Java tutorial
/** * Copyright 2009 Society for Health Information Systems Programmes, India (HISP India) * * This file is part of Billing module. * * Billing module 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 * (at your option) any later version. * Billing module 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 Billing module. If not, see <http://www.gnu.org/licenses/>. * **/ package org.openmrs.module.billing.web.controller.main; import java.math.BigDecimal; import java.util.Date; import java.util.List; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.openmrs.api.context.Context; import org.openmrs.module.hospitalcore.BillingService; import org.openmrs.module.hospitalcore.model.Ambulance; import org.openmrs.module.hospitalcore.model.AmbulanceBill; import org.openmrs.module.hospitalcore.model.AmbulanceBillItem; import org.openmrs.module.hospitalcore.model.Driver; import org.openmrs.module.hospitalcore.util.Money; import org.openmrs.web.WebConstants; 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.bind.annotation.RequestParam; @Controller @RequestMapping("/module/billing/addAmbulanceBill.form") public class AmbulanceBillAddController { Log log = LogFactory.getLog(getClass()); @RequestMapping(method = RequestMethod.POST) public String onSubmit(Model model, @RequestParam("driverId") Integer driverId, @RequestParam("ambulanceIds") Integer[] ambulanceIds, HttpServletRequest request, Object command, BindingResult binding) { validate(ambulanceIds, binding, request); if (binding.hasErrors()) { model.addAttribute("errors", binding.getAllErrors()); return "module/billing/main/ambulanceBillAdd"; } BillingService billingService = (BillingService) Context.getService(BillingService.class); Driver driver = billingService.getDriverById(driverId); AmbulanceBill ambulanceBill = new AmbulanceBill(); ambulanceBill.setDriver(driver); ambulanceBill.setCreatedDate(new Date()); ambulanceBill.setCreator(Context.getAuthenticatedUser()); Ambulance ambulance = null; Money itemAmount; Money totalAmount = new Money(BigDecimal.ZERO); for (Integer id : ambulanceIds) { ambulance = billingService.getAmbulanceById(id); BigDecimal amount = new BigDecimal(request.getParameter(id + "_amount")); itemAmount = new Money(amount); totalAmount = totalAmount.plus(itemAmount); Integer numberOfTrip = Integer.parseInt(request.getParameter(id + "_numOfTrip")); //ghanshyam 07/07/2012 New Requirement #305: Additional details in Ambulance Bill String patientName = (request.getParameter(id + "_patientName")); //ghanshyam 1/08/2012 feedback of New Requirement #305: Additional details in Ambulance Bill String receiptNumber = (request.getParameter(id + "_receiptNumber")); String origin = (request.getParameter(id + "_origin")); String destination = (request.getParameter(id + "_destination")); AmbulanceBillItem item = new AmbulanceBillItem(); item.setName(ambulance.getName()); item.setCreatedDate(new Date()); item.setNumberOfTrip(numberOfTrip); item.setAmbulance(ambulance); item.setAmbulanceBill(ambulanceBill); item.setAmount(itemAmount.getAmount()); //ghanshyam 07/07/2012 New Requirement #305: Additional details in Ambulance Bill item.setPatientName(patientName); item.setReceiptNumber(receiptNumber); item.setOrigin(origin); item.setDestination(destination); ambulanceBill.addBillItem(item); } ambulanceBill.setAmount(totalAmount.getAmount()); ambulanceBill.setReceipt(billingService.createReceipt()); ambulanceBill = billingService.saveAmbulanceBill(ambulanceBill); return "redirect:/module/billing/ambulanceBill.list?driverId=" + driverId + "&ambulanceBillId=" + ambulanceBill.getAmbulanceBillId(); } @RequestMapping(method = RequestMethod.GET) public String displayForm(@ModelAttribute("command") Object command, @RequestParam("driverId") Integer driverId, HttpServletRequest request, Model model) { BillingService billingService = (BillingService) Context.getService(BillingService.class); List<Ambulance> listAmbulance = billingService.getActiveAmbulances(); if (listAmbulance == null || listAmbulance.size() == 0) { request.getSession().setAttribute(WebConstants.OPENMRS_MSG_ATTR, "No Ambulance found."); } else { model.addAttribute("listAmbulance", listAmbulance); } model.addAttribute("driverId", driverId); return "module/billing/main/ambulanceBillAdd"; } private void validate(Integer[] ids, BindingResult binding, HttpServletRequest request) { for (int id : ids) { try { Integer.parseInt(request.getParameter(id + "_numOfTrip")); } catch (Exception e) { binding.reject("billing.bill.quantity.invalid", "Number of trip is invalid"); return; } try { new BigDecimal(request.getParameter(id + "_amount")); } catch (Exception e) { binding.reject("billing.bill.quantity.invalid", "Amount is invalid"); return; } } } }