/*

  * Copyright 2007-2009 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.kew.rule.bo;

 import java.sql.Date;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.reflect.ObjectDefinition;

 import org.kuali.rice.core.api.resourceloader.GlobalResourceLoader;

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

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

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

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

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

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

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

 import org.kuali.rice.kew.exception.WorkflowServiceErrorImpl;

 import org.kuali.rice.kew.lookupable.MyColumns;

 import org.kuali.rice.kew.rule.OddSearchAttribute;

 import org.kuali.rice.kew.rule.RuleBaseValues;

 import org.kuali.rice.kew.rule.RuleDelegation;

 import org.kuali.rice.kew.rule.WorkflowAttribute;

 import org.kuali.rice.kew.rule.service.RuleDelegationService;

 import org.kuali.rice.kew.rule.service.RuleTemplateService;

 import org.kuali.rice.kew.rule.xmlrouting.GenericXMLRuleAttribute;

 import org.kuali.rice.kew.service.KEWServiceLocator;

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

 import org.kuali.rice.kim.api.services.IdentityManagementService;

 import org.kuali.rice.kim.api.services.KimApiServiceLocator;

 import org.kuali.rice.kim.api.group.Group;

 import org.kuali.rice.kim.bo.Person;

 import org.kuali.rice.kim.util.KimConstants;

 import org.kuali.rice.kns.authorization.BusinessObjectRestrictions;

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

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

 import org.kuali.rice.kns.exception.ValidationException;

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

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

 import org.kuali.rice.kns.util.GlobalVariables;

 import org.kuali.rice.kns.util.KNSConstants;

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

 import org.kuali.rice.kns.web.comparator.CellComparatorHelper;

 import org.kuali.rice.kns.web.struts.form.LookupForm;

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

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

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

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

 /**

  * This is a description of what this class does - jjhanso don't forget to fill this in.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class RuleDelegationLookupableHelperServiceImpl extends KualiLookupableHelperServiceImpl {

     private List<Row> rows = new ArrayList<Row>();

     //private List<Column> columns = establishColumns();

     //private Long previousRuleTemplateId;

     private static final String PARENT_RESPONSIBILITY_ID_PROPERTY_NAME = "responsibilityId";

     private static final String PARENT_RULE_ID_PROPERTY_NAME = "ruleResponsibility.ruleBaseValues.ruleBaseValuesId";

     private static final String RULE_TEMPLATE_PROPERTY_NAME = "delegationRuleBaseValues.ruleTemplate.name";

     private static final String RULE_ID_PROPERTY_NAME = "delegationRuleBaseValues.ruleBaseValuesId";

     private static final String ACTIVE_IND_PROPERTY_NAME = "delegationRuleBaseValues.activeInd";

     private static final String DELEGATION_PROPERTY_NAME = "delegationType";

     private static final String GROUP_REVIEWER_PROPERTY_NAME = "delegationRuleBaseValues.groupReviewer";

     private static final String GROUP_REVIEWER_NAME_PROPERTY_NAME = "delegationRuleBaseValues.groupReviewerName";

     private static final String GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME = "delegationRuleBaseValues.groupReviewerNamespace";

     private static final String PERSON_REVIEWER_PROPERTY_NAME = "delegationRuleBaseValues.personReviewer";

     private static final String PERSON_REVIEWER_TYPE_PROPERTY_NAME = "delegationRuleBaseValues.personReviewerType";

     private static final String DOC_TYP_NAME_PROPERTY_NAME = "delegationRuleBaseValues.documentType.name";

     private static final String RULE_DESC_PROPERTY_NAME = "delegationRuleBaseValues.description";

     private static final String BACK_LOCATION = "backLocation";

     private static final String DOC_FORM_KEY = "docFormKey";

     private static final String INVALID_WORKGROUP_ERROR = "The Group Reviewer Namespace and Name combination is not valid";

     private static final String INVALID_PERSON_ERROR = "The Person Reviewer is not valid";

     @Override

         public List<Row> getRows() {

         List<Row> superRows = super.getRows();

