Java tutorial
package org.focusns.web.page.interceptor; /* * #%L * FocusSNS Web * %% * Copyright (C) 2011 - 2013 FocusSNS * %% * This program 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 program 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 General Lesser Public License for more details. * * You should have received a copy of the GNU General Lesser Public * License along with this program. If not, see * <http://www.gnu.org/licenses/lgpl-2.1.html>. * #L% */ import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.focusns.common.web.WebUtils; import org.focusns.common.web.page.engine.PageRenderInterceptor; import org.focusns.model.core.Project; import org.focusns.model.core.ProjectCategory; import org.focusns.model.core.ProjectFeature; import org.focusns.service.core.ProjectCategoryService; import org.focusns.service.core.ProjectFeatureService; import org.focusns.service.core.ProjectService; import org.focusns.web.Keys; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.util.StringUtils; import org.springframework.web.util.UrlPathHelper; public class PageRenderParameterResolver implements PageRenderInterceptor, ApplicationContextAware { private static final UrlPathHelper urlPathHelper = new UrlPathHelper(); private ApplicationContext applicationContext; @Override public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { this.applicationContext = applicationContext; } @Override public boolean beforeRender(HttpServletRequest request, HttpServletResponse response) { // Map<String, String> parameterMap = WebUtils.getMatrixParameters(request); String lookupPath = urlPathHelper.getLookupPathForRequest(request); // String projectCode = parameterMap.get(Keys.PARAMETER_PROJECT_CODE); if (StringUtils.hasText(projectCode)) { // ProjectService projectService = applicationContext.getBean(ProjectService.class); ProjectCategoryService projectCategoryService = applicationContext .getBean(ProjectCategoryService.class); ProjectFeatureService projectFeatureService = applicationContext.getBean(ProjectFeatureService.class); // Project project = projectService.getProject(projectCode); ProjectCategory projectCategory = projectCategoryService.getCategory(project.getCategoryId()); // request.setAttribute(Keys.REQUEST_PROJECT, project); request.setAttribute(Keys.REQUEST_PROJECT_CATEGORY, projectCategory); // List<ProjectFeature> projectFeatures = projectFeatureService.getProjectFeatures(project.getId()); for (ProjectFeature projectFeature : projectFeatures) { if (lookupPath.contains(projectFeature.getCode())) { request.setAttribute(Keys.REQUEST_PROJECT_FEATURE, projectFeature); break; } } } // Object projectUser = request.getSession().getAttribute(Keys.SESSION_PROJECT_USER); if (projectUser != null) { request.setAttribute(Keys.REQUEST_PROJECT_USER, projectUser); } // return true; } @Override public void afterRender(HttpServletRequest request, HttpServletResponse response) { } }