/*

  * Copyright 2005-2007 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.kns.util;

 import org.apache.commons.beanutils.PropertyUtils;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.CoreApiServiceLocator;

 import org.kuali.rice.core.api.encryption.EncryptionService;

 import org.kuali.rice.core.util.ClassLoaderUtils;

 import org.kuali.rice.core.web.format.FormatException;

 import org.kuali.rice.kew.util.KEWConstants;

 import org.kuali.rice.kim.bo.Person;

 import org.kuali.rice.kns.datadictionary.FieldDefinition;

 import org.kuali.rice.kns.datadictionary.MaintainableCollectionDefinition;

 import org.kuali.rice.kns.datadictionary.control.ButtonControlDefinition;

 import org.kuali.rice.kns.web.ui.Field;

 import org.kuali.rice.kns.web.ui.PropertyRenderingConfigElement;

 import org.kuali.rice.kns.web.ui.Row;

 import org.kuali.rice.kns.web.ui.Section;

 import org.kuali.rice.krad.bo.MutableInactivatable;

 import org.kuali.rice.krad.datadictionary.control.ControlDefinition;

 import org.kuali.rice.kns.datadictionary.control.CurrencyControlDefinition;

 import org.kuali.rice.kns.datadictionary.control.KualiUserControlDefinition;

 import org.kuali.rice.kns.datadictionary.control.LinkControlDefinition;

 import org.kuali.rice.kns.document.authorization.FieldRestriction;

 import org.kuali.rice.kns.document.authorization.MaintenanceDocumentRestrictions;

 import org.kuali.rice.kns.inquiry.Inquirable;

 import org.kuali.rice.kns.lookup.HtmlData;

 import org.kuali.rice.kns.lookup.HtmlData.AnchorHtmlData;

 import org.kuali.rice.kns.lookup.LookupUtils;

 import org.kuali.rice.kns.service.BusinessObjectMetaDataService;

 import org.kuali.rice.kns.service.KNSServiceLocator;

 import org.kuali.rice.krad.bo.BusinessObject;

 import org.kuali.rice.krad.bo.BusinessObjectRelationship;

 import org.kuali.rice.krad.bo.KualiCode;

 import org.kuali.rice.krad.bo.PersistableBusinessObject;

 import org.kuali.rice.kns.datadictionary.BusinessObjectEntry;

 import org.kuali.rice.krad.datadictionary.exception.UnknownBusinessClassAttributeException;

 import org.kuali.rice.krad.datadictionary.mask.MaskFormatter;

 import org.kuali.rice.krad.keyvalues.IndicatorValuesFinder;

 import org.kuali.rice.krad.keyvalues.KeyValuesFinder;

 import org.kuali.rice.krad.keyvalues.PersistableBusinessObjectValuesFinder;

 import org.kuali.rice.krad.valuefinder.ValueFinder;

 import org.kuali.rice.krad.service.BusinessObjectDictionaryService;

 import org.kuali.rice.krad.service.DataDictionaryService;

 import org.kuali.rice.krad.service.KRADServiceLocatorWeb;

 import org.kuali.rice.krad.service.KualiModuleService;

 import org.kuali.rice.krad.service.ModuleService;

 import org.kuali.rice.krad.util.ExternalizableBusinessObjectUtils;

 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.MessageMap;

 import org.kuali.rice.krad.util.ObjectUtils;

 import java.lang.reflect.InvocationTargetException;

 import java.security.GeneralSecurityException;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 /**

  * This class is used to build Field objects from underlying data dictionary and general utility methods for handling fields.

  */

 public final class FieldUtils {

     private static final org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(FieldUtils.class);

     private static DataDictionaryService dataDictionaryService = null;

     private static BusinessObjectMetaDataService businessObjectMetaDataService = null;

     private static BusinessObjectDictionaryService businessObjectDictionaryService = null;

     private static KualiModuleService kualiModuleService = null;

         private FieldUtils() {

                 throw new UnsupportedOperationException("do not call");

         }

     public static void setInquiryURL(Field field, BusinessObject bo, String propertyName) {

         HtmlData inquiryHref = new AnchorHtmlData(KRADConstants.EMPTY_STRING, KRADConstants.EMPTY_STRING);

         Boolean b = getBusinessObjectDictionaryService().noInquiryFieldInquiry(bo.getClass(), propertyName);

         if (b == null || !b.booleanValue()) {

             Class<Inquirable> inquirableClass = getBusinessObjectDictionaryService().getInquirableClass(bo.getClass());

             Boolean b2 = getBusinessObjectDictionaryService().forceLookupResultFieldInquiry(bo.getClass(), propertyName);

             Inquirable inq = null;

             try {

                 if ( inquirableClass != null ) {

                     inq = inquirableClass.newInstance();

                 } else {

                     inq = KNSServiceLocator.getKualiInquirable();

                     if ( LOG.isDebugEnabled() ) {

                         LOG.debug( "Default Inquirable Class: " + inq.getClass() );

         }

                 }

                 inquiryHref = inq.getInquiryUrl(bo, propertyName, null == b2 ? false : b2.booleanValue() );

             } catch ( Exception ex ) {

                 LOG.error("unable to create inquirable to get inquiry URL", ex );

             }

         }

         field.setInquiryURL(inquiryHref);

     }

         /**

          * Sets the control on the field based on the data dictionary definition

          *

          * @param businessObjectClass

          *            - business object class for the field attribute

          * @param attributeName

          *            - name of the attribute whose {@link Field} is being set

          * @param convertForLookup

          *            - whether the field is being build for lookup search which impacts the control chosen

          * @param field

          *            - {@link Field} to set control on

          */

         public static void setFieldControl(Class businessObjectClass, String attributeName, boolean convertForLookup,

                         Field field) {

                 ControlDefinition control = getDataDictionaryService().getAttributeControlDefinition(businessObjectClass,

                                 attributeName);

                 String fieldType = Field.TEXT;

                 if (control != null) {

                         if (control.isSelect()) {

                                 if (control.getScript() != null && control.getScript().length() > 0) {

                                         fieldType = Field.DROPDOWN_SCRIPT;

                                         field.setScript(control.getScript());

                                 } else {

                                         fieldType = Field.DROPDOWN;

                                 }

                         }

                         if (control.isMultiselect()) {

                                 fieldType = Field.MULTISELECT;

                         }

                         if (control.isCheckbox()) {

                                 fieldType = Field.CHECKBOX;

                         }

                         if (control.isRadio()) {

                                 fieldType = Field.RADIO;

                         }

                         if (control.isHidden()) {

                                 fieldType = Field.HIDDEN;

                         }

                         if (control.isKualiUser()) {

                                 fieldType = Field.KUALIUSER;

