Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.openmrs.web.controller.order; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.Vector; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.openmrs.Concept; import org.openmrs.DrugOrder; import org.openmrs.Order; import org.openmrs.Patient; import org.openmrs.PersonName; import org.openmrs.api.APIException; import org.openmrs.api.OrderService; import org.openmrs.api.PatientService; import org.openmrs.api.context.Context; import org.openmrs.web.WebConstants; import org.springframework.context.support.MessageSourceAccessor; import org.springframework.util.StringUtils; import org.springframework.validation.BindException; import org.springframework.validation.Errors; import org.springframework.web.bind.ServletRequestDataBinder; import org.springframework.web.bind.ServletRequestUtils; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.SimpleFormController; import org.springframework.web.servlet.view.RedirectView; public class OrderListByPatientController extends SimpleFormController { /** Logger for this class and subclasses */ protected final Log log = LogFactory.getLog(getClass()); /** * Allows for Integers to be used as values in input tags. Normally, only strings and lists are * expected * * @see org.springframework.web.servlet.mvc.BaseCommandController#initBinder(javax.servlet.http.HttpServletRequest, * org.springframework.web.bind.ServletRequestDataBinder) */ protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception { super.initBinder(request, binder); //binder.registerCustomEditor(java.lang.Integer.class, new CustomNumberEditor(java.lang.Integer.class, true)); } /** * The onSubmit function receives the form/command object that was modified by the input form * and saves it to the db * * @see org.springframework.web.servlet.mvc.SimpleFormController#onSubmit(javax.servlet.http.HttpServletRequest, * javax.servlet.http.HttpServletResponse, java.lang.Object, * org.springframework.validation.BindException) */ protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object obj, BindException errors) throws Exception { HttpSession httpSession = request.getSession(); String view = getFormView(); if (Context.isAuthenticated()) { String[] orderList = ServletRequestUtils.getStringParameters(request, "orderId"); OrderService os = Context.getOrderService(); String success = ""; String error = ""; MessageSourceAccessor msa = getMessageSourceAccessor(); String deleted = msa.getMessage("general.deleted"); String notDeleted = msa.getMessage("general.cannot.delete"); String ord = msa.getMessage("Order.title"); String voidReason = ServletRequestUtils.getRequiredStringParameter(request, "voidReason"); if (!StringUtils.hasLength(voidReason)) { httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "general.voidReason.empty"); return showForm(request, response, errors); } for (String p : orderList) { try { os.voidOrder(os.getOrder(Integer.valueOf(p)), voidReason); if (!success.equals("")) success += "<br/>"; success += ord + " " + p + " " + deleted; } catch (APIException e) { log.warn("Error deleting order", e); if (!error.equals("")) error += "<br/>"; error += ord + " " + p + " " + notDeleted; } } view = getSuccessView(); if (ServletRequestUtils.getIntParameter(request, "patientId") != null) view += "?patientId=" + ServletRequestUtils.getIntParameter(request, "patientId"); if (!success.equals("")) httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, success); if (!error.equals("")) httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, error); } return new ModelAndView(new RedirectView(view)); } /** * This is called prior to displaying a form for the first time. It tells Spring the * form/command object to load into the request * * @see org.springframework.web.servlet.mvc.AbstractFormController#formBackingObject(javax.servlet.http.HttpServletRequest) */ protected Object formBackingObject(HttpServletRequest request) throws ServletException { //default empty Object List<DrugOrder> orderList = new Vector<DrugOrder>(); Integer patientId = ServletRequestUtils.getIntParameter(request, "patientId"); boolean showAll = ServletRequestUtils.getBooleanParameter(request, "showAll", false); //only fill the Object is the user has authenticated properly if (Context.isAuthenticated()) { if (patientId != null) { // this is the default this.setFormView("/admin/orders/orderListByPatient"); PatientService ps = Context.getPatientService(); Patient p = ps.getPatient(patientId); if (p != null) { OrderService os = Context.getOrderService(); orderList = os.getDrugOrdersByPatient(p, true); } else { log.error("Could not get a patient corresponding to patientId [" + patientId + "], thus could not get drug orders."); throw new ServletException(); } } else { if (showAll) { this.setFormView("/admin/orders/orderDrugList"); OrderService os = Context.getOrderService(); //orderList = os.getDrugOrders(); orderList = os.getOrders(DrugOrder.class, null, null, null, null, null, null, null); } else { this.setFormView("/admin/orders/choosePatient"); } } } return orderList; } /* (non-Javadoc) * @see org.springframework.web.servlet.mvc.SimpleFormController#referenceData(javax.servlet.http.HttpServletRequest, java.lang.Object, org.springframework.validation.Errors) */ @SuppressWarnings("unchecked") @Override protected Map referenceData(HttpServletRequest request, Object obj, Errors err) throws Exception { Map<String, Object> refData = new HashMap<String, Object>(); // Load international concept names so we can show the correct drug name Map<Integer, String> conceptNames = new HashMap<Integer, String>(); List<Order> orderList = (List<Order>) obj; for (Order order : orderList) { Concept c = order.getConcept(); String cName = c.getBestName(Context.getLocale()).getName(); conceptNames.put(c.getConceptId(), cName); } refData.put("conceptNames", conceptNames); // Load information about this patient that we might need Integer patientId = ServletRequestUtils.getIntParameter(request, "patientId"); Patient p = null; if (Context.isAuthenticated()) { if (patientId != null) { PatientService ps = Context.getPatientService(); p = ps.getPatient(patientId); Set<PersonName> PersonNames = p.getNames(); Iterator i = PersonNames.iterator(); PersonName pm = (PersonName) i.next(); refData.put("patient", p); refData.put("PersonName", pm); } } return refData; } }