/*

  * 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.kew.rule.web;

 import java.lang.reflect.InvocationTargetException;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.HashMap;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import org.apache.commons.beanutils.BeanUtils;

 import org.apache.commons.beanutils.PropertyUtils;

 import org.apache.commons.lang.ArrayUtils;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceRuntimeException;

 import org.kuali.rice.kew.api.action.ActionRequestPolicy;

 import org.kuali.rice.kew.doctype.bo.DocumentType;

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

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

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

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

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

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

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

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

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

 import org.kuali.rice.kew.rule.bo.RuleAttribute;

 import org.kuali.rice.kew.rule.bo.RuleTemplate;

 import org.kuali.rice.kew.rule.bo.RuleTemplateAttribute;

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

 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.identity.principal.Principal;

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

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

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

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

 /**

  * Some utilities which are utilized by the {@link RuleAction}.

  *

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

  */

 public final class WebRuleUtils {

         public static final String RULE_TEMPLATE_ID_PARAM = "ruleCreationValues.ruleTemplateId";

         public static final String RULE_TEMPLATE_NAME_PARAM = "ruleCreationValues.ruleTemplateName";

         public static final String DOCUMENT_TYPE_NAME_PARAM = "ruleCreationValues.docTypeName";

         public static final String RESPONSIBILITY_ID_PARAM = "ruleCreationValues.responsibilityId";

         private static final String ID_SEPARATOR = ":";

         private static final String RULE_ATTRIBUTES_SECTION_ID = "RuleAttributes";

         private static final String RULE_ATTRIBUTES_SECTION_TITLE = "Rule Attributes";

         private static final String ROLES_MAINTENANCE_SECTION_ID = "RolesMaintenance";

         private WebRuleUtils() {

                 throw new UnsupportedOperationException("do not call");

         }

         /**

          * Copies the existing rule onto the current document.  This is used within the web-based rule GUI to make a

          * copy of a rule on the existing document.  Essentially, this method makes a copy of the rule and all

          * delegates but preserves the document ID of the original rule.

          */

     public static WebRuleBaseValues copyRuleOntoExistingDocument(WebRuleBaseValues rule) throws Exception {

         WebRuleBaseValues ruleCopy = new WebRuleBaseValues();

         PropertyUtils.copyProperties(ruleCopy, rule);

         ruleCopy.setPreviousVersionId(null);

         ruleCopy.setCurrentInd(null);

         ruleCopy.setVersionNbr(null);

         List responsibilities = new ArrayList();

         for (Iterator iter = ruleCopy.getResponsibilities().iterator(); iter.hasNext();) {

             WebRuleResponsibility responsibility = (WebRuleResponsibility) iter.next();

             WebRuleResponsibility responsibilityCopy = new WebRuleResponsibility();

             PropertyUtils.copyProperties(responsibilityCopy, responsibility);

             responsibilityCopy.setResponsibilityId(null);

             responsibilityCopy.setRuleResponsibilityKey(null);

             List delegations = new ArrayList();

             for (Iterator iterator = responsibilityCopy.getDelegationRules().iterator(); iterator.hasNext();) {

                 RuleDelegation delegation = (RuleDelegation) iterator.next();

                 RuleDelegation delegationCopy = new RuleDelegation();

                 PropertyUtils.copyProperties(delegationCopy, delegation);

                 delegationCopy.setDelegateRuleId(null);

                 delegationCopy.setVersionNumber(null);

                 delegationCopy.setRuleDelegationId(null);

                 delegationCopy.setResponsibilityId(null);

                 WebRuleBaseValues delegationRule = ((WebRuleBaseValues) delegation.getDelegationRuleBaseValues());

                 WebRuleBaseValues ruleDelegateCopy = new WebRuleBaseValues();

                 PropertyUtils.copyProperties(ruleDelegateCopy, delegationRule);

                 ruleDelegateCopy.setPreviousVersionId(null);

                 ruleDelegateCopy.setCurrentInd(null);

                 ruleDelegateCopy.setVersionNbr(null);

                 List delegateResps = new ArrayList();

                 for (Iterator iterator1 = ruleDelegateCopy.getResponsibilities().iterator(); iterator1.hasNext();) {

                     WebRuleResponsibility delegateResp = (WebRuleResponsibility) iterator1.next();

                     WebRuleResponsibility delegateRespCopy = new WebRuleResponsibility();