                                 KualiUserControlDefinition kualiUserControl = (KualiUserControlDefinition) control;

                                 field.setUniversalIdAttributeName(kualiUserControl.getUniversalIdAttributeName());

                                 field.setUserIdAttributeName(kualiUserControl.getUserIdAttributeName());

                                 field.setPersonNameAttributeName(kualiUserControl.getPersonNameAttributeName());

                         }

                         if (control.isWorkflowWorkgroup()) {

                                 fieldType = Field.WORKFLOW_WORKGROUP;

                         }

                         if (control.isFile()) {

                                 fieldType = Field.FILE;

                         }

                         if (control.isTextarea() && !convertForLookup) {

                                 fieldType = Field.TEXT_AREA;

                         }

                         if (control.isLookupHidden()) {

                                 fieldType = Field.LOOKUP_HIDDEN;

                         }

                         if (control.isLookupReadonly()) {

                                 fieldType = Field.LOOKUP_READONLY;

                         }

                         if (control.isCurrency()) {

                                 fieldType = Field.CURRENCY;

                         }

                         if (control.isButton()) {

                                 fieldType = Field.BUTTON;

                         }

                         if (control.isLink()) {

                                 fieldType = Field.LINK;

                         }

                         if (Field.CURRENCY.equals(fieldType) && control instanceof CurrencyControlDefinition) {

                                 CurrencyControlDefinition currencyControl = (CurrencyControlDefinition) control;

                                 field.setStyleClass("amount");

                                 field.setSize(currencyControl.getSize());

                                 field.setFormattedMaxLength(currencyControl.getFormattedMaxLength());

                         }

                         // for text controls, set size attribute

                         if (Field.TEXT.equals(fieldType)) {

                                 Integer size = control.getSize();

                                 if (size != null) {

                                         field.setSize(size.intValue());

                                 } else {

                                         field.setSize(30);

                                 }

                                 field.setDatePicker(control.isDatePicker());

                                 field.setRanged(control.isRanged());

                         }

                         if (Field.WORKFLOW_WORKGROUP.equals(fieldType)) {

                                 Integer size = control.getSize();

                                 if (size != null) {

                                         field.setSize(size.intValue());

                                 } else {

                                         field.setSize(30);

                                 }

                         }

                         // for text area controls, set rows and cols attributes

                         if (Field.TEXT_AREA.equals(fieldType)) {

                                 Integer rows = control.getRows();

                                 if (rows != null) {

                                         field.setRows(rows.intValue());

                                 } else {

                                         field.setRows(3);

                                 }

                                 Integer cols = control.getCols();

                                 if (cols != null) {

                                         field.setCols(cols.intValue());

                                 } else {

                                         field.setCols(40);

                                 }

                                 field.setExpandedTextArea(control.isExpandedTextArea());

                         }

                         // for dropdown and radio, get instance of specified KeyValuesFinder and set field values

                         if (Field.DROPDOWN.equals(fieldType) || Field.RADIO.equals(fieldType)

                                         || Field.DROPDOWN_SCRIPT.equals(fieldType)

                                         || Field.MULTISELECT.equals(fieldType)) {

                                 String keyFinderClassName = control.getValuesFinderClass();

                                 if (StringUtils.isNotBlank(keyFinderClassName)) {

                                         try {

                                                 Class keyFinderClass = ClassLoaderUtils.getClass(keyFinderClassName);

                                                 KeyValuesFinder finder = (KeyValuesFinder) keyFinderClass.newInstance();

                                                 if (finder != null) {

                                                         if (finder instanceof PersistableBusinessObjectValuesFinder) {

                                                                 ((PersistableBusinessObjectValuesFinder) finder)

                                                                                 .setBusinessObjectClass(ClassLoaderUtils.getClass(control

                                                 .getBusinessObjectClass()));

                                                                 ((PersistableBusinessObjectValuesFinder) finder).setKeyAttributeName(control

                                         .getKeyAttribute());

                                                                 ((PersistableBusinessObjectValuesFinder) finder).setLabelAttributeName(control

                                                                                 .getLabelAttribute());

                                                                 if (control.getIncludeBlankRow() != null) {

                                                                         ((PersistableBusinessObjectValuesFinder) finder).setIncludeBlankRow(control

                                                                                         .getIncludeBlankRow());

                                                                 }

                                                                 ((PersistableBusinessObjectValuesFinder) finder).setIncludeKeyInDescription(control

                                         .getIncludeKeyInLabel());

                                                         }

                                                         field.setFieldValidValues(finder.getKeyValues());

                                                         field.setFieldInactiveValidValues(finder.getKeyValues(false));

                                                 }

                                         } catch (InstantiationException e) {

                                                 LOG.error("Unable to get new instance of finder class: " + keyFinderClassName);

                                                 throw new RuntimeException("Unable to get new instance of finder class: " + keyFinderClassName);

                                         } catch (IllegalAccessException e) {

                                                 LOG.error("Unable to get new instance of finder class: " + keyFinderClassName);

                                                 throw new RuntimeException("Unable to get new instance of finder class: " + keyFinderClassName);

                                         }

                                 }

                         }

                         if (Field.CHECKBOX.equals(fieldType) && convertForLookup) {

                                 fieldType = Field.RADIO;

                                 field.setFieldValidValues(IndicatorValuesFinder.INSTANCE.getKeyValues());

                         }

                         // for button control

                         if (Field.BUTTON.equals(fieldType)) {

                                 ButtonControlDefinition buttonControl = (ButtonControlDefinition) control;

                                 field.setImageSrc(buttonControl.getImageSrc());

                                 field.setStyleClass(buttonControl.getStyleClass());

                         }

                         // for link control

                         if (Field.LINK.equals(fieldType)) {

                                 LinkControlDefinition linkControl = (LinkControlDefinition) control;

                                 field.setStyleClass(linkControl.getStyleClass());

                                 field.setTarget(linkControl.getTarget());

                                 field.setHrefText(linkControl.getHrefText());

                         }

                 }

                 field.setFieldType(fieldType);

         }

     /**

      * Builds up a Field object based on the propertyName and business object class.

