public Void execute(Context context) {
em.joinTransaction();
em.persist(mainObject);
if (subObject != null) {
KieSession ksession = ((KnowledgeCommandContext) context).getKieSession();
// THe following 3 lines are the important ones! (See below for an explanation)
KnowledgeBase cleanKBase = KnowledgeBaseFactory.newKnowledgeBase();
cleanKBase.addKnowledgePackages(
((KnowledgeBase) ksession.getKieBase()).getKnowledgePackages());
StatefulKnowledgeSession commandKSession =
JPAKnowledgeService.newStatefulKnowledgeSession(
cleanKBase, null, initializeEnvironment());
/**
* Here's what's going on: If the SingleSessionCommandService (SSCS) & JtaTransactionManager
* (JTM) were _not_ aware of transactions, -> then inserting the mainObject _before_ having
* inserted the subObject would cause the operation/persist to fail and the transaction to
* fail. - This is because the mainObject contains a foreign key referring to the subObject.
*
* <p>However, the SSCS & JTM check whether or not they're owners of the transaction when
* starting and when committing the transaction they use. -> So that when we insert the
* mainObject here (via a _new_ CommandBasedStatefulKnowledgeSession), it does _not_ mess with
* the transaction state and the operation succeeds.
*/
TransactionTestCommand transactionTestSubCommand =
new TransactionTestCommand(this.subObject, getPersistenceEnvironment());
commandKSession.execute(transactionTestSubCommand);
}
return null;
}
@Test
public void testHelloWorldWithPackages() throws Exception {
String drl1 =
"package org.drools\n"
+ "rule R1 when\n"
+ " $m : Message( message == \"Hello World\" )\n"
+ "then\n"
+ "end\n";
String drl2 =
"package org.drools\n"
+ "rule R2 when\n"
+ " $m : Message( message == \"Hello World\" )\n"
+ "then\n"
+ "end\n";
KieServices ks = KieServices.Factory.get();
ReleaseId releaseId = ks.newReleaseId("org.kie", "hello-world", "1.0-SNAPSHOT");
KieFileSystem kfs =
ks.newKieFileSystem()
.generateAndWritePomXML(releaseId)
.write("src/main/resources/KBase1/org/pkg1/r1.drl", drl1)
.write("src/main/resources/KBase1/org/pkg2/r2.drl", drl2)
.writeKModuleXML(createKieProjectWithPackages(ks, "org.pkg1").toXML());
ks.newKieBuilder(kfs).buildAll();
KieSession ksession = ks.newKieContainer(releaseId).newKieSession("KSession1");
ksession.insert(new Message("Hello World"));
int count = ksession.fireAllRules();
assertEquals(1, count);
}
@Test
public void testHelloWorldWithEmptyFile() throws Exception {
String drl =
"package org.drools\n"
+ "rule R1 when\n"
+ " $m : Message( message == \"Hello World\" )\n"
+ "then\n"
+ "end\n";
KieServices ks = KieServices.Factory.get();
KieFileSystem kfs =
ks.newKieFileSystem()
.write("src/main/resources/r1.drl", drl)
.write(
"src/main/resources/empty.drl",
ks.getResources().newInputStreamResource(new ByteArrayInputStream(new byte[0])));
ks.newKieBuilder(kfs).buildAll();
KieSession ksession =
ks.newKieContainer(ks.getRepository().getDefaultReleaseId()).newKieSession();
ksession.insert(new Message("Hello World"));
int count = ksession.fireAllRules();
assertEquals(1, count);
}
@Override
public void setProcessVariable(long processInstanceId, String variableId, Object value) {
ProcessInstanceDesc piDesc = dataService.getProcessInstanceById(processInstanceId);
KieSession ksession = domainService.getSessionById(piDesc.getSessionId());
ProcessInstance processInstance = ksession.getProcessInstance(processInstanceId);
((WorkflowProcessInstance) processInstance).setVariable(variableId, value);
}
private void checkKSession(KieSession ksession, Object... results) {
List<String> list = new ArrayList<String>();
ksession.setGlobal("list", list);
ksession.fireAllRules();
ksession.dispose();
assertEquals(results.length, list.size());
for (Object result : results) {
assertTrue(list.contains(result));
}
}
public void go(PrintStream out) {
KieServices ks = KieServices.Factory.get();
KieRepository kr = ks.getRepository();
KieModule kModule =
kr.addKieModule(ks.getResources().newFileSystemResource(getFile("named-kiesession")));
KieContainer kContainer = ks.newKieContainer(kModule.getReleaseId());
