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.dictionary.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.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.LIMSFrozenRecordException; 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.SystemConfiguration; 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.common.log.LogEvent; import us.mn.state.health.lims.dictionary.dao.DictionaryDAO; import us.mn.state.health.lims.dictionary.daoimpl.DictionaryDAOImpl; import us.mn.state.health.lims.dictionary.valueholder.Dictionary; import us.mn.state.health.lims.dictionarycategory.dao.DictionaryCategoryDAO; import us.mn.state.health.lims.dictionarycategory.daoimpl.DictionaryCategoryDAOImpl; import us.mn.state.health.lims.dictionarycategory.valueholder.DictionaryCategory; 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 DictionaryUpdateAction 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 Dictionary. // If there is a parameter present, we should bring up an existing // Dictionary 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) { // 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); Dictionary dictionary = new Dictionary(); //get sysUserId from login module UserSessionData usd = (UserSessionData) request.getSession().getAttribute(USER_SESSION_DATA); String sysUserId = String.valueOf(usd.getSystemUserId()); dictionary.setSysUserId(sysUserId); org.hibernate.Transaction tx = HibernateUtil.getSession().beginTransaction(); // populate valueholder from form PropertyUtils.copyProperties(dictionary, dynaForm); //bugzilla 2062 DictionaryDAO dictionaryDAO = new DictionaryDAOImpl(); DictionaryCategoryDAO dictionaryCategoryDAO = new DictionaryCategoryDAOImpl(); String selectedCategoryId = (String) dynaForm.get("selectedDictionaryCategoryId"); //bugzilla 2108 DictionaryCategory dictionaryCategory = null; if (!StringUtil.isNullorNill(selectedCategoryId)) { dictionaryCategory = new DictionaryCategory(); dictionaryCategory.setId(selectedCategoryId); dictionaryCategoryDAO.getData(dictionaryCategory); } dictionary.setDictionaryCategory(dictionaryCategory); try { if (!isNew) { // UPDATE //bugzilla 2062 boolean isDictionaryFrozenCheckRequired = false; //there is an exception to rule of checking whether dictionary record //is frozen (can no longer be updated): //currenly if only isActive has changed and //the current value is 'Y' //OR //bugzilla 1847: also the local abbreviation can be deleted/updated/inserted at anytime String dirtyFormFields = (String) dynaForm.get("dirtyFormFields"); String isActiveValue = (String) dynaForm.get("isActive"); String[] dirtyFields = dirtyFormFields .split(SystemConfiguration.getInstance().getDefaultIdSeparator(), -1); List listOfDirtyFields = new ArrayList(); for (int i = 0; i < dirtyFields.length; i++) { String dirtyField = dirtyFields[i]; if (!StringUtil.isNullorNill(dirtyField)) { listOfDirtyFields.add(dirtyField); } } List listOfDirtyFieldsNoFrozenCheckRequired = new ArrayList(); listOfDirtyFieldsNoFrozenCheckRequired.add("isActive"); listOfDirtyFieldsNoFrozenCheckRequired.add("localAbbreviation"); //bugzilla 1847 : added to exception for frozen check required // isActive changed to Y (no frozen check required) //localAbbreviation has changed (no frozen check required) if (!listOfDirtyFields.isEmpty()) { for (int i = 0; i < listOfDirtyFields.size(); i++) { String dirtyField = (String) listOfDirtyFields.get(i); if (!listOfDirtyFieldsNoFrozenCheckRequired.contains(dirtyField)) { isDictionaryFrozenCheckRequired = true; } else { //in case of isActive: need to make sure it changed to YES to be able // to skip isFrozenCheck if (dirtyField.equals("isActive") && !isActiveValue.equals(YES)) { isDictionaryFrozenCheckRequired = true; } } } } else { isDictionaryFrozenCheckRequired = false; } dictionaryDAO.updateData(dictionary, isDictionaryFrozenCheckRequired); } else { // INSERT dictionaryDAO.insertData(dictionary); } tx.commit(); } catch (LIMSRuntimeException lre) { //bugzilla 2154 LogEvent.logError("DictionaryUpdateAction", "performAction()", lre.toString()); tx.rollback(); errors = new ActionMessages(); //1482 java.util.Locale locale = (java.util.Locale) request.getSession() .getAttribute("org.apache.struts.action.LOCALE"); 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 { //bugzilla 1386 if (lre.getException() instanceof LIMSDuplicateRecordException) { String messageKey = "dictionary.dictEntryByCategory"; String msg = ResourceLocator.getInstance().getMessageResources().getMessage(locale, messageKey); error = new ActionError("errors.DuplicateRecord.activate", msg, null); } else if (lre.getException() instanceof LIMSFrozenRecordException) { String messageKey = "dictionary.dictEntry"; String msg = ResourceLocator.getInstance().getMessageResources().getMessage(locale, messageKey); error = new ActionError("errors.FrozenRecord", msg, null); //Now disallow further edits RECORD_FROZEN_EDIT_DISABLED_KEY //in this case User needs to Exit and come back to refresh form //for further updates (this is to restore isDirty() functionality //that relies on defaultValues of form // --this is needed to determine whether frozen check is required request.setAttribute(RECORD_FROZEN_EDIT_DISABLED_KEY, "true"); } 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(IActionConstants.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, dictionary); if ("true".equalsIgnoreCase(request.getParameter("close"))) { forward = FWD_CLOSE; } if (dictionary.getId() != null && !dictionary.getId().equals("0")) { request.setAttribute(ID, dictionary.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 "dictionary.add.title"; } else { return "dictionary.edit.title"; } } protected String getPageSubtitleKey() { if (isNew) { return "dictionary.add.title"; } else { return "dictionary.edit.title"; } } }