      *

      * See KULRICE-2480 for info on convertForLookup flag

      *

      * @param propertyName

      * @return Field

      */

     public static Field getPropertyField(Class businessObjectClass, String attributeName, boolean convertForLookup) {

         Field field = new Field();

         field.setPropertyName(attributeName);

         field.setFieldLabel(getDataDictionaryService().getAttributeLabel(businessObjectClass, attributeName));

         setFieldControl(businessObjectClass, attributeName, convertForLookup, field);

         Boolean fieldRequired = getBusinessObjectDictionaryService().getLookupAttributeRequired(businessObjectClass, attributeName);

         if (fieldRequired != null) {

             field.setFieldRequired(fieldRequired.booleanValue());

         }

         Integer maxLength = getDataDictionaryService().getAttributeMaxLength(businessObjectClass, attributeName);

         if (maxLength != null) {

             field.setMaxLength(maxLength.intValue());

         }

         Boolean upperCase = null;

         try {

             upperCase = getDataDictionaryService().getAttributeForceUppercase(businessObjectClass, attributeName);

         }

         catch (UnknownBusinessClassAttributeException t) {

                 // do nothing

                 LOG.warn( "UnknownBusinessClassAttributeException in fieldUtils.getPropertyField() : " + t.getMessage() );

         }

         if (upperCase != null) {

             field.setUpperCase(upperCase.booleanValue());

         }

                 if (!businessObjectClass.isInterface()) {

                         try {

                                 field.setFormatter(

                         ObjectUtils.getFormatterWithDataDictionary(businessObjectClass.newInstance(), attributeName));

                         } catch (InstantiationException e) {

                                 LOG.info("Unable to get new instance of business object class: " + businessObjectClass.getName(), e);

                                 // just swallow exception and leave formatter blank

                         } catch (IllegalAccessException e) {

                                 LOG.info("Unable to get new instance of business object class: " + businessObjectClass.getName(), e);

                                 // just swallow exception and leave formatter blank

                         }

                 }

         // set Field help properties

         field.setBusinessObjectClassName(businessObjectClass.getName());

         field.setFieldHelpName(attributeName);

         field.setFieldHelpSummary(getDataDictionaryService().getAttributeSummary(businessObjectClass, attributeName));

         return field;

     }

         /**

          * For attributes that are codes (determined by whether they have a

          * reference to a KualiCode bo and similar naming) sets the name as an

          * additional display property

          * 

          * @param businessObjectClass -

          *            class containing attribute

          * @param attributeName - 

          *            name of attribute in the business object

          * @param field - 

          *            property display element

          */

         public static void setAdditionalDisplayPropertyForCodes(Class businessObjectClass, String attributeName, PropertyRenderingConfigElement field) {

                 try {

                         BusinessObjectRelationship relationship = getBusinessObjectMetaDataService().getBusinessObjectRelationship(

                                         (BusinessObject) businessObjectClass.newInstance(), attributeName);

                         if (relationship != null && attributeName.startsWith(relationship.getParentAttributeName())

                                         && KualiCode.class.isAssignableFrom(relationship.getRelatedClass())) {

                                 field.setAdditionalDisplayPropertyName(relationship.getParentAttributeName() + "."

                                                 + KRADPropertyConstants.NAME);

                         }

                 } catch (Exception e) {

                         throw new RuntimeException("Cannot get new instance of class to check for KualiCode references: "

                                         + e.getMessage());

                 }

         }

     /**

      * Wraps each Field in the list into a Row.

      *

      * @param fields

      * @return List of Row objects

      */

     public static List wrapFields(List fields) {

         return wrapFields(fields, KRADConstants.DEFAULT_NUM_OF_COLUMNS);

     }

     /**

      * This method is to implement multiple columns where the numberOfColumns is obtained from data dictionary.

      *

      * @param fields

      * @param numberOfColumns

      * @return

      */

     public static List<Row> wrapFields(List<Field> fields, int numberOfColumns) {

         List<Row> rows = new ArrayList();

         List<Field> fieldOnlyList = new ArrayList();

         List<Field> visableFields = getVisibleFields(fields);

             List<Field> nonVisableFields = getNonVisibleFields(fields);

         int fieldsPosition = 0;

         for (Field element : visableFields) {

             if (Field.SUB_SECTION_SEPARATOR.equals(element.getFieldType()) || Field.CONTAINER.equals(element.getFieldType())) {

                 fieldsPosition = createBlankSpace(fieldOnlyList, rows, numberOfColumns, fieldsPosition);

                 List fieldList = new ArrayList();

                 fieldList.add(element);

                 rows.add(new Row(fieldList));

             }

             else {

                 if (fieldsPosition < numberOfColumns) {

                     fieldOnlyList.add(element);

                     fieldsPosition++;

                 }

                 else {

                     rows.add(new Row(new ArrayList(fieldOnlyList)));

                     fieldOnlyList.clear();

                     fieldOnlyList.add(element);

                     fieldsPosition = 1;

                 }

             }

         }

         createBlankSpace(fieldOnlyList, rows, numberOfColumns, fieldsPosition);

      // Add back the non Visible Rows

             if(nonVisableFields != null && !nonVisableFields.isEmpty()){

                     Row nonVisRow = new Row();

                     nonVisRow.setFields(nonVisableFields);

                     rows.add(nonVisRow);

             }

         return rows;

     }

     private static List<Field> getVisibleFields(List<Field> fields){

             List<Field> rList = new ArrayList<Field>();

                    for(Field f: fields){

                            if(!Field.HIDDEN.equals(f.getFieldType()) &&  !Field.BLANK_SPACE.equals(f.getFieldType())){

                                    rList.add(f);

                            }

                    }

             return rList;

     }

     private static List<Field> getNonVisibleFields(List<Field> fields){

             List<Field> rList = new ArrayList<Field>();

                    for(Field f: fields){

                            if(Field.HIDDEN.equals(f.getFieldType()) || Field.BLANK_SPACE.equals(f.getFieldType())){

                                    rList.add(f);

                            }

                    }

             return rList;

     }

     /**

      * This is a helper method to create and add a blank space to the fieldOnly List.

      *

      * @param fieldOnlyList

      * @param rows

      * @param numberOfColumns

      * @return fieldsPosition

      */

     private static int createBlankSpace(List<Field> fieldOnlyList, List<Row> rows, int numberOfColumns, int fieldsPosition) {

         int fieldOnlySize = fieldOnlyList.size();

         if (fieldOnlySize > 0) {

             for (int i = 0; i < (numberOfColumns - fieldOnlySize); i++) {

                 Field empty = new Field();

                 empty.setFieldType(Field.BLANK_SPACE);

                 // Must be set or AbstractLookupableHelperServiceImpl::preprocessDateFields dies

                 empty.setPropertyName(Field.BLANK_SPACE);

                 fieldOnlyList.add(empty);

             }

             rows.add(new Row(new ArrayList(fieldOnlyList)));

             fieldOnlyList.clear();

             fieldsPosition = 0;

         }

         return fieldsPosition;

     }

     /**

      * Wraps list of fields into a Field of type CONTAINER

      *

      * @param name name for the field

      * @param label label for the field

      * @param fields list of fields that should be contained in the container

      * @return Field of type CONTAINER

      */

     public static Field constructContainerField(String name, String label, List fields) {

         return constructContainerField(name, label, fields, KRADConstants.DEFAULT_NUM_OF_COLUMNS);

     }

     /**

      * Wraps list of fields into a Field of type CONTAINER and arrange them into multiple columns.

