/**
    * Copyright 2005-2012 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (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.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.krad.rules;
  
  import org.apache.commons.lang.StringUtils;
  import org.kuali.rice.core.api.CoreApiServiceLocator;
  import org.kuali.rice.core.api.config.property.ConfigurationService;
  import org.kuali.rice.core.api.datetime.DateTimeService;
  import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;
  import org.kuali.rice.core.api.mo.common.active.MutableInactivatable;
  import org.kuali.rice.core.api.util.RiceKeyConstants;
  import org.kuali.rice.core.web.format.Formatter;
  import org.kuali.rice.kew.api.WorkflowDocument;
  import org.kuali.rice.kim.api.identity.PersonService;
  import org.kuali.rice.kim.api.role.RoleService;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  import org.kuali.rice.krad.bo.GlobalBusinessObject;
  import org.kuali.rice.krad.bo.PersistableBusinessObject;
  import org.kuali.rice.krad.datadictionary.InactivationBlockingMetadata;
  import org.kuali.rice.krad.document.Document;
  import org.kuali.rice.krad.maintenance.MaintenanceDocument;
  import org.kuali.rice.krad.exception.ValidationException;
  import org.kuali.rice.krad.maintenance.Maintainable;
  import org.kuali.rice.krad.maintenance.MaintenanceDocumentAuthorizer;
  import org.kuali.rice.krad.rules.rule.event.ApproveDocumentEvent;
  import org.kuali.rice.krad.service.BusinessObjectService;
  import org.kuali.rice.krad.service.DataDictionaryService;
  import org.kuali.rice.krad.service.DataObjectAuthorizationService;
  import org.kuali.rice.krad.service.DataObjectMetaDataService;
  import org.kuali.rice.krad.service.DictionaryValidationService;
  import org.kuali.rice.krad.service.InactivationBlockingDetectionService;
  import org.kuali.rice.krad.service.KRADServiceLocator;
  import org.kuali.rice.krad.service.KRADServiceLocatorWeb;
  import org.kuali.rice.krad.service.PersistenceStructureService;
  import org.kuali.rice.krad.util.ErrorMessage;
  import org.kuali.rice.krad.util.ForeignKeyFieldsPopulationState;
  import org.kuali.rice.krad.util.GlobalVariables;
  import org.kuali.rice.krad.util.KRADConstants;
  import org.kuali.rice.krad.util.KRADPropertyConstants;
  import org.kuali.rice.krad.util.ObjectUtils;
  import org.kuali.rice.krad.util.UrlFactory;
  import org.kuali.rice.krad.workflow.service.WorkflowDocumentService;
  import org.springframework.util.AutoPopulatingList;
  
  import java.security.GeneralSecurityException;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import java.util.Set;
  
  /**
   * Contains all of the business rules that are common to all maintenance documents
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class MaintenanceDocumentRuleBase extends DocumentRuleBase implements MaintenanceDocumentRule {
      protected static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(MaintenanceDocumentRuleBase.class);
  
      // these two constants are used to correctly prefix errors added to
      // the global errors
      public static final String MAINTAINABLE_ERROR_PREFIX = KRADConstants.MAINTENANCE_NEW_MAINTAINABLE;
      public static final String DOCUMENT_ERROR_PREFIX = "document.";
      public static final String MAINTAINABLE_ERROR_PATH = DOCUMENT_ERROR_PREFIX + "newMaintainableObject";
  
      private PersistenceStructureService persistenceStructureService;
      private DataDictionaryService ddService;
      private BusinessObjectService boService;
      private DictionaryValidationService dictionaryValidationService;
      private ConfigurationService configService;
      private WorkflowDocumentService workflowDocumentService;
      private PersonService personService;
      private RoleService roleService;
      private DataObjectMetaDataService dataObjectMetaDataService;
      private DataObjectAuthorizationService dataObjectAuthorizationService;
  
      private Object oldDataObject;
      private Object newDataObject;
      private Class dataObjectClass;
  
      protected List priorErrorPath;
  
      /**
       * Default constructor a MaintenanceDocumentRuleBase.java.
       */
     public MaintenanceDocumentRuleBase() {
         priorErrorPath = new ArrayList();
     }
 
     /**
      * @see MaintenanceDocumentRule#processSaveDocument(org.kuali.rice.krad.document.Document)
      */
     @Override
     public boolean processSaveDocument(Document document) {
         MaintenanceDocument maintenanceDocument = (MaintenanceDocument) document;
 
         // remove all items from the errorPath temporarily (because it may not
         // be what we expect, or what we need)
         clearErrorPath();
 
         // setup convenience pointers to the old & new bo
         setupBaseConvenienceObjects(maintenanceDocument);
 
         // the document must be in a valid state for saving. this does not include business
         // rules, but just enough testing that the document is populated and in a valid state
         // to not cause exceptions when saved. if this passes, then the save will always occur,
         // regardless of business rules.
         if (!isDocumentValidForSave(maintenanceDocument)) {
             resumeErrorPath();
             return false;
         }
 
         // apply rules that are specific to the class of the maintenance document
         // (if implemented). this will always succeed if not overloaded by the
         // subclass
         if (!processCustomSaveDocumentBusinessRules(maintenanceDocument)) {
             resumeErrorPath();
             return false;
         }
 
         // return the original set of items to the errorPath
         resumeErrorPath();
 
         // return the original set of items to the errorPath, to ensure no impact
         // on other upstream or downstream items that rely on the errorPath
         return true;
     }
 
     /**
      * @see MaintenanceDocumentRule#processRouteDocument(org.kuali.rice.krad.document.Document)
      */
     @Override
     public boolean processRouteDocument(Document document) {
         LOG.info("processRouteDocument called");
 
         MaintenanceDocument maintenanceDocument = (MaintenanceDocument) document;
 
         // get the documentAuthorizer for this document
         MaintenanceDocumentAuthorizer documentAuthorizer =
                 (MaintenanceDocumentAuthorizer) getDocumentDictionaryService().getDocumentAuthorizer(document);
 
         // remove all items from the errorPath temporarily (because it may not
         // be what we expect, or what we need)
         clearErrorPath();
 
         // setup convenience pointers to the old & new bo
         setupBaseConvenienceObjects(maintenanceDocument);
 
