servletactioncontext.java

来自「webwork source」· Java 代码 · 共 129 行

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.action;

import java.util.Map;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import webwork.action.factory.ApplicationMap;
import webwork.action.factory.ParameterMap;
import webwork.action.factory.SessionMap;
import webwork.multipart.MultiPartRequestWrapper;
import webwork.util.ServletValueStack;

/**
 * A context used to store servlet specific information.
 * 
 * @see webwork.action.ActionContext
 *
 * @author Maurice C. Parker ([e-mail])
 * @version $Revision: 2 $
 */
public class ServletActionContext
{
   public static final String REQUEST = "webwork.action.ServletContext.request";
   public static final String RESPONSE = "webwork.action.ServletContext.response";
   public static final String SERVLET_CONTEXT = "webwork.action.ServletContext.servletContext";
   
   /**
    * Returns the HttpServletRequest object.
    *
    * @return HttpServletRequest 
    */
   public static HttpServletRequest getRequest()
   {
   	return ActionContext.getRequest();
   }

   /**
    * Return multipart request for HttpServletRequest.
    *
    * @return MultiPartRequestWrapper
    */
   // add wrapRequest code here and throw IOException!!!
   public static MultiPartRequestWrapper getMultiPartRequest()
   {
   	return ActionContext.getMultiPartRequest();
   }

   /**
    * Set the HttpServletRequest.
    */
   public static void setRequest(HttpServletRequest request)
   {
   	ActionContext.setRequest(request);
   }

   /**
    * Returns the HttpServletResponse.
    *
    * @return HttpServletResponse
    */
   public static HttpServletResponse getResponse()
   {
   	return ActionContext.getResponse();
   }

   /**
    * Set the HttpServletResponse.
    */
   public static void setResponse(HttpServletResponse response)
   {
   	ActionContext.setResponse(response);
   }

   /**
    * Returns the ServletContext when in a servlet environment.
    *
    * @return ServletContext or null.
    */
   public static ServletContext getServletContext()
   {
   	return ActionContext.getServletContext();
   }

   /**
    * Set the ServletContext.
    */
   public static void setServletContext(ServletContext context)
   {
   	ActionContext.setServletContext(context);
   }
  
   /**
    * Set the ServletContext.
    */
   public static void setContext(HttpServletRequest request, 
                                    HttpServletResponse response, 
                                    ServletContext servletContext,
                                    String actionName)
   {
      ActionContext context = ActionContext.getContext();
      context.setNameImpl(actionName);
      context.setLocaleImpl(request.getLocale());
      context.setSessionImpl(new SessionMap(request.getSession()));
      context.setApplicationImpl(new ApplicationMap(servletContext));
      Map parameters = new ParameterMap(request);
      context.setParametersImpl(parameters);
      context.setSingleValueParametersImpl(new SingleValueMap(parameters));
      context.setPrincipalImpl(request.getUserPrincipal());

      context.setRequestImpl(request);
      context.setResponseImpl(response);
      context.setServletContextImpl(servletContext);
      
      // Servlets need a ServletValueStack that has the request and page context set
      // This is created here
      ServletValueStack vs = ServletValueStack.getStack(request);
      context.setValueStackImpl(vs);
   }
  
}