XMLDocument

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;

import org.w3c.dom.DOMException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class XMLDocument {
    Document doc;

    //add seasonslashcurrentsong to Node sn
    public void appendelement(String seasonslashcurrentsong, Node sn) {
        Element ele = this.doc.createElement("soundFile");
        ele.setAttribute("fileName", seasonslashcurrentsong);
        sn.appendChild(ele);
        System.out.println("File: " + seasonslashcurrentsong + " was added.");
    }

    public NodeList getElementsByTagName(String tagname) {
        return this.doc.getElementsByTagName(tagname);
    }

    // Set the correct xml Header and release the finished xml Document at path
    public void releasexml(File path) {
        try {
            // these are necessary to make sure the xml.header stays the same
            TransformerFactory tFactory = TransformerFactory.newInstance();
            Transformer transformer = tFactory.newTransformer();
            transformer.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC, "yes");
            transformer.setOutputProperty(OutputKeys.ENCODING, this.doc.getXmlEncoding());
            transformer.setOutputProperty(OutputKeys.VERSION, this.doc.getXmlVersion());
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");

            DOMSource source = new DOMSource(this.doc);
            StreamResult result = new StreamResult(new FileOutputStream(path)); // voila
            transformer.transform(source, result);
        } catch (TransformerConfigurationException e) {
            e.printStackTrace();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (TransformerFactoryConfigurationError e) {
            e.printStackTrace();
        } catch (TransformerException e) {
            e.printStackTrace();
        }
    }

    // Constructor from path
    XMLDocument(File path) {
        try {
            DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = factory.newDocumentBuilder();
            this.doc = builder.parse(path);
            this.doc.setXmlStandalone(true);
        } catch (DOMException e) {
            e.printStackTrace();
        } catch (ParserConfigurationException e) {
            e.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}