/*

  * Copyright 2005-2008 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.service.impl;

 import java.io.InputStream;

 import java.sql.Timestamp;

 import java.text.ParseException;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.Comparator;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import java.util.Set;

 import javax.xml.namespace.QName;

 import org.apache.commons.beanutils.PropertyUtils;

 import org.apache.commons.collections.ComparatorUtils;

 import org.apache.commons.lang.ObjectUtils;

 import org.apache.commons.lang.StringUtils;

 import org.jdom.Element;

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

 import org.kuali.rice.kew.actionrequest.service.ActionRequestService;

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

 import org.kuali.rice.kew.doctype.service.DocumentTypeService;

 import org.kuali.rice.kew.dto.WorkflowIdDTO;

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

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

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

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

 import org.kuali.rice.kew.export.ExportDataSet;

 import org.kuali.rice.kew.identity.Id;

 import org.kuali.rice.kew.messaging.MessageServiceNames;

 import org.kuali.rice.kew.responsibility.service.ResponsibilityIdService;

 import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValue;

 import org.kuali.rice.kew.routeheader.service.RouteHeaderService;

 import org.kuali.rice.kew.rule.MyRules2;

 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.RuleRoutingDefinition;

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

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

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

 import org.kuali.rice.kew.rule.dao.RuleDAO;

 import org.kuali.rice.kew.rule.dao.RuleResponsibilityDAO;

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

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

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

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

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

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

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

 import org.kuali.rice.kew.user.UserId;

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

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

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

 import org.kuali.rice.kew.validation.RuleValidationContext;

 import org.kuali.rice.kew.validation.ValidationResults;

 import org.kuali.rice.kew.web.session.UserSession;

 import org.kuali.rice.kew.workgroup.GroupId;

 import org.kuali.rice.kew.xml.RuleXmlParser;

 import org.kuali.rice.kew.xml.XmlConstants;

 import org.kuali.rice.kew.xml.export.RuleXmlExporter;

 import org.kuali.rice.kim.bo.Group;

 import org.kuali.rice.kim.bo.entity.KimPrincipal;

 import org.kuali.rice.kim.service.IdentityManagementService;

 import org.kuali.rice.kim.service.KIMServiceLocator;

 import org.kuali.rice.kns.util.Guid;

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

 import org.kuali.rice.ksb.service.KSBServiceLocator;

 public class RuleServiceImpl implements RuleService {

     private static final String USING_RULE_CACHE_IND = "CACHING_IND";

     private static final String XML_PARSE_ERROR = "general.error.parsexml";

     private static final String RULE_GROUP_CACHE = "org.kuali.workflow.rules.RuleCache";

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

     private RuleDAO ruleDAO;

     private RuleResponsibilityDAO ruleResponsibilityDAO;

     public RuleResponsibilityDAO getRuleResponsibilityDAO() {

         return ruleResponsibilityDAO;

     }

     public RuleBaseValues getRuleByName(String name) {

         return ruleDAO.findRuleBaseValuesByName(name);

     }

     public RuleBaseValues findDefaultRuleByRuleTemplateId(Long ruleTemplateId){

         return this.ruleDAO.findDefaultRuleByRuleTemplateId(ruleTemplateId);

     }

     public void setRuleResponsibilityDAO(RuleResponsibilityDAO ruleResponsibilityDAO) {

         this.ruleResponsibilityDAO = ruleResponsibilityDAO;

     }

     public void save2(RuleBaseValues ruleBaseValues) throws Exception {

         save2(ruleBaseValues, null, true);

     }

     public void save2(RuleBaseValues ruleBaseValues, RuleDelegation ruleDelegation, boolean saveDelegations) throws Exception {

         if (ruleBaseValues.getPreviousVersionId() != null) {

             RuleBaseValues oldRule = findRuleBaseValuesById(ruleBaseValues.getPreviousVersionId());

             ruleBaseValues.setPreviousVersion(oldRule);

             ruleBaseValues.setCurrentInd(Boolean.FALSE);

             ruleBaseValues.setVersionNbr(getNextVersionNumber(oldRule));

         }

         if (ruleBaseValues.getVersionNbr() == null) {

             ruleBaseValues.setVersionNbr(Integer.valueOf(0));

         }

         if (ruleBaseValues.getCurrentInd() == null) {

             ruleBaseValues.setCurrentInd(Boolean.FALSE);

         }

         // iterate through all associated responsibilities, and if they are unsaved (responsibilityId is null)

         // set a new id on them, and recursively save any associated delegation rules

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

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

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

                 responsibility.setResponsibilityId(getResponsibilityIdService().getNewResponsibilityId());

             }

             if (saveDelegations) {

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

                     RuleDelegation localRuleDelegation = (RuleDelegation) iter.next();

                     save2(localRuleDelegation.getDelegationRuleBaseValues(), localRuleDelegation, true);

                 }

             }

         }

         validate2(ruleBaseValues, ruleDelegation, null);

         getRuleDAO().save(ruleBaseValues);

     }

     public void makeCurrent(Long routeHeaderId) {

         makeCurrent(findByRouteHeaderId(routeHeaderId));

     }

     public void makeCurrent(List rules) {

         PerformanceLogger performanceLogger = new PerformanceLogger();

         boolean isGenerateRuleArs = true;

         String generateRuleArs = Utilities.getKNSParameterValue(KEWConstants.KEW_NAMESPACE, KNSConstants.DetailTypes.RULE_DETAIL_TYPE, KEWConstants.RULE_GENERATE_ACTION_REQESTS_IND);

         if (!StringUtils.isBlank(generateRuleArs)) {

             isGenerateRuleArs = KEWConstants.YES_RULE_CHANGE_AR_GENERATION_VALUE.equalsIgnoreCase(generateRuleArs);

         }

         Set responsibilityIds = new HashSet();

         HashMap rulesToSave = new HashMap();

         Collections.sort(rules, new RuleDelegationSorter());

         boolean delegateFirst = false;

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

             RuleBaseValues rule = (RuleBaseValues) iter.next();

             performanceLogger.log("Preparing rule: " + rule.getDescription());

             rule.setCurrentInd(Boolean.TRUE);

             Timestamp date = new Timestamp(System.currentTimeMillis());

             rule.setActivationDate(date);

             try {

                 rule.setDeactivationDate(new Timestamp(RiceConstants.getDefaultDateFormat().parse("01/01/2100").getTime()));

             } catch (Exception e) {

                 LOG.error("Parse Exception", e);

             }

             rulesToSave.put(rule.getRuleBaseValuesId(), rule);

             RuleBaseValues oldRule = rule.getPreviousVersion();

             if (oldRule != null) {

                 performanceLogger.log("Setting previous rule: " + oldRule.getRuleBaseValuesId() + " to non current.");

                 oldRule.setCurrentInd(Boolean.FALSE);

                 oldRule.setDeactivationDate(date);

                 rulesToSave.put(oldRule.getRuleBaseValuesId(), oldRule);

                 if (!delegateFirst) {

                     responsibilityIds.addAll(getResponsibilityIdsFromGraph(oldRule, isGenerateRuleArs));

                 }

                 //TODO if more than one delegate is edited from the create delegation screen (which currently can not happen), then this logic will not work.

                 if (rule.getDelegateRule().booleanValue() && rule.getPreviousVersionId() != null) {

                     delegateFirst = true;