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

         returnRows.addAll(superRows);

         returnRows.addAll(rows);

         return returnRows;

     }

     @Override

     public boolean checkForAdditionalFields(Map fieldValues) {

         String ruleTemplateNameParam = (String) fieldValues.get(RULE_TEMPLATE_PROPERTY_NAME);

         if (ruleTemplateNameParam != null && !ruleTemplateNameParam.equals("")) {

             rows = new ArrayList<Row>();

             RuleTemplate ruleTemplate = null;

             ruleTemplate = getRuleTemplateService().findByRuleTemplateName(ruleTemplateNameParam);

             for (Object element : ruleTemplate.getActiveRuleTemplateAttributes()) {

                 RuleTemplateAttribute ruleTemplateAttribute = (RuleTemplateAttribute) element;

                 if (!ruleTemplateAttribute.isWorkflowAttribute()) {

                     continue;

                 }

                 WorkflowAttribute attribute = ruleTemplateAttribute.getWorkflowAttribute();

                 RuleAttribute ruleAttribute = ruleTemplateAttribute.getRuleAttribute();

                 if (ruleAttribute.getType().equals(KEWConstants.RULE_XML_ATTRIBUTE_TYPE)) {

                     ((GenericXMLRuleAttribute) attribute).setRuleAttribute(ruleAttribute);

                 }

                 // run through the attributes fields once to populate field values we have to do this

                 // to allow rows dependent on another row value to populate correctly in the loop below

                 List<Row> searchRows = null;

                 if (attribute instanceof OddSearchAttribute) {

                     searchRows = ((OddSearchAttribute) attribute).getSearchRows();

                 } else {

                     searchRows = attribute.getRuleRows();

                 }

                 for (Row row : searchRows) {

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

                     for (Field field2 : row.getFields()) {

                         Field field = field2;

                         if (fieldValues.get(field.getPropertyName()) != null) {

                             field.setPropertyValue(fieldValues.get(field.getPropertyName()));

                         }

                         fields.add(field);

                         fieldValues.put(field.getPropertyName(), field.getPropertyValue());

                     }

                 }

                 if (attribute instanceof OddSearchAttribute) {

                     ((OddSearchAttribute) attribute).validateSearchData(fieldValues);

                 } else {

                     attribute.validateRuleData(fieldValues);// populate attribute

                 }

                 if (attribute instanceof OddSearchAttribute) {

                     searchRows = ((OddSearchAttribute) attribute).getSearchRows();

                 } else {

                     searchRows = attribute.getRuleRows();

                 }

                 for (Object element2 : searchRows) {

                     Row row = (Row) element2;

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

                     for (Field field : row.getFields()) {

                         if (fieldValues.get(field.getPropertyName()) != null) {

                             field.setPropertyValue(fieldValues.get(field.getPropertyName()));

                         }

                         fields.add(field);

                         fieldValues.put(field.getPropertyName(), field.getPropertyValue());

                     }

                     row.setFields(fields);

                     rows.add(row);

                 }

             }

             return true;

         }

         rows.clear();

         return false;

     }

     @Override

     public List<? extends BusinessObject> getSearchResults(Map<String, String> fieldValues) {

         List errors = new ArrayList();

         String parentRuleBaseValueId = fieldValues.get(PARENT_RULE_ID_PROPERTY_NAME);

         String parentResponsibilityId = fieldValues.get(PARENT_RESPONSIBILITY_ID_PROPERTY_NAME);

         String docTypeNameParam = fieldValues.get(DOC_TYP_NAME_PROPERTY_NAME);

         String ruleTemplateIdParam = null;//(String) fieldValues.get(RULE_TEMPLATE_ID_PROPERTY_NAME);

         String ruleTemplateNameParam = fieldValues.get(RULE_TEMPLATE_PROPERTY_NAME);

         String groupIdParam = fieldValues.get(GROUP_REVIEWER_PROPERTY_NAME);

         String groupNameParam = fieldValues.get(GROUP_REVIEWER_NAME_PROPERTY_NAME);

