package nabble.view.web.util;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


public final class JsHolder extends HttpServlet {

	protected void service(HttpServletRequest request,HttpServletResponse response)
		throws ServletException, IOException
	{
		response.setHeader("Content-Type","application/x-javascript");
		response.setHeader("Cache-Control","no-cache");
		response.setHeader("Cache-Control","no-store");
		response.setHeader("Cache-Control","max-age=0");
		HttpSession session = request.getSession();
		String key = "js-" + request.getParameter("key");
		String js = request.getParameter("js");
		if( js != null ) {
			session.setAttribute(key,js);
			return;
		}
		js = (String)session.getAttribute(key);
		if( js==null )
			return;
		PrintWriter out = response.getWriter();
		out.print(js);
	}

}