      *

      * @param name name for the field

      * @param label label for the field

      * @param fields list of fields that should be contained in the container

      * @param numberOfColumns the number of columns for each row that the fields should be arranged into

      * @return Field of type CONTAINER

      */

     public static Field constructContainerField(String name, String label, List fields, int numberOfColumns) {

         Field containerField = new Field();

         containerField.setPropertyName(name);

         containerField.setFieldLabel(label);

         containerField.setFieldType(Field.CONTAINER);

         containerField.setNumberOfColumnsForCollection(numberOfColumns);

         List rows = wrapFields(fields, numberOfColumns);

         containerField.setContainerRows(rows);

         return containerField;

     }

     /**

      * Uses reflection to get the property names of the business object, then checks for a matching field property name. If found,

      * takes the value of the business object property and populates the field value. Iterates through for all fields in the list.

      *

      * @param fields list of Field object to populate

      * @param bo business object to get field values from

      * @return List of fields with values populated from business object.

      */

     public static List<Field> populateFieldsFromBusinessObject(List<Field> fields, BusinessObject bo) {

         List<Field> populatedFields = new ArrayList<Field>();

         if (bo instanceof PersistableBusinessObject) {

                 ((PersistableBusinessObject) bo).refreshNonUpdateableReferences();

         }

         for (Iterator<Field> iter = fields.iterator(); iter.hasNext();) {

             Field element = iter.next();

             if (element.containsBOData()) {

                 String propertyName = element.getPropertyName();

                 // See: https://test.kuali.org/jira/browse/KULCOA-1185

                 // Properties that could not possibly be set by the BusinessObject should be ignored.

                 // (https://test.kuali.org/jira/browse/KULRNE-4354; this code was killing the src attribute of IMAGE_SUBMITs).

                 if (isPropertyNested(propertyName) && !isObjectTreeNonNullAllTheWayDown(bo, propertyName) && ((!element.getFieldType().equals(Field.IMAGE_SUBMIT)) && !(element.getFieldType().equals(Field.CONTAINER)) && (!element.getFieldType().equals(Field.QUICKFINDER)))) {

                     element.setPropertyValue(null);

                 }

                 else if (PropertyUtils.isReadable(bo, propertyName)) {

                         populateReadableField(element, bo);

                 }

                             if (StringUtils.isNotBlank(element.getAlternateDisplayPropertyName())) {

                                     String alternatePropertyValue = ObjectUtils.getFormattedPropertyValueUsingDataDictionary(bo, element

                                                     .getAlternateDisplayPropertyName());

                                     element.setAlternateDisplayPropertyValue(alternatePropertyValue);

                             }

                             if (StringUtils.isNotBlank(element.getAdditionalDisplayPropertyName())) {

                                     String additionalPropertyValue = ObjectUtils.getFormattedPropertyValueUsingDataDictionary(bo, element

                                                     .getAdditionalDisplayPropertyName());

                                     element.setAdditionalDisplayPropertyValue(additionalPropertyValue);

                             }

             }

             populatedFields.add(element);

         }

         return populatedFields;

     }

     public static void populateReadableField(Field field, BusinessObject businessObject){

                 Object obj = ObjectUtils.getNestedValue(businessObject, field.getPropertyName());

                 if (obj != null) {

                         String formattedValue = ObjectUtils.getFormattedPropertyValueUsingDataDictionary(businessObject, field.getPropertyName());

                         field.setPropertyValue(formattedValue);

             // for user fields, attempt to pull the principal ID and person's name from the source object

             if ( field.getFieldType().equals(Field.KUALIUSER) ) {

                     // this is supplemental, so catch and log any errors

                     try {

                             if ( StringUtils.isNotBlank(field.getUniversalIdAttributeName()) ) {

                                     Object principalId = ObjectUtils.getNestedValue(businessObject, field.getUniversalIdAttributeName());

                                     if ( principalId != null ) {

                                             field.setUniversalIdValue(principalId.toString());

                                     }

                             }

                             if ( StringUtils.isNotBlank(field.getPersonNameAttributeName()) ) {

                                     Object personName = ObjectUtils.getNestedValue(businessObject, field.getPersonNameAttributeName());

                                     if ( personName != null ) {

                                             field.setPersonNameValue( personName.toString() );

                                     }

                             }

                     } catch ( Exception ex ) {

                             LOG.warn( "Unable to get principal ID or person name property in FieldBridge.", ex );

                     }

             }

         }

         populateSecureField(field, obj);

     }

     public static void populateSecureField(Field field, Object fieldValue){

         // set encrypted & masked value if user does not have permission to see real value in UI

         // element.isSecure() => a non-null AttributeSecurity object is set in the field

         if (field.isSecure()) {

             try {

                 if (fieldValue != null && fieldValue.toString().endsWith(EncryptionService.HASH_POST_PREFIX)) {

                         field.setEncryptedValue(fieldValue.toString());

                 }

                 else {

                         field.setEncryptedValue(CoreApiServiceLocator.getEncryptionService().encrypt(fieldValue) + EncryptionService.ENCRYPTION_POST_PREFIX);

                 }

             }

             catch (GeneralSecurityException e) {

                 throw new RuntimeException("Unable to encrypt secure field " + e.getMessage());

             }

             //field.setDisplayMaskValue(field.getAttributeSecurity().getDisplayMaskValue(fieldValue));

         }

     }

     /**

      * This method indicates whether or not propertyName refers to a nested attribute.

      *

      * @param propertyName

      * @return true if propertyName refers to a nested property (e.g. "x.y")

      */

     static private boolean isPropertyNested(String propertyName) {

         return -1 != propertyName.indexOf('.');

     }

     /**

      * This method verifies that all of the parent objects of propertyName are non-null.

