[jboss-jira] [JBoss JIRA] (DROOLS-3328) PhreakAsyncSendNode triggers service discovery even when it's not used
Edoardo Vacchi created DROOLS-3328:
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Summary: PhreakAsyncSendNode triggers service discovery even when it's
not used
Key: DROOLS-3328
URL: https://issues.jboss.org/browse/DROOLS-3328
Project: Drools
Issue Type: Enhancement
Reporter: Edoardo Vacchi
Assignee: Edoardo Vacchi
I am investigating ways to startup a stripped down version of the rule engine.
in 7.8.0 the following snippet did _not_ trigger service discovery :
{code}
CanonicalKiePackages packages = new MyKiePackagesBuilder(model,
ProjectClassLoader.createProjectClassLoader()).build();
InternalKnowledgeBase kBase = new KnowledgeBaseImpl("defaultname",
null);
kBase.addPackages(packages.getKiePackages());
kieSession = kBase.newKieSession();
{code}
this is because no call to {{ExecutorProviderFactory.getExecutorProvider()}} occurs
anywhere. However in a recent release, {{PhreakAsyncSendNode}} invokes this method, while
initializing a static field
{code}
private static final Executor executor =
ExecutorProviderFactory.getExecutorProvider().getExecutor();
{code}
This triggers a *full service discovery* which loads a bunch of other unrelated services.
Solution: avoid service discovery in that class, or delegate to a method (the service
utility caches that field anyway, so it's not necessary to set a static field there)
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