UserCounterController.java |
package org.appfuse.webapp.action; import java.io.IOException; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.tiles.ComponentContext; import org.apache.struts.tiles.ControllerSupport; import org.appfuse.webapp.listener.UserCounterListener; /** * UserCounterController class. This class is used to display the * number of current users on a particular tile (JSP page). * * <p> * <a href="UserCounterController.java.html"><i>View Source</i></a> * </p> * * @author <a href="mailto:[email protected]">Matt Raible</a> * @version $Revision: 1.4 $ $Date: 2004/03/31 13:04:24 $ */ public final class UserCounterController extends ControllerSupport { //~ Methods ================================================================ /** * This method illustrates a simple example of using a Tiles Controller * to get a "current users" counter for this application. * * @param tilesContext Current tile context * @param request Current request * @param response Current response * @param servletContext Current Servlet Context * * @throws ServletException DOCUMENT ME! * @throws IOException DOCUMENT ME! */ public void execute(ComponentContext tilesContext, HttpServletRequest request, HttpServletResponse response, ServletContext servletContext) throws ServletException, IOException { // Get the number of current users from the application's context String userCounter = (String) servletContext.getAttribute(UserCounterListener.COUNT_KEY); // Add this number to the request for display request.setAttribute(UserCounterListener.COUNT_KEY, userCounter); } }
UserCounterController.java |