SodhanaLibrary

<blog url>/atom.xml?redirect=false&start-index=1&max-results=50

<feed ----->
  -----
  <entry>
     -----
     <title>----</title>
     <category term="---"/>
     <category term="---"/>
     <content ---->
        ----
     </content>
  </entry>
</feed>

import java.io.InputStream;
import java.net.URL;
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.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

public class BloggerReader {
    static int FEED_COUNT = 50;
    public static void main(String[] args) {
        try {
            int START_INDEX = 1; 
            while (true) {
                // Atom feed URL
                URL url = new URL(
                        "http://blog.sodhanalibrary.com/atom.xml?redirect=false&start-index="+START_INDEX+"&max-results="
                                + FEED_COUNT);
                InputStream input = url.openStream();

                // XPATH to get entries
                DocumentBuilderFactory factory = DocumentBuilderFactory
                        .newInstance();
                DocumentBuilder builder = factory.newDocumentBuilder();
                Document doc = builder.parse(input);
                XPathFactory xPathfactory = XPathFactory.newInstance();
                XPath xpath = xPathfactory.newXPath();
                XPathExpression expr = xpath.compile("/feed/entry");

                // Get Nodelist of entries
                NodeList nl = (NodeList) expr.evaluate(doc,
                        XPathConstants.NODESET);

                // iterate Nodelist
                for (int i = 0; i < nl.getLength(); i++) {
                    NodeList nl1 = nl.item(i).getChildNodes();

                    // iterate child nodes
                    for (int j = 0; j < nl1.getLength(); j++) {
                        Node node = nl1.item(j);
                        if (node.getNodeName().equals("title")) {
                            // print title
                            System.out.println(node.getTextContent());
                        } else if (node.getNodeName().equals("category")) {
                            // print categories
                            System.out.println(node.getAttributes()
                                    .getNamedItem("term").getTextContent());
                        }
                    }
                }
                
                START_INDEX += FEED_COUNT;
                if(FEED_COUNT > nl.getLength()) {
                  break;
                };
            }
        } catch (SAXParseException err) {
            err.printStackTrace();
        } catch (SAXException e) {
            e.printStackTrace();
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }
}