         // apply rules that are common across all maintenance documents, regardless of class
         processGlobalSaveDocumentBusinessRules(maintenanceDocument);
 
         // from here on, it is in a default-success mode, and will route unless one of the
         // business rules stop it.
         boolean success = true;
 
         WorkflowDocument workflowDocument = document.getDocumentHeader().getWorkflowDocument();
         if (workflowDocument.isInitiated() || workflowDocument.isSaved()){
             try {
                 success &= documentAuthorizer.canCreateOrMaintain((MaintenanceDocument)document, GlobalVariables.getUserSession().getPerson());
                 if (success == false) {
                     GlobalVariables.getMessageMap()
                             .putError(KRADConstants.DOCUMENT_ERRORS, RiceKeyConstants.AUTHORIZATION_ERROR_DOCUMENT,
                                     new String[]{GlobalVariables.getUserSession().getPerson().getPrincipalName(),
                                             "Create/Maintain", getDocumentDictionaryService()
                                             .getMaintenanceDocumentTypeName(newDataObject.getClass())});
                 }
             } catch (RiceIllegalArgumentException e) {
                 // TODO error message the right way
                 GlobalVariables.getMessageMap()
                         .putError("Unable to determine authorization due to previous errors","Unable to determine authorization due to previous errors");
             }
         }
         // apply rules that are common across all maintenance documents, regardless of class
         success &= processGlobalRouteDocumentBusinessRules(maintenanceDocument);
 
         // apply rules that are specific to the class of the maintenance document
         // (if implemented). this will always succeed if not overloaded by the
         // subclass
         success &= processCustomRouteDocumentBusinessRules(maintenanceDocument);
 
         success &= processInactivationBlockChecking(maintenanceDocument);
 
         // return the original set of items to the errorPath, to ensure no impact
         // on other upstream or downstream items that rely on the errorPath
         resumeErrorPath();
 
         return success;
     }
 
     /**
      * Determines whether a document is inactivating the record being maintained
      *
      * @param maintenanceDocument
      * @return true iff the document is inactivating the business object; false otherwise
      */
     protected boolean isDocumentInactivatingBusinessObject(MaintenanceDocument maintenanceDocument) {
         if (maintenanceDocument.isEdit()) {
             Class dataObjectClass = maintenanceDocument.getNewMaintainableObject().getDataObjectClass();
             // we can only be inactivating a business object if we're editing it
             if (dataObjectClass != null && MutableInactivatable.class.isAssignableFrom(dataObjectClass)) {
                 MutableInactivatable oldInactivateableBO = (MutableInactivatable) oldDataObject;
                 MutableInactivatable newInactivateableBO = (MutableInactivatable) newDataObject;
 
                 return oldInactivateableBO.isActive() && !newInactivateableBO.isActive();
             }
         }
         return false;
     }
 
     /**
      * Determines whether this document has been inactivation blocked
      *
      * @param maintenanceDocument
      * @return true iff there is NOTHING that blocks this record
      */
     protected boolean processInactivationBlockChecking(MaintenanceDocument maintenanceDocument) {
         if (isDocumentInactivatingBusinessObject(maintenanceDocument)) {
             Class dataObjectClass = maintenanceDocument.getNewMaintainableObject().getDataObjectClass();
             Set<InactivationBlockingMetadata> inactivationBlockingMetadatas =
                     getDataDictionaryService().getAllInactivationBlockingDefinitions(dataObjectClass);
 
             if (inactivationBlockingMetadatas != null) {
                 for (InactivationBlockingMetadata inactivationBlockingMetadata : inactivationBlockingMetadatas) {
                     // for the purposes of maint doc validation, we only need to look for the first blocking record
 
                     // we found a blocking record, so we return false
                     if (!processInactivationBlockChecking(maintenanceDocument, inactivationBlockingMetadata)) {
                         return false;
                     }
                 }
             }
         }
         return true;
     }
 
     /**
      * Given a InactivationBlockingMetadata, which represents a relationship that may block inactivation of a BO, it
      * determines whether there
      * is a record that violates the blocking definition
      *
      * @param maintenanceDocument
      * @param inactivationBlockingMetadata
      * @return true iff, based on the InactivationBlockingMetadata, the maintenance document should be allowed to route
      */
     protected boolean processInactivationBlockChecking(MaintenanceDocument maintenanceDocument,
             InactivationBlockingMetadata inactivationBlockingMetadata) {
         if (newDataObject instanceof PersistableBusinessObject) {
             String inactivationBlockingDetectionServiceBeanName =
                     inactivationBlockingMetadata.getInactivationBlockingDetectionServiceBeanName();
             if (StringUtils.isBlank(inactivationBlockingDetectionServiceBeanName)) {
                 inactivationBlockingDetectionServiceBeanName =
                         KRADServiceLocatorWeb.DEFAULT_INACTIVATION_BLOCKING_DETECTION_SERVICE;
             }
             InactivationBlockingDetectionService inactivationBlockingDetectionService = KRADServiceLocatorWeb
                     .getInactivationBlockingDetectionService(inactivationBlockingDetectionServiceBeanName);
 
             boolean foundBlockingRecord = inactivationBlockingDetectionService
                     .hasABlockingRecord((PersistableBusinessObject) newDataObject, inactivationBlockingMetadata);
 
             if (foundBlockingRecord) {
                 putInactivationBlockingErrorOnPage(maintenanceDocument, inactivationBlockingMetadata);
             }
 
             return !foundBlockingRecord;
         }
 
         return true;
     }
 
     /**
      * If there is a violation of an InactivationBlockingMetadata, it prints out an appropriate error into the error
      * map
      *
      * @param document
      * @param inactivationBlockingMetadata
      */
     protected void putInactivationBlockingErrorOnPage(MaintenanceDocument document,
             InactivationBlockingMetadata inactivationBlockingMetadata) {
         if (!getPersistenceStructureService().hasPrimaryKeyFieldValues(newDataObject)) {
             throw new RuntimeException("Maintenance document did not have all primary key values filled in.");
         }
         Properties parameters = new Properties();
         parameters.put(KRADConstants.BUSINESS_OBJECT_CLASS_ATTRIBUTE,
                 inactivationBlockingMetadata.getBlockedBusinessObjectClass().getName());
         parameters
                 .put(KRADConstants.DISPATCH_REQUEST_PARAMETER, KRADConstants.METHOD_DISPLAY_ALL_INACTIVATION_BLOCKERS);
 
