import java.util.regex.*;
server = "brutus.apache.org";
user = "mrdon";
prompt = ":~$";
localRssPath = "";
remoteRssPath = "http://myserver.com/feeds/";
remoteLogPath = "/usr/local/tomcat/tomcat-confluence/logs/catalina.out";

conn.connect(server, user);
conn.setTimeout(20000);
conn.waitFor(prompt);
conn.sendLine("tail -n 5000 "+remoteLogPath);

entries = new ArrayList();
entry = "";
id = conn.waitForMux(new String[]{"ERROR", prompt});
while (id == 0) {
    id = conn.waitForMux(new String[]{"\r\n", prompt});
    if (id == 0) {
		line = conn.lastLine();
		if (line.contains("WARN") || line.contains("DEBUG") || line.contains("INFO")) {
			if (entry != null) {
				entries.add(entry);
				entry = null;
			}
            continue;
        }    
		if (line.contains("ERROR")) {
			entry = line;
		} else if (entry != null) {
		    entry += "\n"+line;
        }
    } 
}

Collections.reverse(entries);
out = new FileWriter(localRssPath+server+".xml");
rss = new PrintWriter(out);

rss.println("<?xml version=\"1.0\" encoding=\"ISO-8859-1\" ?>");
rss.println("<rss version=\"2.0\">");

rss.println("<channel>");
    rss.println("<title>"+server+" log errors</title>");
    rss.println("<link>"+remoteRssPath+server+".xml</link>");
    rss.println("<description>"+server+" Tomcat Log errors</description>");

for (x=0; x<entries.size() && x<20; x++) {
    entry = entries.get(x);
    fout = new FileWriter(localRssPath+x+".txt");
    fout.write(entry);
    fout.close();
    entry = entry.replaceAll("&", "&amp;");
    entry = entry.replaceAll("<", "&lt;");
    entry = entry.replaceAll(">", "&gt;");
    entry = entry.replaceAll("\n", "<br />");
    
    firstLine = entry;
    if (entry.contains("<br />")) {
        firstLine = entry.substring(0, entry.indexOf("<br />"));
    }
    
    rss.println("<item>");
    rss.println("<title>"+firstLine+"</title>");
    rss.println("<link>"+remoteRssPath+x+".txt</link>");
    rss.println("<description><![CDATA[");
    rss.println(entry);
    rss.println("]]></description>");
    rss.println("</item>"); 
}       

rss.println("</channel>");
rss.println("</rss>");

rss.close();
conn.disconnect();