Package org.gatein.wci.impl.generic

Source Code of org.gatein.wci.impl.generic.GenericServletContainerContext

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* copyright.txt in the distribution for a full listing of                    *
* individual contributors.                                                   *
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package org.gatein.wci.impl.generic;

import org.gatein.wci.RequestDispatchCallback;
import org.gatein.wci.api.GateInServletRegistrations;
import org.gatein.wci.authentication.GenericAuthentication;
import org.gatein.wci.impl.DefaultServletContainer;
import org.gatein.wci.impl.DefaultServletContainerFactory;
import org.gatein.wci.security.Credentials;
import org.gatein.wci.spi.ServletContainerContext;
import org.gatein.wci.spi.WebAppContext;
import org.gatein.wci.command.CommandDispatcher;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletContextListener;
import javax.servlet.ServletContextEvent;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.HashMap;

/**
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Revision: 1.1 $
*/
public class GenericServletContainerContext implements ServletContainerContext, ServletContextListener
{
   /** . */
   private static GenericServletContainerContext instance;

   private static HashMap<ServletContext, String> requestDispatchMap = new HashMap<ServletContext, String>();

   /** . */
   private GenericAuthentication authentication = new GenericAuthentication();
  
   public static GenericServletContainerContext getInstance()
   {
      return instance;
   }

   /** . */
   private Registration registration;

   public GenericServletContainerContext()
   {
   }

   /** . */

   public Object include(
      ServletContext targetServletContext,
      HttpServletRequest request,
      HttpServletResponse response,
      RequestDispatchCallback callback,
      Object handback) throws ServletException, IOException
   {
      String dispatcherPath = requestDispatchMap.get(targetServletContext);
      CommandDispatcher dispatcher = new CommandDispatcher(dispatcherPath);
     
      return dispatcher.include(targetServletContext, request, response, callback, handback);
   }

   public void setCallback(Registration registration)
   {
      this.registration = registration;
      GateInServletRegistrations.setServletContainerContext(this);
   }

   public void unsetCallback(Registration registration)
   {
      this.registration = null;
   }

   public void login(HttpServletRequest request, HttpServletResponse response, Credentials credentials, long validityMillis) throws IOException
   {
      authentication.login(credentials, request, response, validityMillis);
   }

   public void login(HttpServletRequest request, HttpServletResponse response, Credentials credentials, long validityMillis, String initialURI) throws IOException
   {
      authentication.login(credentials, request, response, validityMillis, initialURI);
   }

   public void logout(HttpServletRequest request, HttpServletResponse response) throws ServletException
   {
      authentication.logout(request, response);
   }

   public String getContainerInfo()
   {
      return "Generic";
   }

   //

   public void contextInitialized(ServletContextEvent servletContextEvent)
   {
      if (instance != null)
      {
         throw new IllegalStateException("Shared instance singleton already created");
      }

      //
      instance = this;

      // Register
      DefaultServletContainerFactory.registerContext(this);
   }

   public void contextDestroyed(ServletContextEvent servletContextEvent)
   {
      // Should we really do something ?
   }

   @Override
   public void registerWebApp(WebAppContext webappContext, String dispatcherPath)
   {
      requestDispatchMap.put(webappContext.getServletContext(), dispatcherPath);
      instance.registration.registerWebApp(webappContext);
   }

   @Override
   public void unregisterWebApp(ServletContext servletContext)
   {
      requestDispatchMap.remove(servletContext);
      instance.registration.unregisterWebApp(servletContext.getContextPath());
   }
}
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