      *

      * @param bo

      * @param propertyName

      * @return true if all parents are non-null, otherwise false

      */

     static private boolean isObjectTreeNonNullAllTheWayDown(BusinessObject bo, String propertyName) {

         String[] propertyParts = propertyName.split("\\.");

         StringBuffer property = new StringBuffer();

         for (int i = 0; i < propertyParts.length - 1; i++) {

             property.append((0 == property.length()) ? "" : ".").append(propertyParts[i]);

             try {

                 if (null == PropertyUtils.getNestedProperty(bo, property.toString())) {

                     return false;

                 }

             }

             catch (Throwable t) {

                 LOG.debug("Either getter or setter not specified for property \"" + property.toString() + "\"", t);

                 return false;

             }

         }

         return true;

     }

     /**

      * @param bo

      * @param propertyName

      * @return true if one (or more) of the intermediate objects in the given propertyName is null

      */

     private static boolean containsIntermediateNull(Object bo, String propertyName) {

         boolean containsNull = false;

         if (StringUtils.contains(propertyName, ".")) {

             String prefix = StringUtils.substringBefore(propertyName, ".");

             Object propertyValue = ObjectUtils.getPropertyValue(bo, prefix);

             if (propertyValue == null) {

                 containsNull = true;

             }

             else {

                 String suffix = StringUtils.substringAfter(propertyName, ".");

                 containsNull = containsIntermediateNull(propertyValue, suffix);

             }

         }

         return containsNull;

     }

     /**

      * Uses reflection to get the property names of the business object, then checks for the property name as a key in the passed

      * map. If found, takes the value from the map and sets the business object property.

      *

      * @param bo

      * @param fieldValues

      * @return Cached Values from any formatting failures

      */

     public static Map populateBusinessObjectFromMap(BusinessObject bo, Map fieldValues) {

         return populateBusinessObjectFromMap(bo, fieldValues, "");

     }

     /**

      * Uses reflection to get the property names of the business object, then checks for the property name as a key in the passed

      * map. If found, takes the value from the map and sets the business object property.

      *

      * @param bo

      * @param fieldValues

      * @param propertyNamePrefix this value will be prepended to all property names in the returned unformattable values map

      * @return Cached Values from any formatting failures

      */

     public static Map populateBusinessObjectFromMap(BusinessObject bo, Map<String, ?> fieldValues, String propertyNamePrefix) {

         Map cachedValues = new HashMap();

         MessageMap errorMap = GlobalVariables.getMessageMap();

         try {

             for (Iterator<String> iter = fieldValues.keySet().iterator(); iter.hasNext();) {

                 String propertyName = iter.next();

                 if (propertyName.endsWith(KRADConstants.CHECKBOX_PRESENT_ON_FORM_ANNOTATION)) {

                     // since checkboxes do not post values when unchecked, this code detects whether a checkbox was unchecked, and

                     // sets the value to false.

                     if (StringUtils.isNotBlank((String) fieldValues.get(propertyName))) {

                         String checkboxName = StringUtils.removeEnd(propertyName, KRADConstants.CHECKBOX_PRESENT_ON_FORM_ANNOTATION);

                         String checkboxValue = (String) fieldValues.get(checkboxName);

                         if (checkboxValue == null) {

                             // didn't find a checkbox value, assume that it is unchecked

                             if (PropertyUtils.isWriteable(bo, checkboxName)) {

                                 Class type = ObjectUtils.easyGetPropertyType(bo, checkboxName);

                                 if (type == Boolean.TYPE || type == Boolean.class) {

                                     // ASSUMPTION: unchecked means false

                                     ObjectUtils.setObjectProperty(bo, checkboxName, type, "false");

                                 }

                             }

                         }

                     }

                     // else, if not null, then it has a value, and we'll let the rest of the code handle it when the param is processed on

                     // another iteration (may be before or after this iteration).

                 }

                 else if (PropertyUtils.isWriteable(bo, propertyName) && fieldValues.get(propertyName) != null ) {

                     // if the field propertyName is a valid property on the bo class

                     Class type = ObjectUtils.easyGetPropertyType(bo, propertyName);

                     try {

                             Object fieldValue = fieldValues.get(propertyName);

                         ObjectUtils.setObjectProperty(bo, propertyName, type, fieldValue);

                     }

                     catch (FormatException e) {

                         cachedValues.put(propertyNamePrefix + propertyName, fieldValues.get(propertyName));

                         errorMap.putError(propertyNamePrefix + propertyName, e.getErrorKey(), e.getErrorArgs());

                     }

                 }

             }

         }

         catch (IllegalAccessException e) {

             LOG.error("unable to populate business object" + e.getMessage());

             throw new RuntimeException(e.getMessage(), e);

         }

         catch (InvocationTargetException e) {

             LOG.error("unable to populate business object" + e.getMessage());

             throw new RuntimeException(e.getMessage(), e);

         }

         catch (NoSuchMethodException e) {

             LOG.error("unable to populate business object" + e.getMessage());

             throw new RuntimeException(e.getMessage(), e);

         }

         return cachedValues;

     }

     /**

      * Does prefixing and read only settings of a Field UI for display in a maintenance document.

      *

      * @param field - the Field object to be displayed

      * @param keyFieldNames - Primary key property names for the business object being maintained.

      * @param namePrefix - String to prefix Field names with.

      * @param maintenanceAction - The maintenance action requested.

      * @param readOnly - Indicates whether all fields should be read only.

      * @return Field

      */

     public static Field fixFieldForForm(Field field, List keyFieldNames, String namePrefix, String maintenanceAction, boolean readOnly, MaintenanceDocumentRestrictions auths, String documentStatus, String documentInitiatorPrincipalId) {

         String propertyName = field.getPropertyName();

         // We only need to do the following processing if the field is not a sub section header

         if (field.containsBOData()) {

             // don't prefix submit fields, must start with dispatch parameter name

             if (!propertyName.startsWith(KRADConstants.DISPATCH_REQUEST_PARAMETER)) {

                 // if the developer hasn't set a specific prefix use the one supplied

                 if (field.getPropertyPrefix() == null || field.getPropertyPrefix().equals("")) {

                     field.setPropertyName(namePrefix + propertyName);

                 }

                 else {

                     field.setPropertyName(field.getPropertyPrefix() + "." + propertyName);

                 }

             }

             if (readOnly) {

                 field.setReadOnly(true);

             }

             // set keys read only for edit

             if ( KRADConstants.MAINTENANCE_EDIT_ACTION.equals(maintenanceAction) ) {

                     if (keyFieldNames.contains(propertyName) ) {

                         field.setReadOnly(true);

                         field.setKeyField(true);

                     } else if ( StringUtils.isNotBlank( field.getUniversalIdAttributeName() )

                                     && keyFieldNames.contains(field.getUniversalIdAttributeName() ) ) {

                             // special handling for when the principal ID is the PK field for a record

                             // this causes locking down of the user ID field

                         field.setReadOnly(true);

                         field.setKeyField(true);

                     }

             }

             // apply any authorization restrictions to field availability on the UI

             applyAuthorization(field, maintenanceAction, auths, documentStatus, documentInitiatorPrincipalId);

             // if fieldConversions specified, prefix with new constant

             if (StringUtils.isNotBlank(field.getFieldConversions())) {

                 String fieldConversions = field.getFieldConversions();