         List keys = new ArrayList();
         if (getPersistenceStructureService().isPersistable(newDataObject.getClass())) {
             keys = getPersistenceStructureService().listPrimaryKeyFieldNames(newDataObject.getClass());
         }
 
         // build key value url parameters used to retrieve the business object
         String keyName = null;
         for (Iterator iter = keys.iterator(); iter.hasNext(); ) {
             keyName = (String) iter.next();
 
             Object keyValue = null;
             if (keyName != null) {
                 keyValue = ObjectUtils.getPropertyValue(newDataObject, keyName);
             }
 
             if (keyValue == null) {
                 keyValue = "";
             } else if (keyValue instanceof java.sql.Date) { //format the date for passing in url
                 if (Formatter.findFormatter(keyValue.getClass()) != null) {
                     Formatter formatter = Formatter.getFormatter(keyValue.getClass());
                     keyValue = (String) formatter.format(keyValue);
                 }
             } else {
                 keyValue = keyValue.toString();
             }
 
             // Encrypt value if it is a secure field
             if (getDataObjectAuthorizationService().attributeValueNeedsToBeEncryptedOnFormsAndLinks(
                     inactivationBlockingMetadata.getBlockedBusinessObjectClass(), keyName)){
                 try {
                     keyValue = CoreApiServiceLocator.getEncryptionService().encrypt(keyValue);
                 } catch (GeneralSecurityException e) {
                     LOG.error("Exception while trying to encrypted value for inquiry framework.", e);
                     throw new RuntimeException(e);
                 }
             }
 
             parameters.put(keyName, keyValue);
         }
 
         String blockingUrl =
                 UrlFactory.parameterizeUrl(KRADConstants.DISPLAY_ALL_INACTIVATION_BLOCKERS_ACTION, parameters);
 
         // post an error about the locked document
         GlobalVariables.getMessageMap()
                 .putError(KRADConstants.GLOBAL_ERRORS, RiceKeyConstants.ERROR_INACTIVATION_BLOCKED, blockingUrl);
     }
 
     /**
      * @see MaintenanceDocumentRule#processApproveDocument(org.kuali.rice.krad.rules.rule.event.ApproveDocumentEvent)
      */
     @Override
     public boolean processApproveDocument(ApproveDocumentEvent approveEvent) {
         MaintenanceDocument maintenanceDocument = (MaintenanceDocument) approveEvent.getDocument();
 
         // remove all items from the errorPath temporarily (because it may not
         // be what we expect, or what we need)
         clearErrorPath();
 
         // setup convenience pointers to the old & new bo
         setupBaseConvenienceObjects(maintenanceDocument);
 
         // apply rules that are common across all maintenance documents, regardless of class
         processGlobalSaveDocumentBusinessRules(maintenanceDocument);
 
         // from here on, it is in a default-success mode, and will approve unless one of the
         // business rules stop it.
         boolean success = true;
 
         // apply rules that are common across all maintenance documents, regardless of class
         success &= processGlobalApproveDocumentBusinessRules(maintenanceDocument);
 
         // apply rules that are specific to the class of the maintenance document
         // (if implemented). this will always succeed if not overloaded by the
         // subclass
         success &= processCustomApproveDocumentBusinessRules(maintenanceDocument);
 
         // return the original set of items to the errorPath, to ensure no impact
         // on other upstream or downstream items that rely on the errorPath
         resumeErrorPath();
 
         return success;
     }
 
     /**
      * This method is a convenience method to easily add a Document level error (ie, one not tied to a specific field,
      * but
      * applicable to the whole document).
      *
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      */
     protected void putGlobalError(String errorConstant) {
         if (!errorAlreadyExists(KRADConstants.DOCUMENT_ERRORS, errorConstant)) {
             GlobalVariables.getMessageMap().putErrorWithoutFullErrorPath(KRADConstants.DOCUMENT_ERRORS, errorConstant);
         }
     }
 
     /**
      * This method is a convenience method to easily add a Document level error (ie, one not tied to a specific field,
      * but
      * applicable to the whole document).
      *
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameter - Replacement value for part of the error message.
      */
     protected void putGlobalError(String errorConstant, String parameter) {
         if (!errorAlreadyExists(KRADConstants.DOCUMENT_ERRORS, errorConstant)) {
             GlobalVariables.getMessageMap()
                     .putErrorWithoutFullErrorPath(KRADConstants.DOCUMENT_ERRORS, errorConstant, parameter);
         }
     }
 
     /**
      * This method is a convenience method to easily add a Document level error (ie, one not tied to a specific field,
      * but
      * applicable to the whole document).
      *
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameters - Array of replacement values for part of the error message.
      */
     protected void putGlobalError(String errorConstant, String[] parameters) {
         if (!errorAlreadyExists(KRADConstants.DOCUMENT_ERRORS, errorConstant)) {
             GlobalVariables.getMessageMap()
                     .putErrorWithoutFullErrorPath(KRADConstants.DOCUMENT_ERRORS, errorConstant, parameters);
         }
     }
 
     /**
      * This method is a convenience method to add a property-specific error to the global errors list. This method
      * makes
      * sure that
      * the correct prefix is added to the property name so that it will display correctly on maintenance documents.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      */
     protected void putFieldError(String propertyName, String errorConstant) {
         if (!errorAlreadyExists(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant)) {
             GlobalVariables.getMessageMap()
                     .putErrorWithoutFullErrorPath(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant);
         }
     }
 
     /**
      * This method is a convenience method to add a property-specific error to the global errors list. This method
      * makes
      * sure that
      * the correct prefix is added to the property name so that it will display correctly on maintenance documents.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameter - Single parameter value that can be used in the message so that you can display specific
      * values
      * to the
      * user.
      */
     protected void putFieldError(String propertyName, String errorConstant, String parameter) {
         if (!errorAlreadyExists(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant)) {
             GlobalVariables.getMessageMap()
                     .putErrorWithoutFullErrorPath(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant, parameter);
         }
     }
 
