content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.pdftools;
  
  import org.opencms.file.CmsObject;
  import org.opencms.file.CmsResource;
  import org.opencms.jsp.util.CmsJspStandardContextBean;
  import org.opencms.loader.CmsTemplateLoaderFacade;
  import org.opencms.main.OpenCms;
  import org.opencms.xml.containerpage.CmsContainerElementBean;
  
  import java.util.Collections;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  /**
   * Utility class for PDF formatting.<p>
   */
  public final class CmsPdfFormatterUtils {
  
      /**
       * Private constructor to prevent instantiation.<p>
       */
      private CmsPdfFormatterUtils() {
  
          // do nothing
      }
  
      /**
       * Executes a JSP with a given content as input and returns the output of the JSP.<p>
       *
       * @param cms the current CMS context
       * @param request the current request
       * @param response the current response
       * @param jsp the jsp resource to execute
       * @param content the content to render with the JSP
       *
       * @return the output of the JSP
       * @throws Exception if something goes wrong
       */
      public static byte[] executeJsp(
          CmsObject cms,
          HttpServletRequest request,
          HttpServletResponse response,
          CmsResource jsp,
          CmsResource content) throws Exception {
  
          CmsTemplateLoaderFacade loaderFacade = new CmsTemplateLoaderFacade(
              OpenCms.getResourceManager().getLoader(jsp),
              content,
              jsp);
          CmsResource loaderRes = loaderFacade.getLoaderStartResource();
          request.setAttribute(CmsJspStandardContextBean.ATTRIBUTE_CMS_OBJECT, cms);
          CmsJspStandardContextBean context = CmsJspStandardContextBean.getInstance(request);
          CmsContainerElementBean element = new CmsContainerElementBean(
              content.getStructureId(),
              jsp.getStructureId(),
              Collections.<String, String> emptyMap(),
              false);
          context.setElement(element);
          return loaderFacade.getLoader().dump(
              cms,
              loaderRes,
              null,
              cms.getRequestContext().getLocale(),
              request,
              response);
      }
  
  }
  