Java tutorial
/** * Most of the code in the Qalingo project is copyrighted Hoteia and licensed * under the Apache License Version 2.0 (release version 0.8.0) * http://www.apache.org/licenses/LICENSE-2.0 * * Copyright (c) Hoteia, 2012-2014 * http://www.hoteia.com - http://twitter.com/hoteia - contact@hoteia.com * */ package org.hoteia.qalingo.web.mvc.controller.user; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.validation.Valid; import org.apache.commons.lang.StringUtils; import org.hoteia.qalingo.core.Constants; import org.hoteia.qalingo.core.ModelConstants; import org.hoteia.qalingo.core.RequestConstants; import org.hoteia.qalingo.core.domain.MarketArea; import org.hoteia.qalingo.core.domain.User; import org.hoteia.qalingo.core.domain.enumtype.BoUrls; import org.hoteia.qalingo.core.web.mvc.controller.AbstractBackofficeQalingoController; import org.hoteia.qalingo.core.web.mvc.form.UserForm; import org.hoteia.qalingo.core.web.mvc.viewbean.UserViewBean; import org.hoteia.qalingo.core.web.resolver.RequestData; import org.hoteia.qalingo.core.web.servlet.ModelAndViewThemeDevice; import org.hoteia.qalingo.core.web.servlet.view.RedirectView; import org.springframework.beans.support.PagedListHolder; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; /** * User details */ @Controller("userController") public class UserController extends AbstractBackofficeQalingoController { @RequestMapping(value = BoUrls.USER_LIST_URL, method = RequestMethod.GET) public ModelAndView userList(final HttpServletRequest request, final Model model) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.USER_LIST.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); final MarketArea marketArea = requestData.getMarketArea(); displayList(request, model, requestData); Object[] params = { marketArea.getName() + " (" + marketArea.getCode() + ")" }; overrideDefaultMainContentTitle(request, modelAndView, BoUrls.USER_LIST.getKey() + "", params); return modelAndView; } @RequestMapping(value = BoUrls.USER_DETAILS_URL, method = RequestMethod.GET) public ModelAndView userDetails(final HttpServletRequest request, final Model model) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.USER_DETAILS.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); final String userCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_USER_CODE); final User user = userService.getUserByCode(userCode); UserViewBean userViewBean = backofficeViewBeanFactory.buildViewBeanUser(requestData, user); if (userViewBean == null) { final String url = requestUtil.getLastRequestUrl(request); return new ModelAndView(new RedirectView(url)); } model.addAttribute(ModelConstants.URL_BACK, backofficeUrlService.generateUrl(BoUrls.USER_LIST, requestData)); request.setAttribute(ModelConstants.USER_VIEW_BEAN, userViewBean); Object[] params = { user.getLastname() + " " + user.getFirstname() + " (" + user.getLogin() + ")" }; overrideDefaultMainContentTitle(request, modelAndView, BoUrls.USER_DETAILS.getKey(), params); return modelAndView; } @RequestMapping(value = BoUrls.USER_EDIT_URL, method = RequestMethod.GET) public ModelAndView userEdit(final HttpServletRequest request, final Model model, @ModelAttribute(ModelConstants.USER_FORM) UserForm userForm) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.USER_EDIT.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); final String userCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_USER_CODE); final User user = userService.getUserByCode(userCode); UserViewBean userViewBean = backofficeViewBeanFactory.buildViewBeanUser(requestData, user); if (userViewBean == null) { final String url = requestUtil.getLastRequestUrl(request); return new ModelAndView(new RedirectView(url)); } model.addAttribute(ModelConstants.URL_BACK, backofficeUrlService.generateUrl(BoUrls.USER_DETAILS, requestData, user)); request.setAttribute(ModelConstants.USER_VIEW_BEAN, userViewBean); Object[] params = { user.getLastname() + " " + user.getFirstname() + " (" + user.getLogin() + ")" }; overrideDefaultMainContentTitle(request, modelAndView, BoUrls.USER_DETAILS.getKey(), params); return modelAndView; } @RequestMapping(value = BoUrls.USER_EDIT_URL, method = RequestMethod.POST) public ModelAndView submitUserEdit(final HttpServletRequest request, @Valid @ModelAttribute(ModelConstants.USER_FORM) UserForm userForm, BindingResult result, final Model model) throws Exception { if (result.hasErrors()) { return userEdit(request, model, userForm); } final String userCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_USER_CODE); final User user = userService.getUserByCode(userCode); // Update the user webBackofficeService.createOrUpdateUser(user, userForm); final String urlRedirect = backofficeUrlService.generateUrl(BoUrls.USER_DETAILS, requestUtil.getRequestData(request), user); return new ModelAndView(new RedirectView(urlRedirect)); } /** * */ @ModelAttribute(ModelConstants.USER_FORM) protected UserForm initUserForm(final HttpServletRequest request, final Model model) throws Exception { final RequestData requestData = requestUtil.getRequestData(request); final String userCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_USER_CODE); if (StringUtils.isNotEmpty(userCode)) { final User userEdit = userService.getUserByCode(userCode); return backofficeFormFactory.buildUserForm(requestData, userEdit); } return backofficeFormFactory.buildUserForm(requestData, null); } protected void displayList(final HttpServletRequest request, final Model model, final RequestData requestData) throws Exception { String url = request.getRequestURI(); String page = request.getParameter(Constants.PAGINATION_PAGE_PARAMETER); String sessionKey = "PagedListHolder_Users"; PagedListHolder<UserViewBean> userViewBeanPagedListHolder = new PagedListHolder<UserViewBean>(); if (StringUtils.isEmpty(page)) { userViewBeanPagedListHolder = initList(request, sessionKey, requestData); } else { userViewBeanPagedListHolder = (PagedListHolder) request.getSession().getAttribute(sessionKey); if (userViewBeanPagedListHolder == null) { userViewBeanPagedListHolder = initList(request, sessionKey, requestData); } int pageTarget = new Integer(page).intValue() - 1; int pageCurrent = userViewBeanPagedListHolder.getPage(); if (pageCurrent < pageTarget) { for (int i = pageCurrent; i < pageTarget; i++) { userViewBeanPagedListHolder.nextPage(); } } else if (pageCurrent > pageTarget) { for (int i = pageTarget; i < pageCurrent; i++) { userViewBeanPagedListHolder.previousPage(); } } } model.addAttribute(Constants.PAGINATION_PAGE_URL, url); model.addAttribute(Constants.PAGINATION_PAGE_PAGED_LIST_HOLDER, userViewBeanPagedListHolder); } protected PagedListHolder<UserViewBean> initList(final HttpServletRequest request, String sessionKey, final RequestData requestData) throws Exception { final MarketArea marketArea = requestData.getMarketArea(); List<User> users = userService.findUsers(); PagedListHolder<UserViewBean> userViewBeanPagedListHolder = new PagedListHolder<UserViewBean>(); final List<UserViewBean> userViewBeans = new ArrayList<UserViewBean>(); for (Iterator<User> iterator = users.iterator(); iterator.hasNext();) { User userIt = (User) iterator.next(); userViewBeans.add(backofficeViewBeanFactory.buildViewBeanUser(requestData, userIt)); } userViewBeanPagedListHolder = new PagedListHolder<UserViewBean>(userViewBeans); userViewBeanPagedListHolder.setPageSize(Constants.PAGE_SIZE); request.getSession().setAttribute(sessionKey, userViewBeanPagedListHolder); return userViewBeanPagedListHolder; } }