package org.openmeetings.app.rss;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.net.URL;
import java.net.HttpURLConnection;
import org.slf4j.Logger;
import org.red5.logging.Red5LoggerFactory;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.Attribute;
import org.dom4j.io.SAXReader;
import org.openmeetings.app.data.basic.AuthLevelmanagement;
import org.openmeetings.app.data.basic.Configurationmanagement;
import org.openmeetings.app.remote.red5.ScopeApplicationAdapter;
public class LoadAtomRssFeed {
private static final Logger log = Red5LoggerFactory.getLogger(LoadAtomRssFeed.class, ScopeApplicationAdapter.webAppRootKey);
private static LoadAtomRssFeed instance;
private LoadAtomRssFeed() {}
public static synchronized LoadAtomRssFeed getInstance() {
if (instance == null) {
instance = new LoadAtomRssFeed();
}
return instance;
}
public LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>>> getRssFeeds(Long user_level){
try {
if (AuthLevelmanagement.getInstance().checkUserLevel(user_level)){
LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>>> returnMap = new LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>>>();
String url1 = Configurationmanagement.getInstance().getConfKey(3,"rss_feed1").getConf_value();
returnMap.put("feed1", this.parseRssFeed(url1));
String url2 = Configurationmanagement.getInstance().getConfKey(3,"rss_feed2").getConf_value();
returnMap.put("feed2", this.parseRssFeed(url2));
return returnMap;
} else {
log.error("[getRssFeeds] authorization required");
}
} catch (Exception ex) {
log.error("[getRssFeeds]",ex);
}
return null;
}
public LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>> parseRssFeed(String urlEndPoint) {
try {
LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>> lMap = new LinkedHashMap<String,LinkedHashMap<String,LinkedHashMap<String,Object>>>();
URL url = new URL(urlEndPoint);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestProperty(
"user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)");
conn.setRequestProperty("Referer", "http://code.google.com/p/openmeetings/");
conn.connect();
SAXReader reader = new SAXReader();
Document document = reader.read(conn.getInputStream());
Element root = document.getRootElement();
int l=0;
for ( Iterator i = root.elementIterator(); i.hasNext(); ) {
Element item = (Element) i.next();
LinkedHashMap<String,LinkedHashMap<String,Object>> items = new LinkedHashMap<String,LinkedHashMap<String,Object>>();
boolean isSubElement = false;
for (Iterator it2 = item.elementIterator(); it2.hasNext(); ) {
Element subItem = (Element) it2.next();
LinkedHashMap<String,Object> itemObj = new LinkedHashMap<String,Object>();
itemObj.put("name",subItem.getName());
itemObj.put("text",subItem.getText());
LinkedHashMap<String,String> attributes = new LinkedHashMap<String,String>();
for (Iterator attr = subItem.attributeIterator(); attr.hasNext(); ) {
Attribute at = (Attribute) attr.next();
attributes.put(at.getName(),at.getText());
}
itemObj.put("attributes",attributes);
//log.error(subItem.getName()+ ": " +subItem.getText());
items.put(subItem.getName(), itemObj);
isSubElement=true;
}
if (isSubElement){
l++;
lMap.put("item"+l,items);
}
}
return lMap;
} catch (Exception err) {
log.error("[parseRssFeed]",err);
}
return null;
}
}