                 }

                 List oldDelegationRules = findOldDelegationRules(oldRule, rule, performanceLogger);

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

                     RuleBaseValues delegationRule = (RuleBaseValues) iterator.next();

                     performanceLogger.log("Setting previous delegation rule: " + delegationRule.getRuleBaseValuesId() + "to non current.");

                     delegationRule.setCurrentInd(Boolean.FALSE);

                     rulesToSave.put(delegationRule.getRuleBaseValuesId(), delegationRule);

                     responsibilityIds.addAll(getResponsibilityIdsFromGraph(delegationRule, isGenerateRuleArs));

                 }

             }

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

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

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

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

                     delegation.getDelegationRuleBaseValues().setCurrentInd(Boolean.TRUE);

                     RuleBaseValues delegatorRule = delegation.getDelegationRuleBaseValues();

                     performanceLogger.log("Setting delegate rule: " + delegatorRule.getDescription() + " to current.");

                     if (delegatorRule.getActivationDate() == null) {

                         delegatorRule.setActivationDate(date);

                     }

                     try {

                         delegatorRule.setDeactivationDate(new Timestamp(RiceConstants.getDefaultDateFormat().parse("01/01/2100").getTime()));

                     } catch (Exception e) {

                         LOG.error("Parse Exception", e);

                     }

                     rulesToSave.put(delegatorRule.getRuleBaseValuesId(), delegatorRule);

                 }

             }

         }

         Map<String, Long> notifyMap = new HashMap<String, Long>();

         for (Iterator iterator = rulesToSave.values().iterator(); iterator.hasNext();) {

             RuleBaseValues rule = (RuleBaseValues) iterator.next();

             getRuleDAO().save(rule);

             performanceLogger.log("Saved rule: " + rule.getRuleBaseValuesId());

             installNotification(rule, notifyMap);

         }

         LOG.info("Notifying rule cache of "+notifyMap.size()+" cache changes.");

         for (Iterator iterator = notifyMap.values().iterator(); iterator.hasNext();) {

             queueRuleCache((Long)iterator.next());

         }

         getActionRequestService().updateActionRequestsForResponsibilityChange(responsibilityIds);

         performanceLogger.log("Time to make current");

     }

     /**

      * TODO consolidate this method with makeCurrent.  The reason there's a seperate implementation is because the

      * original makeCurrent(...) could not properly handle versioning a List of multiple rules (including multiple

      * delegates rules for a single parent.  ALso, this work is being done for a patch so we want to mitigate the

      * impact on the existing rule code.

      *

      * <p>This version will only work for remove/replace operations where rules

      * aren't being added or removed.  This is why it doesn't perform some of the functions like checking

      * for delegation rules that were removed from a parent rule.

      */

     public void makeCurrent2(List rules) {

         PerformanceLogger performanceLogger = new PerformanceLogger();

         boolean isGenerateRuleArs = true;

         String generateRuleArs = Utilities.getKNSParameterValue(KEWConstants.KEW_NAMESPACE, KNSConstants.DetailTypes.RULE_DETAIL_TYPE, KEWConstants.RULE_GENERATE_ACTION_REQESTS_IND);

         if (!StringUtils.isBlank(generateRuleArs)) {

             isGenerateRuleArs = KEWConstants.YES_RULE_CHANGE_AR_GENERATION_VALUE.equalsIgnoreCase(generateRuleArs);

         }

         Set<Long> responsibilityIds = new HashSet<Long>();

         Map<Long, RuleBaseValues> rulesToSave = new HashMap<Long, RuleBaseValues>();

         Collections.sort(rules, new RuleDelegationSorter());

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

             RuleBaseValues rule = (RuleBaseValues) iter.next();

             performanceLogger.log("Preparing rule: " + rule.getDescription());

             rule.setCurrentInd(Boolean.TRUE);

             Timestamp date = new Timestamp(System.currentTimeMillis());

             rule.setActivationDate(date);

             try {

                 rule.setDeactivationDate(new Timestamp(RiceConstants.getDefaultDateFormat().parse("01/01/2100").getTime()));

             } catch (Exception e) {

                 LOG.error("Parse Exception", e);

             }

             rulesToSave.put(rule.getRuleBaseValuesId(), rule);

             RuleBaseValues oldRule = rule.getPreviousVersion();

             if (oldRule != null) {

                 performanceLogger.log("Setting previous rule: " + oldRule.getRuleBaseValuesId() + " to non current.");

                 oldRule.setCurrentInd(Boolean.FALSE);

                 oldRule.setDeactivationDate(date);

                 rulesToSave.put(oldRule.getRuleBaseValuesId(), oldRule);

                 responsibilityIds.addAll(getModifiedResponsibilityIds(oldRule, rule));

             }

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

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

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

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

                     RuleBaseValues delegateRule = delegation.getDelegationRuleBaseValues();

                     delegateRule.setCurrentInd(Boolean.TRUE);

                     performanceLogger.log("Setting delegate rule: " + delegateRule.getDescription() + " to current.");

                     if (delegateRule.getActivationDate() == null) {

                         delegateRule.setActivationDate(date);

                     }

                     try {

                         delegateRule.setDeactivationDate(new Timestamp(RiceConstants.getDefaultDateFormat().parse("01/01/2100").getTime()));

                     } catch (Exception e) {

                         LOG.error("Parse Exception", e);

                     }

                     rulesToSave.put(delegateRule.getRuleBaseValuesId(), delegateRule);

                 }

             }

         }

         Map<String, Long> notifyMap = new HashMap<String, Long>();

         for (RuleBaseValues rule : rulesToSave.values()) {

             getRuleDAO().save(rule);

             performanceLogger.log("Saved rule: " + rule.getRuleBaseValuesId());

             installNotification(rule, notifyMap);

         }

         LOG.info("Notifying rule cache of "+notifyMap.size()+" cache changes.");

         for (Iterator iterator = notifyMap.values().iterator(); iterator.hasNext();) {

             queueRuleCache((Long)iterator.next());

         }

         if (isGenerateRuleArs) {

             getActionRequestService().updateActionRequestsForResponsibilityChange(responsibilityIds);

         }

         performanceLogger.log("Time to make current");

     }

     /**

      * makeCurrent(RuleBaseValues) is the version of makeCurrent which is initiated from the new Routing Rule

      * Maintenance document.  Because of the changes in the data model and the front end here,

      * this method can be much less complicated than the previous 2!

