Examples with StatefulKnowledgeSession org.kie.internal.runtime.StatefulKnowledgeSession used on opensource projects

Example 21 with StatefulKnowledgeSession

use of org.kie.internal.runtime.StatefulKnowledgeSession in project drools by kiegroup.

the class ObjectMarshallingStrategyStoreTest method testMultipleObjectMarshallingStrategiesOfTheSameClassWithDifferentNames.

@Test
public void testMultipleObjectMarshallingStrategiesOfTheSameClassWithDifferentNames() throws IOException, ClassNotFoundException {
    Environment env = EnvironmentFactory.newEnvironment();
    final Thing entityOne = new Thing(1, "Object 1");
    final Thing entityTwo = new Thing(2, "Object 2");
    Collection srcItems = new ArrayList();
    srcItems.add(entityOne);
    srcItems.add(entityTwo);
    ObjectMarshallingStrategy[] strats = new ObjectMarshallingStrategy[] { new IdentityPlaceholderResolverStrategy("entityOne", new ObjectMarshallingStrategyAcceptor() {

        @Override
        public boolean accept(Object object) {
            return entityOne.equals(object);
        }
    }, Collections.singletonMap(entityOne.id, (Object) entityOne)), new IdentityPlaceholderResolverStrategy("entityTwo", new ObjectMarshallingStrategyAcceptor() {

        @Override
        public boolean accept(Object object) {
            return entityTwo.equals(object);
        }
    }, Collections.singletonMap(entityTwo.id, (Object) entityTwo)) };
    env.set(EnvironmentName.OBJECT_MARSHALLING_STRATEGIES, strats);
    KieSessionConfiguration ksc = SessionConfiguration.newInstance();
    final KieBaseConfiguration kbconf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    kbconf.setOption(EventProcessingOption.STREAM);
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kbconf);
    KieSession ks = kbase.newKieSession(ksc, env);
    ks.insert(entityOne);
    ks.insert(entityTwo);
    ProtobufMarshaller marshaller = (ProtobufMarshaller) MarshallerFactory.newMarshaller(kbase, strats);
    // Serialize object
    final byte[] b1;
    {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        marshaller.marshall(bos, ks, System.currentTimeMillis());
        b1 = bos.toByteArray();
        bos.close();
    }
    // Deserialize object
    StatefulKnowledgeSession ksession2;
    {
        ByteArrayInputStream bais = new ByteArrayInputStream(b1);
        try {
            ksession2 = marshaller.unmarshall(bais, ks.getSessionConfiguration(), ks.getEnvironment());
            Collection items = ksession2.getFactHandles();
            Assert.assertTrue(items.size() == 2);
            for (Object item : items) {
                FactHandle factHandle = (FactHandle) item;
                Assert.assertTrue(srcItems.contains(((DefaultFactHandle) factHandle).getObject()));
            }
        } catch (RuntimeException npe) {
            // Here ocurrs the bug that shows that NamedObjectMarshallingStrategies are required.
            Assert.fail("This error only happens if identity ObjectMarshallingStrategy use old name");
        } finally {
            bais.close();
        }
    }
}