         String groupNamespaceParam = fieldValues.get(GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME);

         String networkIdParam = fieldValues.get(PERSON_REVIEWER_PROPERTY_NAME);

         String userDirectiveParam = fieldValues.get(PERSON_REVIEWER_TYPE_PROPERTY_NAME);

         String activeParam = fieldValues.get(ACTIVE_IND_PROPERTY_NAME);

         String delegationParam = fieldValues.get(DELEGATION_PROPERTY_NAME);

         String ruleIdParam = fieldValues.get(RULE_ID_PROPERTY_NAME);

         fieldValues.get(KEWConstants.DELEGATION_WIZARD);

         String ruleDescription = fieldValues.get(RULE_DESC_PROPERTY_NAME);

         String docTypeSearchName = null;

         String workflowId = null;

         String workgroupId = null;

         Long ruleTemplateId = null;

         Boolean isActive = null;

         Long ruleId = null;

         if (ruleIdParam != null && !"".equals(ruleIdParam.trim())) {

             try {

                 ruleId = new Long(ruleIdParam.trim());

             } catch (NumberFormatException e) {

                 ruleId = new Long(-1);

             }

         }

         if (!activeParam.equals("")) {

             if (activeParam.equals("Y")) {

                 isActive = Boolean.TRUE;

             } else {

                 isActive = Boolean.FALSE;

             }

         }

         if (docTypeNameParam != null && !"".equals(docTypeNameParam.trim())) {

             docTypeSearchName = docTypeNameParam.replace('*', '%');

             docTypeSearchName = "%" + docTypeSearchName.trim() + "%";

         }

         if (!org.apache.commons.lang.StringUtils.isEmpty(groupIdParam) || !org.apache.commons.lang.StringUtils.isEmpty(groupNameParam)) {

             Group group = null;

             if (groupIdParam != null && !"".equals(groupIdParam)) {

                 group = getIdentityManagementService().getGroup(groupIdParam.trim());

             } else {

                 if (groupNamespaceParam == null) {

                     groupNamespaceParam = KimConstants.KIM_GROUP_DEFAULT_NAMESPACE_CODE;

                 }

                 group = getIdentityManagementService().getGroupByName(groupNamespaceParam, groupNameParam.trim());

                 if (group == null) {

                     GlobalVariables.getMessageMap().putError(GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME, RiceKeyConstants.ERROR_CUSTOM, INVALID_WORKGROUP_ERROR);

                 } else {

                     workgroupId = group.getId();

                 }

             }

         }

         Map attributes = null;

         MyColumns myColumns = new MyColumns();

         if (ruleTemplateNameParam != null && !ruleTemplateNameParam.trim().equals("") || ruleTemplateIdParam != null && !"".equals(ruleTemplateIdParam) && !"null".equals(ruleTemplateIdParam)) {

             RuleTemplate ruleTemplate = null;

             if (ruleTemplateIdParam != null && !"".equals(ruleTemplateIdParam)) {

                 ruleTemplateId = new Long(ruleTemplateIdParam);

                 ruleTemplate = getRuleTemplateService().findByRuleTemplateId(ruleTemplateId);

             } else {

                 ruleTemplate = getRuleTemplateService().findByRuleTemplateName(ruleTemplateNameParam.trim());

                 ruleTemplateId = new Long(ruleTemplate.getRuleTemplateId().longValue());

             }

             if(ruleTemplate == null){

                 rows.clear();

                 LOG.info("Returning empty result set for Delegation Rule Lookup because a RuleTemplate Name or ID was provided, but no valid RuleTemplates were retrieved by the service.");

                 return new ArrayList<RuleDelegation>();

             }

             attributes = new HashMap();

             for (Object element : ruleTemplate.getActiveRuleTemplateAttributes()) {

                 RuleTemplateAttribute ruleTemplateAttribute = (RuleTemplateAttribute) element;

                 if (!ruleTemplateAttribute.isWorkflowAttribute()) {

                     continue;