      */

     public void makeCurrent(RuleBaseValues rule, boolean isRetroactiveUpdatePermitted) {

             makeCurrent(null, rule, isRetroactiveUpdatePermitted);

     }

     public void makeCurrent(RuleDelegation ruleDelegation, boolean isRetroactiveUpdatePermitted) {

             makeCurrent(ruleDelegation, ruleDelegation.getDelegationRuleBaseValues(), isRetroactiveUpdatePermitted);

     }

     protected void makeCurrent(RuleDelegation ruleDelegation, RuleBaseValues rule, boolean isRetroactiveUpdatePermitted) {

         PerformanceLogger performanceLogger = new PerformanceLogger();

         boolean isGenerateRuleArs = false;

         if (isRetroactiveUpdatePermitted) {

                 isGenerateRuleArs = true;

                 String generateRuleArs = Utilities.getKNSParameterValue(KEWConstants.KEW_NAMESPACE, KNSConstants.DetailTypes.RULE_DETAIL_TYPE, KEWConstants.RULE_GENERATE_ACTION_REQESTS_IND);

                 if (!StringUtils.isBlank(generateRuleArs)) {

                         isGenerateRuleArs = KEWConstants.YES_RULE_CHANGE_AR_GENERATION_VALUE.equalsIgnoreCase(generateRuleArs);

                 }

         }

         Set<Long> responsibilityIds = new HashSet<Long>();

         performanceLogger.log("Preparing rule: " + rule.getDescription());

         Map<Long, RuleBaseValues> rulesToSave = new HashMap<Long, RuleBaseValues>();

         generateRuleNameIfNeeded(rule);

         assignResponsibilityIds(rule);

         rule.setCurrentInd(Boolean.TRUE);

         Timestamp date = new Timestamp(System.currentTimeMillis());

         rule.setActivationDate(date);

         rule.setDeactivationDate(null);

         rulesToSave.put(rule.getRuleBaseValuesId(), rule);

         if (rule.getPreviousVersionId() != null) {

                 RuleBaseValues oldRule = findRuleBaseValuesById(rule.getPreviousVersionId());

                 rule.setPreviousVersion(oldRule);

         }

         rule.setVersionNbr(0);

         RuleBaseValues oldRule = rule.getPreviousVersion();

         if (oldRule != null) {

                 performanceLogger.log("Setting previous rule: " + oldRule.getRuleBaseValuesId() + " to non current.");

                 oldRule.setCurrentInd(Boolean.FALSE);

                 oldRule.setDeactivationDate(date);

                 rulesToSave.put(oldRule.getRuleBaseValuesId(), oldRule);

                 responsibilityIds.addAll(getModifiedResponsibilityIds(oldRule, rule));

                 rule.setVersionNbr(getNextVersionNumber(oldRule));

         }

         boolean isRuleDelegation = ruleDelegation != null;

         Map<String, Long> notifyMap = new HashMap<String, Long>(); 

         for (RuleBaseValues ruleToSave : rulesToSave.values()) {                

                 getRuleDAO().save(ruleToSave);

                 performanceLogger.log("Saved rule: " + ruleToSave.getRuleBaseValuesId());

             if (!isRuleDelegation) {

                 installNotification(ruleToSave, notifyMap);

             } 

         }

         if (isRuleDelegation) {

                 responsibilityIds.add(ruleDelegation.getResponsibilityId());

                 ruleDelegation.setDelegateRuleId(rule.getRuleBaseValuesId());

                 getRuleDelegationService().save(ruleDelegation);

                 installDelegationNotification(ruleDelegation.getResponsibilityId(), notifyMap);

         }

         LOG.info("Notifying rule cache of "+notifyMap.size()+" cache changes.");

         for (Iterator iterator = notifyMap.values().iterator(); iterator.hasNext();) {

             if (isRuleDelegation) {

                 queueDelegationRuleCache((Long)iterator.next());

             } else {

                 queueRuleCache((Long)iterator.next());

             } 

         }

         if (isGenerateRuleArs) {

             getActionRequestService().updateActionRequestsForResponsibilityChange(responsibilityIds);

         }

         performanceLogger.log("Time to make current");

     }

     private void queueRuleCache(Long ruleId){

 //      PersistedMessage ruleCache = new PersistedMessage();

 //      ruleCache.setQueuePriority(KEWConstants.ROUTE_QUEUE_RULE_CACHE_PRIORITY);

 //      ruleCache.setQueueDate(new Timestamp(new Date().getTime()));

 //      ruleCache.setQueueStatus(KEWConstants.ROUTE_QUEUE_QUEUED);

 //      ruleCache.setRetryCount(new Integer(0));

 //      ruleCache.setPayload("" + ruleId);

 //      ruleCache.setProcessorClassName("org.kuali.rice.ksb.cache.RuleCacheProcessor");

 //      getRouteQueueService().requeueDocument(ruleCache);

         RuleCacheProcessor ruleCacheProcessor = MessageServiceNames.getRuleCacheProcessor();

         ruleCacheProcessor.clearRuleFromCache(ruleId);

     }

 //  private RouteQueueService getRouteQueueService() {

 //  return (RouteQueueService)SpringServiceLocator.getService(SpringServiceLocator.ROUTE_QUEUE_SRV);

 //  }

     /**

      * Ensure that we don't have any notification duplication.

      */

     private void installNotification(RuleBaseValues rule, Map<String, Long> notifyMap) {

             // don't notify the cache if it's a "template" rule!

             if (!rule.getTemplateRuleInd()) {

                     String key = getRuleCacheKey(rule.getRuleTemplateName(), rule.getDocTypeName());

                     if (!notifyMap.containsKey(key)) {

                             notifyMap.put(key, rule.getRuleBaseValuesId());

                     }

             }

     }

     private void queueDelegationRuleCache(Long responsibilityId) {

         RuleDelegationCacheProcessor ruleDelegationCacheProcessor = (RuleDelegationCacheProcessor)KSBServiceLocator.getMessageHelper().getServiceAsynchronously(new QName("RuleDelegationCacheProcessorService"), null, null, null, null);        

         ruleDelegationCacheProcessor.clearRuleDelegationFromCache(responsibilityId);            

     }

     private void installDelegationNotification(Long responsibilityId, Map<String, Long> notifyMap) {

             // don't notify the cache if it's a "template" rule!

             String key = getRuleDlgnCacheKey(responsibilityId);

             if (!notifyMap.containsKey(key)) {

                     notifyMap.put(key, responsibilityId);

             }

     }

         protected String getRuleDlgnCacheKey(Long responsibilityId) {

                 return "RuleDlgnCache:" + responsibilityId;

         }

     public RuleBaseValues getParentRule(Long ruleBaseValuesId) {

         return getRuleDAO().getParentRule(ruleBaseValuesId);

     }

     public void notifyCacheOfDocumentTypeChange(DocumentType documentType) {

         DocumentType rootDocumentType = KEWServiceLocator.getDocumentTypeService().findRootDocumentType(documentType);

         notifyCacheOfDocumentTypeChangeFromRoot(rootDocumentType, documentType);

         notifyCacheOfDocumentTypeChangeFromParent(documentType);

     }

     /**

      * Flushes rules cached for the given DocumentType and then recursivley flushes rules cached

      * for all children DocumentTypes.

      */

     protected void notifyCacheOfDocumentTypeChangeFromParent(DocumentType documentType) {

         flushDocumentTypeFromCache(documentType.getName());

         for (Iterator iter = documentType.getChildrenDocTypes().iterator(); iter.hasNext();) {

             notifyCacheOfDocumentTypeChangeFromParent((DocumentType) iter.next());

         }

     }

     /**

      * Flushes rules cached from the root of the DocumentType hierarchy (at the given root DocumentType).  Stops

      * when it hits the given DocumentType.  This method exists because of the nature of

      * DocumentTypeService.findRootDocumentType(...).  Whenever we have a modification to child document type

      * and we call findRootDocumentType(...) on it, we end up getting back a version of the root document type

      * which is cached in the OJB transaction cache and doesn't have the appropriate child document type attached.

      * A better way to handle this would be to go into the DocumentType service and fix how it versions document

      * types in versionAndSave to prevent this issue from occurring.