                     PropertyUtils.copyProperties(delegateRespCopy, delegateResp);

                     delegateRespCopy.setResponsibilityId(null);

                     delegateRespCopy.setRuleResponsibilityKey(null);

                     delegateResps.add(delegateRespCopy);

                 }

                 ruleDelegateCopy.setResponsibilities(delegateResps);

                 delegationCopy.setDelegationRuleBaseValues(ruleDelegateCopy);

                 delegations.add(delegationCopy);

             }

             //responsibilityCopy.setDelegationRules(delegations);

             responsibilities.add(responsibilityCopy);

         }

         ruleCopy.setResponsibilities(responsibilities);

         return ruleCopy;

     }

     /**

      * Makes a copy of the rule and clears the document id on the rule and any of its delegates.

      * This method is used for making a copy of a rule for a new document.  It essentially calls

      * the copyRuleOntoExistingDocument method and then clears out the document IDs.

      * 

      * @param webRuleBaseValues

      */

     public static WebRuleBaseValues copyToNewRule(WebRuleBaseValues webRuleBaseValues) throws Exception {

             WebRuleBaseValues newRule = copyRuleOntoExistingDocument(webRuleBaseValues);

             // clear out all document IDs on the rule and it's delegates

             newRule.setDocumentId(null);

             for (Iterator iterator = newRule.getResponsibilities().iterator(); iterator.hasNext(); ) {

                         RuleResponsibility responsibility = (RuleResponsibility) iterator.next();

                         for (Iterator iterator2 = responsibility.getDelegationRules().iterator(); iterator2.hasNext(); ) {

                                 RuleDelegation delegation = (RuleDelegation) iterator2.next();

                                 delegation.getDelegationRuleBaseValues().setDocumentId(null);

                         }

                 }

             return newRule;

     }

     public static void validateRuleTemplateAndDocumentType(RuleBaseValues oldRule, RuleBaseValues newRule, Map<String, String[]> parameters) {

                 String[] ruleTemplateIds = parameters.get(RULE_TEMPLATE_ID_PARAM);

                 String[] ruleTemplateNames = parameters.get(RULE_TEMPLATE_NAME_PARAM);

                 String[] documentTypeNames = parameters.get(DOCUMENT_TYPE_NAME_PARAM);

                 if (ArrayUtils.isEmpty(ruleTemplateIds) && ArrayUtils.isEmpty(ruleTemplateNames)) {

                         throw new RiceRuntimeException("Rule document must be initiated with a valid rule template id or rule template name.");

                 }

                 if (ArrayUtils.isEmpty(documentTypeNames)) {

                         throw new RiceRuntimeException("Rule document must be initiated with a valid document type name.");

                 }

                 RuleTemplate ruleTemplate = null;

                 if (!ArrayUtils.isEmpty(ruleTemplateIds)) {

                         String ruleTemplateId = ruleTemplateIds[0];

                         ruleTemplate = KEWServiceLocator.getRuleTemplateService().findByRuleTemplateId(ruleTemplateId);

                         if (ruleTemplate == null) {

                                 throw new RiceRuntimeException("Failed to load rule template with id '" + ruleTemplateId + "'");

                         }

                 }

                 if (ruleTemplate == null) {

                         String ruleTemplateName = ruleTemplateNames[0];

                         ruleTemplate = KEWServiceLocator.getRuleTemplateService().findByRuleTemplateName(ruleTemplateName);

                         if (ruleTemplate == null) {

                                 throw new RiceRuntimeException("Failed to load rule template with name '" + ruleTemplateName + "'");

                         }

                 }

                 String documentTypeName = documentTypeNames[0];

                 DocumentType documentType = KEWServiceLocator.getDocumentTypeService().findByName(documentTypeName);

                 if (documentType == null) {

                         throw new RiceRuntimeException("Failed to locate document type with name '" + documentTypeName + "'");

                 }

                 // it appears that there is always an old maintainable, even in the case of a new document creation,

                 // if we don't initialize both the old and new versions we get errors during meshSections

                 initializeRuleAfterNew(oldRule, ruleTemplate, documentTypeName);

                 initializeRuleAfterNew(newRule, ruleTemplate, documentTypeName);

         }

         private static void initializeRuleAfterNew(RuleBaseValues rule, RuleTemplate ruleTemplate, String documentTypeName) {

                 rule.setRuleTemplate(ruleTemplate);

                 rule.setRuleTemplateId(ruleTemplate.getRuleTemplateId());

                 rule.setDocTypeName(documentTypeName);