                 }

                 WorkflowAttribute attribute = (WorkflowAttribute)GlobalResourceLoader.getObject(new ObjectDefinition(ruleTemplateAttribute.getRuleAttribute().getClassName(), ruleTemplateAttribute.getRuleAttribute().getApplicationId()));//SpringServiceLocator.getExtensionService().getWorkflowAttribute(ruleTemplateAttribute.getRuleAttribute().getClassName());

                 RuleAttribute ruleAttribute = ruleTemplateAttribute.getRuleAttribute();

                 if (ruleAttribute.getType().equals(KEWConstants.RULE_XML_ATTRIBUTE_TYPE)) {

                     ((GenericXMLRuleAttribute) attribute).setRuleAttribute(ruleAttribute);

                 }

                 attribute.setRequired(false);

                 List<Row> searchRows = null;

                 if (attribute instanceof OddSearchAttribute) {

                     for (WorkflowServiceErrorImpl wsei : (List<WorkflowServiceErrorImpl>)((OddSearchAttribute)attribute).validateSearchData(fieldValues)) {

                         GlobalVariables.getMessageMap().putError(wsei.getMessage(), RiceKeyConstants.ERROR_CUSTOM, wsei.getArg1());

                     }

                     searchRows = ((OddSearchAttribute) attribute).getSearchRows();

                 } else {

                     for (WorkflowServiceErrorImpl wsei : (List<WorkflowServiceErrorImpl>)attribute.validateRuleData(fieldValues)) {

                         GlobalVariables.getMessageMap().putError(wsei.getMessage(), RiceKeyConstants.ERROR_CUSTOM, wsei.getArg1());

                     }

                     searchRows = attribute.getRuleRows();

                 }

                 for (Row row : searchRows) {

                     for (Field field : row.getFields()) {

                         if (fieldValues.get(field.getPropertyName()) != null) {

                             String attributeParam = fieldValues.get(field.getPropertyName());

                             if (!attributeParam.equals("")) {

                                 if (ruleAttribute.getType().equals(KEWConstants.RULE_XML_ATTRIBUTE_TYPE)) {

                                     attributes.put(field.getPropertyName(), attributeParam.trim());

                                 } else {

                                     attributes.put(field.getPropertyName(), attributeParam.trim());

                                 }

                             }

                         }

                         if (field.getFieldType().equals(Field.TEXT) || field.getFieldType().equals(Field.DROPDOWN) || field.getFieldType().equals(Field.DROPDOWN_REFRESH) || field.getFieldType().equals(Field.RADIO)) {

                             if (ruleAttribute.getType().equals(KEWConstants.RULE_XML_ATTRIBUTE_TYPE)) {

                                 myColumns.getColumns().add(new ConcreteKeyValue(field.getPropertyName(), ruleTemplateAttribute.getRuleTemplateAttributeId()+""));

                             } else {

                                 myColumns.getColumns().add(new ConcreteKeyValue(field.getPropertyName(), ruleTemplateAttribute.getRuleTemplateAttributeId()+""));

                             }

                         }

                     }

                 }

             }

         }

         if (!org.apache.commons.lang.StringUtils.isEmpty(ruleDescription)) {

             ruleDescription = ruleDescription.replace('*', '%');

             ruleDescription = "%" + ruleDescription.trim() + "%";

         }

         if (!errors.isEmpty()) {

             throw new ValidationException("errors in search criteria");

         }

         if(!org.apache.commons.lang.StringUtils.isEmpty(networkIdParam)){

         workflowId = networkIdParam;

         workflowId = KimApiServiceLocator.getIdentityService().getPrincipalByPrincipalName(networkIdParam).getPrincipalId();

         }

         Iterator<RuleDelegation> rules = getRuleDelegationService().search(parentRuleBaseValueId, parentResponsibilityId, docTypeSearchName, ruleId, ruleTemplateId, ruleDescription, workgroupId, workflowId, delegationParam, isActive, attributes, userDirectiveParam).iterator();