                 String newFieldConversions = KRADConstants.EMPTY_STRING;

                 String[] conversions = StringUtils.split(fieldConversions, KRADConstants.FIELD_CONVERSIONS_SEPARATOR);

                 for (int l = 0; l < conversions.length; l++) {

                     String conversion = conversions[l];

                     //String[] conversionPair = StringUtils.split(conversion, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR);

                     String[] conversionPair = StringUtils.split(conversion, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR, 2);

                     String conversionFrom = conversionPair[0];

                     String conversionTo = conversionPair[1];

                     conversionTo = KRADConstants.MAINTENANCE_NEW_MAINTAINABLE + conversionTo;

                     newFieldConversions += (conversionFrom + KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR + conversionTo);

                     if (l < conversions.length) {

                         newFieldConversions += KRADConstants.FIELD_CONVERSIONS_SEPARATOR;

                     }

                 }

                 field.setFieldConversions(newFieldConversions);

             }

             // if inquiryParameters specified, prefix with new constant

             if (StringUtils.isNotBlank(field.getInquiryParameters())) {

                 String inquiryParameters = field.getInquiryParameters();

                 StringBuilder newInquiryParameters = new StringBuilder();

                 String[] parameters = StringUtils.split(inquiryParameters, KRADConstants.FIELD_CONVERSIONS_SEPARATOR);

                 for (int l = 0; l < parameters.length; l++) {

                     String parameter = parameters[l];

                     //String[] parameterPair = StringUtils.split(parameter, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR);

                     String[] parameterPair = StringUtils.split(parameter, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR, 2);

                     String conversionFrom = parameterPair[0];

                     String conversionTo = parameterPair[1];

                     // append the conversionFrom string, prefixed by document.newMaintainable

                     newInquiryParameters.append(KRADConstants.MAINTENANCE_NEW_MAINTAINABLE).append(conversionFrom);

                     newInquiryParameters.append(KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR).append(conversionTo);

                     if (l < parameters.length - 1) {

                         newInquiryParameters.append(KRADConstants.FIELD_CONVERSIONS_SEPARATOR);

                     }

                 }

                 field.setInquiryParameters(newInquiryParameters.toString());

             }

             if (Field.KUALIUSER.equals(field.getFieldType())) {

                 // prefix the personNameAttributeName

                     int suffixIndex = field.getPropertyName().indexOf( field.getUserIdAttributeName() );

                     if ( suffixIndex != -1 ) {

                             field.setPersonNameAttributeName( field.getPropertyName().substring( 0, suffixIndex ) + field.getPersonNameAttributeName() );

                             field.setUniversalIdAttributeName( field.getPropertyName().substring( 0, suffixIndex ) + field.getUniversalIdAttributeName() );

                     } else {

                             field.setPersonNameAttributeName(namePrefix + field.getPersonNameAttributeName());

                             field.setUniversalIdAttributeName(namePrefix + field.getUniversalIdAttributeName());

                     }

                 // TODO: do we need to prefix the universalIdAttributeName in Field as well?

             }

             // if lookupParameters specified, prefix with new constant

             if (StringUtils.isNotBlank(field.getLookupParameters())) {

                 String lookupParameters = field.getLookupParameters();

                 String newLookupParameters = KRADConstants.EMPTY_STRING;

                 String[] conversions = StringUtils.split(lookupParameters, KRADConstants.FIELD_CONVERSIONS_SEPARATOR);

                 for (int m = 0; m < conversions.length; m++) {

                     String conversion = conversions[m];

                     //String[] conversionPair = StringUtils.split(conversion, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR);

                     String[] conversionPair = StringUtils.split(conversion, KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR, 2);

                     String conversionFrom = conversionPair[0];

                     String conversionTo = conversionPair[1];

                     conversionFrom = KRADConstants.MAINTENANCE_NEW_MAINTAINABLE + conversionFrom;

                     newLookupParameters += (conversionFrom + KRADConstants.FIELD_CONVERSION_PAIR_SEPARATOR + conversionTo);

                     if (m < conversions.length) {

                         newLookupParameters += KRADConstants.FIELD_CONVERSIONS_SEPARATOR;

                     }

                 }

                 field.setLookupParameters(newLookupParameters);

             }

             // CONTAINER field types have nested rows and fields that need setup for the form

             if (Field.CONTAINER.equals(field.getFieldType())) {

                 List containerRows = field.getContainerRows();

                 List fixedRows = new ArrayList();

                 for (Iterator iter = containerRows.iterator(); iter.hasNext();) {

                     Row containerRow = (Row) iter.next();

                     List containerFields = containerRow.getFields();

                     List fixedFields = new ArrayList();

                     for (Iterator iterator = containerFields.iterator(); iterator.hasNext();) {

                         Field containerField = (Field) iterator.next();

                         containerField = fixFieldForForm(containerField, keyFieldNames, namePrefix, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

                         fixedFields.add(containerField);

                     }

                     fixedRows.add(new Row(fixedFields));

                 }

                 field.setContainerRows(fixedRows);

             }

         }

         return field;

     }

     public static void applyAuthorization(Field field, String maintenanceAction, MaintenanceDocumentRestrictions auths, String documentStatus, String documentInitiatorPrincipalId) {

             String fieldName = "";

             FieldRestriction fieldAuth = null;

             Person user = GlobalVariables.getUserSession().getPerson();

         // only apply this on the newMaintainable

         if (field.getPropertyName().startsWith(KRADConstants.MAINTENANCE_NEW_MAINTAINABLE)) {

             // get just the actual fieldName, with the document.newMaintainableObject, etc etc removed

             fieldName = field.getPropertyName().substring(KRADConstants.MAINTENANCE_NEW_MAINTAINABLE.length());

             // if the field is restricted somehow

             if (auths.hasRestriction(fieldName)) {

                 fieldAuth = auths.getFieldRestriction(fieldName);

                 if(KRADConstants.MAINTENANCE_NEW_ACTION.equals(maintenanceAction) || KRADConstants.MAINTENANCE_COPY_ACTION.equals(maintenanceAction)){

                         if((KEWConstants.ROUTE_HEADER_SAVED_CD.equals(documentStatus) || KEWConstants.ROUTE_HEADER_INITIATED_CD.equals(documentStatus))

                                 && user.getPrincipalId().equals(documentInitiatorPrincipalId)){

                                 //user should be able to see the unmark value

                         }else{

                                 if(fieldAuth.isPartiallyMasked()){

                                     field.setSecure(true);

                                     fieldAuth.setShouldBeEncrypted(true);

                                     MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                                     String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                                     field.setDisplayMaskValue(displayMaskValue);

