package cinfine;

import java.io.File;
import java.io.IOException;
import java.io.OutputStream;

import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.output.XMLOutputter;

/**
 * <p><code>Conduct</code> reads an XML conduct file and
 *   builds a JDOM <code>Document</code> using a SAX 2.0
 *   parser.
 * </p>
 *
 * @author Srinivas Nagulapalli
 * @version 1.0
 */
public class Conduct {

    /**
     * <p>
     * This provides a static entry point for creating a JDOM
     *   <code>{@link Document}</code> object using a SAX 2.0
     *   parser (an <code>XMLReader</code> implementation).
     * </p>
     *
     * @param args <code>String[]</code>
     *        <ul>
     *         <li>First argument: filename of XML document to parse</li>
     *         <li>Second argument: optional name of SAX Driver class</li>
     *        </ul>
     */
    public static void main(String[] args) {
        if ((args.length != 1) && (args.length != 2)) {
            System.out.println(
                "Usage: java cinfine.Conduct " +
                "[XML document filename] ([SAX Driver Class])");
            return;
        }

        // Load filename and SAX driver class
        String filename = args[0];
        String saxDriverClass = null;
        if (args.length == 2) {
            saxDriverClass = args[1];
        }

        // Request document building with validation
        try {
            SAXBuilder builder = null;
            if (saxDriverClass == null) {
                builder = new SAXBuilder(true); //with validation- this line does NOT work!
                //builder = new SAXBuilder(); //without validation - this line works fine!
            } else {
                builder = new SAXBuilder(saxDriverClass);
            }
            Document doc = builder.build(filename);
            // Create an outputter
            XMLOutputter outputter = new XMLOutputter();
            //outputter.setTrimText(true);
            //outputter.setExpandEmptyElements(true);
            outputter.output(doc, System.out);
        } catch (JDOMException e) {
            if (e.getCause() != null) {
                e.getCause().printStackTrace();
            } else {
                e.printStackTrace();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}