com.lc.storefront.interceptors.BeforeControllerHandlerInterceptor.java Source code

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Here is the source code for com.lc.storefront.interceptors.BeforeControllerHandlerInterceptor.java

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/*
 * [y] hybris Platform
 *
 * Copyright (c) 2000-2015 hybris AG
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of hybris
 * ("Confidential Information"). You shall not disclose such Confidential
 * Information and shall use it only in accordance with the terms of the
 * license agreement you entered into with hybris.
 *
 *
 */
package com.lc.storefront.interceptors;

import java.util.List;

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

import org.springframework.beans.factory.annotation.Required;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

/**
 * A postHandle HandlerInterceptor that runs a number of BeforeViewHandlers before the view is rendered.
 */
public class BeforeControllerHandlerInterceptor extends HandlerInterceptorAdapter
{
   private final String INTERCEPTOR_ONCE_KEY = BeforeControllerHandlerInterceptor.class.getName();

   private List<BeforeControllerHandler> beforeControllerHandlers;

   protected List<BeforeControllerHandler> getBeforeControllerHandlers()
   {
      return beforeControllerHandlers;
   }

   @Required
   public void setBeforeControllerHandlers(final List<BeforeControllerHandler> beforeControllerHandlers)
   {
      this.beforeControllerHandlers = beforeControllerHandlers;
   }

   @Override
   public boolean preHandle(final HttpServletRequest request, final HttpServletResponse response, final Object handler) throws Exception
   {
      if (request.getAttribute(INTERCEPTOR_ONCE_KEY) == null)
      {
         // Set the flag so that we are not executed multiple times
         request.setAttribute(INTERCEPTOR_ONCE_KEY, Boolean.TRUE);

         final HandlerMethod handlerMethod = (HandlerMethod) handler;

         // Call the pre handler once for the request
         for (final BeforeControllerHandler beforeControllerHandler : getBeforeControllerHandlers())
         {
            if (!beforeControllerHandler.beforeController(request, response, handlerMethod))
            {
               // Return false immediately if a handler returns false
               return false;
            }
         }
      }

      return true;
   }
}