public FilterTest() 
{

}

Creates new FilterTest

 public static  void main(String[] args) throws Exception 
{
        /* XMLWriter for viewing unfiltered input. */
        XMLWriter echo = new XMLWriter();
        /* Add pretty formatting to unformatted xml file. */
        SAXBuilder builder = new SAXBuilder();
        DataFormatFilter format = new DataFormatFilter(echo);
        format.setIndentStep(4);
        builder.setXMLFilter(format);
        InputStream in = FilterTest.class.getResourceAsStream("test1.xml");
        System.out.println(" -- test1.xml unfiltered -- \n");
        Document doc = builder.build(in);
        System.out.println(" -- test1.xml filtered by DataFormatFilter --\n");
        XMLOutputter outputter = new XMLOutputter();
        outputter.output(doc, System.out);
        System.out.println("\n");
        /* Remove pretty formatting from formatted xml file. */
        builder = new SAXBuilder();
        builder.setXMLFilter( new DataUnformatFilter(echo) );
        in = FilterTest.class.getResourceAsStream("test2.xml");
        System.out.println(" -- test2.xml unfiltered --\n");
        doc = builder.build(in);
        System.out.println(" -- test2.xml filtered by DataUnformatFilter --\n");
        outputter = new XMLOutputter();
        outputter.output(doc, System.out);
        System.out.println("\n");
}