         }

         public static void validateRuleAndResponsibility(RuleDelegation oldRuleDelegation, RuleDelegation newRuleDelegation, Map<String, String[]> parameters) {

                 String[] responsibilityIds = parameters.get(RESPONSIBILITY_ID_PARAM);

                 if (ArrayUtils.isEmpty(responsibilityIds)) {

                         throw new RiceRuntimeException("Delegation rule document must be initiated with a valid responsibility ID to delegate from.");

                 }

                 if (!ArrayUtils.isEmpty(responsibilityIds)) {

                         String responsibilityId = responsibilityIds[0];

                         RuleResponsibility ruleResponsibility = KEWServiceLocator.getRuleService().findRuleResponsibility(responsibilityId);

                         if (ruleResponsibility == null) {

                                 throw new RiceRuntimeException("Failed to locate a rule responsibility for responsibility ID " + responsibilityId);

                         }

                         oldRuleDelegation.setResponsibilityId(responsibilityId);

                         newRuleDelegation.setResponsibilityId(responsibilityId);

                 }

         }

         public static void establishDefaultRuleValues(RuleBaseValues rule) {

                 rule.setActiveInd(true);

         RuleBaseValues defaultRule = ((RuleService) KEWServiceLocator.getService(KEWServiceLocator.RULE_SERVICE)).findDefaultRuleByRuleTemplateId(

                         rule.getRuleTemplate().getDelegationTemplateId());

         if (defaultRule != null) {

             defaultRule.setActivationDate(null);

             defaultRule.setCurrentInd(null);

             defaultRule.setDeactivationDate(null);

             defaultRule.setDocTypeName(null);

             defaultRule.setVersionNumber(null);

             defaultRule.setRuleBaseValuesId(null);

             defaultRule.setTemplateRuleInd(Boolean.FALSE);

             defaultRule.setVersionNbr(null);

             try {

                                 PropertyUtils.copyProperties(rule, defaultRule);

                         } catch (IllegalAccessException e) {

                                 throw new RuntimeException(e);

                         } catch (InvocationTargetException e) {

                                 throw new RuntimeException(e);

                         } catch (NoSuchMethodException e) {

                                 throw new RuntimeException(e);

                         }

         }

         }

         public static List customizeSections(RuleBaseValues rule, List<Section> sections, boolean delegateRule) {

                 List<Section> finalSections = new ArrayList<Section>();

                 for (Section section : sections) {

                         // unfortunately, in the case of an inquiry the sectionId will always be null so we have to check section title

                         if (section.getSectionTitle().equals(RULE_ATTRIBUTES_SECTION_TITLE) || 

                                         RULE_ATTRIBUTES_SECTION_ID.equals(section.getSectionId())) {

                                 List<Row> ruleTemplateRows = getRuleTemplateRows(rule, delegateRule);

                                 if (!ruleTemplateRows.isEmpty()) {

                                         section.setRows(ruleTemplateRows);

                                         finalSections.add(section);

                                 }

                         } else if (ROLES_MAINTENANCE_SECTION_ID.equals(section.getSectionId())) {

                                 if (hasRoles(rule)) {

                                         finalSections.add(section);

                                 }

                         } else {

                                 finalSections.add(section);

                         }

                 }

                 return finalSections;

         }

         public static List<Row> getRuleTemplateRows(RuleBaseValues rule, boolean delegateRule) {

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

                 RuleTemplate ruleTemplate = rule.getRuleTemplate();

                 Map<String, String> fieldNameMap = new HashMap<String, String>();

                 // refetch rule template from service because after persistence in KNS, it comes back without any rule template attributes

                 if (ruleTemplate != null){

                         ruleTemplate = KEWServiceLocator.getRuleTemplateService().findByRuleTemplateId(ruleTemplate.getRuleTemplateId());

                         if (ruleTemplate != null) {

                                 List<RuleTemplateAttribute> ruleTemplateAttributes = ruleTemplate.getActiveRuleTemplateAttributes();

                                 Collections.sort(ruleTemplateAttributes);

                                 for (RuleTemplateAttribute ruleTemplateAttribute : ruleTemplateAttributes) {

                                         if (!ruleTemplateAttribute.isWorkflowAttribute()) {

                                                 continue;