     /**
      * This method is a convenience method to add a property-specific error to the global errors list. This method
      * makes
      * sure that
      * the correct prefix is added to the property name so that it will display correctly on maintenance documents.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameters - Array of strings holding values that can be used in the message so that you can display
      * specific values
      * to the user.
      */
     protected void putFieldError(String propertyName, String errorConstant, String[] parameters) {
         if (!errorAlreadyExists(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant)) {
             GlobalVariables.getMessageMap()
                     .putErrorWithoutFullErrorPath(MAINTAINABLE_ERROR_PREFIX + propertyName, errorConstant, parameters);
         }
     }
 
     /**
      * Adds a property-specific error to the global errors list, with the DD short label as the single argument.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      */
     protected void putFieldErrorWithShortLabel(String propertyName, String errorConstant) {
         String shortLabel = getDataDictionaryService().getAttributeShortLabel(dataObjectClass, propertyName);
         putFieldError(propertyName, errorConstant, shortLabel);
     }
 
     /**
      * This method is a convenience method to add a property-specific document error to the global errors list. This
      * method makes
      * sure that the correct prefix is added to the property name so that it will display correctly on maintenance
      * documents.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameter - Single parameter value that can be used in the message so that you can display specific
      * values
      * to the
      * user.
      */
     protected void putDocumentError(String propertyName, String errorConstant, String parameter) {
         if (!errorAlreadyExists(DOCUMENT_ERROR_PREFIX + propertyName, errorConstant)) {
             GlobalVariables.getMessageMap().putError(DOCUMENT_ERROR_PREFIX + propertyName, errorConstant, parameter);
         }
     }
 
     /**
      * This method is a convenience method to add a property-specific document error to the global errors list. This
      * method makes
      * sure that the correct prefix is added to the property name so that it will display correctly on maintenance
      * documents.
      *
      * @param propertyName - Property name of the element that is associated with the error. Used to mark the field as
      * errored in
      * the UI.
      * @param errorConstant - Error Constant that can be mapped to a resource for the actual text message.
      * @param parameters - Array of String parameters that can be used in the message so that you can display specific
      * values to the
      * user.
      */
     protected void putDocumentError(String propertyName, String errorConstant, String[] parameters) {
         GlobalVariables.getMessageMap().putError(DOCUMENT_ERROR_PREFIX + propertyName, errorConstant, parameters);
     }
 
     /**
      * Convenience method to determine whether the field already has the message indicated.
      *
      * This is useful if you want to suppress duplicate error messages on the same field.
      *
      * @param propertyName - propertyName you want to test on
      * @param errorConstant - errorConstant you want to test
      * @return returns True if the propertyName indicated already has the errorConstant indicated, false otherwise
      */
     protected boolean errorAlreadyExists(String propertyName, String errorConstant) {
         if (GlobalVariables.getMessageMap().fieldHasMessage(propertyName, errorConstant)) {
             return true;
         } else {
             return false;
         }
     }
 
     /**
      * This method specifically doesn't put any prefixes before the error so that the developer can do things specific
      * to the
      * globals errors (like newDelegateChangeDocument errors)
      *
      * @param propertyName
      * @param errorConstant
      */
     protected void putGlobalsError(String propertyName, String errorConstant) {
         if (!errorAlreadyExists(propertyName, errorConstant)) {
             GlobalVariables.getMessageMap().putErrorWithoutFullErrorPath(propertyName, errorConstant);
         }
     }
 
     /**
      * This method specifically doesn't put any prefixes before the error so that the developer can do things specific
      * to the
      * globals errors (like newDelegateChangeDocument errors)
      *
      * @param propertyName
      * @param errorConstant
      * @param parameter
      */
     protected void putGlobalsError(String propertyName, String errorConstant, String parameter) {
         if (!errorAlreadyExists(propertyName, errorConstant)) {
             GlobalVariables.getMessageMap().putErrorWithoutFullErrorPath(propertyName, errorConstant, parameter);
         }
     }
 
     /**
      * This method is used to deal with error paths that are not what we expect them to be. This method, along with
      * resumeErrorPath() are used to temporarily clear the errorPath, and then return it to the original state after
      * the
      * rule is
      * executed.
      *
      * This method is called at the very beginning of rule enforcement and pulls a copy of the contents of the
      * errorPath
      * ArrayList
      * to a local arrayList for temporary storage.
      */
     protected void clearErrorPath() {
         // add all the items from the global list to the local list
         priorErrorPath.addAll(GlobalVariables.getMessageMap().getErrorPath());
 
         // clear the global list
         GlobalVariables.getMessageMap().getErrorPath().clear();
     }
 
     /**
      * This method is used to deal with error paths that are not what we expect them to be. This method, along with
      * clearErrorPath()
      * are used to temporarily clear the errorPath, and then return it to the original state after the rule is
      * executed.
      *
      * This method is called at the very end of the rule enforcement, and returns the temporarily stored copy of the
      * errorPath to
      * the global errorPath, so that no other classes are interrupted.
      */
     protected void resumeErrorPath() {
         // revert the global errorPath back to what it was when we entered this
         // class
         GlobalVariables.getMessageMap().getErrorPath().addAll(priorErrorPath);
     }
 
     /**
      * Executes the DataDictionary Validation against the document.
      *
      * @param document
      * @return true if it passes DD validation, false otherwise
      */
     protected boolean dataDictionaryValidate(MaintenanceDocument document) {
         LOG.debug("MaintenanceDocument validation beginning");
 
         // explicitly put the errorPath that the dictionaryValidationService
         // requires
         GlobalVariables.getMessageMap().addToErrorPath("document.newMaintainableObject");
 
         // document must have a newMaintainable object
         Maintainable newMaintainable = document.getNewMaintainableObject();
         if (newMaintainable == null) {
             GlobalVariables.getMessageMap().removeFromErrorPath("document.newMaintainableObject");
             throw new ValidationException(
                     "Maintainable object from Maintenance Document '" + document.getDocumentTitle() +
                             "' is null, unable to proceed.");
         }
 
         // document's newMaintainable must contain an object (ie, not null)
         Object dataObject = newMaintainable.getDataObject();
         if (dataObject == null) {
             GlobalVariables.getMessageMap().removeFromErrorPath("document.newMaintainableObject.");
             throw new ValidationException("Maintainable's component business object is null.");
         }
 
