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.analyte.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 us.mn.state.health.lims.analyte.dao.AnalyteDAO; import us.mn.state.health.lims.analyte.daoimpl.AnalyteDAOImpl; import us.mn.state.health.lims.analyte.valueholder.Analyte; 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.LIMSDuplicateRecordException; import us.mn.state.health.lims.common.exception.LIMSRuntimeException; import us.mn.state.health.lims.common.log.LogEvent; import us.mn.state.health.lims.common.util.StringUtil; import us.mn.state.health.lims.common.util.resources.ResourceLocator; import us.mn.state.health.lims.common.util.validator.ActionError; import us.mn.state.health.lims.hibernate.HibernateUtil; import us.mn.state.health.lims.login.valueholder.UserSessionData; /** * @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 AnalyteUpdateAction 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 Analyte. // If there is a parameter present, we should bring up an existing // Analyte 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); try { errors = validateAll(request, errors, dynaForm); } catch (Exception e) { //bugzilla 2154 LogEvent.logError("AnalyteUpdateAction", "performAction()", e.toString()); ActionError error = new ActionError("errors.ValidationException", null, null); errors.add(ActionMessages.GLOBAL_MESSAGE, error); } if (errors != null && errors.size() > 0) { // System.out.println("Server side validation errors " // + errors.toString()); 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"); // System.out.println("This is ID from request " + id); Analyte analyte = new Analyte(); //get sysUserId from login module UserSessionData usd = (UserSessionData) request.getSession().getAttribute(USER_SESSION_DATA); String sysUserId = String.valueOf(usd.getSystemUserId()); analyte.setSysUserId(sysUserId); org.hibernate.Transaction tx = HibernateUtil.getSession().beginTransaction(); // String selectedAnalyteId = (String) // dynaForm.get("selectedAnalyteId"); String parentAnalyteName = (String) dynaForm.get("parentAnalyteName"); // System.out.println("This is selectedAnalyteId " // + dynaForm.get("selectedAnalyteId")); List anals = new ArrayList(); if (dynaForm.get("parentAnalytes") != null) { anals = (List) dynaForm.get("parentAnalytes"); } else { AnalyteDAO analDAO = new AnalyteDAOImpl(); anals = analDAO.getAllAnalytes(); } Analyte parentAnalyte = null; // get the right parentAnalyte to update analyte with for (int i = 0; i < anals.size(); i++) { Analyte o = (Analyte) anals.get(i); // if (o.getId().equals(selectedAnalyteId)) { if ((o != null) && (parentAnalyteName != null)) { if (o.getAnalyteName().equals(parentAnalyteName)) { parentAnalyte = o; break; } } } // populate valueholder from form PropertyUtils.copyProperties(analyte, dynaForm); analyte.setAnalyte(parentAnalyte); try { AnalyteDAO analyteDAO = new AnalyteDAOImpl(); if (!isNew) { // UPDATE analyteDAO.updateData(analyte); } else { // INSERT analyteDAO.insertData(analyte); } tx.commit(); } catch (LIMSRuntimeException lre) { //bugzilla 2154 LogEvent.logError("AnalyteUpdateAction", "performAction()", lre.toString()); tx.rollback(); errors = new ActionMessages(); ActionError error = null; //bugzilla 1482 java.util.Locale locale = (java.util.Locale) request.getSession() .getAttribute("org.apache.struts.action.LOCALE"); 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 { //bugzilla 1482 if (lre.getException() instanceof LIMSDuplicateRecordException) { //bugzilla 2432 String messageKey = "analyte.analyteNameOrLocalAbbreviation"; String msg = ResourceLocator.getInstance().getMessageResources().getMessage(locale, messageKey); error = new ActionError("errors.DuplicateRecord.activate", msg, null); } else { error = new ActionError("errors.UpdateException", null, null); } } errors.add(ActionMessages.GLOBAL_MESSAGE, error); saveErrors(request, errors); request.setAttribute(Globals.ERROR_KEY, errors); //bugzilla 1485: allow change and try updating again (enable save button) //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, analyte); // need to repopulate in case of FWD_FAIL? PropertyUtils.setProperty(form, "parentAnalytes", anals); if ("true".equalsIgnoreCase(request.getParameter("close"))) { forward = FWD_CLOSE; } if (analyte.getId() != null && !analyte.getId().equals("0")) { request.setAttribute(ID, analyte.getId()); } //bugzilla 1400 if (isNew) forward = FWD_SUCCESS_INSERT; //bugzilla 1467 added direction for redirect to NextPreviousAction return getForward(mapping.findForward(forward), id, start, direction); } protected String getPageTitleKey() { if (isNew) { return "analyte.add.title"; } else { return "analyte.edit.title"; } } protected String getPageSubtitleKey() { if (isNew) { return "analyte.add.title"; } else { return "analyte.edit.title"; } } protected ActionMessages validateAll(HttpServletRequest request, ActionMessages errors, BaseActionForm dynaForm) throws Exception { // parent analyte validation against database String parentAnalyteSelected = (String) dynaForm.get("parentAnalyteName"); if (!StringUtil.isNullorNill(parentAnalyteSelected)) { Analyte analyte = new Analyte(); analyte.setAnalyteName(parentAnalyteSelected); AnalyteDAO analyteDAO = new AnalyteDAOImpl(); //bugzilla 1367 analyte = analyteDAO.getAnalyteByName(analyte, false); String messageKey = "analyte.parent"; if (analyte == null) { // the analyte is not in database - not valid parentAnalyte ActionError error = new ActionError("errors.invalid", getMessageForKey(messageKey), null); errors.add(ActionMessages.GLOBAL_MESSAGE, error); } } return errors; } }