                                         }

                                         WorkflowAttribute workflowAttribute = ruleTemplateAttribute.getWorkflowAttribute();

                                         RuleAttribute ruleAttribute = ruleTemplateAttribute.getRuleAttribute();

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

                                                 ((GenericXMLRuleAttribute) workflowAttribute).setRuleAttribute(ruleAttribute);

                                         }

                                         Map<String, String> parameterMap = getFieldMapForRuleTemplateAttribute(rule, ruleTemplateAttribute);

                                         workflowAttribute.validateRuleData(parameterMap);

                                         List<Row> attributeRows = transformAndPopulateAttributeRows(workflowAttribute.getRuleRows(), ruleTemplateAttribute, rule, fieldNameMap, delegateRule);

                                         rows.addAll(attributeRows);

                                 }

                         }

                         transformFieldConversions(rows, fieldNameMap);

                 }

                 return rows;

         }

         public static void transformFieldConversions(List<Row> rows, Map<String, String> fieldNameMap) {

                 for (Row row : rows) {

                         Map<String, String> transformedFieldConversions = new HashMap<String, String>();

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

                                 Map<String, String> fieldConversions = field.getFieldConversionMap();

                                 for (String lookupFieldName : fieldConversions.keySet()) {

                                         String localFieldName = fieldConversions.get(lookupFieldName);

                                         if (fieldNameMap.containsKey(localFieldName)) {

                                                 // set the transformed value

                                                 transformedFieldConversions.put(lookupFieldName, fieldNameMap.get(localFieldName));

                                         } else {

                                                 // set the original value (not sure if this case will happen, but just in case)

                                                 transformedFieldConversions.put(lookupFieldName, fieldConversions.get(lookupFieldName));

                                         }

                                 }

                                 field.setFieldConversions(transformedFieldConversions);

                         }

                 }

         }

         private static boolean hasRoles(RuleBaseValues rule) {

                 RuleTemplate ruleTemplate = rule.getRuleTemplate();

                 return !ruleTemplate.getRoles().isEmpty();

         }

         /**

          * Processes the Fields on the various attributes Rows to assign an appropriate field name to them so that the

          * field name rendered in the maintenance HTML will properly assign the value to RuleBaseValues.fieldValues.

          */

         public static List<Row> transformAndPopulateAttributeRows(List<Row> attributeRows, RuleTemplateAttribute ruleTemplateAttribute, RuleBaseValues rule, Map<String, String> fieldNameMap, boolean delegateRule) {

                 for (Row row : attributeRows) {

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

                                 String fieldName = field.getPropertyName();

                                 if (!StringUtils.isBlank(fieldName)) {

                                         String valueKey = ruleTemplateAttribute.getRuleTemplateAttributeId() + ID_SEPARATOR + fieldName;

                                         String propertyName;

                                         if (delegateRule) {

                                                 propertyName = "delegationRuleBaseValues.fieldValues(" + valueKey + ")"; 

                                         } else {

                                                 propertyName = "fieldValues(" + valueKey + ")"; 

                                         }

                                         fieldNameMap.put(fieldName, propertyName);

                                         field.setPropertyName(propertyName);

                                         field.setPropertyValue(rule.getFieldValues().get(valueKey));

                                 }

                         }

                 }

                 return attributeRows;

         }

         /**

          * Since editing of a Rule should actually result in a rule with a new ID and new

          * entries in the rule and rule responsibility tables, we need to clear out

          * the primary keys of the rule and related objects.

          */

         public static void clearKeysForSave(RuleBaseValues rule) {

                 rule.setRuleBaseValuesId(null);

                 rule.setActivationDate(null);

                 rule.setDeactivationDate(null);

                 rule.setCurrentInd(false);

                 rule.setVersionNbr(null);

                 rule.setObjectId(null);

                 rule.setVersionNumber(0L);

         }

         public static void clearKeysForSave(RuleDelegation ruleDelegation) {

                 ruleDelegation.setRuleDelegationId(null);

                 ruleDelegation.setObjectId(null);

                 ruleDelegation.setVersionNumber(0L);

                 clearKeysForSave(ruleDelegation.getDelegationRuleBaseValues());

         }

     public static void translateResponsibilitiesForSave(RuleBaseValues rule) {

                 rule.getResponsibilities().clear();

                 for (PersonRuleResponsibility responsibility : rule.getPersonResponsibilities()) {

                         RuleResponsibility ruleResponsibility = new RuleResponsibility();

