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.customer; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Locale; 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.Customer; import org.hoteia.qalingo.core.domain.enumtype.BoUrls; import org.hoteia.qalingo.core.i18n.enumtype.ScopeWebMessage; import org.hoteia.qalingo.core.service.CustomerService; import org.hoteia.qalingo.core.web.mvc.form.CustomerForm; import org.hoteia.qalingo.core.web.mvc.viewbean.CustomerViewBean; 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.hoteia.qalingo.web.mvc.controller.AbstractBusinessBackofficeController; import org.springframework.beans.factory.annotation.Autowired; 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; /** * */ @Controller("customerController") public class CustomerController extends AbstractBusinessBackofficeController { @Autowired private CustomerService customerService; @RequestMapping(value = BoUrls.CUSTOMER_LIST_URL, method = RequestMethod.GET) public ModelAndView customerList(final HttpServletRequest request, final Model model) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.CUSTOMER_LIST.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); displayList(request, model, requestData); overrideDefaultMainContentTitle(request, modelAndView, BoUrls.CUSTOMER_LIST.getKey(), null); model.addAttribute(ModelConstants.URL_ADD, backofficeUrlService.generateUrl(BoUrls.CUSTOMER_ADD, requestData)); return modelAndView; } @RequestMapping(value = BoUrls.CUSTOMER_DETAILS_URL, method = RequestMethod.GET) public ModelAndView customerDetails(final HttpServletRequest request, final Model model) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.CUSTOMER_DETAILS.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); final String customerCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_CUSTOMER_CODE); final Customer customer = customerService.getCustomerByCode(customerCode); if (customer != null) { modelAndView.addObject(ModelConstants.CUSTOMER_VIEW_BEAN, backofficeViewBeanFactory.buildViewBeanCustomer(requestUtil.getRequestData(request), customer)); } else { final String url = requestUtil.getLastRequestUrl(request); return new ModelAndView(new RedirectView(url)); } modelAndView.addObject(ModelConstants.CUSTOMER_VIEW_BEAN, backofficeViewBeanFactory.buildViewBeanCustomer(requestData, customer)); model.addAttribute(ModelConstants.URL_BACK, backofficeUrlService.generateUrl(BoUrls.CUSTOMER_LIST, requestData)); Object[] params = { customer.getLastname() + " " + customer.getFirstname() }; overrideDefaultMainContentTitle(request, modelAndView, BoUrls.CUSTOMER_DETAILS.getKey(), params); return modelAndView; } @RequestMapping(value = BoUrls.CUSTOMER_EDIT_URL, method = RequestMethod.GET) public ModelAndView customerEdit(final HttpServletRequest request, final Model model, @ModelAttribute(ModelConstants.CUSTOMER_FORM) CustomerForm customerForm) throws Exception { ModelAndViewThemeDevice modelAndView = new ModelAndViewThemeDevice(getCurrentVelocityPath(request), BoUrls.CUSTOMER_EDIT.getVelocityPage()); final RequestData requestData = requestUtil.getRequestData(request); final String customerCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_CUSTOMER_CODE); if (StringUtils.isNotEmpty(customerCode)) { // EDIT MODE final Customer customer = customerService.getCustomerByCode(customerCode); CustomerViewBean customerViewBean = backofficeViewBeanFactory.buildViewBeanCustomer(requestData, customer); request.setAttribute(ModelConstants.CUSTOMER_VIEW_BEAN, customerViewBean); Object[] params = { customer.getLastname() + " " + customer.getFirstname() }; overrideDefaultMainContentTitle(request, modelAndView, BoUrls.CUSTOMER_EDIT.getKey(), params); model.addAttribute(ModelConstants.URL_BACK, backofficeUrlService.generateUrl(BoUrls.CUSTOMER_DETAILS, requestData, customer)); } else { // ADD MODE overrideDefaultMainContentTitle(request, modelAndView, BoUrls.CUSTOMER_ADD.getKey(), null); model.addAttribute(ModelConstants.URL_BACK, backofficeUrlService.generateUrl(BoUrls.CUSTOMER_LIST, requestData)); } return