Java tutorial
/* * Copyright (c) 2002-2011, Mairie de Paris * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright notice * and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice * and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * License 1.0 */ package fr.paris.lutece.plugins.plu.web; import fr.paris.lutece.portal.business.style.PageTemplate; import fr.paris.lutece.portal.business.style.PageTemplateHome; import fr.paris.lutece.portal.service.fileupload.FileUploadService; import fr.paris.lutece.portal.service.message.AdminMessage; import fr.paris.lutece.portal.service.message.AdminMessageService; import fr.paris.lutece.portal.service.template.AppTemplateService; import fr.paris.lutece.portal.service.util.AppException; import fr.paris.lutece.portal.service.util.AppLogService; import fr.paris.lutece.portal.service.util.AppPathService; import fr.paris.lutece.portal.service.util.AppPropertiesService; import fr.paris.lutece.portal.web.admin.AdminFeaturesPageJspBean; import fr.paris.lutece.portal.web.constants.Messages; import fr.paris.lutece.portal.web.constants.Parameters; import fr.paris.lutece.portal.web.upload.MultipartHttpServletRequest; import fr.paris.lutece.util.html.HtmlTemplate; import fr.paris.lutece.util.url.UrlItem; import org.apache.commons.fileupload.FileItem; import org.apache.commons.io.IOUtils; //import com.oreilly.servlet.MultipartRequest; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.HashMap; import javax.servlet.http.HttpServletRequest; /** * This class provides the user interface to manage page templates features ( manage, create, modify, remove) */ public class PageTemplatesJspBean extends AdminFeaturesPageJspBean { /** Right */ public static final String RIGHT_MANAGE_PAGE_TEMPLATES = "CORE_PAGE_TEMPLATE_MANAGEMENT"; /** Properties for page titles */ private static final String PROPERTY_PAGE_TITLE_PAGE_TEMPLATE_LIST = "portal.style.manage_page_templates.pageTitle"; private static final String PROPERTY_PAGE_TITLE_CREATE_PAGE_TEMPLATE = "portal.style.create_page_template.pageTitle"; private static final String PROPERTY_PAGE_TITLE_MODIFY_PAGE_TEMPLATE = "portal.style.modify_page_template.pageTitle"; /** Markers */ private static final String MARK_PAGE_TEMPLATES_LIST = "page_templates_list"; private static final String MARK_PAGE_TEMPLATE = "page_template"; /** Templates files path */ private static final String TEMPLATE_PAGE_TEMPLATES = "admin/style/manage_page_templates.html"; private static final String TEMPLATE_CREATE_PAGE_TEMPLATE = "admin/style/create_page_template.html"; private static final String TEMPLATE_MODIFY_PAGE_TEMPLATE = "admin/style/modify_page_template.html"; /** Properties */ private static final String PROPERTY_PATH_TEMPLATE = "path.templates"; private static final String PROPERTY_PATH_FILE_PAGE_TEMPLATE = "path.file.page.template"; private static final String PROPERTY_PATH_IMAGE_PAGE_TEMPLATE = "path.image.page.template"; /** Messages */ private static final String MESSAGE_CONFIRM_DELETE_PAGE_TEMPLATE = "portal.style.message.pageTemplateConfirmDelete"; private static final String MESSAGE_PAGE_TEMPLATE_IS_USED = "portal.style.message.pageTemplateIsUsed"; /** Parameters */ private static final String PARAMETER_PAGE_TEMPLATE_FILE = "page_template_file"; private static final String PARAMETER_PAGE_TEMPLATE_PICTURE = "page_template_picture"; private static final String PARAMETER_PAGE_TEMPLATE_UPDATE_IMAGE = "update_image"; private static final String PARAMETER_PAGE_TEMPLATE_UPDATE_FILE = "update_file"; private static final String strPathImagePageTemplate = AppPathService.getPath(PROPERTY_PATH_IMAGE_PAGE_TEMPLATE) + File.separator; private static final String strPathFilePageTemplate = AppPathService.getPath(PROPERTY_PATH_TEMPLATE) + File.separator + AppPropertiesService.getProperty(PROPERTY_PATH_FILE_PAGE_TEMPLATE); /** JSP */ private static final String JSP_DO_REMOVE_PAGE_TEMPLATE = "jsp/admin/style/DoRemovePageTemplate.jsp"; /** * Returns the list of page templates * * @param request The Http request * @return the html code for display the page templates list */ public String getManagePageTemplate(HttpServletRequest request) { setPageTitleProperty(PROPERTY_PAGE_TITLE_PAGE_TEMPLATE_LIST); HashMap<String, Object> model = new HashMap<String, Object>(); model.put(MARK_PAGE_TEMPLATES_LIST, PageTemplateHome.getPageTemplatesList()); HtmlTemplate