         List<RuleDelegation> displayList = new ArrayList<RuleDelegation>();

         while (rules.hasNext()) {

             RuleDelegation ruleDelegation = rules.next();

             RuleBaseValues record = ruleDelegation.getDelegationRuleBaseValues();

             if (org.apache.commons.lang.StringUtils.isEmpty(record.getDescription())) {

                 record.setDescription(KEWConstants.HTML_NON_BREAKING_SPACE);

             }

             if (ruleTemplateNameParam != null && !ruleTemplateNameParam.trim().equals("") || ruleTemplateIdParam != null && !"".equals(ruleTemplateIdParam) && !"null".equals(ruleTemplateIdParam)) {

                 MyColumns myNewColumns = new MyColumns();

                 for (Object element : myColumns.getColumns()) {

                     KeyValue pair = (KeyValue) element;

                     final KeyValue newPair;

                     if (record.getRuleExtensionValue(new Long(pair.getKey()), pair.getKey().toString()) != null) {

                             newPair = new ConcreteKeyValue(pair.getKey(), record.getRuleExtensionValue(new Long(pair.getValue()), pair.getKey().toString()).getValue());

                     } else {

                             newPair = new ConcreteKeyValue(pair.getKey(), KEWConstants.HTML_NON_BREAKING_SPACE);

                     }

                     myNewColumns.getColumns().add(newPair);

                     record.getFieldValues().put(newPair.getKey(), newPair.getValue());

                 }

                 record.setMyColumns(myNewColumns);

             }

             StringBuffer returnUrl = new StringBuffer("<a href=\"");

             returnUrl.append(fieldValues.get(BACK_LOCATION)).append("?methodToCall=refresh&docFormKey=").append(fieldValues.get(DOC_FORM_KEY)).append("&");

             returnUrl.append(RULE_ID_PROPERTY_NAME);

             returnUrl.append("=").append(record.getRuleBaseValuesId()).append("\">return value</a>");

             record.setReturnUrl(returnUrl.toString());

             String destinationUrl = "<a href=\"Rule.do?methodToCall=report&currentRuleId=" + record.getRuleBaseValuesId() + "\">report</a>";

             record.setDestinationUrl(destinationUrl);

             displayList.add(ruleDelegation);

         }

         return displayList;

     }

     private IdentityManagementService getIdentityManagementService() {

        return KimApiServiceLocator.getIdentityManagementService();

     }

     private RuleTemplateService getRuleTemplateService() {

         return (RuleTemplateService) KEWServiceLocator.getService(KEWServiceLocator.RULE_TEMPLATE_SERVICE);

     }

     private RuleDelegationService getRuleDelegationService() {

         return (RuleDelegationService) KEWServiceLocator.getService(KEWServiceLocator.RULE_DELEGATION_SERVICE);

     }

     @Override

     public void validateSearchParameters(Map fieldValues) {

         super.validateSearchParameters(fieldValues);

         // make sure that if we have either groupName or Namespace, that both are filled in

         String groupName = (String)fieldValues.get(GROUP_REVIEWER_NAME_PROPERTY_NAME);

         String groupNamespace = (String)fieldValues.get(GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME);

         String personId = (String)fieldValues.get(PERSON_REVIEWER_PROPERTY_NAME);

         if (org.apache.commons.lang.StringUtils.isEmpty(groupName) && !org.apache.commons.lang.StringUtils.isEmpty(groupNamespace)) {

             String attributeLabel = getDataDictionaryService().getAttributeLabel(getBusinessObjectClass(), GROUP_REVIEWER_NAME_PROPERTY_NAME);

             GlobalVariables.getMessageMap().putError(GROUP_REVIEWER_NAME_PROPERTY_NAME, RiceKeyConstants.ERROR_REQUIRED, attributeLabel);

         }

         if  (!org.apache.commons.lang.StringUtils.isEmpty(groupName) && org.apache.commons.lang.StringUtils.isEmpty(groupNamespace)) {

             String attributeLabel = getDataDictionaryService().getAttributeLabel(getBusinessObjectClass(), GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME);

