Java tutorial
/** * The contents of this file are subject to the Mozilla Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * 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. * * The Original Code is OpenELIS code. * * Copyright (C) The Minnesota Department of Health. All Rights Reserved. */ package us.mn.state.health.lims.patient.action; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.beanutils.PropertyUtils; import org.apache.struts.Globals; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.action.ActionMessages; import org.hibernate.Transaction; import us.mn.state.health.lims.common.action.BaseAction; import us.mn.state.health.lims.common.action.BaseActionForm; import us.mn.state.health.lims.common.exception.LIMSRuntimeException; import us.mn.state.health.lims.common.util.StringUtil; import us.mn.state.health.lims.common.util.validator.ActionError; import us.mn.state.health.lims.common.log.LogEvent; import us.mn.state.health.lims.gender.dao.GenderDAO; import us.mn.state.health.lims.gender.daoimpl.GenderDAOImpl; import us.mn.state.health.lims.hibernate.HibernateUtil; import us.mn.state.health.lims.login.valueholder.UserSessionData; import us.mn.state.health.lims.patient.dao.PatientDAO; import us.mn.state.health.lims.patient.daoimpl.PatientDAOImpl; import us.mn.state.health.lims.patient.valueholder.Patient; import us.mn.state.health.lims.person.dao.PersonDAO; import us.mn.state.health.lims.person.daoimpl.PersonDAOImpl; import us.mn.state.health.lims.person.valueholder.Person; /** * @author diane benz * * To change this generated comment edit the template variable "typecomment": * Window>Preferences>Java>Templates. To enable and disable the creation of type * comments go to Window>Preferences>Java>Code Generation. */ public class PatientUpdateAction extends BaseAction { private boolean isNew = false; protected ActionForward performAction(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { // The first job is to determine if we are coming to this action with an // ID parameter in the request. If there is no parameter, we are // creating a new Patient. // If there is a parameter present, we should bring up an existing // Patient to edit. String forward = FWD_SUCCESS; request.setAttribute(ALLOW_EDITS_KEY, "true"); request.setAttribute(PREVIOUS_DISABLED, "false"); request.setAttribute(NEXT_DISABLED, "false"); String id = request.getParameter(ID); if (StringUtil.isNullorNill(id) || "0".equals(id)) { isNew = true; } else { isNew = false; } BaseActionForm dynaForm = (BaseActionForm) form; // server-side validation (validation.xml) ActionMessages errors = dynaForm.validate(mapping, request); if (errors != null && errors.size() > 0) { saveErrors(request, errors); // since we forward to jsp - not Action we don't need to repopulate // the lists here return mapping.findForward(FWD_FAIL); } String start = (String) request.getParameter("startingRecNo"); String direction = (String) request.getParameter("direction"); Patient patient = new Patient(); //get sysUserId from login module UserSessionData usd = (UserSessionData) request.getSession().getAttribute(USER_SESSION_DATA); String sysUserId = String.valueOf(usd.getSystemUserId()); patient.setSysUserId(sysUserId); Transaction tx = HibernateUtil.getSession().beginTransaction(); String selectedPersonId = (String) dynaForm.get("selectedPersonId"); List persons = new ArrayList(); List genders = new ArrayList(); if (dynaForm.get("persons") != null) { persons = (List) dynaForm.get("persons"); } else { PersonDAO personDAO = new PersonDAOImpl(); persons = personDAO.getAllPersons(); } if (dynaForm.get("genders") != null) { genders = (List) dynaForm.get("genders"); } else { GenderDAO genderDAO = new GenderDAOImpl(); genders = genderDAO.getAllGenders(); } Person person = null; // get the right person to update patient with for (int i = 0; i < persons.size(); i++) { Person p = (Person) persons.get(i); if (p.getId().equals(selectedPersonId)) { person = p; break; } } // populate valueholder from form PropertyUtils.copyProperties(patient, dynaForm); patient.setPerson(person); try { PatientDAO patientDAO = new PatientDAOImpl(); if (!isNew) { // UPDATE patientDAO.updateData(patient); if (FWD_NEXT.equals(direction)) { List patients = patientDAO.getNextPatientRecord(patient.getId()); if (patients != null && patients.size() > 0) { patient = (Patient) patients.get(0); patientDAO.getData(patient); if (patients.size() < 2) { // disable next button request.setAttribute(NEXT_DISABLED, "true"); } id = patient.getId(); } else { // disable next button request.setAttribute(NEXT_DISABLED, "true"); } forward = FWD_NEXT; } if (FWD_PREVIOUS.equals(direction)) { List patients = patientDAO.getPreviousPatientRecord(patient.getId()); if (patients != null && patients.size() > 0) { patient = (Patient) patients.get(0); patientDAO.getData(patient); if (patients.size() < 2) { // disable previous button request.setAttribute(PREVIOUS_DISABLED, "true"); } id = patient.getId(); } else { // disable previous button request.setAttribute(PREVIOUS_DISABLED, "true"); } forward = FWD_PREVIOUS; } } else { // INSERT patientDAO.insertData(patient); } tx.commit(); } catch (LIMSRuntimeException lre) { //bugzilla 2154 LogEvent.logError("PatientUpdateAction", "performAction()", lre.toString()); tx.rollback(); errors = new ActionMessages(); ActionError error = null; if (lre.getException() instanceof org.hibernate.StaleObjectStateException) { // how can I get popup instead of struts error at the top of // page? // ActionMessages errors = dynaForm.validate(mapping, request); error = new ActionError("errors.OptimisticLockException", null, null); } else { error = new ActionError("errors.UpdateException", null, null); } errors.add(ActionMessages.GLOBAL_MESSAGE, error); saveErrors(request, errors); request.setAttribute(Globals.ERROR_KEY, errors); request.setAttribute(ALLOW_EDITS_KEY, "false"); // disable previous and next request.setAttribute(PREVIOUS_DISABLED, "true"); request.setAttribute(NEXT_DISABLED, "true"); forward = FWD_FAIL; } finally { HibernateUtil.closeSession(); } if (forward.equals(FWD_FAIL)) return mapping.findForward(forward); // initialize the form dynaForm.initialize(mapping); // repopulate the form from valueholder PropertyUtils.copyProperties(dynaForm, patient); PropertyUtils.setProperty(dynaForm, "persons", persons); PropertyUtils.setProperty(dynaForm, "genders", genders); if ("true".equalsIgnoreCase(request.getParameter("close"))) { forward = FWD_CLOSE; } if (patient.getId() != null && !patient.getId().equals("0")) { request.setAttribute(ID, patient.getId()); } //bugzilla 1400 if (isNew) forward = FWD_SUCCESS_INSERT; return getForward(mapping.findForward(forward), id, start); } protected String getPageTitleKey() { if (isNew) { return "patient.add.title"; } else { return "patient.edit.title"; } } protected String getPageSubtitleKey() { if (isNew) { return "patient.add.title"; } else { return "patient.edit.title"; } } }