      *

      * <p>If such a fix was made then we could simply pass the root DocumentType into notifyCacheOfDocumentTypeChange

      * and be gauranteed that we will see all appropriate children as we call getChildrenDocTypes().

      *

      * <p>One last note, we don't necesarily have to stop this cache flusing at the given DocumentType but there's

      * no reason to duplicate the work that is going to be done in notifyCacheOfDocumentTypeChangeFromParent.

      */

     protected void notifyCacheOfDocumentTypeChangeFromRoot(DocumentType rootDocumentType, DocumentType documentType) {

         if (rootDocumentType.getName().equals(documentType.getName())) {

             return;

         }

         flushDocumentTypeFromCache(rootDocumentType.getName());

         for (Iterator iter = rootDocumentType.getChildrenDocTypes().iterator(); iter.hasNext();) {

             notifyCacheOfDocumentTypeChangeFromRoot((DocumentType) iter.next(), documentType);

         }

     }

     public void notifyCacheOfRuleChange(RuleBaseValues rule, DocumentType documentType) {

         Boolean cachingRules = Boolean.valueOf(Utilities.getKNSParameterBooleanValue(KEWConstants.KEW_NAMESPACE, KNSConstants.DetailTypes.RULE_DETAIL_TYPE, USING_RULE_CACHE_IND));

         LOG.info("Entering notifyCacheOfRuleChange.  CachingRules: " + cachingRules + " ; ruleID: " + rule.getRuleBaseValuesId());

         if (!cachingRules.booleanValue()) {

             return;

         }

         // named rules may be templateless, and therefore cannot be mapped into the cache by templatename/doctype key

         // but we still need to make sure that if there was a previous version with a template, that the cache is blown away

         String ruleTemplateName = null;

         if (rule.getRuleTemplate() == null) {

             if (rule.getPreviousVersion() != null) {

                 RuleBaseValues prev = rule.getPreviousVersion();

                 if (prev.getRuleTemplate() != null) {

                     ruleTemplateName = prev.getRuleTemplate().getName();

                 }

             }

         } else {

             ruleTemplateName = rule.getRuleTemplate().getName();

         }

         if (documentType == null) {

             documentType = getDocumentTypeService().findByName(rule.getDocTypeName());

             // if it's a delegate rule, we need to look at the parent's template

             if (Boolean.TRUE.equals(rule.getDelegateRule())) {

                 List delegations = getRuleDelegationService().findByDelegateRuleId(rule.getRuleBaseValuesId());

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

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

                     RuleBaseValues parentRule = ruleDelegation.getRuleResponsibility().getRuleBaseValues();

                     if (Boolean.TRUE.equals(parentRule.getCurrentInd())) {

                         ruleTemplateName = parentRule.getRuleTemplate().getName();

                         break;

                     }

                 }

             }

         }

         flushListFromCache(ruleTemplateName, documentType.getName());

 //      if (getListFromCache(ruleTemplateName, documentType.getName()) != null) {

 //      eventGenerator.notify(new CacheDataModifiedEvent(RULE_CACHE_NAME, getRuleCacheKey(ruleTemplateName, documentType.getName())));

 //      }

         //}

         //walk the down the document hierarchy when refreshing the cache. The

         // rule could be cached through more than one path

         //HREDOC could be cached under HREDOC.child and HREDOC.child1

         for (Iterator iter = documentType.getChildrenDocTypes().iterator(); iter.hasNext();) {

             DocumentType childDocumentType = (DocumentType) iter.next();

             //SpringServiceLocator.getCacheAdministrator().flushEntry(getRuleCacheKey(ruleTemplateName, childDocumentType.getName()));

 //          if (getListFromCache(rule.getRuleTemplate().getName(), childDocumentType.getName()) != null) {

 //          eventGenerator.notify(new CacheDataModifiedEvent(RULE_CACHE_NAME, getRuleCacheKey(rule.getRuleTemplate().getName(), childDocumentType.getName())));

 //          }

             notifyCacheOfRuleChange(rule, childDocumentType);

         }

         LOG.info("Leaving notifyCacheOfRuleChange.  CachingRules: " + cachingRules + " ; ruleID: " + rule.getRuleBaseValuesId() + " ; documentType: " + documentType.getDocumentTypeId());

     }

     /**

      * Returns the key of the rule cache.

      */

     protected String getRuleCacheKey(String ruleTemplateName, String docTypeName) {

         return "RuleCache:" + ruleTemplateName + "_" + docTypeName;

     }

     /*

      * Return the cache group name for the given DocumentType

      */

     protected String getDocumentTypeRuleCacheGroupName(String documentTypeName) {

         return "DocumentTypeRuleCache:"+documentTypeName;

     }

     protected List<RuleBaseValues> getListFromCache(String ruleTemplateName, String documentTypeName) {

         LOG.debug("Retrieving List of Rules from cache for ruleTemplate='" + ruleTemplateName + "' and documentType='" + documentTypeName + "'");

         return (List) KEWServiceLocator.getCacheAdministrator().getFromCache(getRuleCacheKey(ruleTemplateName, documentTypeName));

         //return (List) SpringServiceLocator.getCache().getCachedObjectById(RULE_CACHE_NAME, getRuleCacheKey(ruleTemplateName, documentTypeName));

     }

     protected void putListInCache(String ruleTemplateName, String documentTypeName, List<RuleBaseValues> rules) {

         assert(ruleTemplateName != null) : "putListInCache was called with a null ruleTemplateName";

         LOG.info("Caching " + rules.size() + " rules for ruleTemplate='" + ruleTemplateName + "' and documentType='" + documentTypeName + "'");

         String groups[] = new String[] { getDocumentTypeRuleCacheGroupName(documentTypeName), RULE_GROUP_CACHE };

         KEWServiceLocator.getCacheAdministrator().putInCache(getRuleCacheKey(ruleTemplateName, documentTypeName), rules, groups);

     }

     protected void flushDocumentTypeFromCache(String documentTypeName) {

         LOG.info("Flushing DocumentType from Cache for the given name: " + documentTypeName);

         KEWServiceLocator.getCacheAdministrator().flushGroup(getDocumentTypeRuleCacheGroupName(documentTypeName));

     }

     protected void flushListFromCache(String ruleTemplateName, String documentTypeName) {

         LOG.info("Flushing rules from Cache for ruleTemplate='" + ruleTemplateName + "' and documentType='" + documentTypeName + "'");

         KEWServiceLocator.getCacheAdministrator().flushEntry(getRuleCacheKey(ruleTemplateName, documentTypeName));

     }

     public void flushRuleCache() {

         LOG.info("Flushing entire Rule Cache.");

         KEWServiceLocator.getCacheAdministrator().flushGroup(RULE_GROUP_CACHE);

     }

     private Set getResponsibilityIdsFromGraph(RuleBaseValues rule, boolean isRuleCollecting) {

         Set responsibilityIds = new HashSet();

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

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

             if (isRuleCollecting) {

                 responsibilityIds.add(responsibility.getResponsibilityId());

             }

         }

         return responsibilityIds;

     }

     /**

      * Returns the responsibility IDs that were modified between the 2 given versions of the rule.  Any added

      * or removed responsibilities are also included in the returned Set.