modelAndView; } @RequestMapping(value = BoUrls.CUSTOMER_EDIT_URL, method = RequestMethod.POST) public ModelAndView customerEdit(final HttpServletRequest request, final Model model, @Valid @ModelAttribute(ModelConstants.CUSTOMER_FORM) CustomerForm customerForm, BindingResult result) throws Exception { final RequestData requestData = requestUtil.getRequestData(request); final Locale locale = requestData.getLocale(); if (result.hasErrors()) { return customerEdit(request, model, customerForm); } Customer customer = null; if (StringUtils.isNotEmpty(customerForm.getId())) { customer = customerService.getCustomerById(customerForm.getId()); } try { // CREATE OR UPDATE CUSTOMER Customer savedCustomer = webBackofficeService.createOrUpdateCustomer(customer, customerForm); if (customer == null) { addSessionSuccessMessage(request, getSpecificMessage(ScopeWebMessage.CUSTOMER, "create_success_message", locale)); } else { addSessionSuccessMessage(request, getSpecificMessage(ScopeWebMessage.CUSTOMER, "update_success_message", locale)); } final String urlRedirect = backofficeUrlService.generateUrl(BoUrls.CUSTOMER_DETAILS, requestUtil.getRequestData(request), savedCustomer); return new ModelAndView(new RedirectView(urlRedirect)); } catch (Exception e) { addMessageError(result, null, "login", "login", getSpecificMessage(ScopeWebMessage.CUSTOMER, "create_or_update_message", locale)); logger.error("Can't save or update Customer:" + customerForm.getId() + "/" + customerForm.getLogin(), e); return customerEdit(request, model, customerForm); } } /** * */ @ModelAttribute(ModelConstants.CUSTOMER_FORM) protected CustomerForm initCustomerForm(final HttpServletRequest request, final Model model) throws Exception { final RequestData requestData = requestUtil.getRequestData(request); final String customerCode = request.getParameter(RequestConstants.REQUEST_PARAMETER_CUSTOMER_CODE); if (StringUtils.isNotEmpty(customerCode)) { final Customer customerEdit = customerService.getCustomerByCode(customerCode); return backofficeFormFactory.buildCustomerForm(requestData, customerEdit); } return backofficeFormFactory.buildCustomerForm(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_Customers"; PagedListHolder<CustomerViewBean> customerViewBeanPagedListHolder = new PagedListHolder<CustomerViewBean>(); if (StringUtils.isEmpty(page)) { customerViewBeanPagedListHolder = initList(request, sessionKey); } else { customerViewBeanPagedListHolder = (PagedListHolder) request.getSession().getAttribute(sessionKey); if (customerViewBeanPagedListHolder == null) { customerViewBeanPagedListHolder = initList(request, sessionKey); } int pageTarget = new Integer(page).intValue() - 1; int pageCurrent = customerViewBeanPagedListHolder.getPage(); if (pageCurrent < pageTarget) { for (int i = pageCurrent; i < pageTarget; i++) { customerViewBeanPagedListHolder.nextPage(); } } else if (pageCurrent > pageTarget) { for (int i = pageTarget; i < pageCurrent; i++) { customerViewBeanPagedListHolder.previousPage(); } } } model.addAttribute(Constants.PAGINATION_PAGE_URL, url); model.addAttribute(Constants.PAGINATION_PAGE_PAGED_LIST_HOLDER, customerViewBeanPagedListHolder); } private PagedListHolder<CustomerViewBean> initList(final HttpServletRequest request, String sessionKey) throws Exception { PagedListHolder<CustomerViewBean> customerViewBeanPagedListHolder = new PagedListHolder<CustomerViewBean>(); final List<CustomerViewBean> customerViewBeans = new ArrayList<CustomerViewBean>(); final List<Customer> customers = customerService.findCustomers(); for (Iterator<Customer> iterator = customers.iterator(); iterator.hasNext();) { Customer customer = (Customer) iterator.next(); customerViewBeans.add( backofficeViewBeanFactory.buildViewBeanCustomer(requestUtil.getRequestData(request), customer)); } customerViewBeanPagedListHolder = new PagedListHolder<CustomerViewBean>(customerViewBeans); customerViewBeanPagedListHolder.setPageSize(Constants.PAGE_SIZE); request.getSession().setAttribute(sessionKey, customerViewBeanPagedListHolder); return customerViewBeanPagedListHolder; } }