gt: 			if (testTrailer == null) {
context: /**
  * 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.test.action;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.apache.commons.beanutils.PropertyUtils;
  import org.apache.commons.validator.GenericValidator;
  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.LIMSRuntimeException;
  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.common.log.LogEvent;
  import us.mn.state.health.lims.hibernate.HibernateUtil;
  import us.mn.state.health.lims.label.dao.LabelDAO;
  import us.mn.state.health.lims.label.daoimpl.LabelDAOImpl;
  import us.mn.state.health.lims.label.valueholder.Label;
  import us.mn.state.health.lims.login.valueholder.UserSessionData;
  import us.mn.state.health.lims.method.dao.MethodDAO;
  import us.mn.state.health.lims.method.daoimpl.MethodDAOImpl;
  import us.mn.state.health.lims.method.valueholder.Method;
  import us.mn.state.health.lims.scriptlet.dao.ScriptletDAO;
  import us.mn.state.health.lims.scriptlet.daoimpl.ScriptletDAOImpl;
  import us.mn.state.health.lims.scriptlet.valueholder.Scriptlet;
  import us.mn.state.health.lims.test.dao.TestDAO;
  import us.mn.state.health.lims.test.dao.TestSectionDAO;
  import us.mn.state.health.lims.test.daoimpl.TestDAOImpl;
  import us.mn.state.health.lims.test.daoimpl.TestSectionDAOImpl;
  import us.mn.state.health.lims.test.valueholder.Test;
  import us.mn.state.health.lims.test.valueholder.TestSection;
  import us.mn.state.health.lims.testtrailer.dao.TestTrailerDAO;
  import us.mn.state.health.lims.testtrailer.daoimpl.TestTrailerDAOImpl;
  import us.mn.state.health.lims.testtrailer.valueholder.TestTrailer;
  import us.mn.state.health.lims.typeofsample.util.TypeOfSampleUtil;
  
  /**
   * @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 TestUpdateAction 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 Test.
  		// If there is a parameter present, we should bring up an existing
  		// Test 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("TestUpdateAction","performAction()",e.toString());
  			ActionError error = new ActionError("errors.ValidationException",
  					null, null);
  			errors.add(ActionMessages.GLOBAL_MESSAGE, error);
  		}
  
  		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");
  
  		Test test = new Test();
  		// get sysUserId from login module
  		UserSessionData usd = (UserSessionData)request.getSession().getAttribute(USER_SESSION_DATA);
  		String sysUserId = String.valueOf(usd.getSystemUserId());
  		test.setSysUserId(sysUserId);
  		org.hibernate.Transaction tx = HibernateUtil.getSession()
  				.beginTransaction();
  
  		Method method = new Method();
  		String methodName = (String) dynaForm.get("methodName");
  		method.setMethodName((methodName == null)?"":methodName);
  
  		MethodDAO methodDAO = new MethodDAOImpl();
  	    Method meth = methodDAO.getMethodByName(method);
  
  		Label label = new Label();
  		String labelName = (String) dynaForm.get("labelName");
  		label.setLabelName((labelName == null)?"":labelName);
  
  		LabelDAO labelDAO = new LabelDAOImpl();
  		Label lab = labelDAO.getLabelByName(label);
  
  		TestTrailer testTrailer = new TestTrailer();
  		String testTrailerName = (String) dynaForm.get("testTrailerName");
  		testTrailer.setTestTrailerName((testTrailerName == null)?"":testTrailerName);
  
  		TestTrailerDAO testTrailerDAO = new TestTrailerDAOImpl();
  		TestTrailer tt = testTrailerDAO.getTestTrailerByName(testTrailer);
  
  		TestSection testSection = new TestSection();
  		String testSectionName = (String) dynaForm.get("testSectionName");
  		testSection.setTestSectionName(testSectionName);
  
  		TestSectionDAO testSectionDAO = new TestSectionDAOImpl();
  		TestSection ts = testSectionDAO.getTestSectionByName(testSection);
  