                         ruleResponsibility.setActionRequestedCd(responsibility.getActionRequestedCd());

                         ruleResponsibility.setPriority(responsibility.getPriority());

                         ruleResponsibility.setResponsibilityId(responsibility.getResponsibilityId());

                         if (ruleResponsibility.getResponsibilityId() == null) {

                                 ruleResponsibility.setResponsibilityId(KEWServiceLocator.getResponsibilityIdService().getNewResponsibilityId());

                         }

                         String principalId = KEWServiceLocator.getIdentityHelperService().getIdForPrincipalName(responsibility.getPrincipalName());

                         ruleResponsibility.setRuleResponsibilityName(principalId);

                         ruleResponsibility.setRuleResponsibilityType(KEWConstants.RULE_RESPONSIBILITY_WORKFLOW_ID);

                         // default the approve policy to First Approve

                         ruleResponsibility.setApprovePolicy(ActionRequestPolicy.FIRST.getCode());

                         rule.getResponsibilities().add(ruleResponsibility);

                 }

                 for (GroupRuleResponsibility responsibility : rule.getGroupResponsibilities()) {

                         RuleResponsibility ruleResponsibility = new RuleResponsibility();

                         ruleResponsibility.setActionRequestedCd(responsibility.getActionRequestedCd());

                         ruleResponsibility.setPriority(responsibility.getPriority());

                         ruleResponsibility.setResponsibilityId(responsibility.getResponsibilityId());

                         if (ruleResponsibility.getResponsibilityId() == null) {

                                 ruleResponsibility.setResponsibilityId(KEWServiceLocator.getResponsibilityIdService().getNewResponsibilityId());

                         }

                         Group group = KEWServiceLocator.getIdentityHelperService().getGroupByName(responsibility.getNamespaceCode(), responsibility.getName());

                         ruleResponsibility.setRuleResponsibilityName(group.getId());

                         ruleResponsibility.setRuleResponsibilityType(KEWConstants.RULE_RESPONSIBILITY_GROUP_ID);

                         ruleResponsibility.setApprovePolicy(ActionRequestPolicy.FIRST.getCode());

                         rule.getResponsibilities().add(ruleResponsibility);

                 }

                 for (RoleRuleResponsibility responsibility : rule.getRoleResponsibilities()) {

                         RuleResponsibility ruleResponsibility = new RuleResponsibility();

                         ruleResponsibility.setActionRequestedCd(responsibility.getActionRequestedCd());

                         ruleResponsibility.setPriority(responsibility.getPriority());

                         ruleResponsibility.setResponsibilityId(responsibility.getResponsibilityId());

                         if (ruleResponsibility.getResponsibilityId() == null) {

                                 ruleResponsibility.setResponsibilityId(KEWServiceLocator.getResponsibilityIdService().getNewResponsibilityId());

                         }

                         ruleResponsibility.setRuleResponsibilityName(responsibility.getRoleName());

                         ruleResponsibility.setRuleResponsibilityType(KEWConstants.RULE_RESPONSIBILITY_ROLE_ID);

                         ruleResponsibility.setApprovePolicy(responsibility.getApprovePolicy());

                         rule.getResponsibilities().add(ruleResponsibility);

                 }

         }

     public static void translateFieldValuesForSave(RuleBaseValues rule) {

             RuleTemplate ruleTemplate = KEWServiceLocator.getRuleTemplateService().findByRuleTemplateId(rule.getRuleTemplateId());

                 /** Populate rule extension values * */

                 List extensions = new ArrayList();

                 for (Iterator iterator = ruleTemplate.getActiveRuleTemplateAttributes().iterator(); iterator.hasNext();) {

                         RuleTemplateAttribute ruleTemplateAttribute = (RuleTemplateAttribute) iterator.next();

                         if (!ruleTemplateAttribute.isWorkflowAttribute()) {

                                 continue;

                         }

                         WorkflowAttribute workflowAttribute = ruleTemplateAttribute.getWorkflowAttribute();

                         RuleAttribute ruleAttribute = ruleTemplateAttribute.getRuleAttribute();

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

                                 ((GenericXMLRuleAttribute) workflowAttribute).setRuleAttribute(ruleAttribute);

                         }

                         Map<String, String> parameterMap = getFieldMapForRuleTemplateAttribute(rule, ruleTemplateAttribute);

