import lotus.domino.*;

import java.net.URL;
import java.io.PrintWriter;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;

import org.w3c.dom.CharacterData;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

public class JavaAgent extends AgentBase {

	public void NotesMain() {

		try {
			Session session = getSession();
			AgentContext agentContext = session.getAgentContext();
			PrintWriter out = getAgentOutput();
			Database db = agentContext.getCurrentDatabase();
			View externals = db.getView("ExternalsByID");

			DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
			URL u = new URL("http://services.newsgator.com/ngws/svc/ClippingsRSS.aspx?uid=62859&fid=4047759");

			Document doc = builder.parse(u.openStream());
			NodeList nodes = doc.getElementsByTagName("item");

			for(int i=0;i<nodes.getLength();i++) {

				Element element = (Element)nodes.item(i);

				//look for an elsewhere document for this item. if not there create a new one
				if ( externals.getDocumentByKey(getElementValue(element,"ng:postId"), true) == null ){
					lotus.domino.Document external = db.createDocument();

					external.replaceItemValue("Form", "external");
					external.replaceItemValue("Title", getElementValue(element,"title") );
					external.replaceItemValue("ExternalLink", getElementValue(element,"link") );
					external.replaceItemValue("BlogDateRFC822", getElementValue(element,"pubDate") );

					Date d = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z").parse(getElementValue(element,"pubDate"));
					Date now = new Date();

					SimpleDateFormat ndfd = new SimpleDateFormat("MM/dd/yyyy");
					SimpleDateFormat ndft = new SimpleDateFormat("HH:mm:ss");
					SimpleDateFormat dd = new SimpleDateFormat("EEE dd MMM yyyy");

					external.replaceItemValue("ExternalDate", ndfd.format(now));
					external.replaceItemValue("ExternalTime", ndft.format(now));
					external.replaceItemValue("ExternalDateDisplay", dd.format(now));

					external.replaceItemValue("PostID", getElementValue(element,"ng:postId") );

					external.replaceItemValue("ViewHTMLSummary", "<a href=\""+external.getItemValueString("ExternalLink")+"\">"
						+ external.getItemValueString("Title") + "</a><br /><span class=\"gray\">"
						+external.getItemValueString("ExternalDateDisplay")+"</span>");

					external.save(true, true);
				}

			} //for

		} catch(Exception e) {
			e.printStackTrace();
		}
	} //NotesMain

	private String getCharacterDataFromElement(Element e) {
		try {
			Node child = e.getFirstChild();
			if(child instanceof CharacterData) {
				CharacterData cd = (CharacterData) child;
				return cd.getData();
			}
		}
		catch(Exception ex) {
		}
		return "";
	} //private String getCharacterDataFromElement

	protected float getFloat(String value) {
		if(value != null && !value.equals("")) {
			return Float.parseFloat(value);
		}
		return 0;
	}

	protected String getElementValue(Element parent,String label) {
		return getCharacterDataFromElement((Element)parent.getElementsByTagName(label).item(0));
	}
}