             GlobalVariables.getMessageMap().putError(GROUP_REVIEWER_NAMESPACE_PROPERTY_NAME, RiceKeyConstants.ERROR_REQUIRED, attributeLabel);

         }

         if  (!org.apache.commons.lang.StringUtils.isEmpty(groupName) && !org.apache.commons.lang.StringUtils.isEmpty(groupNamespace)) {

             Group group = getIdentityManagementService().getGroupByName(groupNamespace, groupName);

             if (group == null) {

                 GlobalVariables.getMessageMap().putError(GROUP_REVIEWER_NAME_PROPERTY_NAME, RiceKeyConstants.ERROR_CUSTOM, INVALID_WORKGROUP_ERROR);

             }

         }

         if  (!org.apache.commons.lang.StringUtils.isEmpty(personId)) {

             //Person person = KIMServiceLocatorInternal.getPersonService().getPerson(personId);

             Person person = KimApiServiceLocator.getPersonService().getPersonByPrincipalName(personId);/** IU fix EN-1552 */

             if (person == null) {

                 GlobalVariables.getMessageMap().putError(PERSON_REVIEWER_PROPERTY_NAME, RiceKeyConstants.ERROR_CUSTOM, INVALID_PERSON_ERROR);

             }

         }

         if (!GlobalVariables.getMessageMap().hasNoErrors()) {

             throw new ValidationException("errors in search criteria");

         }

     }

     @Override

     public Collection performLookup(LookupForm lookupForm,

             Collection resultTable, boolean bounded) {

         // TODO jjhanso - THIS METHOD NEEDS JAVADOCS

         //return super.performLookup(lookupForm, resultTable, bounded);

         setBackLocation((String) lookupForm.getFieldsForLookup().get(KNSConstants.BACK_LOCATION));

         setDocFormKey((String) lookupForm.getFieldsForLookup().get(KNSConstants.DOC_FORM_KEY));

         Collection displayList;

         // call search method to get results

         if (bounded) {

             displayList = getSearchResults(lookupForm.getFieldsForLookup());

         }

         else {

             displayList = getSearchResultsUnbounded(lookupForm.getFieldsForLookup());

         }

         HashMap<String,Class> propertyTypes = new HashMap<String, Class>();

         boolean hasReturnableRow = false;

         List returnKeys = getReturnKeys();

         List pkNames = getBusinessObjectMetaDataService().listPrimaryKeyFieldNames(getBusinessObjectClass());

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

         // iterate through result list and wrap rows with return url and action urls

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

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

             if(element instanceof PersistableBusinessObject){

                 lookupForm.setLookupObjectId(((PersistableBusinessObject)element).getObjectId());

             }

             BusinessObjectRestrictions businessObjectRestrictions = getBusinessObjectAuthorizationService().getLookupResultRestrictions(element, user);

             HtmlData returnUrl = getReturnUrl(element, lookupForm, returnKeys, businessObjectRestrictions);

             String actionUrls = getActionUrls(element, pkNames, businessObjectRestrictions);

             //Fix for JIRA - KFSMI-2417

             if("".equals(actionUrls)){

                 actionUrls = ACTION_URLS_EMPTY;

             }

             List<Column> columns = getColumns();

             for (Object element2 : columns) {

                 Column col = (Column) element2;

                 String curPropName = col.getPropertyName();

                 Formatter formatter = col.getFormatter();

                 // pick off result column from result list, do formatting

                 String propValue = KNSConstants.EMPTY_STRING;

                 Object prop = null;

                 boolean skipPropTypeCheck = false;

                 //try to get value elsewhere

                 if (element instanceof RuleDelegation) {

                     prop = ((RuleDelegation)element).getDelegationRuleBaseValues().getFieldValues().get(curPropName);

                     skipPropTypeCheck = true;

                 }

                 if (prop == null) {

                     prop = ObjectUtils.getPropertyValue(element, curPropName);