      */

     private Set<Long> getModifiedResponsibilityIds(RuleBaseValues oldRule, RuleBaseValues newRule) {

         Map<Long, RuleResponsibility> modifiedResponsibilityMap = new HashMap<Long, RuleResponsibility>();

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

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

             modifiedResponsibilityMap.put(responsibility.getResponsibilityId(), responsibility);

         }

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

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

             RuleResponsibility oldResponsibility = modifiedResponsibilityMap.get(responsibility.getResponsibilityId());

             if (oldResponsibility == null) {

                 // if there's no old responsibility then it's a new responsibility, add it

                 modifiedResponsibilityMap.put(responsibility.getResponsibilityId(), responsibility);

             } else if (!hasResponsibilityChanged(oldResponsibility, responsibility)) {

                 // if it hasn't been modified, remove it from the collection of modified ids

                 modifiedResponsibilityMap.remove(responsibility.getResponsibilityId());

             }

         }

         return modifiedResponsibilityMap.keySet();

     }

     /**

      * Determines if the given responsibilities are different or not.

      */

     private boolean hasResponsibilityChanged(RuleResponsibility oldResponsibility, RuleResponsibility newResponsibility) {

         return !ObjectUtils.equals(oldResponsibility.getActionRequestedCd(), newResponsibility.getActionRequestedCd()) ||

         !ObjectUtils.equals(oldResponsibility.getApprovePolicy(), newResponsibility.getActionRequestedCd()) ||

         !ObjectUtils.equals(oldResponsibility.getPriority(), newResponsibility.getPriority()) ||

         !ObjectUtils.equals(oldResponsibility.getRole(), newResponsibility.getRole()) ||

         !ObjectUtils.equals(oldResponsibility.getRuleResponsibilityName(), newResponsibility.getRuleResponsibilityName()) ||

         !ObjectUtils.equals(oldResponsibility.getRuleResponsibilityType(), newResponsibility.getRuleResponsibilityType());

     }

     /*

      private Map findOldDelegationRules(RuleBaseValues oldRule, RuleBaseValues newRule, PerformanceLogger performanceLogger) {

         Map oldRules = new HashMap();

         performanceLogger.log("Begin to get delegation rules.");

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

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

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

                 RuleDelegation ruleDelegation = (RuleDelegation) delIterator.next();

                 RuleBaseValues delegateRule = ruleDelegation.getDelegationRuleBaseValues();

                 performanceLogger.log("Found delegate rule: "+ delegateRule.getRuleBaseValuesId());

                 oldRules.put(ruleDelegation.getDelegateRuleId(), delegateRule);

             }

         }

         performanceLogger.log("Begin removing rule delegations from new rule.");

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

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

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

                 RuleDelegation ruleDelegation = (RuleDelegation) delIterator.next();

                 performanceLogger.log("Removing rule delegation: "+ ruleDelegation.getDelegateRuleId()+" from new rule.");

                 oldRules.remove(ruleDelegation.getDelegateRuleId());

             }

         }

         return oldRules;

     }

      */

     /**

      * This method will find any old delegation rules on the previous version of the parent rule which are not on the

      * new version of the rule so that they can be marked non-current.

      */

     private List findOldDelegationRules(RuleBaseValues oldRule, RuleBaseValues newRule, PerformanceLogger performanceLogger) {

         performanceLogger.log("Begin to get delegation rules.");

         List oldDelegations = getRuleDAO().findOldDelegations(oldRule, newRule);

         performanceLogger.log("Located "+oldDelegations.size()+" old delegation rules.");

         return oldDelegations;

     }

     public Long route2(Long routeHeaderId, MyRules2 myRules, KimPrincipal principal, String annotation, boolean blanketApprove) throws Exception {

         List errors = new ArrayList();

         if (myRules.getRules().isEmpty()) {

             errors.add(new WorkflowServiceErrorImpl("Rule required", "rule.required"));

         }

         if (!errors.isEmpty()) {

             throw new WorkflowServiceErrorException("RuleBaseValues validation errors", errors);

         }

         WorkflowDocument workflowDocument = null;

         if (routeHeaderId == null) {

             workflowDocument = new WorkflowDocument(new WorkflowIdDTO(principal.getPrincipalId()), getRuleDocmentTypeName(myRules.getRules()));

         } else {

             workflowDocument = new WorkflowDocument(new WorkflowIdDTO(principal.getPrincipalId()), routeHeaderId);

         }

         for (Iterator iter = myRules.getRules().iterator(); iter.hasNext();) {

             RuleBaseValues rule = (RuleBaseValues) iter.next();

             rule.setRouteHeaderId(workflowDocument.getRouteHeaderId());

             workflowDocument.addAttributeDefinition(new RuleRoutingDefinition(rule.getDocTypeName()));

             getRuleDAO().retrieveAllReferences(rule);

             save2(rule);

         }

         workflowDocument.setTitle(generateTitle(myRules));

         if (blanketApprove) {

             workflowDocument.blanketApprove(annotation);

         } else {

             workflowDocument.routeDocument(annotation);

         }

         return workflowDocument.getRouteHeaderId();

     }

     public Long routeRuleWithDelegate(Long routeHeaderId, RuleBaseValues parentRule, RuleBaseValues delegateRule, KimPrincipal principal, String annotation, boolean blanketApprove) throws Exception {

         if (parentRule == null) {

             throw new IllegalArgumentException("Cannot route a delegate without a parent rule.");

         }

         if (parentRule.getDelegateRule().booleanValue()) {

             throw new IllegalArgumentException("Parent rule cannot be a delegate.");

         }

         if (parentRule.getPreviousVersionId() == null && delegateRule.getPreviousVersionId() == null) {

             throw new IllegalArgumentException("Previous rule version required.");

         }

         // if the parent rule is new, unsaved, then save it

 //      boolean isRoutingParent = parentRule.getRuleBaseValuesId() == null;

 //      if (isRoutingParent) {

 //      // it's very important that we do not save delegations here (that's what the false parameter is for)

 //      // this is because, if we save the delegations, the existing delegations on our parent rule will become

 //      // saved as "non current" before the rule is approved!!!

 //      save2(parentRule, null, false);

 //      //save2(parentRule, null, true);

 //      }

         // XXX: added when the RuleValidation stuff was added, basically we just need to get the RuleDelegation

         // that points to our delegate rule, this rule code is scary...

         RuleDelegation ruleDelegation = getRuleDelegation(parentRule, delegateRule);

         save2(delegateRule, ruleDelegation, true);

 //      if the parent rule is new, unsaved, then save it

         // It's important to save the parent rule after the delegate rule is saved, that way we can ensure that any new rule

         // delegations have a valid, saved, delegation rule to point to (otherwise we end up with a null constraint violation)

         boolean isRoutingParent = parentRule.getRuleBaseValuesId() == null;

         if (isRoutingParent) {

             // it's very important that we do not save delegations here (that's what the false parameter is for)

             // this is because, if we save the delegations, the existing delegations on our parent rule will become

             // saved as "non current" before the rule is approved!!!

             save2(parentRule, null, false);

             //save2(parentRule, null, true);

         }

         WorkflowDocument workflowDocument = null;

         if (routeHeaderId != null) {

             workflowDocument = new WorkflowDocument(new WorkflowIdDTO(principal.getPrincipalId()), routeHeaderId);

         } else {

             List rules = new ArrayList();

             rules.add(delegateRule);

             rules.add(parentRule);

             workflowDocument = new WorkflowDocument(new WorkflowIdDTO(principal.getPrincipalId()), getRuleDocmentTypeName(rules));

         }

         workflowDocument.setTitle(generateTitle(parentRule, delegateRule));

         delegateRule.setRouteHeaderId(workflowDocument.getRouteHeaderId());

         workflowDocument.addAttributeDefinition(new RuleRoutingDefinition(parentRule.getDocTypeName()));

         getRuleDAO().save(delegateRule);

         if (isRoutingParent) {

             parentRule.setRouteHeaderId(workflowDocument.getRouteHeaderId());

             getRuleDAO().save(parentRule);

         }

         if (blanketApprove) {

             workflowDocument.blanketApprove(annotation);

         } else {

             workflowDocument.routeDocument(annotation);

         }

         return workflowDocument.getRouteHeaderId();

     }

     /**

      * Gets the RuleDelegation object from the parentRule that points to the delegateRule.