         GlobalVariables.getMessageMap().addToErrorPath("dataObject");
 
         getDictionaryValidationService().validate(newDataObject);
 
         GlobalVariables.getMessageMap().removeFromErrorPath("dataObject");
 
         // explicitly remove the errorPath we've added
         GlobalVariables.getMessageMap().removeFromErrorPath("document.newMaintainableObject");
 
         LOG.debug("MaintenanceDocument validation ending");
         return true;
     }
 
     /**
      * This method checks the two major cases that may violate primary key integrity.
      *
      * 1. Disallow changing of the primary keys on an EDIT maintenance document. Other fields can be changed, but once
      * the primary
      * keys have been set, they are permanent.
      *
      * 2. Disallow creating a new object whose primary key values are already present in the system on a CREATE NEW
      * maintenance
      * document.
      *
      * This method also will add new Errors to the Global Error Map.
      *
      * @param document - The Maintenance Document being tested.
      * @return Returns false if either test failed, otherwise returns true.
      */
     protected boolean primaryKeyCheck(MaintenanceDocument document) {
         // default to success if no failures
         boolean success = true;
         Class<?> dataObjectClass = document.getNewMaintainableObject().getDataObjectClass();
 
         Object oldBo = document.getOldMaintainableObject().getDataObject();
         Object newDataObject = document.getNewMaintainableObject().getDataObject();
 
         // We dont do primaryKeyChecks on Global Business Object maintenance documents. This is
         // because it doesnt really make any sense to do so, given the behavior of Globals. When a
         // Global Document completes, it will update or create a new record for each BO in the list.
         // As a result, there's no problem with having existing BO records in the system, they will
         // simply get updated.
         if (newDataObject instanceof GlobalBusinessObject) {
             return success;
         }
 
         // fail and complain if the person has changed the primary keys on
         // an EDIT maintenance document.
         if (document.isEdit()) {
             if (!getDataObjectMetaDataService().equalsByPrimaryKeys(oldBo, newDataObject)) {
                 // add a complaint to the errors
                 putDocumentError(KRADConstants.DOCUMENT_ERRORS,
                         RiceKeyConstants.ERROR_DOCUMENT_MAINTENANCE_PRIMARY_KEYS_CHANGED_ON_EDIT,
                         getHumanReadablePrimaryKeyFieldNames(dataObjectClass));
                 success &= false;
             }
         }
 
         // fail and complain if the person has selected a new object with keys that already exist
         // in the DB.
         else if (document.isNew()) {
 
             // TODO: when/if we have standard support for DO retrieval, do this check for DO's
             if (newDataObject instanceof PersistableBusinessObject) {
 
                 // get a map of the pk field names and values
                 Map<String, ?> newPkFields = getDataObjectMetaDataService().getPrimaryKeyFieldValues(newDataObject);
 
                 // TODO: Good suggestion from Aaron, dont bother checking the DB, if all of the
                 // objects PK fields dont have values. If any are null or empty, then
                 // we're done. The current way wont fail, but it will make a wasteful
                 // DB call that may not be necessary, and we want to minimize these.
 
                 // attempt to do a lookup, see if this object already exists by these Primary Keys
                 PersistableBusinessObject testBo = getBoService()
                         .findByPrimaryKey(dataObjectClass.asSubclass(PersistableBusinessObject.class), newPkFields);
 
                 // if the retrieve was successful, then this object already exists, and we need
                 // to complain
                 if (testBo != null) {
                     putDocumentError(KRADConstants.DOCUMENT_ERRORS,
                             RiceKeyConstants.ERROR_DOCUMENT_MAINTENANCE_KEYS_ALREADY_EXIST_ON_CREATE_NEW,
                             getHumanReadablePrimaryKeyFieldNames(dataObjectClass));
                     success &= false;
                 }
             }
         }
 
         return success;
     }
 
     /**
      * This method creates a human-readable string of the class' primary key field names, as designated by the
      * DataDictionary.
      *
      * @param dataObjectClass
      * @return
      */
     protected String getHumanReadablePrimaryKeyFieldNames(Class<?> dataObjectClass) {
         String delim = "";
         StringBuffer pkFieldNames = new StringBuffer();
 
         // get a list of all the primary key field names, walk through them
         List<String> pkFields = getDataObjectMetaDataService().listPrimaryKeyFieldNames(dataObjectClass);
         for (Iterator<String> iter = pkFields.iterator(); iter.hasNext(); ) {
             String pkFieldName = (String) iter.next();
 
             // TODO should this be getting labels from the view dictionary
             // use the DataDictionary service to translate field name into human-readable label
             String humanReadableFieldName = getDataDictionaryService().getAttributeLabel(dataObjectClass, pkFieldName);
 
             // append the next field
             pkFieldNames.append(delim + humanReadableFieldName);
 
             // separate names with commas after the first one
             if (delim.equalsIgnoreCase("")) {
                 delim = ", ";
             }
         }
 
         return pkFieldNames.toString();
     }
 
     /**
      * This method enforces all business rules that are common to all maintenance documents which must be tested before
      * doing an
      * approval.
      *
      * It can be overloaded in special cases where a MaintenanceDocument has very special needs that would be contrary
      * to what is
      * enforced here.
      *
      * @param document - a populated MaintenanceDocument instance
      * @return true if the document can be approved, false if not
      */
     protected boolean processGlobalApproveDocumentBusinessRules(MaintenanceDocument document) {
         return true;
     }
 
     /**
      * This method enforces all business rules that are common to all maintenance documents which must be tested before
      * doing a
      * route.
      *
      * It can be overloaded in special cases where a MaintenanceDocument has very special needs that would be contrary
      * to what is
      * enforced here.
      *
      * @param document - a populated MaintenanceDocument instance
      * @return true if the document can be routed, false if not
      */
     protected boolean processGlobalRouteDocumentBusinessRules(MaintenanceDocument document) {
         boolean success = true;
 
