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package net.sf.flock.parser;
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import java.util.Date;
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import java.util.Iterator;
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import java.util.List;
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import net.sf.flock.FeedFactoryI;
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import net.sf.flock.FeedI;
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import net.sf.flock.FlockResourceException;
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import net.sf.flock.SubscriptionInfoI;
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import org.apache.log4j.LogManager;
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import org.apache.log4j.Logger;
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import org.jdom.Attribute;
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import org.jdom.Document;
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import org.jdom.Element;
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public class Rss091Parser implements FeedParserI {
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private final static Logger LOGGER = LogManager.getLogger(Rss091Parser.class);
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/**
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* @see net.sf.flock.parser.FeedParserI#isSuitable(Document)
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*/
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public boolean isSuitable(Document doc) {
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Element root = doc.getRootElement();
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if (!"rss".equals(root.getName())) {
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return false;
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}
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Attribute rssVersion = root.getAttribute("version");
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if (rssVersion==null || rssVersion.getValue()==null) {
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return false;
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}
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LOGGER.debug("Found RSS version " + rssVersion.getValue());
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return rssVersion.getValue().startsWith("0.9");
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}
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/**
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* @see net.sf.flock.parser.FeedParserI#parse(FeedFactoryI, Document)
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*/
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public FeedI parse(SubscriptionInfoI subscriptionInfoI,FeedFactoryI feedFactory, Document doc) throws FlockResourceException {
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Element root = doc.getRootElement();
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Element channel = root.getChild("channel");
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// 1 title element
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FeedI feed = feedFactory.createFeed(subscriptionInfoI);
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feed.setTitle( HTMLUtil.unescape(channel.getChildTextTrim("title")) );
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// 1 description element
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// !!! feed.setDescription(channel.getChildTextTrim("description"));
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// 1 link element
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feed.setSite(ParserUtil. getURL(channel.getChildTextTrim("link")));
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// 1 language element
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// !!! feed.setLanguage(channel.getChildTextTrim("language"));
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long parseDate = System.currentTimeMillis();
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// 1..n item elements
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List items = channel.getChildren("item");
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Iterator i = items.iterator();
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while (i.hasNext()) {
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Element item = (Element) i.next();
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// get title element
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Element elTitle = item.getChild("title");
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String strTitle = "<No Title>";
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if (elTitle != null) {
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strTitle = HTMLUtil.unescape( elTitle.getTextTrim() );
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}
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LOGGER.debug("Item element found (" + strTitle + ").");
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// get link element
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Element elLink = item.getChild("link");
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String strLink = "";
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if (elLink != null) {
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strLink = elLink.getTextTrim();
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}
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// get description element
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Element elDesc = item.getChild("description");
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String strDesc = "";
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if (elDesc != null) {
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strDesc = elDesc.getTextTrim();
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}
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// generate new RSS item (link to article)
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feed.newItem( new Date(parseDate--), strTitle, strDesc, ParserUtil.getURL(strLink));
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}
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// 0..1 rating element
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// 0..1 image element
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/*
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Element image = channel.getChild("image");
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if (image != null) {
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ImageIF rssImage =
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cBuilder.makeImage(image.getChildTextTrim("title"),
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getURL(image.getChildTextTrim("url")));
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Element imgWidth = image.getChild("width");
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if (imgWidth != null) {
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try {
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rssImage.setWidth(Integer.parseInt(imgWidth.getTextTrim()));
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} catch (NumberFormatException e) {
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logger.warn(e);
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}
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}
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Element imgHeight = image.getChild("height");
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if (imgHeight != null) {
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try {
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rssImage.setHeight(Integer.parseInt(imgHeight.getTextTrim()));
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} catch (NumberFormatException e) {
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logger.warn(e);
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}
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}
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Element imgDescr = image.getChild("description");
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if (imgDescr != null) {
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rssImage.setDescription(imgDescr.getTextTrim());
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}
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chnl.setImage(rssImage);
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}
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// 0..1 textinput element
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Element txtinp = channel.getChild("textinput");
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if (txtinp != null) {
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TextInputIF rssTextInput =
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cBuilder.makeTextInput(txtinp.getChild("title").getTextTrim(),
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txtinp.getChild("description").getTextTrim(),
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getURL(txtinp.getChild("link").getTextTrim()));
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chnl.setTextInput(rssTextInput);
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}
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// 0..1 copyright element
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Element copyright = channel.getChild("copyright");
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if (copyright != null) {
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chnl.setCopyright(copyright.getTextTrim());
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}
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// 0..1 pubDate element
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Element pubDate = channel.getChild("pubDate");
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// if (pubDate != null) {
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// chnl.setPubDate(pubDate.getTextTrim());
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// }
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// 0..1 lastBuildDate element
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Element lastBuildDate = channel.getChild("lastBuildDate");
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// if (lastBuildDate != null) {
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// chnl.setLastBuildDate(lastBuildDate.getTextTrim());
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// }
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// 0..1 docs element
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// 0..1 managingEditor element
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Element managingEditor = channel.getChild("managingEditor");
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if (managingEditor != null) {
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chnl.setCreator(managingEditor.getTextTrim());
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}
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// 0..1 webMaster element
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Element webMaster = channel.getChild("webMaster");
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if (webMaster != null) {
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chnl.setPublisher(webMaster.getTextTrim());
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}
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// 0..1 skipHours element
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// 0..1 skipDays element
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*/
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0
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return feed;
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}
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}
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