Java tutorial
/* * eGov SmartCity eGovernance suite aims to improve the internal efficiency,transparency, * accountability and the service delivery of the government organizations. * * Copyright (C) 2017 eGovernments Foundation * * The updated version of eGov suite of products as by eGovernments Foundation * is available at http://www.egovernments.org * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * 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 Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/ or * http://www.gnu.org/licenses/gpl.html . * * In addition to the terms of the GPL license to be adhered to in using this * program, the following additional terms are to be complied with: * * 1) All versions of this program, verbatim or modified must carry this * Legal Notice. * Further, all user interfaces, including but not limited to citizen facing interfaces, * Urban Local Bodies interfaces, dashboards, mobile applications, of the program and any * derived works should carry eGovernments Foundation logo on the top right corner. * * For the logo, please refer http://egovernments.org/html/logo/egov_logo.png. * For any further queries on attribution, including queries on brand guidelines, * please contact contact@egovernments.org * * 2) Any misrepresentation of the origin of the material is prohibited. It * is required that all modified versions of this material be marked in * reasonable ways as different from the original version. * * 3) This license does not grant any rights to any user of the program * with regards to rights under trademark law for use of the trade names * or trademarks of eGovernments Foundation. * * In case of any queries, you can reach eGovernments Foundation at contact@egovernments.org. * */ package org.egov.egf.web.controller; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import org.apache.commons.lang3.StringUtils; import org.egov.egf.web.adaptor.BudgetGroupJsonAdaptor; import org.egov.model.budget.BudgetDetail; import org.egov.model.budget.BudgetGroup; import org.egov.model.service.BudgetingGroupService; import org.egov.services.budget.BudgetDetailService; import org.egov.utils.BudgetAccountType; import org.egov.utils.BudgetingType; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.MessageSource; import org.springframework.http.MediaType; 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.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.servlet.mvc.support.RedirectAttributes; import javax.validation.Valid; import java.util.Arrays; import java.util.List; import java.util.Locale; @Controller @RequestMapping("/budgetgroup") public class BudgetGroupController { private final static String BUDGETGROUP_NEW = "budgetgroup-new"; private final static String BUDGETGROUP_RESULT = "budgetgroup-result"; private final static String BUDGETGROUP_EDIT = "budgetgroup-edit"; private final static String BUDGETGROUP_VIEW = "budgetgroup-view"; private final static String BUDGETGROUP_SEARCH = "budgetgroup-search"; @Autowired private BudgetingGroupService budgetGroupService; @Autowired private MessageSource messageSource; @Autowired private BudgetDetailService budgetDetailService; private void prepareNewForm(final Model model) { model.addAttribute("majorCodeList", budgetGroupService.getMajorCodeList()); model.addAttribute("minCodeList", budgetGroupService.getMinCodeList()); model.addAttribute("budgetAccountTypes", Arrays.asList(BudgetAccountType.values())); model.addAttribute("budgetingTypes", Arrays.asList(BudgetingType.values())); } @RequestMapping(value = "/new", method = RequestMethod.GET) public String newForm(final Model model) { prepareNewForm(model); model.addAttribute("budgetGroup", new BudgetGroup()); return BUDGETGROUP_NEW; } @RequestMapping(value = "/create", method = RequestMethod.POST) public String create(@Valid @ModelAttribute final BudgetGroup budgetGroup, final BindingResult errors, final RedirectAttributes redirectAttrs, final Model model) { if (budgetGroup.getMajorCode() == null && budgetGroup.getMinCode() == null && budgetGroup.getMaxCode() == null) errors.rejectValue("majorCode", "budgetgroup.select.accountcode"); if (budgetGroup.getMajorCode() != null && (budgetGroup.getMinCode() != null || budgetGroup.getMaxCode() != null)) errors.rejectValue("majorCode", "budgetgroup.invalid.mapping"); if (budgetGroup.getMajorCode() == null && (budgetGroup.getMinCode() != null || budgetGroup.getMaxCode() != null)) { if (budgetGroup.getMinCode() == null) errors.rejectValue("minCode", "budgetgroup.invalidminorcode.mapping"); else if (budgetGroup.getMaxCode() == null) errors.rejectValue("maxCode", "budgetgroup.invalidmajorcode.mapping"); } String validationMessage = budgetGroupService.validate(budgetGroup, errors); if (errors.hasErrors() || !StringUtils.isEmpty(validationMessage)) { prepareNewForm(model); model.addAttribute("majorCode", validationMessage); return BUDGETGROUP_NEW; } budgetGroupService.create(budgetGroup); redirectAttrs.addFlashAttribute("message", messageSource.getMessage("msg.budgetGroup.success", null, Locale.ENGLISH)); return "redirect:/budgetgroup/result/" + budgetGroup.getId(); } @RequestMapping(value = "/edit/{id}", method = RequestMethod.GET) public String edit(@PathVariable("id") final Long id, final Model model) { final BudgetGroup budgetGroup = budgetGroupService.findOne(id); List<BudgetDetail> bd = budgetDetailService.getBudgetDetailsByBudgetGroupId(budgetGroup.getId()); if (!bd.isEmpty()) { model.addAttribute("mode", "edit"); } prepareNewForm(model); model.addAttribute("budgetGroup", budgetGroup); return BUDGETGROUP_EDIT; } @RequestMapping(value = "/update", method = RequestMethod.POST) public String update(@Valid @ModelAttribute final BudgetGroup budgetGroup, final BindingResult errors, final Model model, final RedirectAttributes redirectAttrs) { String validationMessage = budgetGroupService.validate(budgetGroup, errors); if (errors.hasErrors() || !StringUtils.isEmpty(validationMessage)) { model.addAttribute("majorCode", validationMessage); prepareNewForm(model); return BUDGETGROUP_EDIT; } budgetGroupService.update(budgetGroup); redirectAttrs.addFlashAttribute("message", messageSource.getMessage("msg.budgetGroup.update", null, Locale.ENGLISH)); return "redirect:/budgetgroup/result/" + budgetGroup.getId(); } @RequestMapping(value = "/view/{id}", method = RequestMethod.GET) public String view(@PathVariable("id") final Long id, final Model model) { final BudgetGroup budgetGroup = budgetGroupService.findOne(id); prepareNewForm(model); model.addAttribute("budgetGroup", budgetGroup); return BUDGETGROUP_VIEW; } @RequestMapping(value = "/result/{id}", method = RequestMethod.GET) public String result(@PathVariable("id") final Long id, final Model model) { final BudgetGroup budgetGroup = budgetGroupService.findOne(id); model.addAttribute("budgetGroup", budgetGroup); return BUDGETGROUP_RESULT; } @RequestMapping(value = "/search/{mode}", method = RequestMethod.GET) public String search(@PathVariable("mode") final String mode, final Model model) { final BudgetGroup budgetGroup = new BudgetGroup(); prepareNewForm(model); model.addAttribute("budgetGroup", budgetGroup); return BUDGETGROUP_SEARCH; } @RequestMapping(value = "/ajaxsearch/{mode}", method = RequestMethod.POST, produces = MediaType.TEXT_PLAIN_VALUE) public @ResponseBody String ajaxsearch(@PathVariable("mode") final String mode, final Model model, @ModelAttribute final BudgetGroup budgetGroup) { final List<BudgetGroup> searchResultList = budgetGroupService.search(budgetGroup); final String result = new StringBuilder("{ \"data\":").append(toSearchResultJson(searchResultList)) .append("}").toString(); return result; } public Object toSearchResultJson(final Object object) { final GsonBuilder gsonBuilder = new GsonBuilder(); final Gson gson = gsonBuilder.registerTypeAdapter(BudgetGroup.class, new BudgetGroupJsonAdaptor()).create(); final String json = gson.toJson(object); return json; } }