         // require a document description field
         success &= checkEmptyDocumentField(
                 KRADPropertyConstants.DOCUMENT_HEADER + "." + KRADPropertyConstants.DOCUMENT_DESCRIPTION,
                 document.getDocumentHeader().getDocumentDescription(), "Description");
 
         return success;
     }
 
     /**
      * This method enforces all business rules that are common to all maintenance documents which must be tested before
      * doing a
      * save.
      *
      * It can be overloaded in special cases where a MaintenanceDocument has very special needs that would be contrary
      * to what is
      * enforced here.
      *
      * Note that although this method returns a true or false to indicate whether the save should happen or not, this
      * result may not
      * be followed by the calling method. In other words, the boolean result will likely be ignored, and the document
      * saved,
      * regardless.
      *
      * @param document - a populated MaintenanceDocument instance
      * @return true if all business rules succeed, false if not
      */
     protected boolean processGlobalSaveDocumentBusinessRules(MaintenanceDocument document) {
         // default to success
         boolean success = true;
 
         // do generic checks that impact primary key violations
         primaryKeyCheck(document);
 
         // this is happening only on the processSave, since a Save happens in both the
         // Route and Save events.
         this.dataDictionaryValidate(document);
 
         return success;
     }
 
     /**
      * This method should be overridden to provide custom rules for processing document saving
      *
      * @param document
      * @return boolean
      */
     protected boolean processCustomSaveDocumentBusinessRules(MaintenanceDocument document) {
         return true;
     }
 
     /**
      * This method should be overridden to provide custom rules for processing document routing
      *
      * @param document
      * @return boolean
      */
     protected boolean processCustomRouteDocumentBusinessRules(MaintenanceDocument document) {
         return true;
     }
 
     /**
      * This method should be overridden to provide custom rules for processing document approval.
      *
      * @param document
      * @return booelan
      */
     protected boolean processCustomApproveDocumentBusinessRules(MaintenanceDocument document) {
         return true;
     }
 
     // Document Validation Helper Methods
 
     /**
      * This method checks to see if the document is in a state that it can be saved without causing exceptions.
      *
      * Note that Business Rules are NOT enforced here, only validity checks.
      *
      * This method will only return false if the document is in such a state that routing it will cause
      * RunTimeExceptions.
      *
      * @param maintenanceDocument - a populated MaintenaceDocument instance.
      * @return boolean - returns true unless the object is in an invalid state.
      */
     protected boolean isDocumentValidForSave(MaintenanceDocument maintenanceDocument) {
 
         boolean success = true;
 
         success &= super.isDocumentOverviewValid(maintenanceDocument);
         success &= validateDocumentStructure((Document) maintenanceDocument);
         success &= validateMaintenanceDocument(maintenanceDocument);
         success &= validateGlobalBusinessObjectPersistable(maintenanceDocument);
         return success;
     }
 
     /**
      * This method makes sure the document itself is valid, and has the necessary fields populated to be routable.
      *
      * This is not a business rules test, rather its a structure test to make sure that the document will not cause
      * exceptions
      * before routing.
      *
      * @param document - document to be tested
      * @return false if the document is missing key values, true otherwise
      */
     protected boolean validateDocumentStructure(Document document) {
         boolean success = true;
 
         // document must have a populated documentNumber
         String documentHeaderId = document.getDocumentNumber();
         if (documentHeaderId == null || StringUtils.isEmpty(documentHeaderId)) {
             throw new ValidationException("Document has no document number, unable to proceed.");
         }
 
         return success;
     }
 
     /**
      * This method checks to make sure the document is a valid maintenanceDocument, and has the necessary values
      * populated such that
      * it will not cause exceptions in later routing or business rules testing.
      *
      * This is not a business rules test.
      *
      * @param maintenanceDocument - document to be tested
      * @return whether maintenance doc passes
      * @throws ValidationException
      */
     protected boolean validateMaintenanceDocument(MaintenanceDocument maintenanceDocument) {
         boolean success = true;
         Maintainable newMaintainable = maintenanceDocument.getNewMaintainableObject();
 
         // document must have a newMaintainable object
         if (newMaintainable == null) {
             throw new ValidationException(
                     "Maintainable object from Maintenance Document '" + maintenanceDocument.getDocumentTitle() +
                             "' is null, unable to proceed.");
         }
 
         // document's newMaintainable must contain an object (ie, not null)
         if (newMaintainable.getDataObject() == null) {
             throw new ValidationException("Maintainable's component data object is null.");
         }
 
         return success;
     }
 
     /**
      * This method checks whether this maint doc contains Global Business Objects, and if so, whether the GBOs are in a
      * persistable
      * state. This will return false if this method determines that the GBO will cause a SQL Exception when the
      * document
      * is
      * persisted.
      *
      * @param document
      * @return False when the method determines that the contained Global Business Object will cause a SQL Exception,
      *         and the
      *         document should not be saved. It will return True otherwise.
      */
     protected boolean validateGlobalBusinessObjectPersistable(MaintenanceDocument document) {
         boolean success = true;
 
         if (document.getNewMaintainableObject() == null) {
             return success;
         }
         if (document.getNewMaintainableObject().getDataObject() == null) {
             return success;
         }
         if (!(document.getNewMaintainableObject().getDataObject() instanceof GlobalBusinessObject)) {
             return success;
         }
 
         PersistableBusinessObject bo = (PersistableBusinessObject) document.getNewMaintainableObject().getDataObject();
         GlobalBusinessObject gbo = (GlobalBusinessObject) bo;
         return gbo.isPersistable();
     }
 
     /**
      * This method tests to make sure the MaintenanceDocument passed in is based on the class you are expecting.
      *
      * It does this based on the NewMaintainableObject of the MaintenanceDocument.
      *
      * @param document - MaintenanceDocument instance you want to test
      * @param clazz - class you are expecting the MaintenanceDocument to be based on
      * @return true if they match, false if not
      */
     protected boolean isCorrectMaintenanceClass(MaintenanceDocument document, Class clazz) {
         // disallow null arguments
         if (document == null || clazz == null) {
             throw new IllegalArgumentException("Null arguments were passed in.");
         }
 
         // compare the class names
         if (clazz.toString().equals(document.getNewMaintainableObject().getDataObjectClass().toString())) {
             return true;
         } else {
             return false;
         }
     }
 
