Main.java Source code

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Here is the source code for Main.java

Source

import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpression;
import javax.xml.xpath.XPathFactory;

import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class Main {
    public static void main(String[] args) throws Exception {
        List<String> names = new ArrayList<>();
        URL oracle = new URL("http://weather.yahooapis.com/forecastrss?w=2502265");
        InputStream is = oracle.openStream();
        DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
        domFactory.setNamespaceAware(true);
        DocumentBuilder builder = domFactory.newDocumentBuilder();
        Document doc = builder.parse(is);
        XPathFactory factory = XPathFactory.newInstance();
        XPath xpath = factory.newXPath();
        XPathExpression expr = xpath.compile("//*:*/@*");
        Object result = expr.evaluate(doc, XPathConstants.NODESET);
        NodeList nl = (NodeList) result;
        for (int i = 0; i < nl.getLength(); i++) {
            names.add(nl.item(i).getNodeName());
            Node node = nl.item(i);
            String path = "." + node.getNodeName() + " = " + node.getNodeValue();
            node = ((Attr) node).getOwnerElement();
            while (node != null) {
                path = node.getNodeName() + '/' + path;
                node = node.getParentNode();
            }
            System.out.println(path);
        }
    }
}