private List<Object> applyRules(
List<Object> treeObjects, Element newChildElementData, Element scopeElement)
throws Exception {
List<Rule> rules =
ruleRepository.getRuleBywatchObjectAndWatchCategoryAndWatchSubType(
Element.class.toString(), scopeElement.getCategory(), scopeElement.getSubType());
for (Object o : treeObjects) {
if (o instanceof Element && ((Element) o).getId().equals(scopeElement.getId())) {
rootElement = (Element) o;
}
}
for (Rule rule : rules) {
System.out.println("Applying Rule :" + rule.getRuleName());
KnowledgeBase kbase = createKnowledgeBase(rule.getRuleFile(), rule.getRuleFileType());
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
StringTokenizer st = new StringTokenizer(rule.getRuleTriggerFact(), "|");
String triggerFactPackage = st.nextToken();
String triggerFactName = st.nextToken();
FactType triggerFact = kbase.getFactType(triggerFactPackage, triggerFactName);
Object triggerFactInstance = triggerFact.newInstance();
if (rule.getRuleTriggerFactParams() != null) {
triggerFactInstance =
setTriggerFactInstanceParams(
triggerFact, triggerFactInstance, rule.getRuleTriggerFactParams());
}
if (rule.getRuleParams() != null) {
ksession = setSessionVariables(ksession, rule.getRuleParams());
}
ksession.insert(triggerFactInstance);
ksession.insert(rootElement);
ksession.fireAllRules();
ksession.dispose();
}
return treeObjects;
}
public List<Element> getUniqueElementList(List<Element> ListA, List<Element> ListB) {
for (Element eA : ListA) {
Boolean found = false;
for (Element eB : ListB) {
if (eA.getId().equals(eB.getId())) {
found = true;
break;
}
}
if (!found) {
ListB.add(eA);
}
}
return ListB;
}
@Override
public EbuildleapResultObject createNewRevision(
HomeUnitRevision currentHomeUnitRevision,
Element newChildElement,
ElementManifest currentElementManifest,
Element scopeElement) {
try {
ero.clear();
/*
* validate user input
*/
if (currentHomeUnitRevision == null || currentHomeUnitRevision.getId() == null) {
// throw exception
throw new Exception(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.MISSING_HOMEUNITREVISION_ID));
}
if (newChildElement == null || newChildElement.getId() == null) {
// throw exception
throw new Exception(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.MISSING_ELEMENT_ID));
}
if (currentElementManifest == null || currentElementManifest.getId() == null) {
// throw exception
throw new Exception(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.MISSING_ELEMENTMANIFEST_ID));
}
if (scopeElement == null || scopeElement.getId() == null) {
// throw exception
throw new Exception(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.MISSING_ELEMENT_ID));
}
/*
* STEP 1:- Create new HomeUnitRevision in RDBMS and retrieve new
* HomeUnitRevision ID
*/
HomeUnitRevision currentHomeUnitRevisionData =
homeUnitRevisionRepository.findOne(currentHomeUnitRevision.getId());
if (currentHomeUnitRevisionData == null) {
// Throw exception
throw new DataRetrievalFailureException(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.OBJECT_NOT_FOUND_IN_DATASTORE)
+ " - "
+ currentHomeUnitRevision.getId());
}
newChildElementData = elementRepository.findOne(newChildElement.getId());
if (newChildElementData == null) {
// Throw exception - childElement not found in RDBMS
throw new DataRetrievalFailureException(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.OBJECT_NOT_FOUND_IN_DATASTORE)
+ " - "
+ newChildElement.getId());
} else if (elementMongoRepository.exists(newChildElementData.getId())) {
newChildElementData = elementMongoRepository.findOne(newChildElementData.getId());
}
Element scopeElementData = elementRepository.findOne(scopeElement.getId());
if (scopeElementData == null) {
throw new DataRetrievalFailureException(
ebuildLeapPropertiesUtil.getProperty(EbuildleapConstants.OBJECT_NOT_FOUND_IN_DATASTORE)
+ " - "
+ scopeElement.getId());
}
HomeUnitVersion homeUnitVersion = currentHomeUnitRevisionData.getHomeUnitVersion();
HomeUnitRevision newRevision = new HomeUnitRevision();
newRevision.setHomeUnitVersion(homeUnitVersion);
newRevision.setRevisionNumber(currentHomeUnitRevisionData.getRevisionNumber() + 1);
newRevision.setRevisionTag(
EbuildleapConstants.AUTO_NEW_HOMEUNIT_REVISIONTAG + homeUnitVersion.getVersionTag());
newRevision = homeUnitRevisionRepository.saveAndFlush(newRevision);
/*
* STEP 2:- Retrieve old HomeUnitRevision from NOSQL DB
*/
HomeUnitRevision newMongoHomeUnitRevision =
homeUnitRevisionMongoRepository.findOne(currentHomeUnitRevisionData.getId());
/*
* STEP 3:- Change the HomeUnitRevisionID and other relevant
* properties of the HomeUnitRevision retrieved from NOSQL DB
*/
newMongoHomeUnitRevision.setId(newRevision.getId());
newMongoHomeUnitRevision.setRevisionTag(newRevision.getRevisionTag());
newMongoHomeUnitRevision.setRevisionNumber(newRevision.getRevisionNumber());
/*
* Get the flattened list of tree containing elements connected by
* elementmanifest
*/
KnowledgeBase kbase = (KnowledgeBase) flattenTreeRulesKnowledge.getObject();
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
List<Object> treeObjects = new ArrayList<Object>();
ksession.setGlobal("treeObjects", treeObjects);
ksession.insert(
newMongoHomeUnitRevision.getHomeUnitVersion().getHomeUnit().getProduct().getElement());
ksession.fireAllRules();
ksession.dispose();
/*
* Loop thru flattened tree containing elements and elementmanifest.
* Modify the elementmanifest by replacing old childelement with new
* child element (**Explore the possibility of using lambdaj**)
*/
for (Object o : treeObjects) {
if (o instanceof ElementManifest
&& ((ElementManifest) o).getId().equals(currentElementManifest.getId())) {
((ElementManifest) o).setChildElement(newChildElementData);
}
}
/*
* APPLY RULES
*/
treeObjects = applyRules(treeObjects, newChildElementData, scopeElementData);
/*
* Save New Revision to Mongo Repository
*/
newMongoHomeUnitRevision = homeUnitRevisionMongoRepository.save(newMongoHomeUnitRevision);
ArrayList<HomeUnitRevision> result = new ArrayList<HomeUnitRevision>();
result.add(newMongoHomeUnitRevision);
ero.setResultStatus(EbuildleapConstants.SERVICE_CALL_SUCCESSFUL);
ero.setResult(result);
} catch (Exception e) {
log.debug(e.getClass() + ": " + e.getMessage(), e);
e.printStackTrace();
ero.setResultStatus(EbuildleapConstants.SERVICE_CALL_FAILED);
ero.setErrCode(EbuildleapConstants.ERROR_CREATING_NEW_HOMEUNITREVISION);
ero.setErrDescription(
ebuildLeapPropertiesUtil.getProperty(
EbuildleapConstants.ERROR_CREATING_NEW_HOMEUNITREVISION)
+ " - "
+ e.getClass()
+ ": "
+ e.getMessage());
}
return ero;
}