protected void initKsession(
Integer sessionId,
KnowledgeBase kbase,
KnowledgeSessionConfiguration conf,
PersistenceContext persistenceContext) {
if (!doRollback && this.ksession != null) {
return;
// nothing to initialise
}
this.doRollback = false;
try {
this.sessionInfo = persistenceContext.findSessionInfo(sessionId);
} catch (Exception e) {
throw new RuntimeException("Could not find session data for id " + sessionId, e);
}
if (sessionInfo == null) {
throw new RuntimeException("Could not find session data for id " + sessionId);
}
if (this.marshallingHelper == null) {
// this should only happen when this class is first constructed
this.marshallingHelper = new SessionMarshallingHelper(kbase, conf, env);
MarshallingConfigurationImpl config =
(MarshallingConfigurationImpl)
((DefaultMarshaller) this.marshallingHelper.getMarshaller())
.getMarshallingConfiguration();
config.setMarshallProcessInstances(false);
config.setMarshallWorkItems(false);
}
this.sessionInfo.setJPASessionMashallingHelper(this.marshallingHelper);
// if this.ksession is null, it'll create a new one, else it'll use the existing one
this.ksession = this.marshallingHelper.loadSnapshot(this.sessionInfo.getData(), this.ksession);
// update the session id to be the same as the session info id
((InternalKnowledgeRuntime) ksession).setId(this.sessionInfo.getId());
((InternalKnowledgeRuntime) this.ksession)
.setEndOperationListener(new EndOperationListenerImpl(this.sessionInfo));
if (this.kContext == null) {
// this should only happen when this class is first constructed
this.kContext = new FixedKnowledgeCommandContext(null, null, null, this.ksession, null);
}
this.commandService = new DefaultCommandService(kContext);
((AcceptsTimerJobFactoryManager) ((InternalKnowledgeRuntime) ksession).getTimerService())
.getTimerJobFactoryManager()
.setCommandService(this);
}
public SingleSessionCommandService(
KnowledgeBase kbase, KnowledgeSessionConfiguration conf, Environment env) {
if (conf == null) {
conf = new SessionConfiguration();
}
this.env = env;
checkEnvironment(this.env);
this.sessionInfo = new SessionInfo();
initTransactionManager(this.env);
// create session but bypass command service
this.ksession = kbase.newStatefulKnowledgeSession(conf, this.env);
this.kContext = new FixedKnowledgeCommandContext(null, null, null, this.ksession, null);
this.commandService = new DefaultCommandService(kContext);
((AcceptsTimerJobFactoryManager) ((InternalKnowledgeRuntime) ksession).getTimerService())
.getTimerJobFactoryManager()
.setCommandService(this);
this.marshallingHelper = new SessionMarshallingHelper(this.ksession, conf);
MarshallingConfigurationImpl config =
(MarshallingConfigurationImpl)
((DefaultMarshaller) this.marshallingHelper.getMarshaller())
.getMarshallingConfiguration();
config.setMarshallProcessInstances(false);
config.setMarshallWorkItems(false);
this.sessionInfo.setJPASessionMashallingHelper(this.marshallingHelper);
((InternalKnowledgeRuntime) this.ksession)
.setEndOperationListener(new EndOperationListenerImpl(this.sessionInfo));
// Use the App scoped EntityManager if the user has provided it, and it is open.
// - open the entity manager before the transaction begins.
PersistenceContext persistenceContext = jpm.getApplicationScopedPersistenceContext();
boolean transactionOwner = false;
try {
transactionOwner = txm.begin();
registerRollbackSync();
persistenceContext.joinTransaction();
persistenceContext.persist(this.sessionInfo);
txm.commit(transactionOwner);
} catch (RuntimeException re) {
rollbackTransaction(re, transactionOwner);
throw re;
} catch (Exception t1) {
rollbackTransaction(t1, transactionOwner);
throw new RuntimeException("Wrapped exception see cause", t1);
}
// update the session id to be the same as the session info id
((InternalKnowledgeRuntime) ksession).setId(this.sessionInfo.getId());
}
public void endOperation(InternalKnowledgeRuntime kruntime) {
this.info.setLastModificationDate(new Date(kruntime.getLastIdleTimestamp()));
}