                 }

                 // set comparator and formatter based on property type

                 Class propClass = propertyTypes.get(curPropName);

                 if ( propClass == null && !skipPropTypeCheck) {

                     try {

                         propClass = ObjectUtils.getPropertyType( element, curPropName, getPersistenceStructureService() );

                         propertyTypes.put( curPropName, propClass );

                     } catch (Exception e) {

                         throw new RuntimeException("Cannot access PropertyType for property " + "'" + curPropName + "' " + " on an instance of '" + element.getClass().getName() + "'.", e);

                     }

                 }

                 // formatters

                 if (prop != null) {

                     // for Booleans, always use BooleanFormatter

                     if (prop instanceof Boolean) {

                         formatter = new BooleanFormatter();

                     }

                     // for Dates, always use DateFormatter

                     if (prop instanceof Date) {

                         formatter = new DateFormatter();

                     }

                     // for collection, use the list formatter if a formatter hasn't been defined yet

                     if (prop instanceof Collection && formatter == null) {

                     formatter = new CollectionFormatter();

                     }

                     if (formatter != null) {

                         propValue = (String) formatter.format(prop);

                     }

                     else {

                         propValue = prop.toString();

                     }

                 }

                 // comparator

                 col.setComparator(CellComparatorHelper.getAppropriateComparatorForPropertyClass(propClass));

                 col.setValueComparator(CellComparatorHelper.getAppropriateValueComparatorForPropertyClass(propClass));

                 propValue = maskValueIfNecessary(element.getClass(), curPropName, propValue, businessObjectRestrictions);

                 col.setPropertyValue(propValue);

                 if (StringUtils.isNotBlank(propValue)) {

                     col.setColumnAnchor(getInquiryUrl(element, curPropName));

                 }

             }

             ResultRow row = new ResultRow(columns, returnUrl.constructCompleteHtmlTag(), actionUrls);

             row.setRowId(returnUrl.getName());

             row.setReturnUrlHtmlData(returnUrl);

             // because of concerns of the BO being cached in session on the ResultRow,

             // let's only attach it when needed (currently in the case of export)

             if (getBusinessObjectDictionaryService().isExportable(getBusinessObjectClass())) {

                 row.setBusinessObject(element);

             }

             if(element instanceof PersistableBusinessObject){

                 row.setObjectId((((PersistableBusinessObject)element).getObjectId()));

             }

             boolean rowReturnable = isResultReturnable(element);

             row.setRowReturnable(rowReturnable);

             if (rowReturnable) {

                 hasReturnableRow = true;

             }

             resultTable.add(row);

         }

         lookupForm.setHasReturnableRow(hasReturnableRow);

         return displayList;

     }

     @Override

     public List<Column> getColumns() {

         List<Column> columns = super.getColumns();

         for (Row row : rows) {

             for (Field field : row.getFields()) {

                 Column newColumn = new Column();

                 newColumn.setColumnTitle(field.getFieldLabel());

                 newColumn.setMaxLength(field.getMaxLength());

                 newColumn.setPropertyName(field.getPropertyName());

                 columns.add(newColumn);

             }

         }

         return columns;

     }

     @Override

     public List<HtmlData> getCustomActionUrls(BusinessObject businessObject,

             List pkNames) {

         RuleDelegation ruleDelegation = (RuleDelegation)businessObject;

         List<HtmlData> htmlDataList = new ArrayList<HtmlData>();

         if (StringUtils.isNotBlank(ruleDelegation.getDelegationRuleBaseValues().getRuleTemplateName()) && StringUtils.isNotBlank(getMaintenanceDocumentTypeName())) {

                 if (allowsMaintenanceEditAction(businessObject)) {

                         htmlDataList.add(getUrlData(businessObject, KNSConstants.MAINTENANCE_EDIT_METHOD_TO_CALL, pkNames));

                 }

             if (allowsMaintenanceNewOrCopyAction()) {

                 htmlDataList.add(getUrlData(businessObject, KNSConstants.MAINTENANCE_COPY_METHOD_TO_CALL, pkNames));

             }

         }

         return htmlDataList;

     }

 }