                         // validate rule data populates the rule extension values for us

                         List attValidationErrors = workflowAttribute.validateRuleData(parameterMap);

                         // because validation should be handled by business rules now, if we encounter a validation error at this point in

                         // time, let's throw an exception

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

                                 throw new RiceRuntimeException("Encountered attribute validation errors when attempting to save the Rule!");

                         }

                         List ruleExtensionValues = workflowAttribute.getRuleExtensionValues();

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

                                 RuleExtension ruleExtension = new RuleExtension();

                                 ruleExtension.setRuleTemplateAttributeId(ruleTemplateAttribute.getRuleTemplateAttributeId());

                                 ruleExtension.setExtensionValues(ruleExtensionValues);

                                 extensions.add(ruleExtension);

                         }

                 }

                 rule.setRuleExtensions(extensions);

                 for (Iterator iterator = rule.getRuleExtensions().iterator(); iterator.hasNext();) {

                         RuleExtension ruleExtension = (RuleExtension) iterator.next();

                         ruleExtension.setRuleBaseValues(rule);

                         for (Iterator iterator2 = ruleTemplate.getActiveRuleTemplateAttributes().iterator(); iterator2.hasNext();) {

                                 RuleTemplateAttribute ruleTemplateAttribute = (RuleTemplateAttribute) iterator2.next();

                                 if (StringUtils.equals(ruleTemplateAttribute.getRuleTemplateAttributeId(), ruleExtension.getRuleTemplateAttributeId())) {

                                         ruleExtension.setRuleTemplateAttribute(ruleTemplateAttribute);

                                         break;

                                 }

                         }

                         for (Iterator iterator2 = ruleExtension.getExtensionValues().iterator(); iterator2.hasNext();) {

                                 RuleExtensionValue ruleExtensionValue = (RuleExtensionValue) iterator2.next();

                                 ruleExtensionValue.setExtension(ruleExtension);

                         }

                 }

     }

     /**

      * Based on original logic implemented in Rule system.  Essentially constructs a Map of field values related

      * to the given RuleTemplateAttribute.

      */

     public static Map<String, String> getFieldMapForRuleTemplateAttribute(RuleBaseValues rule, RuleTemplateAttribute ruleTemplateAttribute) {

             Map<String, String> fieldMap = new HashMap<String, String>();

             for (String fieldKey : rule.getFieldValues().keySet()) {

                     String ruleTemplateAttributeId = fieldKey.substring(0, fieldKey.indexOf(ID_SEPARATOR));

                     String fieldName = fieldKey.substring(fieldKey.indexOf(ID_SEPARATOR) + 1);

                     if (ruleTemplateAttribute.getRuleTemplateAttributeId().toString().equals(ruleTemplateAttributeId)) {

                             fieldMap.put(fieldName, rule.getFieldValues().get(fieldKey));

                     }

             }

             return fieldMap;

     }

     public static void processRuleForDelegationSave(RuleDelegation ruleDelegation) {

             RuleBaseValues rule = ruleDelegation.getDelegationRuleBaseValues();

             rule.setDelegateRule(true);

             // certain items on a delegated rule responsibility are inherited from parent responsibility, set them to null

             for (RuleResponsibility responsibility : rule.getResponsibilities()) {

                     responsibility.setActionRequestedCd(null);

                     responsibility.setPriority(null);

             }

     }

     public static void populateForCopyOrEdit(RuleBaseValues oldRule, RuleBaseValues newRule) {

                 populateRuleMaintenanceFields(oldRule);

                 populateRuleMaintenanceFields(newRule);

                 // in the case of copy, our fields which are marked read only are cleared, this includes the rule template

                 // name and the document type name but we don't want these cleared

                 if (newRule.getRuleTemplate().getName() == null) {

                         newRule.getRuleTemplate().setName(oldRule.getRuleTemplate().getName());

                 }

                 if (newRule.getDocTypeName() == null) {

                         newRule.setDocTypeName(oldRule.getDocTypeName());

                 }

         }

     /**

          * This method populates fields on RuleBaseValues which are used only for

          * maintenance purposes.  In otherwords, it populates the non-persistent fields

          * on the RuleBaseValues which the maintenance document needs to function

          * (such as the extension field values and responsibilities).