      */

     private RuleDelegation getRuleDelegation(RuleBaseValues parentRule, RuleBaseValues delegateRule) throws Exception {

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

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

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

                 RuleDelegation ruleDelegation = (RuleDelegation) respIt.next();

                 // they should be the same object in memory

                 if (ruleDelegation.getDelegationRuleBaseValues().equals(delegateRule)) {

                     return ruleDelegation;

                 }

             }

         }

         return null;

     }

     private String generateTitle(RuleBaseValues parentRule, RuleBaseValues delegateRule) {

         StringBuffer title = new StringBuffer();

         if (delegateRule.getPreviousVersionId() != null) {

             title.append("Editing Delegation Rule '").append(delegateRule.getDescription()).append("' on '");

         } else {

             title.append("Adding Delegation Rule '").append(delegateRule.getDescription()).append("' to '");

         }

         title.append(parentRule.getDescription()).append("'");

         return title.toString();

     }

     private String generateTitle(MyRules2 myRules) {

         StringBuffer title = new StringBuffer();

         RuleBaseValues firstRule = myRules.getRule(0);

         if (myRules.getRules().size() > 1) {

             title.append("Routing ").append(myRules.getSize()).append(" Rules, '");

             title.append(firstRule.getDescription()).append("',...");

         } else if (firstRule.getPreviousVersionId() != null) {

             title.append("Editing Rule '").append(firstRule.getDescription()).append("'");

         } else {

             title.append("Adding Rule '").append(firstRule.getDescription()).append("'");

         }

         return title.toString();

     }

     public void validate(RuleBaseValues ruleBaseValues, List errors) {

         if (errors == null) {

             errors = new ArrayList();

         }

         if (getDocumentTypeService().findByName(ruleBaseValues.getDocTypeName()) == null) {

             errors.add(new WorkflowServiceErrorImpl("Document Type Invalid", "doctype.documenttypeservice.doctypename.required"));

         }

         if (ruleBaseValues.getToDate().before(ruleBaseValues.getFromDate())) {

             errors.add(new WorkflowServiceErrorImpl("From Date is later than to date", "routetemplate.ruleservice.daterange.fromafterto"));

         }

         if (ruleBaseValues.getActiveInd() == null) {

             errors.add(new WorkflowServiceErrorImpl("Active Indicator is required", "routetemplate.ruleservice.activeind.required"));

         }

         if (ruleBaseValues.getDescription() == null || ruleBaseValues.getDescription().equals("")) {

             errors.add(new WorkflowServiceErrorImpl("Description is required", "routetemplate.ruleservice.description.required"));

         }

         if (ruleBaseValues.getForceAction() == null) {

             errors.add(new WorkflowServiceErrorImpl("Force Action is required", "routetemplate.ruleservice.forceAction.required"));

         }

         if (ruleBaseValues.getResponsibilities().isEmpty()) {

             errors.add(new WorkflowServiceErrorImpl("A responsibility is required", "routetemplate.ruleservice.responsibility.required"));

         } else {

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

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

                 if (responsibility.getRuleResponsibilityName() != null && KEWConstants.RULE_RESPONSIBILITY_GROUP_ID.equals(responsibility.getRuleResponsibilityType())) {

                     if (getIdentityManagementService().getGroup(responsibility.getRuleResponsibilityName()) == null) {

                         errors.add(new WorkflowServiceErrorImpl("Workgroup is invalid", "routetemplate.ruleservice.workgroup.invalid"));

                     }

                 } else if (responsibility.getPrincipal() == null && responsibility.getRole() == null) {

                     errors.add(new WorkflowServiceErrorImpl("User is invalid", "routetemplate.ruleservice.user.invalid"));

                 }

             }

         }

         if (!errors.isEmpty()) {

             throw new WorkflowServiceErrorException("RuleBaseValues validation errors", errors);

         }

     }

     public void validate2(RuleBaseValues ruleBaseValues, RuleDelegation ruleDelegation, List errors) {

         if (errors == null) {

             errors = new ArrayList();

         }

         if (getDocumentTypeService().findByName(ruleBaseValues.getDocTypeName()) == null) {

             errors.add(new WorkflowServiceErrorImpl("Document Type Invalid", "doctype.documenttypeservice.doctypename.required"));

             LOG.error("Document Type Invalid");

         }

         if (ruleBaseValues.getToDate() == null) {

             try {

                 ruleBaseValues.setToDate(new Timestamp(RiceConstants.getDefaultDateFormat().parse("01/01/2100").getTime()));

             } catch (ParseException e) {

                 LOG.error("Error date-parsing default date");

                 throw new WorkflowServiceErrorException("Error parsing default date.", e);

             }

         }

         if (ruleBaseValues.getFromDate() == null) {

             ruleBaseValues.setFromDate(new Timestamp(System.currentTimeMillis()));

         }

         if (ruleBaseValues.getToDate().before(ruleBaseValues.getFromDate())) {

             errors.add(new WorkflowServiceErrorImpl("From Date is later than to date", "routetemplate.ruleservice.daterange.fromafterto"));

             LOG.error("From Date is later than to date");

         }

         if (ruleBaseValues.getActiveInd() == null) {

             errors.add(new WorkflowServiceErrorImpl("Active Indicator is required", "routetemplate.ruleservice.activeind.required"));

             LOG.error("Active Indicator is missing");

         }

         if (ruleBaseValues.getDescription() == null || ruleBaseValues.getDescription().equals("")) {

             errors.add(new WorkflowServiceErrorImpl("Description is required", "routetemplate.ruleservice.description.required"));

             LOG.error("Description is missing");

         }

         if (ruleBaseValues.getForceAction() == null) {

             errors.add(new WorkflowServiceErrorImpl("Force Action is required", "routetemplate.ruleservice.forceAction.required"));

             LOG.error("Force Action is missing");

         }

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

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

             if (responsibility.getRuleResponsibilityName() != null && KEWConstants.RULE_RESPONSIBILITY_GROUP_ID.equals(responsibility.getRuleResponsibilityType())) {

                 if (getIdentityManagementService().getGroup(responsibility.getRuleResponsibilityName()) == null) {

                     errors.add(new WorkflowServiceErrorImpl("Workgroup is invalid", "routetemplate.ruleservice.workgroup.invalid"));

                     LOG.error("Workgroup is invalid");

                 }

             } else if (responsibility.getPrincipal() == null && responsibility.getRole() == null) {

                 errors.add(new WorkflowServiceErrorImpl("User is invalid", "routetemplate.ruleservice.user.invalid"));