                                     populateSecureField(field, field.getPropertyValue());

                             }

                             else if(fieldAuth.isMasked()){

                                     field.setSecure(true);

                                     fieldAuth.setShouldBeEncrypted(true);

                                     MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                                     String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                                     field.setDisplayMaskValue(displayMaskValue);

                                     populateSecureField(field, field.getPropertyValue());

                             }

                         }

                 }

                 if (KRADConstants.MAINTENANCE_EDIT_ACTION.equals(maintenanceAction) || KRADConstants.MAINTENANCE_NEWWITHEXISTING_ACTION.equals(maintenanceAction)) {

                         // if there's existing data on the page that we're not going to clear out, then we will mask it out

                         if(fieldAuth.isPartiallyMasked()){

                                 field.setSecure(true);

                                 fieldAuth.setShouldBeEncrypted(true);

                                 MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                                 String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                                 field.setDisplayMaskValue(displayMaskValue);

                                 populateSecureField(field, field.getPropertyValue());

                         }

                         else if(fieldAuth.isMasked()){

                                 field.setSecure(true);

                                 fieldAuth.setShouldBeEncrypted(true);

                                 MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                                 String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                                 field.setDisplayMaskValue(displayMaskValue);

                                 populateSecureField(field, field.getPropertyValue());

                         }

                 }

                 if (Field.isInputField(field.getFieldType()) || field.getFieldType().equalsIgnoreCase(Field.CHECKBOX)) {

                         // if its an editable field, allow decreasing availability to readonly or hidden

                     // only touch the field if the restricted type is hidden or readonly

                     if (fieldAuth.isReadOnly()) {

                         if (!field.isReadOnly() && !fieldAuth.isMasked() && !fieldAuth.isPartiallyMasked()) {

                             field.setReadOnly(true);

                         }

                     }

                     else if (fieldAuth.isHidden()) {

                         if (field.getFieldType() != Field.HIDDEN) {

                             field.setFieldType(Field.HIDDEN);

                         }

                     }

                 }

                 if(Field.BUTTON.equalsIgnoreCase(field.getFieldType()) && fieldAuth.isHidden()){

                         field.setFieldType(Field.HIDDEN);

                 }

                 // if the field is readOnly, and the authorization says it should be hidden,

                 // then restrict it

                 if (field.isReadOnly() && fieldAuth.isHidden()) {

                     field.setFieldType(Field.HIDDEN);

                 }

             }

             // special check for old maintainable - need to ensure that fields hidden on the

             // "new" side are also hidden on the old side

         }

         else if (field.getPropertyName().startsWith(KRADConstants.MAINTENANCE_OLD_MAINTAINABLE)) {

             // get just the actual fieldName, with the document.oldMaintainableObject, etc etc removed

             fieldName = field.getPropertyName().substring(KRADConstants.MAINTENANCE_OLD_MAINTAINABLE.length());

             // if the field is restricted somehow

             if (auths.hasRestriction(fieldName)) {

                 fieldAuth = auths.getFieldRestriction(fieldName);

                 if(fieldAuth.isPartiallyMasked()){

                     field.setSecure(true);

                     MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                     String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                     field.setDisplayMaskValue(displayMaskValue);

                     field.setPropertyValue(displayMaskValue);

                     populateSecureField(field, field.getPropertyValue());

                }

                if(fieldAuth.isMasked()){

                     field.setSecure(true);

                     MaskFormatter maskFormatter = fieldAuth.getMaskFormatter();

                     String displayMaskValue = maskFormatter.maskValue(field.getPropertyValue());

                     field.setDisplayMaskValue(displayMaskValue);

                     field.setPropertyValue(displayMaskValue);

                     populateSecureField(field, field.getPropertyValue());

                 }

                 if (fieldAuth.isHidden()) {

                     field.setFieldType(Field.HIDDEN);

                 }

             }

         }

     }

     /**

      * Merges together sections of the old maintainable and new maintainable.

      *

      * @param oldSections

      * @param newSections

      * @param keyFieldNames

      * @param maintenanceAction

      * @param readOnly

      * @return List of Section objects

      */

     public static List meshSections(List oldSections, List newSections, List keyFieldNames, String maintenanceAction, boolean readOnly, MaintenanceDocumentRestrictions auths, String documentStatus, String documentInitiatorPrincipalId) {

         List meshedSections = new ArrayList();

         for (int i = 0; i < newSections.size(); i++) {

             Section maintSection = (Section) newSections.get(i);

             List sectionRows = maintSection.getRows();

             Section oldMaintSection = (Section) oldSections.get(i);

             List oldSectionRows = oldMaintSection.getRows();

             List<Row> meshedRows = new ArrayList();

             meshedRows = meshRows(oldSectionRows, sectionRows, keyFieldNames, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

             maintSection.setRows(meshedRows);

             if (StringUtils.isBlank(maintSection.getErrorKey())) {

                 maintSection.setErrorKey(MaintenanceUtils.generateErrorKeyForSection(maintSection));

             }

             meshedSections.add(maintSection);

         }

         return meshedSections;

     }

     /**

      * Merges together rows of an old maintainable section and new maintainable section.

      *

      * @param oldRows

      * @param newRows

      * @param keyFieldNames

      * @param maintenanceAction

      * @param readOnly

      * @return List of Row objects

      */

     public static List meshRows(List oldRows, List newRows, List keyFieldNames, String maintenanceAction, boolean readOnly, MaintenanceDocumentRestrictions auths, String documentStatus, String documentInitiatorPrincipalId) {

         List<Row> meshedRows = new ArrayList<Row>();

         for (int j = 0; j < newRows.size(); j++) {

             Row sectionRow = (Row) newRows.get(j);

             List rowFields = sectionRow.getFields();

             Row oldSectionRow = null;

             List oldRowFields = new ArrayList();

             if (null != oldRows && oldRows.size() > j) {

                 oldSectionRow = (Row) oldRows.get(j);

                 oldRowFields = oldSectionRow.getFields();

             }

             List meshedFields = meshFields(oldRowFields, rowFields, keyFieldNames, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

             if (meshedFields.size() > 0) {

                 Row meshedRow = new Row(meshedFields);

                 if (sectionRow.isHidden()) {

                     meshedRow.setHidden(true);

                 }

                 meshedRows.add(meshedRow);

             }

         }

         return meshedRows;

     }

     /**

      * Merges together fields and an old maintainble row and new maintainable row, for each field call fixFieldForForm.

