.containsAttribute(name.toString(), value)) {
                System.out.println("containsAttribute() fails");
            }
            if (!attributes.isDefined(name.toString())) {
                System.out.println("isDefined() fails");
            }
            System.out.println(name + "=" + value);
        }
    }

    public void handleSimpleTag(HTML.Tag tag, MutableAttributeSet attributes, int position) {
        this.listAttributes(attributes);
    }
}

class ParserGetter extends HTMLEditorKit {
    public HTMLEditorKit.Parser getParser() {
        return super.getParser();
    }
}