                 LOG.error("User is invalid");

             } else if (responsibility.isUsingRole()) {

                 if (responsibility.getApprovePolicy() == null || !(responsibility.getApprovePolicy().equals(KEWConstants.APPROVE_POLICY_ALL_APPROVE) || responsibility.getApprovePolicy().equals(KEWConstants.APPROVE_POLICY_FIRST_APPROVE))) {

                     errors.add(new WorkflowServiceErrorImpl("Approve Policy is Invalid", "routetemplate.ruleservice.approve.policy.invalid"));

                     LOG.error("Approve Policy is Invalid");

                 }

             }

         }

         if (ruleBaseValues.getRuleTemplate() != null) {

             for (Iterator iter = ruleBaseValues.getRuleTemplate().getActiveRuleTemplateAttributes().iterator(); iter.hasNext();) {

                 RuleTemplateAttribute templateAttribute = (RuleTemplateAttribute) iter.next();

                 if (!templateAttribute.isRuleValidationAttribute()) {

                     continue;

                 }

                 RuleValidationAttribute attribute = templateAttribute.getRuleValidationAttribute();

                 UserSession userSession = UserSession.getAuthenticatedUser();

                 try {

                     RuleValidationContext validationContext = new RuleValidationContext(ruleBaseValues, ruleDelegation, userSession);

                     ValidationResults results = attribute.validate(validationContext);

                     if (results != null && !results.getValidationResults().isEmpty()) {

                         errors.add(results);

                     }

                 } catch (Exception e) {

                     if (e instanceof RuntimeException) {

                         throw (RuntimeException)e;

                     }

                     throw new RuntimeException("Problem validation rule.", e);

                 }

             }

         }

         if (ruleBaseValues.getRuleExpressionDef() != null) {

             // rule expressions do not require parse-/save-time validation

         }

         if (!errors.isEmpty()) {

             throw new WorkflowServiceErrorException("RuleBaseValues validation errors", errors);

         }

     }

     public List findByRouteHeaderId(Long routeHeaderId) {

         return getRuleDAO().findByRouteHeaderId(routeHeaderId);

     }

     public List search(String docTypeName, Long ruleId, Long ruleTemplateId, String ruleDescription, String groupId, String principalId,

             Boolean delegateRule, Boolean activeInd, Map extensionValues, String workflowIdDirective) {

         return getRuleDAO().search(docTypeName, ruleId, ruleTemplateId, ruleDescription, groupId, principalId, delegateRule,

                 activeInd, extensionValues, workflowIdDirective);

     }

     public List search(String docTypeName, String ruleTemplateName, String ruleDescription, String groupId, String principalId,

             Boolean workgroupMember, Boolean delegateRule, Boolean activeInd, Map extensionValues, Collection<String> actionRequestCodes) {

         if ( (StringUtils.isEmpty(docTypeName)) &&

                 (StringUtils.isEmpty(ruleTemplateName)) &&

                 (StringUtils.isEmpty(ruleDescription)) &&

                 (StringUtils.isEmpty(groupId)) &&

                 (StringUtils.isEmpty(principalId)) &&

                 (extensionValues.isEmpty()) &&

                 (actionRequestCodes.isEmpty()) ) {

             // all fields are empty

             throw new IllegalArgumentException("At least one criterion must be sent");

         }

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

         Long ruleTemplateId = null;

         if (ruleTemplate != null) {

             ruleTemplateId = ruleTemplate.getRuleTemplateId();

         }

         if ( ( (extensionValues != null) && (!extensionValues.isEmpty()) ) &&

                 (ruleTemplateId == null) ) {

             // cannot have extensions without a correct template

             throw new IllegalArgumentException("A Rule Template Name must be given if using Rule Extension values");

         }

         Collection<String> workgroupIds = new ArrayList<String>();

         if (principalId != null) {

             KEWServiceLocator.getIdentityHelperService().validatePrincipalId(principalId);

             if ( (workgroupMember == null) || (workgroupMember.booleanValue()) ) {

                         workgroupIds = getIdentityManagementService().getGroupIdsForPrincipal(principalId);

                 } else {

                         // user was passed but workgroups should not be parsed... do nothing

                 }

         } else if (groupId != null) {

                 Group group = KEWServiceLocator.getIdentityHelperService().getGroup(groupId);

                 if (group == null) {

                         throw new IllegalArgumentException("Group does not exist in for given group id: " + groupId);

                 } else  {

                         workgroupIds.add(group.getGroupId());

                 }

         }

         return getRuleDAO().search(docTypeName, ruleTemplateId, ruleDescription, workgroupIds, principalId,

                 delegateRule,activeInd, extensionValues, actionRequestCodes);

     }

     public void delete(Long ruleBaseValuesId) {

         getRuleDAO().delete(ruleBaseValuesId);

     }

     public RuleBaseValues findRuleBaseValuesById(Long ruleBaseValuesId) {

         return getRuleDAO().findRuleBaseValuesById(ruleBaseValuesId);

     }

     public RuleResponsibility findRuleResponsibility(Long responsibilityId) {

         return getRuleDAO().findRuleResponsibility(responsibilityId);

     }

     public List fetchAllCurrentRulesForTemplateDocCombination(String ruleTemplateName, String documentType, boolean ignoreCache) {

         PerformanceLogger performanceLogger = new PerformanceLogger();

         Boolean cachingRules = Boolean.valueOf(Utilities.getKNSParameterBooleanValue(KEWConstants.KEW_NAMESPACE, KNSConstants.DetailTypes.RULE_DETAIL_TYPE, USING_RULE_CACHE_IND));

         if (cachingRules.booleanValue()) {

             //Cache cache = SpringServiceLocator.getCache();

             List<RuleBaseValues> rules = getListFromCache(ruleTemplateName, documentType);

             if (rules != null && !ignoreCache) {

                 performanceLogger.log("Time to fetchRules by template " + ruleTemplateName + " cached.");

                 return rules;

             }

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

             if (ruleTemplate == null) {

                 return Collections.EMPTY_LIST;

             }

             Long ruleTemplateId = ruleTemplate.getRuleTemplateId();

             //RuleListCache translatedRules = new RuleListCache();

             //translatedRules.setId(getRuleCacheKey(ruleTemplateName, documentType));

             rules = getRuleDAO().fetchAllCurrentRulesForTemplateDocCombination(ruleTemplateId, getDocGroupAndTypeList(documentType));

             //translatedRules.addAll(rules);

             putListInCache(ruleTemplateName, documentType, rules);

             //cache.add(RULE_CACHE_NAME, translatedRules);

             performanceLogger.log("Time to fetchRules by template " + ruleTemplateName + " cache refreshed.");

             return rules;

         } else {

             Long ruleTemplateId = getRuleTemplateService().findByRuleTemplateName(ruleTemplateName).getRuleTemplateId();

             performanceLogger.log("Time to fetchRules by template " + ruleTemplateName + " not caching.");

             return getRuleDAO().fetchAllCurrentRulesForTemplateDocCombination(ruleTemplateId, getDocGroupAndTypeList(documentType));

         }

     }

     public List fetchAllCurrentRulesForTemplateDocCombination(String ruleTemplateName, String documentType) {

         return fetchAllCurrentRulesForTemplateDocCombination(ruleTemplateName, documentType, false);