          */

         public static void populateRuleMaintenanceFields(RuleBaseValues rule) {

                 translateResponsibilitiesForLoad(rule);

                 translateRuleExtensionsForLoad(rule);

         }

         public static void translateResponsibilitiesForLoad(RuleBaseValues rule) {

                 for (RuleResponsibility responsibility : rule.getResponsibilities()) {

                         if (responsibility.getRuleResponsibilityType().equals(KEWConstants.RULE_RESPONSIBILITY_WORKFLOW_ID)) {

                                 PersonRuleResponsibility personResponsibility = new PersonRuleResponsibility();

                                 copyResponsibility(responsibility, personResponsibility);

                                 Principal principal = KEWServiceLocator.getIdentityHelperService().getPrincipal(personResponsibility.getRuleResponsibilityName());

                                 personResponsibility.setPrincipalName(principal.getPrincipalName());

                                 rule.getPersonResponsibilities().add(personResponsibility);

                         } else if (responsibility.getRuleResponsibilityType().equals(KEWConstants.RULE_RESPONSIBILITY_GROUP_ID)) {

                                 GroupRuleResponsibility groupResponsibility = new GroupRuleResponsibility();

                                 copyResponsibility(responsibility, groupResponsibility);

                                 Group group = KEWServiceLocator.getIdentityHelperService().getGroup(groupResponsibility.getRuleResponsibilityName());

                                 groupResponsibility.setNamespaceCode(group.getNamespaceCode());

                                 groupResponsibility.setName(group.getName());

                                 rule.getGroupResponsibilities().add(groupResponsibility);

                         } else if (responsibility.getRuleResponsibilityType().equals(KEWConstants.RULE_RESPONSIBILITY_ROLE_ID)) {

                                 RoleRuleResponsibility roleResponsibility = new RoleRuleResponsibility();

                                 copyResponsibility(responsibility, roleResponsibility);

                                 rule.getRoleResponsibilities().add(roleResponsibility);

                         } else {

                                 throw new RiceRuntimeException("Original responsibility with id '" + responsibility.getRuleResponsibilityKey() + "' contained a bad type code of '" + responsibility.getRuleResponsibilityType());

                         }

                 }

                 // since we've loaded the responsibilities, let's clear the originals so they don't get serialized to the maint doc XML

                 rule.getResponsibilities().clear();

         }

         public static void copyResponsibility(RuleResponsibility source, RuleResponsibility target) {

                 try {

                         BeanUtils.copyProperties(target, source);

                 } catch (Exception e) {

                         throw new RiceRuntimeException("Failed to copy properties from source to target responsibility", e);

                 }

         }

         public static void translateRuleExtensionsForLoad(RuleBaseValues rule) {

                 for (RuleExtension ruleExtension : rule.getRuleExtensions()) {

                         String ruleTemplateAttributeId = ruleExtension.getRuleTemplateAttributeId();

                         for (RuleExtensionValue ruleExtensionValue : ruleExtension.getExtensionValues()) {

                                 String fieldMapKey = ruleTemplateAttributeId + ID_SEPARATOR + ruleExtensionValue.getKey();

                                 rule.getFieldValues().put(fieldMapKey, ruleExtensionValue.getValue());

                         }

                 }

                 // since we've loaded the extensions, let's clear the originals so that they don't get serialized to the maint doc XML

                 rule.getRuleExtensions().clear();

         }

         public static void processRuleForCopy(String documentNumber, RuleBaseValues oldRule, RuleBaseValues newRule) {

                 WebRuleUtils.populateForCopyOrEdit(oldRule, newRule);

                 clearKeysForCopy(newRule);

                 newRule.setDocumentId(documentNumber);

         }

         public static void clearKeysForCopy(RuleBaseValues rule) {            

             rule.setRuleBaseValuesId(null);

             rule.setPreviousVersionId(null);

             rule.setPreviousVersion(null);

             rule.setName(null);

             for (PersonRuleResponsibility responsibility : rule.getPersonResponsibilities()) {

                     clearResponsibilityKeys(responsibility);

             }

             for (GroupRuleResponsibility responsibility : rule.getGroupResponsibilities()) {

                     clearResponsibilityKeys(responsibility);

             }

             for (RoleRuleResponsibility responsibility : rule.getRoleResponsibilities()) {

                     clearResponsibilityKeys(responsibility);

             }

     }

     private static void clearResponsibilityKeys(RuleResponsibility responsibility) {

                 responsibility.setResponsibilityId(null);

                 responsibility.setRuleResponsibilityKey(null);

                 responsibility.setRuleBaseValuesId(null);

     }

 }