//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package com.acme;
  
  import javax.servlet.DispatcherType;
  import javax.servlet.ServletContextAttributeEvent;
  import javax.servlet.ServletContextAttributeListener;
  import javax.servlet.ServletContextEvent;
  import javax.servlet.ServletContextListener;
  import javax.servlet.ServletRequestAttributeEvent;
  import javax.servlet.ServletRequestAttributeListener;
  import javax.servlet.ServletRequestEvent;
  import javax.servlet.ServletRequestListener;
  import javax.servlet.ServletRegistration;
  import javax.servlet.FilterRegistration;
  import javax.servlet.ServletSecurityElement;
  import javax.servlet.HttpConstraintElement;
  import javax.servlet.HttpMethodConstraintElement;
  import javax.servlet.annotation.ServletSecurity;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpSessionActivationListener;
  import javax.servlet.http.HttpSessionAttributeListener;
  import javax.servlet.http.HttpSessionBindingEvent;
  import javax.servlet.http.HttpSessionEvent;
  import javax.servlet.http.HttpSessionListener;
  
  import java.util.EnumSet;
  import java.util.Set;
  
  public class TestListener implements HttpSessionListener,  HttpSessionAttributeListener, HttpSessionActivationListener, ServletContextListener, ServletContextAttributeListener, ServletRequestListener, ServletRequestAttributeListener
  {
      public void attributeAdded(HttpSessionBindingEvent se)
      {
          // System.err.println("attributedAdded "+se);
      }
  
      public void attributeRemoved(HttpSessionBindingEvent se)
      {
          // System.err.println("attributeRemoved "+se);
      }
  
      public void attributeReplaced(HttpSessionBindingEvent se)
      {
          // System.err.println("attributeReplaced "+se);
      }
  
      public void sessionWillPassivate(HttpSessionEvent se)
      {
          // System.err.println("sessionWillPassivate "+se);
      }
  
      public void sessionDidActivate(HttpSessionEvent se)
      {
          // System.err.println("sessionDidActivate "+se);
      }
  
      public void contextInitialized(ServletContextEvent sce)
      {	
          //configure programmatic security
          ServletRegistration.Dynamic rego = sce.getServletContext().addServlet("RegoTest", RegTest.class.getName());
          rego.addMapping("/rego/*");
          HttpConstraintElement constraintElement = new HttpConstraintElement(ServletSecurity.EmptyRoleSemantic.PERMIT, 
                                                                              ServletSecurity.TransportGuarantee.NONE, new String[]{"admin"});
          ServletSecurityElement securityElement = new ServletSecurityElement(constraintElement, null);
          Set<String> unchanged = rego.setServletSecurity(securityElement);
          //System.err.println("Security constraints registered: "+unchanged.isEmpty());
  
          //Test that a security constraint from web.xml can't be overridden programmatically
          ServletRegistration.Dynamic rego2 = sce.getServletContext().addServlet("RegoTest2", RegTest.class.getName());
          rego2.addMapping("/rego2/*");
          securityElement = new ServletSecurityElement(constraintElement, null);
          unchanged = rego2.setServletSecurity(securityElement);
          //System.err.println("Overridding web.xml constraints not possible:" +!unchanged.isEmpty());
  
      	/* For servlet 3.0 */
      	FilterRegistration.Dynamic registration = sce.getServletContext().addFilter("TestFilter",TestFilter.class.getName());
          if (registration != null) //otherwise it was configured in web.xml
          {
      	    registration.setInitParameter("remote", "false");
      	    registration.setAsyncSupported(true);
      	    registration.addMappingForUrlPatterns(
      	        EnumSet.of(DispatcherType.ERROR,DispatcherType.ASYNC,DispatcherType.FORWARD,DispatcherType.INCLUDE,DispatcherType.REQUEST),
      	        true, 
     	        new String[]{"/*"});
         }
     }
 
     public void contextDestroyed(ServletContextEvent sce)
     {
         // System.err.println("contextDestroyed "+sce);
     }
 
     public void attributeAdded(ServletContextAttributeEvent scab)
     {
         // System.err.println("attributeAdded "+scab);
     }
 
     public void attributeRemoved(ServletContextAttributeEvent scab)
     {
         // System.err.println("attributeRemoved "+scab);
     }
 
     public void attributeReplaced(ServletContextAttributeEvent scab)
     {
         // System.err.println("attributeReplaced "+scab);
     }
 
     public void requestDestroyed(ServletRequestEvent sre)
     {
         ((HttpServletRequest)sre.getServletRequest()).getSession(false);
         sre.getServletRequest().setAttribute("requestInitialized",null);
         // System.err.println("requestDestroyed "+sre);
     }
 
     public void requestInitialized(ServletRequestEvent sre)
     {
         sre.getServletRequest().setAttribute("requestInitialized","'"+sre.getServletContext().getContextPath()+"'");
         // System.err.println("requestInitialized "+sre);
     }
 
     public void attributeAdded(ServletRequestAttributeEvent srae)
     {
         // System.err.println("attributeAdded "+srae);
     }
 
     public void attributeRemoved(ServletRequestAttributeEvent srae)
     {
         // System.err.println("attributeRemoved "+srae);
     }
 
     public void attributeReplaced(ServletRequestAttributeEvent srae)
     {
         // System.err.println("attributeReplaced "+srae);
     }
 
     public void sessionCreated(HttpSessionEvent se)
     {
         // System.err.println("sessionCreated "+se);
     }
 
     public void sessionDestroyed(HttpSessionEvent se)
     {
         // System.err.println("sessionDestroyed "+se);
     }
 
     public void requestCompleted(ServletRequestEvent rre)
     {
         // TODO Auto-generated method stub
         
     }
 
     public void requestResumed(ServletRequestEvent rre)
     {
         // TODO Auto-generated method stub
         
     }
 
     public void requestSuspended(ServletRequestEvent rre)
     {
         // TODO Auto-generated method stub
         
     }
 
 }