Java tutorial
/** * This Source Code Form is subject to the terms of the Mozilla Public License, * v. 2.0. If a copy of the MPL was not distributed with this file, You can * obtain one at http://mozilla.org/MPL/2.0/. OpenMRS is also distributed under * the terms of the Healthcare Disclaimer located at http://openmrs.org/license. * * Copyright (C) OpenMRS Inc. OpenMRS is a registered trademark and the OpenMRS * graphic logo is a trademark of OpenMRS Inc. */ package org.openmrs.web.controller.concept; import java.util.HashMap; import java.util.Map; 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.Drug; import org.openmrs.api.ConceptService; import org.openmrs.api.context.Context; import org.openmrs.propertyeditor.ConceptEditor; import org.openmrs.util.OpenmrsConstants; import org.openmrs.web.WebConstants; import org.springframework.beans.propertyeditors.CustomNumberEditor; import org.springframework.dao.DataIntegrityViolationException; import org.springframework.validation.BindException; import org.springframework.validation.Errors; import org.springframework.web.bind.ServletRequestDataBinder; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.SimpleFormController; import org.springframework.web.servlet.view.RedirectView; public class ConceptDrugFormController 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)); binder.registerCustomEditor(java.lang.Double.class, new CustomNumberEditor(java.lang.Double.class, true)); binder.registerCustomEditor(Concept.class, new ConceptEditor()); } /** * 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()) { Drug drug = (Drug) obj; ConceptService conceptService = Context.getConceptService(); if (request.getParameter("retireDrug") != null) { String retireReason = request.getParameter("retireReason"); if (drug.getId() != null && (retireReason == null || retireReason.length() == 0)) { errors.reject("retireReason", "ConceptDrug.retire.reason.empty"); return showForm(request, response, errors); } conceptService.retireDrug(drug, retireReason); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ConceptDrug.retiredSuccessfully"); } // if this obs is already voided and needs to be unvoided else if (request.getParameter("unretireDrug") != null) { conceptService.unretireDrug(drug); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ConceptDrug.unretiredSuccessfully"); } else if (request.getParameter("purgeDrug") != null) { try { conceptService.purgeDrug(drug); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ConceptDrug.purgedSuccessfully"); } catch (DataIntegrityViolationException e) { httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "error.object.inuse.cannot.purge"); } } else { conceptService.saveDrug(drug); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ConceptDrug.saved"); } view = getSuccessView(); } 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 { Drug drug = null; if (Context.isAuthenticated()) { ConceptService cs = Context.getConceptService(); String id = request.getParameter("drugId"); if (id != null) { drug = cs.getDrug(Integer.valueOf(id)); } } if (drug == null) { drug = new Drug(); } return drug; } /** * @see org.springframework.web.servlet.mvc.SimpleFormController#referenceData(javax.servlet.http.HttpServletRequest, * java.lang.Object, org.springframework.validation.Errors) */ protected Map<String, Object> referenceData(HttpServletRequest request, Object obj, Errors errs) throws Exception { Drug drug = (Drug) obj; Map<String, Object> map = new HashMap<String, Object>(); String defaultVerbose = "false"; if (Context.isAuthenticated()) { if (drug.getConcept() != null) { map.put("conceptName", drug.getConcept().getName(request.getLocale())); } defaultVerbose = Context.getAuthenticatedUser() .getUserProperty(OpenmrsConstants.USER_PROPERTY_SHOW_VERBOSE); } map.put("defaultVerbose", defaultVerbose.equals("true") ? true : false); String editReason = request.getParameter("editReason"); if (editReason == null) { editReason = ""; } map.put("editReason", editReason); return map; } }