How to output custom content like print from an agent

http://www.wissel.net/blog/d6plinks/SHWL-7MGFBN

// The external context gives access to the servlet environment
var exCon = facesContext.getExternalContext(); 

// The writer is the closest you get to a PRINT statement
// If you need to output binary data, use the stream instead
var writer = facesContext.getResponseWriter();

// The servlet's response, check the J2EE documentation what you can do
var response = exCon.getResponse();

// In this example we want to deliver xml and make sure it doesn't get cached
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");

// Here all your output will be written
writer.write("<?xml version="1.0" encoding="UTF-8"?>n<christmas date"24Dec" />");

// We tell the writer we are through
writer.endDocument();
facesContext.responseComplete();

response.setHeader("Cache-Control", "no-cache");

var now = new Date(); 
response.setDateHeader("Expires", now.getTime() + (30*24*60*60*1000)); 
response.setHeader("Cache-Control", "public");