Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.ByteArrayInputStream;
import java.io.StringWriter;

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

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;

public class Main {
    public static void main(String[] args) throws Exception {
        String initial = "<root><param value=\"abc\"/><param value=\"bc\"/></root>";
        ByteArrayInputStream is = new ByteArrayInputStream(initial.getBytes());
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document doc = db.parse(is);

        // Create the new xml fragment
        Text a = doc.createTextNode("asdf");
        Node p = doc.createElement("parameterDesc");
        p.appendChild(a);
        Node i = doc.createElement("insert");
        i.appendChild(p);
        Element r = doc.getDocumentElement();
        r.insertBefore(i, r.getFirstChild());
        r.normalize();

        // Format the xml for output
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");

        // initialize StreamResult with File object to save to file
        StreamResult result = new StreamResult(new StringWriter());
        DOMSource source = new DOMSource(doc);
        transformer.transform(source, result);

        System.out.println(result.getWriter().toString());

    }
}