KieSession kSession = kContainer.newKieSession("ksession1");
kSession.setGlobal("out", out);
Object msg1 = createMessage(kContainer, "Dave", "Hello, HAL. Do you read me, HAL?");
kSession.insert(msg1);
kSession.fireAllRules();
}
@Override
public Collection<String> getAvailableSignals(String businessKey, long processInstanceId) {
ProcessInstanceDesc piDesc = dataService.getProcessInstanceById(processInstanceId);
KieSession ksession = domainService.getSessionById(piDesc.getSessionId());
ProcessInstance processInstance = ksession.getProcessInstance(processInstanceId);
Collection<String> activeSignals = new ArrayList<String>();
if (processInstance != null) {
((ProcessInstanceImpl) processInstance)
.setProcess(ksession.getKieBase().getProcess(processInstance.getProcessId()));
Collection<NodeInstance> activeNodes =
((WorkflowProcessInstance) processInstance).getNodeInstances();
activeSignals.addAll(ProcessInstanceHelper.collectActiveSignals(activeNodes));
}
return activeSignals;
}
public void initStartDisposeAndLoadSession() {
try {
EntityManager em = txm.getEntityManagerFactory().createEntityManager();
// create new ksession with kstore
KieSession ksession = kstore.newKieSession(kbase, null, getEnvironment());
sessionId = ksession.getId();
logger.info("\n\tSession id: " + sessionId + "\n");
ksession.getWorkItemManager().registerWorkItemHandler("testWorkItemHandler", workItemHandler);
ksession.startProcess("timer-flow", null);
Thread.sleep(4000);
ksession.dispose();
} catch (Exception ex) {
throw new IllegalStateException("The endTheProcess method has been interrupted", ex);
}
}
public void endTheProcess() {
try {
KieSession ksession = kstore.loadKieSession(sessionId, kbase, null, getEnvironment());
// Sleep to check if the timer continues executing.
logger.info("\n\nSleeping to check that the timer is still running");
Thread.sleep(5000);
ksession
.getWorkItemManager()
.completeWorkItem(TestWorkItemHandler.getWorkItem().getId(), null);
logger.info("\n\nSleeping to check that the timer is no longer running");
Thread.sleep(3000);
logger.info("Ok");
ksession.dispose();
} catch (InterruptedException ex) {
throw new IllegalStateException("The endTheProcess method has been interrupted", ex);
}
}
public Object execute(Context context) {
KieSession ksession = ((KnowledgeCommandContext) context).getKieSession();
ksession.getEntryPoint(handle.getEntryPointId()).retract(handle);
return null;
}
public Void execute(Context context) {
KieSession ksession = ((KnowledgeCommandContext) context).getKieSession();
ksession.getWorkItemManager().abortWorkItem(workItemId);
return null;
}
@Test
public void testHelloWorldOnVersionRange() throws Exception {
KieServices ks = KieServices.Factory.get();
buildVersion(ks, "Hello World", "1.0");
buildVersion(ks, "Aloha Earth", "1.1");
buildVersion(ks, "Hi Universe", "1.2");
ReleaseId latestReleaseId = ks.newReleaseId("org.kie", "hello-world", "LATEST");
KieSession ksession = ks.newKieContainer(latestReleaseId).newKieSession("KSession1");
ksession.insert(new Message("Hello World"));
assertEquals(0, ksession.fireAllRules());
ksession = ks.newKieContainer(latestReleaseId).newKieSession("KSession1");
ksession.insert(new Message("Hi Universe"));
assertEquals(1, ksession.fireAllRules());
ReleaseId releaseId1 = ks.newReleaseId("org.kie", "hello-world", "1.0");
ksession = ks.newKieContainer(releaseId1).newKieSession("KSession1");
ksession.insert(new Message("Hello World"));
assertEquals(1, ksession.fireAllRules());
ksession = ks.newKieContainer(releaseId1).newKieSession("KSession1");
ksession.insert(new Message("Hi Universe"));
assertEquals(0, ksession.fireAllRules());
ReleaseId releaseId2 = ks.newReleaseId("org.kie", "hello-world", "[1.0,1.2)");
ksession = ks.newKieContainer(releaseId2).newKieSession("KSession1");
ksession.insert(new Message("Aloha Earth"));
assertEquals(1, ksession.fireAllRules());
ksession = ks.newKieContainer(releaseId2).newKieSession("KSession1");
ksession.insert(new Message("Hi Universe"));
assertEquals(0, ksession.fireAllRules());
}