Examples with KnowledgeBase org.drools.KnowledgeBase used on opensource projects

Example 16 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class NewCommonIntegrationPatternsTest method testSimpleDecisionWithRules.

@Test
public void testSimpleDecisionWithRules() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("new_common/scoring.drl"), ResourceType.DRL);
    kbuilder.add(new ClassPathResource("new_common/process-drl-decision.bpmn"), ResourceType.BPMN2);
    if (kbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : kbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
    // Uncomment to see all the logs
    KnowledgeRuntimeLoggerFactory.newConsoleLogger(ksession);
    Person person = new Person("Salaboy", 28);
    Map<String, Object> params = new HashMap<String, Object>();
    params.put("person", person);
    ProcessInstance processInstance = ksession.createProcessInstance("com.salaboy.process.SimpleDecision", params);
    ksession.insert(processInstance);
    ksession.insert(person);
    ksession.insert(new RatesToday(3, 5));
    assertEquals(processInstance.getState(), ProcessInstance.STATE_PENDING);
    ksession.startProcessInstance(processInstance.getId());
    // We need to fire all the rules in order to execute the activated rules
    ksession.fireAllRules();
    assertEquals(84, person.getScore());
    assertEquals(processInstance.getState(), ProcessInstance.STATE_COMPLETED);
}

Example 17 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class NewCommonIntegrationPatternsTest method testSimpleDecisionWithReactiveRules.

@Test
public void testSimpleDecisionWithReactiveRules() throws InterruptedException {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("new_common/scoring.drl"), ResourceType.DRL);
    kbuilder.add(new ClassPathResource("new_common/process-drl-decision.bpmn"), ResourceType.BPMN2);
    if (kbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : kbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    final StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
    // Uncomment to see all the logs
    KnowledgeRuntimeLoggerFactory.newConsoleLogger(ksession);
    new Thread(new Runnable() {

        public void run() {
            ksession.fireUntilHalt();
        }
    }).start();
    Person person = new Person("Salaboy", 28);
    Map<String, Object> params = new HashMap<String, Object>();
    params.put("person", person);
    ProcessInstance processInstance = ksession.createProcessInstance("com.salaboy.process.SimpleDecision", params);
    ksession.insert(processInstance);
    ksession.insert(person);
    ksession.insert(new RatesToday(3, 5));
    assertEquals(processInstance.getState(), ProcessInstance.STATE_PENDING);
    ksession.startProcessInstance(processInstance.getId());
    ksession.fireAllRules();
    // We need to wait a little because we are in reactive mode
    Thread.sleep(1000);
    assertEquals(84, person.getScore());
    assertEquals(processInstance.getState(), ProcessInstance.STATE_COMPLETED);
}

Example 18 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class TaskListJFrame method createSession.

// End of variables declaration//GEN-END:variables
private StatefulKnowledgeSession createSession() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    // Adds resources to the builder
    kbuilder.add(new ClassPathResource("rules/SimpleRulesAndTask.drl"), ResourceType.DRL);
    KnowledgeBuilderErrors errors = kbuilder.getErrors();
    // Checks for errors
    if (errors.size() > 0) {
        for (KnowledgeBuilderError error : errors) {
            System.out.println(error.getMessage());
        }
        throw new IllegalStateException("Error building kbase!");
    }
    // Creates a new kbase and add all the packages from the builder
    KnowledgeBaseConfiguration kbaseConf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    kbaseConf.setOption(EventProcessingOption.STREAM);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(kbaseConf);
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    StatefulKnowledgeSession myksession = kbase.newStatefulKnowledgeSession();
    HornetQHTWorkItemHandler hornetQHTWorkItemHandler = new HornetQHTWorkItemHandler(myksession);
    myksession.getWorkItemManager().registerWorkItemHandler("Human Task", hornetQHTWorkItemHandler);
    KnowledgeRuntimeLoggerFactory.newConsoleLogger(myksession);
    myksession.addEventListener(new DebugAgendaEventListener());
    return myksession;
}

Example 19 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class MyFirstDrools5FusionRulesTest method createKnowledgeSession.

private StatefulKnowledgeSession createKnowledgeSession() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    kbuilder.add(new ClassPathResource("simpleEventAnalysis.drl"), ResourceType.DRL);
    if (kbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : kbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBaseConfiguration config = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    config.setOption(EventProcessingOption.STREAM);
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(config);
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    KnowledgeSessionConfiguration sessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration();
    sessionConfig.setOption(ClockTypeOption.get("pseudo"));
    return kbase.newStatefulKnowledgeSession(sessionConfig, null);
}

Example 20 with KnowledgeBase

use of org.drools.KnowledgeBase in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventMultiThreadIntegrationTest method createEventsSession.

private StatefulKnowledgeSession createEventsSession() {
    KnowledgeBuilder eventsKbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    eventsKbuilder.add(new ClassPathResource("analyze-process-events.drl"), ResourceType.DRL);
    if (eventsKbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : eventsKbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        fail(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBaseConfiguration config = KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
    config.setOption(EventProcessingOption.STREAM);
    KnowledgeBase eventsKbase = KnowledgeBaseFactory.newKnowledgeBase(config);
    eventsKbase.addKnowledgePackages(eventsKbuilder.getKnowledgePackages());
    StatefulKnowledgeSession eventsKsession = eventsKbase.newStatefulKnowledgeSession();
    ((StatefulKnowledgeSessionImpl) eventsKsession).getInternalWorkingMemory().addEventListener(new DefaultWorkingMemoryEventListener() {

        @Override
        public void objectInserted(ObjectInsertedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }

        @Override
        public void objectUpdated(ObjectUpdatedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }

        @Override
        public void objectRetracted(ObjectRetractedEvent event) {
            event.getWorkingMemory().fireAllRules();
        }
    });
    ((StatefulKnowledgeSessionImpl) eventsKsession).getInternalWorkingMemory().addEventListener(new DefaultAgendaEventListener() {

        @Override
        public void activationCreated(ActivationCreatedEvent event, WorkingMemory workingMemory) {
            workingMemory.fireAllRules();
        }
    });
    return eventsKsession;
}