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.sample.action; import java.sql.Timestamp; import java.util.ArrayList; import java.util.Calendar; 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.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.hibernate.HibernateUtil; import us.mn.state.health.lims.login.valueholder.UserSessionData; import us.mn.state.health.lims.sample.dao.SampleDAO; import us.mn.state.health.lims.sample.daoimpl.SampleDAOImpl; import us.mn.state.health.lims.sample.valueholder.Sample; import us.mn.state.health.lims.sampledomain.dao.SampleDomainDAO; import us.mn.state.health.lims.sampledomain.daoimpl.SampleDomainDAOImpl; import us.mn.state.health.lims.systemuser.dao.SystemUserDAO; import us.mn.state.health.lims.systemuser.daoimpl.SystemUserDAOImpl; import us.mn.state.health.lims.systemuser.valueholder.SystemUser; /** * @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 SampleUpdateAction 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 Sample. // If there is a parameter present, we should bring up an existing // Sample 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"); Sample sample = new Sample(); //get sysUserId from login module UserSessionData usd = (UserSessionData) request.getSession().getAttribute(USER_SESSION_DATA); String sysUserId1 = String.valueOf(usd.getSystemUserId()); sample.setSysUserId(sysUserId1); org.hibernate.Transaction tx = HibernateUtil.getSession().beginTransaction(); String sysUserId = (String) dynaForm.get("sysUserId"); //String sampleIdRelatesTo = (String) dynaForm.get("sampleIdRelatesTo"); List sysUsers = new ArrayList(); //List samps = new ArrayList(); List sampleDomains = new ArrayList(); if (dynaForm.get("sysUsers") != null) { sysUsers = (List) dynaForm.get("sysUsers"); } else { SystemUserDAO sysUserDAO = new SystemUserDAOImpl(); sysUsers = sysUserDAO.getAllSystemUsers(); } if (dynaForm.get("sampleDomains") != null) { sampleDomains = (List) dynaForm.get("sampleDomains"); } else { SampleDomainDAO sampleDomainDAO = new SampleDomainDAOImpl(); sampleDomains = sampleDomainDAO.getAllSampleDomains(); } SystemUser sysUser = null; for (int i = 0; i < sysUsers.size(); i++) { SystemUser su = (SystemUser) sysUsers.get(i); if (su.getId().equals(sysUserId)) { sysUser = su; break; } } // populate valueholder from form PropertyUtils.copyProperties(sample, dynaForm); // set the system user sample.setSystemUser(sysUser); // set collection time String time = (String) dynaForm.get("collectionTimeForDisplay"); if (StringUtil.isNullorNill(time)) { time = "00:00"; } sample.setCollectionTimeForDisplay(time); Timestamp d = sample.getCollectionDate(); if (time.indexOf(":") > 0) { //bugzilla 1857 deprecated stuff Calendar cal = Calendar.getInstance(); cal.setTime(d); cal.set(Calendar.HOUR_OF_DAY, Integer.valueOf(time.substring(0, 2)).intValue()); cal.set(Calendar.MINUTE, Integer.valueOf(time.substring(3, 5)).intValue()); //d.setHours(Integer.valueOf(time.substring(0, 2)).intValue()); //d.setMinutes(Integer.valueOf(time.substring(3, 5)).intValue()); d = new Timestamp(cal.getTimeInMillis()); sample.setCollectionDate(d); } try { SampleDAO sampleDAO = new SampleDAOImpl(); if (!isNew) { // UPDATE sampleDAO.updateData(sample); if (FWD_NEXT.equals(direction)) { List samples = sampleDAO.getNextSampleRecord(sample.getId()); if (samples != null && samples.size() > 0) { sample = (Sample) samples.get(0); sampleDAO.getData(sample); if (samples.size() < 2) { // disable next button request.setAttribute(NEXT_DISABLED, "true"); } id = sample.getId(); } else { // disable next button request.setAttribute(NEXT_DISABLED, "true"); } forward = FWD_NEXT; } if (FWD_PREVIOUS.equals(direction)) { List samples = sampleDAO.getPreviousSampleRecord(sample.getId()); if (samples != null && samples.size() > 0) { sample = (Sample) samples.get(0); sampleDAO.getData(sample); if (samples.size() < 2) { // disable previous button request.setAttribute(PREVIOUS_DISABLED, "true"); } id = sample.getId(); } else { // disable previous button request.setAttribute(PREVIOUS_DISABLED, "true"); } forward = FWD_PREVIOUS; } } else { // INSERT sampleDAO.insertData(sample); } tx.commit(); } catch (LIMSRuntimeException lre) { //bugzilla 2154 LogEvent.logError("SampleUpdateAction", "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, sample); // need to repopulate in case of FWD_FAIL? PropertyUtils.setProperty(dynaForm, "sysUsers", sysUsers); PropertyUtils.setProperty(dynaForm, "sampleDomains", sampleDomains); if ("true".equalsIgnoreCase(request.getParameter("close"))) { forward = FWD_CLOSE; } if (sample.getId() != null && !sample.getId().equals("0")) { request.setAttribute(ID, sample.getId()); } //bugzilla 1400 if (isNew) forward = FWD_SUCCESS_INSERT; return getForward(mapping.findForward(forward), id, start); } protected String getPageTitleKey() { if (isNew) { return "sample.add.title"; } else { return "sample.edit.title"; } } protected String getPageSubtitleKey() { if (isNew) { return "sample.add.title"; } else { return "sample.edit.title"; } } }