     /**
      * This method accepts an object, and attempts to determine whether it is empty by this method's definition.
      *
      * OBJECT RESULT null false empty-string false whitespace false otherwise true
      *
      * If the result is false, it will add an object field error to the Global Errors.
      *
      * @param valueToTest - any object to test, usually a String
      * @param propertyName - the name of the property being tested
      * @return true or false, by the description above
      */
     protected boolean checkEmptyBOField(String propertyName, Object valueToTest, String parameter) {
         boolean success = true;
 
         success = checkEmptyValue(valueToTest);
 
         // if failed, then add a field error
         if (!success) {
             putFieldError(propertyName, RiceKeyConstants.ERROR_REQUIRED, parameter);
         }
 
         return success;
     }
 
     /**
      * This method accepts document field (such as , and attempts to determine whether it is empty by this method's
      * definition.
      *
      * OBJECT RESULT null false empty-string false whitespace false otherwise true
      *
      * If the result is false, it will add document field error to the Global Errors.
      *
      * @param valueToTest - any object to test, usually a String
      * @param propertyName - the name of the property being tested
      * @return true or false, by the description above
      */
     protected boolean checkEmptyDocumentField(String propertyName, Object valueToTest, String parameter) {
         boolean success = true;
         success = checkEmptyValue(valueToTest);
         if (!success) {
             putDocumentError(propertyName, RiceKeyConstants.ERROR_REQUIRED, parameter);
         }
         return success;
     }
 
     /**
      * This method accepts document field (such as , and attempts to determine whether it is empty by this method's
      * definition.
      *
      * OBJECT RESULT null false empty-string false whitespace false otherwise true
      *
      * It will the result as a boolean
      *
      * @param valueToTest - any object to test, usually a String
      */
     protected boolean checkEmptyValue(Object valueToTest) {
         boolean success = true;
 
         // if its not a string, only fail if its a null object
         if (valueToTest == null) {
             success = false;
         } else {
             // test for null, empty-string, or whitespace if its a string
             if (valueToTest instanceof String) {
                 if (StringUtils.isBlank((String) valueToTest)) {
                     success = false;
                 }
             }
         }
 
         return success;
     }
 
     /**
      * This method is used during debugging to dump the contents of the error map, including the key names. It is not
      * used by the
      * application in normal circumstances at all.
      */
     protected void showErrorMap() {
         if (GlobalVariables.getMessageMap().hasNoErrors()) {
             return;
         }
 
         for (Iterator i = GlobalVariables.getMessageMap().getAllPropertiesAndErrors().iterator(); i.hasNext(); ) {
             Map.Entry e = (Map.Entry) i.next();
 
             AutoPopulatingList errorList = (AutoPopulatingList) e.getValue();
             for (Iterator j = errorList.iterator(); j.hasNext(); ) {
                 ErrorMessage em = (ErrorMessage) j.next();
 
                 if (em.getMessageParameters() == null) {
                     LOG.error(e.getKey().toString() + " = " + em.getErrorKey());
                 } else {
                     LOG.error(e.getKey().toString() + " = " + em.getErrorKey() + " : " +
                             em.getMessageParameters().toString());
                 }
             }
         }
     }
 
     /**
      * @see MaintenanceDocumentRule#setupBaseConvenienceObjects(org.kuali.rice.krad.maintenance.MaintenanceDocument)
      */
     public void setupBaseConvenienceObjects(MaintenanceDocument document) {
         // setup oldAccount convenience objects, make sure all possible sub-objects are populated
         oldDataObject = document.getOldMaintainableObject().getDataObject();
         if (oldDataObject != null && oldDataObject instanceof PersistableBusinessObject) {
             ((PersistableBusinessObject) oldDataObject).refreshNonUpdateableReferences();
         }
 
         // setup newAccount convenience objects, make sure all possible sub-objects are populated
         newDataObject = document.getNewMaintainableObject().getDataObject();
         if (newDataObject instanceof PersistableBusinessObject) {
             ((PersistableBusinessObject) newDataObject).refreshNonUpdateableReferences();
         }
 
         dataObjectClass = document.getNewMaintainableObject().getDataObjectClass();
 
         // call the setupConvenienceObjects in the subclass, if a subclass exists
         setupConvenienceObjects();
     }
 
     public void setupConvenienceObjects() {
         // should always be overriden by subclass
     }
 
     /**
      * This method checks to make sure that if the foreign-key fields for the given reference attributes have any
      * fields filled out,that all fields are filled out.
      *
      * If any are filled out, but all are not, it will return false and add a global error message about the problem.
      *
      * @param referenceName - The name of the reference object, whose foreign-key fields must be all-or-none filled
      * out.
      * @return true if this is the case, false if not
      */
     protected boolean checkForPartiallyFilledOutReferenceForeignKeys(String referenceName) {
         boolean success = true;
 
         if (newDataObject instanceof PersistableBusinessObject) {
             ForeignKeyFieldsPopulationState fkFieldsState;
             fkFieldsState = getPersistenceStructureService()
                     .getForeignKeyFieldsPopulationState((PersistableBusinessObject) newDataObject, referenceName);
 
             // determine result
             if (fkFieldsState.isAnyFieldsPopulated() && !fkFieldsState.isAllFieldsPopulated()) {
                 success = false;
 
                 // add errors if appropriate
 
                 // get the full set of foreign-keys
                 List fKeys = new ArrayList(getPersistenceStructureService().getForeignKeysForReference(
                         newDataObject.getClass().asSubclass(PersistableBusinessObject.class), referenceName).keySet());
                 String fKeysReadable = consolidateFieldNames(fKeys, ", ").toString();
 
                 // walk through the missing fields
                 for (Iterator iter = fkFieldsState.getUnpopulatedFieldNames().iterator(); iter.hasNext(); ) {
                     String fieldName = (String) iter.next();
 
                     // get the human-readable name
                     String fieldNameReadable = getDataDictionaryService().getAttributeLabel(newDataObject.getClass(), fieldName);
 
                     // add a field error
                     putFieldError(fieldName, RiceKeyConstants.ERROR_DOCUMENT_MAINTENANCE_PARTIALLY_FILLED_OUT_REF_FKEYS,
                             new String[]{fieldNameReadable, fKeysReadable});
                 }
             }
         }
 
         return success;
     }
 
     /**
      * This method turns a list of field property names, into a delimited string of the human-readable names.
      *
      * @param fieldNames - List of fieldNames
      * @return A filled StringBuffer ready to go in an error message
      */
     protected StringBuffer consolidateFieldNames(List fieldNames, String delimiter) {
         StringBuffer sb = new StringBuffer();
 