      *

      * @param oldFields

      * @param newFields

      * @param keyFieldNames

      * @param maintenanceAction

      * @param readOnly

      * @return List of Field objects

      */

     public static List meshFields(List oldFields, List newFields, List keyFieldNames, String maintenanceAction, boolean readOnly, MaintenanceDocumentRestrictions auths, String documentStatus, String documentInitiatorPrincipalId) {

         List meshedFields = new ArrayList();

         List newFieldsToMerge = new ArrayList();

         List oldFieldsToMerge = new ArrayList();

         for (int k = 0; k < newFields.size(); k++) {

             Field newMaintField = (Field) newFields.get(k);

             String propertyName = newMaintField.getPropertyName();

             // If this is an add button, then we have to have only this field for the entire row.

             if (Field.IMAGE_SUBMIT.equals(newMaintField.getFieldType())) {

                 meshedFields.add(newMaintField);

             }

             else if (Field.CONTAINER.equals(newMaintField.getFieldType())) {

                 if (oldFields.size() > k) {

                     Field oldMaintField = (Field) oldFields.get(k);

                     newMaintField = meshContainerFields(oldMaintField, newMaintField, keyFieldNames, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

                 }

                 else {

                     newMaintField = meshContainerFields(newMaintField, newMaintField, keyFieldNames, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

                 }

                 meshedFields.add(newMaintField);

             }

             else {

                 newMaintField = FieldUtils.fixFieldForForm(newMaintField, keyFieldNames, KRADConstants.MAINTENANCE_NEW_MAINTAINABLE, maintenanceAction, readOnly, auths, documentStatus, documentInitiatorPrincipalId);

                 // add old fields for edit

                 if (KRADConstants.MAINTENANCE_EDIT_ACTION.equals(maintenanceAction) || KRADConstants.MAINTENANCE_COPY_ACTION.equals(maintenanceAction)) {

                     Field oldMaintField = (Field) oldFields.get(k);

                     // compare values for change, and set new maintainable fields for highlighting

                     // no point in highlighting the hidden fields, since they won't be rendered anyways

                     if (!StringUtils.equalsIgnoreCase(newMaintField.getPropertyValue(), oldMaintField.getPropertyValue())

                             && !Field.HIDDEN.equals(newMaintField.getFieldType())) {

                         newMaintField.setHighlightField(true);

                     }

                     oldMaintField = FieldUtils.fixFieldForForm(oldMaintField, keyFieldNames, KRADConstants.MAINTENANCE_OLD_MAINTAINABLE, maintenanceAction, true, auths, documentStatus, documentInitiatorPrincipalId);

                     oldFieldsToMerge.add(oldMaintField);

                 }

                 newFieldsToMerge.add(newMaintField);

                 for (Iterator iter = oldFieldsToMerge.iterator(); iter.hasNext();) {

                     Field element = (Field) iter.next();

                     meshedFields.add(element);

                 }

                 for (Iterator iter = newFieldsToMerge.iterator(); iter.hasNext();) {

                     Field element = (Field) iter.next();

                     meshedFields.add(element);

                 }

             }

         }

         return meshedFields;

     }

     /**

      * Determines whether field level help is enabled for the field corresponding to the dataObjectClass and attribute name

      *

      * If this value is true, then the field level help will be enabled.

      * If false, then whether a field is enabled is determined by the value returned by {@link #isLookupFieldLevelHelpDisabled(Class, String)} and the system-wide

      * parameter setting.  Note that if a field is read-only, that may cause field-level help to not be rendered.

      *

      * @param businessObjectClass the looked up class

      * @param attributeName the attribute for the field

      * @return true if field level help is enabled, false if the value of this method should NOT be used to determine whether this method's return value

      * affects the enablement of field level help

      */

     protected static boolean isLookupFieldLevelHelpEnabled(Class businessObjectClass, String attributeName) {

         return false;

     }

     /**

      * Determines whether field level help is disabled for the field corresponding to the dataObjectClass and attribute name

      *

      * If this value is true and {@link #isLookupFieldLevelHelpEnabled(Class, String)} returns false,

      * then the field level help will not be rendered.  If both this and {@link #isLookupFieldLevelHelpEnabled(Class, String)} return false, then the system-wide

      * setting will determine whether field level help is enabled.  Note that if a field is read-only, that may cause field-level help to not be rendered.

      *

      * @param businessObjectClass the looked up class

      * @param attributeName the attribute for the field

      * @return true if field level help is disabled, false if the value of this method should NOT be used to determine whether this method's return value

      * affects the enablement of field level help

      */

     protected static boolean isLookupFieldLevelHelpDisabled(Class businessObjectClass, String attributeName) {

         return false;

     }

     public static List createAndPopulateFieldsForLookup(List<String> lookupFieldAttributeList, List<String> readOnlyFieldsList, Class businessObjectClass) throws InstantiationException, IllegalAccessException {

         List<Field> fields = new ArrayList<Field>();

         BusinessObjectEntry boe = (BusinessObjectEntry) getDataDictionaryService().getDataDictionary().getBusinessObjectEntry(businessObjectClass.getName());

         Map<String, Boolean> isHiddenMap = new HashMap<String, Boolean>();

         Map<String, Boolean> isReadOnlyMap = new HashMap<String, Boolean>();

         /*

              * Check if any field is hidden or read only.  This allows us to

              * set lookup criteria as hidden/readonly outside the controlDefinition.

              */

             if(boe.hasLookupDefinition()){

                     List<FieldDefinition> fieldDefs = boe.getLookupDefinition().getLookupFields();

                     for(FieldDefinition field : fieldDefs){

                                 isReadOnlyMap.put(field.getAttributeName(), Boolean.valueOf(field.isReadOnly()));

                                 isHiddenMap.put(field.getAttributeName(), Boolean.valueOf(field.isHidden()));

                     }

             }

         for( String attributeName : lookupFieldAttributeList )

         {

             Field field = FieldUtils.getPropertyField(businessObjectClass, attributeName, true);

             if(field.isDatePicker() && field.isRanged()) {

                     Field newDate = createRangeDateField(field);

                     fields.add(newDate);

             }

             BusinessObject newBusinessObjectInstance;

             if (ExternalizableBusinessObjectUtils.isExternalizableBusinessObjectInterface(businessObjectClass)) {

                     ModuleService moduleService = getKualiModuleService().getResponsibleModuleService(businessObjectClass);

                     newBusinessObjectInstance = (BusinessObject) moduleService.createNewObjectFromExternalizableClass(businessObjectClass);

             }

             else {

                     newBusinessObjectInstance = (BusinessObject) businessObjectClass.newInstance();

             }

             //quickFinder is synonymous with a field-based Lookup

             field = LookupUtils.setFieldQuickfinder(newBusinessObjectInstance, attributeName, field, lookupFieldAttributeList);

             field = LookupUtils.setFieldDirectInquiry(newBusinessObjectInstance, attributeName, field);