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

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

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/*
 * [y] hybris Platform
 *
 * Copyright (c) 2000-2013 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.acc.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;
    }
}