         // setup some vars
         boolean firstPass = true;
         String delim = "";
 
         // walk through the list
         for (Iterator iter = fieldNames.iterator(); iter.hasNext(); ) {
             String fieldName = (String) iter.next();
 
             // get the human-readable name
             // add the new one, with the appropriate delimiter
             sb.append(delim + getDataDictionaryService().getAttributeLabel(newDataObject.getClass(), fieldName));
 
             // after the first item, start using a delimiter
             if (firstPass) {
                 delim = delimiter;
                 firstPass = false;
             }
         }
 
         return sb;
     }
 
     /**
      * This method translates the passed in field name into a human-readable attribute label.
      *
      * It assumes the existing newDataObject's class as the class to examine the fieldName for.
      *
      * @param fieldName The fieldName you want a human-readable label for.
      * @return A human-readable label, pulled from the DataDictionary.
      */
     protected String getFieldLabel(String fieldName) {
         return getDataDictionaryService().getAttributeLabel(newDataObject.getClass(), fieldName) + "(" +
                 getDataDictionaryService().getAttributeShortLabel(newDataObject.getClass(), fieldName) + ")";
     }
 
     /**
      * This method translates the passed in field name into a human-readable attribute label.
      *
      * It assumes the existing newDataObject's class as the class to examine the fieldName for.
      *
      * @param dataObjectClass The class to use in combination with the fieldName.
      * @param fieldName The fieldName you want a human-readable label for.
      * @return A human-readable label, pulled from the DataDictionary.
      */
     protected String getFieldLabel(Class dataObjectClass, String fieldName) {
         return getDataDictionaryService().getAttributeLabel(dataObjectClass, fieldName) + "(" +
                 getDataDictionaryService().getAttributeShortLabel(dataObjectClass, fieldName) + ")";
     }
 
     /**
      * Gets the newDataObject attribute.
      *
      * @return Returns the newDataObject.
      */
     protected final Object getNewDataObject() {
         return newDataObject;
     }
 
     protected void setNewDataObject(Object newDataObject) {
         this.newDataObject = newDataObject;
     }
 
     /**
      * Gets the oldDataObject attribute.
      *
      * @return Returns the oldDataObject.
      */
     protected final Object getOldDataObject() {
         return oldDataObject;
     }
 
     public boolean processCustomAddCollectionLineBusinessRules(MaintenanceDocument document, String collectionName,
             PersistableBusinessObject line) {
         return true;
     }
 
     protected final BusinessObjectService getBoService() {
         if (boService == null) {
             this.boService = KRADServiceLocator.getBusinessObjectService();
         }
         return boService;
     }
 
     public final void setBoService(BusinessObjectService boService) {
         this.boService = boService;
     }
 
     protected final ConfigurationService getConfigService() {
         if (configService == null) {
             this.configService = KRADServiceLocator.getKualiConfigurationService();
         }
         return configService;
     }
 
     public final void setConfigService(ConfigurationService configService) {
         this.configService = configService;
     }
 
     protected final DataDictionaryService getDdService() {
         if (ddService == null) {
             this.ddService = KRADServiceLocatorWeb.getDataDictionaryService();
         }
         return ddService;
     }
 
     public final void setDdService(DataDictionaryService ddService) {
         this.ddService = ddService;
     }
 
     protected final DictionaryValidationService getDictionaryValidationService() {
         if (dictionaryValidationService == null) {
             this.dictionaryValidationService = KRADServiceLocatorWeb.getDictionaryValidationService();
         }
         return dictionaryValidationService;
     }
 
     public final void setDictionaryValidationService(DictionaryValidationService dictionaryValidationService) {
         this.dictionaryValidationService = dictionaryValidationService;
     }
     public PersonService getPersonService() {
         if (personService == null) {
             this.personService = KimApiServiceLocator.getPersonService();
         }
         return personService;
     }
 
     public void setPersonService(PersonService personService) {
         this.personService = personService;
     }
 
     public DateTimeService getDateTimeService() {
         return CoreApiServiceLocator.getDateTimeService();
     }
 
     protected RoleService getRoleService() {
         if (this.roleService == null) {
             this.roleService = KimApiServiceLocator.getRoleService();
         }
         return this.roleService;
     }
 
     protected DataObjectMetaDataService getDataObjectMetaDataService() {
         if (dataObjectMetaDataService == null) {
             this.dataObjectMetaDataService = KRADServiceLocatorWeb.getDataObjectMetaDataService();
         }
         return dataObjectMetaDataService;
     }
 
     public void setDataObjectMetaDataService(DataObjectMetaDataService dataObjectMetaDataService) {
         this.dataObjectMetaDataService = dataObjectMetaDataService;
     }
 
     protected final PersistenceStructureService getPersistenceStructureService() {
         if (persistenceStructureService == null) {
             this.persistenceStructureService = KRADServiceLocator.getPersistenceStructureService();
         }
         return persistenceStructureService;
     }
 
     public final void setPersistenceStructureService(PersistenceStructureService persistenceStructureService) {
         this.persistenceStructureService = persistenceStructureService;
     }
 
     public WorkflowDocumentService getWorkflowDocumentService() {
         if (workflowDocumentService == null) {
             this.workflowDocumentService = KRADServiceLocatorWeb.getWorkflowDocumentService();
         }
         return workflowDocumentService;
     }
 
     public void setWorkflowDocumentService(WorkflowDocumentService workflowDocumentService) {
         this.workflowDocumentService = workflowDocumentService;
     }
 
     public DataObjectAuthorizationService getDataObjectAuthorizationService() {
         if (dataObjectAuthorizationService == null) {
             this.dataObjectAuthorizationService = KRADServiceLocatorWeb.getDataObjectAuthorizationService();
         }
         return dataObjectAuthorizationService;
     }
 
     public void setDataObjectAuthorizationService(DataObjectAuthorizationService dataObjectAuthorizationService) {
         this.dataObjectAuthorizationService = dataObjectAuthorizationService;
     }
 
 }