Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.StringReader;
import java.io.StringWriter;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
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.NamedNodeMap;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;

public class Main {
    public static String getXMLData() {
        return "<a attr='value'></a>";
    }

    public static void main(String[] argv) throws Exception {
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        Document doc = factory.newDocumentBuilder().parse(new InputSource(new StringReader(getXMLData())));

        System.out.println(getAttributeValue(doc.getDocumentElement(), "attr"));

        System.out.println(documentToString(doc));

    }

    public static String getAttributeValue(final Element base, final String name) {

        // get attribute of this element...
        NamedNodeMap mapAttributes = base.getAttributes();
        Node node = mapAttributes.getNamedItem(name);
        if (node != null) {
            return node.getNodeValue();
        }
        return null;
    }

    public static String documentToString(Document document) {
        try {
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer trans = tf.newTransformer();
            StringWriter sw = new StringWriter();
            trans.transform(new DOMSource(document), new StreamResult(sw));
            return sw.toString();
        } catch (TransformerException tEx) {
            tEx.printStackTrace();
        }
        return null;
    }
}