Example usage for org.springframework.web.servlet HandlerInterceptor HandlerInterceptor

Introduction

In this page you can find the example usage for org.springframework.web.servlet HandlerInterceptor HandlerInterceptor.

Prototype

HandlerInterceptor

Source Link

Usage

From source file:com.nominanuda.springmvc.HandlerMatcherMapping.java

private HandlerInterceptor convert(final HandlerFilter f) {

    return new HandlerInterceptor() {
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
                throws Exception {
            HttpRequest req = servletHelper.getOrCreateRequest(request, true);
            DataStruct cmd = Check.ifNull(servletHelper.getCommand(request), DS.newObject());
            Object handlerOutput = f.before(req, cmd, handler);
            if (handlerOutput == null) {
                return true;
            } else {
                servletHelper.storeHandlerOutput(request, handlerOutput);
                getDispatcherServletHelper().renderHandlerOutput(request, response, handlerOutput);
                return false;
            }//from   w  w  w  . j av  a 2 s  .co  m
        }

        private DispatcherServletHelper getDispatcherServletHelper() {
            if (dispatcherServletHelper == null) {
                dispatcherServletHelper = new DispatcherServletHelper();
                dispatcherServletHelper.setApplicationContext(applicationContext);
                dispatcherServletHelper.init();
            }
            return dispatcherServletHelper;
        }

        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                ModelAndView modelAndView) throws Exception {
            f.after(servletHelper.getOrCreateRequest(request, true), servletHelper.getCommand(request), handler,
                    servletHelper.getHandlerOutput(request));
        }

        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
                Exception ex) throws Exception {
            f.afterCompletion(servletHelper.getOrCreateRequest(request, true),
                    servletHelper.getResponse(request), handler, servletHelper.getHandlerOutput(request), ex);
        }
    };
}

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From source file:org.jmxtrans.embedded.samples.cocktail.WebConfig.java

@Override
public void addInterceptors(InterceptorRegistry registry) {
    super.addInterceptors(registry);
    registry.addInterceptor(new HandlerInterceptor() {
        @Override//from   w  w w .  jav  a2  s. c o  m
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
                throws Exception {
            return true;
        }

        @Override
        public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
                ModelAndView modelAndView) throws Exception {
            ShoppingCart shoppingCart = shoppingCartRepository.getCurrentShoppingCart(request);
            request.setAttribute("shoppingCart", shoppingCart);
        }

        @Override
        public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
                Exception ex) throws Exception {
        }
    });
}

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