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package com.sun.enterprise.tools.admingui.servlet;
import com.sun.faces.config.ConfigureListener;
import java.io.IOException;
import javax.faces.webapp.FacesServlet;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.UnavailableException;
/**
* <p> This Servlet exists so that the Application server doesn't recognize
* it as the <code>FacesServlet</code>. This prevents it from loading
* our application at startup time and thus improves server startup
* performance.</p.
*/
public class DelayedInitFacesServlet implements Servlet {
private FacesServlet facesServlet;
private ConfigureListener listener;
private ServletContext sc;
public DelayedInitFacesServlet() {
facesServlet = new FacesServlet();
listener = new ConfigureListener();
}
public void init(ServletConfig servletConfig) throws ServletException {
sc = servletConfig.getServletContext();
try {
listener.contextInitialized(new ServletContextEvent(sc));
} catch (Exception ex) {
// Catch exceptions here so that we can provide a better
// exception which will show up in the browser.
ServletException wrap = new UnavailableException(
"Error initializing JSF: " + ex.getMessage());
wrap.initCause(ex);
throw wrap;
}
facesServlet.init(servletConfig);
}
public ServletConfig getServletConfig() {
return facesServlet.getServletConfig();
}
public void service(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
facesServlet.service(servletRequest, servletResponse);
}
public String getServletInfo() {
return facesServlet.getServletInfo();
}
public void destroy() {
facesServlet.destroy();
listener.contextDestroyed(new ServletContextEvent(sc));
}
}