     }

     public List fetchAllCurrentRulesForTemplateDocCombination(String ruleTemplateName, String documentType, Timestamp effectiveDate){

         Long ruleTemplateId = getRuleTemplateService().findByRuleTemplateName(ruleTemplateName).getRuleTemplateId();

         PerformanceLogger performanceLogger = new PerformanceLogger();

         performanceLogger.log("Time to fetchRules by template " + ruleTemplateName + " not caching.");

         return getRuleDAO().fetchAllCurrentRulesForTemplateDocCombination(ruleTemplateId, getDocGroupAndTypeList(documentType), effectiveDate);

     }

     public List fetchAllRules(boolean currentRules) {

         return getRuleDAO().fetchAllRules(currentRules);

     }

     private List getDocGroupAndTypeList(String documentType) {

         List docTypeList = new ArrayList();

         DocumentTypeService docTypeService = (DocumentTypeService) KEWServiceLocator.getService(KEWServiceLocator.DOCUMENT_TYPE_SERVICE);

         DocumentType docType = docTypeService.findByName(documentType);

         while (docType != null) {

             docTypeList.add(docType.getName());

             docType = docType.getParentDocType();

         }

         return docTypeList;

     }

     private Integer getNextVersionNumber(RuleBaseValues currentRule) {

         List candidates = new ArrayList();

         candidates.add(currentRule.getVersionNbr());

         List pendingRules = ruleDAO.findByPreviousVersionId(currentRule.getRuleBaseValuesId());

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

             RuleBaseValues pendingRule = (RuleBaseValues) iterator.next();

             candidates.add(pendingRule.getVersionNbr());

         }

         Collections.sort(candidates);

         Integer maxVersionNumber = (Integer) candidates.get(candidates.size() - 1);

         if (maxVersionNumber == null) {

             return Integer.valueOf(0);

         }

         return Integer.valueOf(maxVersionNumber.intValue() + 1);

     }

     /**

      * Determines if the given rule is locked for routing.

      *

      * In the case of a root rule edit, this method will take the rule id of the rule being edited.

      *

      * In the case of a new delegate rule or a delegate rule edit, this method will take the id of it's parent.

      */

     public Long isLockedForRouting(Long currentRuleBaseValuesId) {

         // checks for any other versions of the given rule, essentially, if this is a rule edit we want to see how many other

         // pending edits are out there

         List pendingRules = ruleDAO.findByPreviousVersionId(currentRuleBaseValuesId);

         boolean isDead = true;

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

             RuleBaseValues pendingRule = (RuleBaseValues) iterator.next();

             if (pendingRule.getRouteHeaderId() != null && pendingRule.getRouteHeaderId().longValue() != 0) {

                 DocumentRouteHeaderValue routeHeader = getRouteHeaderService().getRouteHeader(pendingRule.getRouteHeaderId());

                 // the pending edit is considered dead if it's been disapproved or cancelled and we are allowed to proceed with our own edit

                 isDead = routeHeader.isDisaproved() || routeHeader.isCanceled();

                 if (!isDead) {

                     return pendingRule.getRouteHeaderId();

                 }

             }

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

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

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

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

                     List pendingDelegateRules = ruleDAO.findByPreviousVersionId(delegation.getDelegationRuleBaseValues().getRuleBaseValuesId());

                     for (Iterator iterator3 = pendingDelegateRules.iterator(); iterator3.hasNext();) {

                         RuleBaseValues pendingDelegateRule = (RuleBaseValues) iterator3.next();

                         if (pendingDelegateRule.getRouteHeaderId() != null && pendingDelegateRule.getRouteHeaderId().longValue() != 0) {

                             DocumentRouteHeaderValue routeHeader = getRouteHeaderService().getRouteHeader(pendingDelegateRule.getRouteHeaderId());

                             isDead = routeHeader.isDisaproved() || routeHeader.isCanceled();

                             if (!isDead) {

                                 return pendingDelegateRule.getRouteHeaderId();

                             }

                         }

                     }

                 }

             }

         }

         return null;

     }

     public RuleBaseValues getParentRule(RuleBaseValues rule) {

         if (rule == null || rule.getRuleBaseValuesId() == null) {

             throw new IllegalArgumentException("Rule must be non-null with non-null id: " + rule);

         }

         if (!Boolean.TRUE.equals(rule.getDelegateRule())) {

             return null;

         }

         return getRuleDAO().getParentRule(rule.getRuleBaseValuesId());

     }

     /**

      * This configuration is currently stored in a system parameter named "CUSTOM_DOCUMENT_TYPES ",

      * long term we should come up with a better solution.  The format of this constant is a comma-separated

      * list of entries of the following form:

      *

      * <<name of doc type on rule>>:<<rule template name on rule>>:<<type of rule>>:<<name of document type to use for rule routing>>

      *

      * Rule type indicates either main or delegation rules.  A main rule is indicated by the character 'M' and a

      * delegate rule is indicated by the character 'D'.

      *

      * So, if you wanted to route "main" rules made for the "MyDocType" document with the rule template name

      * "MyRuleTemplate" using the "MyMainRuleDocType" doc type, it would be specified as follows:

      *

      * MyDocType:MyRuleTemplate:M:MyMainRuleDocType

      *

      * If you also wanted to route "delegate" rules made for the "MyDocType" document with rule template name

      * "MyDelegateTemplate" using the "MyDelegateRuleDocType", you would then set the constant as follows:

      *

      * MyDocType:MyRuleTemplate:M:MyMainRuleDocType,MyDocType:MyDelegateTemplate:D:MyDelegateRuleDocType

      *

      * TODO this method ended up being a mess, we should get rid of this as soon as we can

      */

     public String getRuleDocmentTypeName(List rules) {

         if (rules.size() == 0) {

             throw new IllegalArgumentException("Cannot determine rule DocumentType for an empty list of rules.");

         }

         String ruleDocTypeName = null;

         RuleRoutingConfig config = RuleRoutingConfig.parse();

         // There are 2 cases here

         RuleBaseValues firstRule = (RuleBaseValues)rules.get(0);

         if (Boolean.TRUE.equals(firstRule.getDelegateRule())) {

             // if it's a delegate rule then the list will contain only 2 elements, the first is the delegate rule,

             // the second is the parent rule.  In this case just look at the custom routing process for the delegate rule.

             ruleDocTypeName = config.getDocumentTypeName(firstRule);

         } else {

             // if this is a list of parent rules being routed, look at all configued routing types and verify that they are

             // all the same, if not throw an exception

             String parentRulesDocTypeName = null;

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

                 RuleBaseValues rule = (RuleBaseValues) iterator.next();

                 // if it's a delegate rule just skip it

                 if  (Boolean.TRUE.equals(rule.getDelegateRule())) {

                     continue;

                 }

                 String currentDocTypeName = config.getDocumentTypeName(rule);

                 if (parentRulesDocTypeName == null) {

                     parentRulesDocTypeName = currentDocTypeName;

                 } else {

                     if (!Utilities.equals(currentDocTypeName, parentRulesDocTypeName)) {

                         throw new RuntimeException("There are multiple rules being routed and they have different document type definitions!  " + parentRulesDocTypeName + " and " + currentDocTypeName);

                     }

                 }

             }

             ruleDocTypeName = parentRulesDocTypeName;

         }

         if (ruleDocTypeName == null) {