  		Scriptlet scriptlet = new Scriptlet();
  		String scriptletName = (String) dynaForm.get("scriptletName");
  		scriptlet.setScriptletName((scriptletName == null)?"":scriptletName);
  
  		ScriptletDAO scriptletDAO = new ScriptletDAOImpl();
  		Scriptlet s = scriptletDAO.getScriptletByName(scriptlet);
  
  		// populate valueholder from form
  		PropertyUtils.copyProperties(test, dynaForm);
  
  		test.setMethod(meth);
  		test.setLabel(lab);
  		test.setTestTrailer(tt);
  		test.setTestSection(ts);
  		test.setScriptlet(s);
  
  		try {
  
  			TestDAO testDAO = new TestDAOImpl();
  
  			if (!isNew) {
  				// bugzilla 1401 removed system.out that caused nullpointer
  				// UPDATE
  				testDAO.updateData(test);
  				// if we rewrite a test, we can't rely on the cache of tests for a type of sample (used in sample entry).
  			} else {
  				// INSERT
  				testDAO.insertData(test);
  			}
  			TypeOfSampleUtil.clearTestCache();
  			tx.commit();
  		} catch (LIMSRuntimeException lre) {
      		//bugzilla 2154
  			LogEvent.logError("TestUpdateAction","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 {
  				if (lre.getException() instanceof LIMSDuplicateRecordException) {
  					java.util.Locale locale = (java.util.Locale) request.getSession()
  					.getAttribute("org.apache.struts.action.LOCALE");
  					//bugzilla 2459 (added dup check for description)
  					String messageKey = "test.testNameOrDescription";
  					String msg =  ResourceLocator.getInstance().getMessageResources().getMessage(
  							locale, messageKey);
  					error = new ActionError("errors.DuplicateRecord.activeonly", 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(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, test);
  
  		if ("true".equalsIgnoreCase(request.getParameter("close"))) {
  			forward = FWD_CLOSE;
  		}
  
  		if (test.getId() != null && !test.getId().equals("0")) {
  			request.setAttribute(ID, test.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 "test.add.title";
  		} else {
  			return "test.edit.title";
  		}
  	}
  
  	protected String getPageSubtitleKey() {
  		if (isNew) {
  			return "test.add.title";
  		} else {
  			return "test.edit.title";
  		}
  	}
  
  	protected ActionMessages validateAll(HttpServletRequest request,
  			ActionMessages errors, BaseActionForm dynaForm) throws Exception {
  
  		// method name validation against database
  		String methodNameSelected = (String) dynaForm.get("methodName");
  
  		if (!StringUtil.isNullorNill(methodNameSelected)) {
  			Method method = new Method();
  			//System.out.println("This is method name selected "
  			//		+ methodNameSelected);
  			method.setMethodName(methodNameSelected);
  			MethodDAO methodDAO = new MethodDAOImpl();
  			method = methodDAO.getMethodByName(method);
  
  			String messageKey = "test.methodName";
  
  			if (method == null) {
  				// the panelItem is not in database - not valid parentPanelItem
  				ActionError error = new ActionError("errors.invalid",
  						getMessageForKey(messageKey), null);
  				errors.add(ActionMessages.GLOBAL_MESSAGE, error);
  			}
  		}
          //AIS - bugzilla 1562 ( removed validation for Label, as it is now drop-down) 
  		// test trailer name validation against database
  		String ttNameSelected = (String) dynaForm.get("testTrailerName");
  
  		if (!StringUtil.isNullorNill(ttNameSelected)) {
  			TestTrailer testTrailer = new TestTrailer();
  			//System.out.println("This is testTrailer name selected "
  			//		+ ttNameSelected);
  			testTrailer.setTestTrailerName(ttNameSelected);
  			TestTrailerDAO testTrailerDAO = new TestTrailerDAOImpl();
  			testTrailer = testTrailerDAO.getTestTrailerByName(testTrailer);
  
  			String messageKey = "test.testTrailerName";
  
  