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.provider; 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.ProviderAttributeType; import org.openmrs.api.APIException; import org.openmrs.api.ProviderService; import org.openmrs.api.context.Context; import org.openmrs.customdatatype.CustomDatatypeUtil; import org.openmrs.web.WebConstants; import org.springframework.dao.DataIntegrityViolationException; import org.springframework.util.StringUtils; import org.springframework.validation.BindException; import org.springframework.validation.Errors; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.SimpleFormController; import org.springframework.web.servlet.view.RedirectView; /** * Controller for editing visit attribute types. * * @since 1.9 */ public class ProviderAttributeTypeFormController extends SimpleFormController { /** Logger for this class and subclasses */ protected final Log log = LogFactory.getLog(getClass()); /** * 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()) { ProviderAttributeType providerAttributeType = (ProviderAttributeType) obj; ProviderService providerService = Context.getProviderService(); if (request.getParameter("save") != null) { providerService.saveProviderAttributeType(providerAttributeType); view = getSuccessView(); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ProviderAttributeType.saved"); } // if the user is retiring out the ProviderAttributeType else if (request.getParameter("retire") != null) { String retireReason = request.getParameter("retireReason"); if (providerAttributeType.getProviderAttributeTypeId() != null && !(StringUtils.hasText(retireReason))) { errors.reject("retireReason", "general.retiredReason.empty"); return showForm(request, response, errors); } providerService.retireProviderAttributeType(providerAttributeType, retireReason); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ProviderAttributeType.retiredSuccessfully"); view = getSuccessView(); } // if the user is purging the providerAttributeType else if (request.getParameter("purge") != null) { try { providerService.purgeProviderAttributeType(providerAttributeType); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ProviderAttributeType.purgedSuccessfully"); view = getSuccessView(); } catch (DataIntegrityViolationException e) { httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "error.object.inuse.cannot.purge"); view = "providerAttributeType.form?providerAttributeTypeId=" + providerAttributeType.getProviderAttributeTypeId(); } catch (APIException e) { httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "error.general: " + e.getLocalizedMessage()); view = "providerAttributeType.form?providerAttributeTypeId=" + providerAttributeType.getProviderAttributeTypeId(); } } else if (request.getParameter("unretire") != null) { try { providerService.unretireProviderAttributeType(providerAttributeType); httpSession.setAttribute(WebConstants.OPENMRS_MSG_ATTR, "ProviderAttributeType.unretiredSuccessfully"); view = getSuccessView(); } catch (APIException e) { httpSession.setAttribute(WebConstants.OPENMRS_ERROR_ATTR, "error.general: " + e.getLocalizedMessage()); view = "providerAttributeType.form?providerAttributeTypeId=" + providerAttributeType.getProviderAttributeTypeId(); } } } 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 { ProviderAttributeType providerAttributeType = null; if (Context.isAuthenticated()) { ProviderService os = Context.getProviderService(); String providerAttributeTypeId = request.getParameter("providerAttributeTypeId"); if (providerAttributeTypeId != null) { providerAttributeType = os.getProviderAttributeType(Integer.valueOf(providerAttributeTypeId)); } } if (providerAttributeType == null) { providerAttributeType = new ProviderAttributeType(); } return providerAttributeType; } /** * @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 errors) throws Exception { Map<String, Object> map = new HashMap<String, Object>(); map.put("datatypes", CustomDatatypeUtil.getDatatypeClassnames()); map.put("handlers", CustomDatatypeUtil.getHandlerClassnames()); return map; } }