import java.io.*;

import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;

import java.util.Stack;
import java.util.Enumeration;

import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;

public class XmlFileSplitter extends DefaultHandler {

    private static String dir = "c:\\users\\matthew\\desktop\\lab6\\";
    private static String outDir = "c:\\users\\matthew\\desktop\\lab6\\xmlstuff\\";
    private StringBuffer buffer;
    private int level;
    private boolean empty;
    private String tmpStream;
    private static String[] regions = { "africa", "asia", "australia",
        "europe", "namerica", "samerica" };
    public Writer out;
    private int increment = 0;
    public XmlFileSplitter() {
        buffer = new StringBuffer();
        level = 0;
    }

    public void startElement(String namespaceURI, String sName, // simple name
            String qName, // qualified name
            Attributes attrs) throws SAXException {
        level++;
        buffer.append(indentation(level)+"<"+sName);

        String eName = sName; // element name

        if ("".equals(eName)) {
            eName = qName; // not namespaceAware
        }

        if (attrs != null)
        {
            for (int i = 0; i < attrs.getLength(); i++) {
                String aName = attrs.getLocalName(i); // Attr name

                if ("".equals(aName)) {
                    aName = attrs.getQName(i);
                }

                buffer.append(" " + aName + "=\"" + attrs.getValue(aName) + "\"");

            }

        }
        buffer.append(">");

        empty = true;
    }

    public void endElement(String uri, String localName, String qName)
    /* Missing code start here */
            throws SAXException {

        level--;
        buffer.append("</" + localName + ">");

        if(localName.equals("africa")||localName.equals("asia") || localName.equals("australia") || localName.equals("europe") || localName.equals("namerica") || localName.equals("samerica"))
        {

            String filename = localName + ".xml";
            PrintWriter printWriter;
            try {
                buffer.append(indentation(level-1)+"</regions>\n");
                buffer.append(indentation(level-2)+"</site>\n");
                printWriter = new PrintWriter( new FileWriter(outDir + filename));
                printWriter.println(buffer.toString());
                System.out.println("File saved.");
                printWriter.close();
                buffer.setLength(0);
                buffer.append(indentation(level-2)+"<site>\n");
                buffer.append(indentation(level-1)+"<regions>\n");

            } catch (IOException e) {
                // TODO Auto-generated catch block
                System.out.println("nope");
                e.printStackTrace();
            }
        }


        /* Missing code end here */
    }




    public String indentation(int level) {
        String indent = "";
        for (int i = 0; i < level; i++)
            indent += " ";
        return indent;
    }

    public static void main(String[] args) throws Exception {
        String file = "auction.xml";
        SAXParserFactory pfactory = SAXParserFactory.newInstance();
        pfactory.setValidating(false);
        pfactory.setNamespaceAware(true);
        SAXParser parser = pfactory.newSAXParser();
        XMLReader reader = parser.getXMLReader();
        XmlFileSplitter splitter = new XmlFileSplitter();
        reader.setContentHandler(splitter);
        reader.parse(new InputSource(new FileReader(dir + file)));
    }


}