/**
 * This file Copyright (c) 2010-2013 Magnolia International
 * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the Magnolia
 * Network Agreement and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or MNA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Magnolia Network Agreement (MNA), this file
 * and the accompanying materials are made available under the
 * terms of the MNA which accompanies this distribution, and
 * is available at http://www.magnolia-cms.com/mna.html
 *
 * Any modifications to this file must keep this entire header
 * intact.
 *
 */
package info.magnolia.module.blossom.support;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

import org.springframework.web.util.WebUtils;

/**
 * Request wrapper that makes the request appear like an include.
 *
 * @since 1.2
 */
public class IncludeRequestWrapper extends SpecialAttributeRequestWrapper {

    public IncludeRequestWrapper(HttpServletRequest request, String requestUri, String contextPath, String servletPath, Object pathInfo, String queryString) {
        super(request);
        setSpecialAttribute(WebUtils.INCLUDE_REQUEST_URI_ATTRIBUTE, requestUri);
        setSpecialAttribute(WebUtils.INCLUDE_CONTEXT_PATH_ATTRIBUTE, contextPath);
        setSpecialAttribute(WebUtils.INCLUDE_SERVLET_PATH_ATTRIBUTE, servletPath);
        setSpecialAttribute(WebUtils.INCLUDE_PATH_INFO_ATTRIBUTE, pathInfo);
        setSpecialAttribute(WebUtils.INCLUDE_QUERY_STRING_ATTRIBUTE, queryString);
    }

    @Override
    public RequestDispatcher getRequestDispatcher(final String path) {

        if (!isEnabled()) {
            return super.getRequestDispatcher(path);
        }

        final RequestDispatcher dispatcher = super.getRequestDispatcher(path);

        return new RequestDispatcher() {

            @Override
            public void forward(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
                dispatcher.forward(servletRequest, servletResponse);
            }

            @Override
            public void include(ServletRequest servletRequest, ServletResponse servletResponse) throws ServletException, IOException {
                setEnabled(false);
                dispatcher.include(servletRequest, servletResponse);
                setEnabled(true);
            }
        };
    }
}