template = AppTemplateService.getTemplate(TEMPLATE_PAGE_TEMPLATES, getLocale(), model); return getAdminPage(template.getHtml()); } /** * Returns the page template form of creation * * @param request The Http request * @return the html code of the page template */ public String getCreatePageTemplate(HttpServletRequest request) { setPageTitleProperty(PROPERTY_PAGE_TITLE_CREATE_PAGE_TEMPLATE); HtmlTemplate template = AppTemplateService.getTemplate(TEMPLATE_CREATE_PAGE_TEMPLATE, getLocale()); return getAdminPage(template.getHtml()); } /** * Processes the creation form of a new page template by recovering the parameters in the http request * * @param request the http request * @return The Jsp URL of the process result */ public String doCreatePageTemplate(HttpServletRequest request) { PageTemplate pageTemplate = new PageTemplate(); MultipartHttpServletRequest multipartRequest = null; if (request instanceof MultipartHttpServletRequest) { multipartRequest = (MultipartHttpServletRequest) request; } else { throw new AppException( "Request cannont be cast in MultipartHttpServletRequest in doCretaePageTemplate"); } String strDescription = multipartRequest.getParameter(Parameters.PAGE_TEMPLATE_DESCRIPTION); //Mandatory fields if (strDescription.equals("")) { return AdminMessageService.getMessageUrl(request, Messages.MANDATORY_FIELDS, AdminMessage.TYPE_STOP); } FileItem fileTemplate = multipartRequest.getFile(PARAMETER_PAGE_TEMPLATE_FILE); FileItem filePicture = multipartRequest.getFile(PARAMETER_PAGE_TEMPLATE_PICTURE); String strFileName = FileUploadService.getFileNameOnly(fileTemplate); String strPictureName = FileUploadService.getFileNameOnly(filePicture); if (strFileName.equals("") || strPictureName.equals("")) { return AdminMessageService.getMessageUrl(request, Messages.MANDATORY_FILE, AdminMessage.TYPE_STOP); } else { pageTemplate.setFile(AppPropertiesService.getProperty(PROPERTY_PATH_FILE_PAGE_TEMPLATE) + strFileName); writeTemplateFile(strFileName, strPathFilePageTemplate, fileTemplate); pageTemplate.setPicture(strPictureName); writeTemplateFile(strPictureName, strPathImagePageTemplate, filePicture); } pageTemplate.setDescription(strDescription); PageTemplateHome.create(pageTemplate); // If the process is successfull, redirects towards the theme view return getHomeUrl(request); } /** * Returns the page template form of update * * @param request The Http request * @return the html code of the page template form */ public String getModifyPageTemplate(HttpServletRequest request) { setPageTitleProperty(PROPERTY_PAGE_TITLE_MODIFY_PAGE_TEMPLATE); String strId = request.getParameter(Parameters.PAGE_TEMPLATE_ID); HashMap<String, Object> model = new HashMap<String, Object>(); model.put(MARK_PAGE_TEMPLATE, PageTemplateHome.findByPrimaryKey(Integer.parseInt(strId))); HtmlTemplate template = AppTemplateService.getTemplate(TEMPLATE_MODIFY_PAGE_TEMPLATE, getLocale(), model); return getAdminPage(template.getHtml()); } /** * Processes the updating form of a page template whose new parameters are stored in the http request * * @param request The http request * @return The Jsp URL of the process result */ public String doModifyPageTemplate(HttpServletRequest request) { MultipartHttpServletRequest multipartRequest = null; if (request instanceof MultipartHttpServletRequest) { multipartRequest = (MultipartHttpServletRequest) request; } else { throw new AppException( "Request cannont be cast in MultipartHttpServletRequest in doCretaePageTemplate"); } String strId = multipartRequest.getParameter(Parameters.PAGE_TEMPLATE_ID); String strDescription = multipartRequest.getParameter(Parameters.PAGE_TEMPLATE_DESCRIPTION); String strUpdatePicture = multipartRequest.getParameter(PARAMETER_PAGE_TEMPLATE_UPDATE_IMAGE); String strUpdateFile = multipartRequest.getParameter(PARAMETER_PAGE_TEMPLATE_UPDATE_FILE); //Mandatory fields if (strDescription.equals("")) { return AdminMessageService.getMessageUrl(request, Messages.MANDATORY_FIELDS, AdminMessage.TYPE_STOP); } PageTemplate pageTemplate = PageTemplateHome.findByPrimaryKey(Integer.parseInt(strId)); boolean bUpdateFile = false; boolean bUpdatePicture = false; FileItem fileTemplate = multipartRequest.getFile(PARAMETER_PAGE_TEMPLATE_FILE); String strFileName = FileUploadService.getFileNameOnly(fileTemplate); FileItem filePicture = multipartRequest.getFile(PARAMETER_PAGE_TEMPLATE_PICTURE); String strPictureName = FileUploadService.getFileNameOnly(filePicture); if (strUpdateFile != null) { if (strFileName.equals("")) { return AdminMessageService.getMessageUrl(request, Messages.MANDATORY_FILE, AdminMessage.TYPE_STOP); } else { bUpdateFile = true; } } if (strUpdatePicture != null) { if (strPictureName.equals("")) { return AdminMessageService.getMessageUrl(request, Messages.MANDATORY_FILE, AdminMessage.TYPE_STOP); } else { bUpdatePicture = true; } } if (bUpdateFile) { if (!new File(AppPathService.getPath(PROPERTY_PATH_TEMPLATE) + File.separator + pageTemplate.getFile()) .delete()) { throw new AppException("An error occured when trying to delete file"); } pageTemplate.setFile(AppPropertiesService.getProperty(PROPERTY_PATH_FILE_PAGE_TEMPLATE) + strFileName); writeTemplateFile(strFileName, strPathFilePageTemplate, fileTemplate); } if (bUpdatePicture) { if (!new File(strPathImagePageTemplate, pageTemplate.getPicture()).delete()) { throw new AppException("An error occured when trying to delete file"); } pageTemplate.setPicture(strPictureName); writeTemplateFile(strPictureName, strPathImagePageTemplate, filePicture); } pageTemplate.setDescription(strDescription); PageTemplateHome.update(pageTemplate); // If the process is successfull, redirects towards the page template management page return getHomeUrl(request); } /** * Returns the confirm of removing the page_template whose identifier is in * the http request * @param request The Http request * @return the html code for the remove confirmation page */ public String getConfirmRemovePageTemplate(HttpServletRequest request) { String strId = request.getParameter(Parameters.PAGE_TEMPLATE_ID); int nId = Integer.parseInt(strId); boolean bIsUsed = PageTemplateHome.checkStylePageTemplateIsUsed(nId); if (!bIsUsed) { return AdminMessageService.getMessageUrl(request, MESSAGE_PAGE_TEMPLATE_IS_USED, AdminMessage.TYPE_STOP); } PageTemplate pageTemplate = PageTemplateHome.findByPrimaryKey(Integer.parseInt(strId)); String strPathPageTemplateFile = AppPathService.getPath(PROPERTY_PATH_TEMPLATE) + File.separator + pageTemplate.getFile(); String strPathPictureFile = strPathImagePageTemplate + pageTemplate.getPicture(); Object[] args = { strPathPageTemplateFile, strPathPictureFile }; UrlItem url = new UrlItem(JSP_DO_REMOVE_PAGE_TEMPLATE); url.addParameter(Parameters.PAGE_TEMPLATE_ID, nId); return AdminMessageService.getMessageUrl(request, MESSAGE_CONFIRM_DELETE_PAGE_TEMPLATE, args, url.getUrl(), AdminMessage.TYPE_CONFIRMATION); } /** * Processes the deletion of a page template * @param request the http request * @return The Jsp URL of the process result */ public String doRemovePageTemplate(HttpServletRequest request) { String strId = request.getParameter(Parameters.PAGE_TEMPLATE_ID); int nId = Integer.parseInt(strId); // Delete files associated PageTemplate pageTemplate = PageTemplateHome.findByPrimaryKey(Integer.parseInt(strId)); File filePageTemplateToDelete = new File(AppPathService.getPath(PROPERTY_PATH_TEMPLATE), pageTemplate.getFile()); if ((filePageTemplateToDelete != null) && filePageTemplateToDelete.exists()) { if (!filePageTemplateToDelete.delete()) { throw new AppException("An error occured when trying to delete file"); } } File filePictureToDelete = new File(strPathImagePageTemplate, pageTemplate.getPicture()); if ((filePictureToDelete != null) && filePictureToDelete.exists()) { if (!filePictureToDelete.delete()) { throw new AppException("An error occured when trying to delete file"); } } PageTemplateHome.remove(nId); return getHomeUrl(request); } ////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // private methods /** * Write the templates files (html and image) * * @param strFileName The name of the file * @param strPath The path of the file * @param fileItem The fileItem object which contains the new file */ private void writeTemplateFile(String strFileName, String strPath, FileItem fileItem) { FileOutputStream fosFile = null; try { File file = new File(strPath + strFileName); if (file.exists()) { if (!file.delete()) { throw new AppException("An error occured when trying to delete file"); } } fosFile = new FileOutputStream(file); fosFile.flush(); fosFile.write(fileItem.get()); } catch (IOException e) { AppLogService.error(e.getMessage(), e); } finally { IOUtils.closeQuietly(fosFile); } } }