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Example 11 with DefaultProcessEventListener

use of org.drools.event.process.DefaultProcessEventListener in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventIntegrationTest method processEventsWithListenerTest.

@Test
public void processEventsWithListenerTest() throws InterruptedException {
    // Let's create a kbuilder, kbase and ksession for running the process
    final StatefulKnowledgeSession processKsession = createProcessSession();
    // Let's create a kbuilder, kbase and ksession for analyzing the process events
    final StatefulKnowledgeSession eventsKsession = createEventsSession();
    final TaskSpeed taskSpeed = new TaskSpeed(1000L);
    eventsKsession.setGlobal("taskSpeed", taskSpeed);
    processKsession.getWorkItemManager().registerWorkItemHandler("Human Task", new WorkItemHandler() {

        public void executeWorkItem(WorkItem wi, WorkItemManager wim) {
            try {
                System.out.println(" >>> Working on Task! it will take: " + taskSpeed.getAmount() / 1000 + " seconds.");
                Thread.sleep(taskSpeed.getAmount());
            } catch (InterruptedException ex) {
                Logger.getLogger(ProcessAndEventIntegrationTest.class.getName()).log(Level.SEVERE, null, ex);
            }
            System.out.println(" >>> Completing Task! -> " + wi.getName() + " - id: " + wi.getId());
            wim.completeWorkItem(wi.getId(), null);
        }

        public void abortWorkItem(WorkItem wi, WorkItemManager wim) {
        // do nothing
        }
    });
    processKsession.addEventListener(new DefaultProcessEventListener() {

        @Override
        public void beforeProcessStarted(ProcessStartedEvent event) {
            System.out.println(" >>> Before Process Started: " + event.getProcessInstance().getProcessName());
            eventsKsession.insert(event);
        }

        @Override
        public void afterProcessCompleted(ProcessCompletedEvent event) {
            System.out.println(" >>> After Process Completed: " + event.getProcessInstance().getProcessName());
            eventsKsession.insert(event);
        }

        @Override
        public void beforeNodeLeft(org.drools.event.process.ProcessNodeLeftEvent event) {
            System.out.println(" >>> Before Node Left: " + event.getNodeInstance().getNodeName());
            eventsKsession.insert(event);
        }
    });
    for (int i = 0; i < 20; i++) {
        final int id = i;
        Person person = new Person("Salaboy-" + id, id);
        Map<String, Object> params = new HashMap<String, Object>();
        params.put("person", person);
        ProcessInstance processInstance = processKsession.createProcessInstance("com.salaboy.process.SimpleProcess", params);
        assertEquals(processInstance.getState(), ProcessInstance.STATE_PENDING);
        FactHandle processtHandle = processKsession.insert(processInstance);
        System.out.println("Starting Process Instance: " + processInstance.getId());
        processKsession.startProcessInstance(processInstance.getId());
        assertEquals(processInstance.getState(), ProcessInstance.STATE_COMPLETED);
        processKsession.retract(processtHandle);
    }
}
Also used : HashMap(java.util.HashMap) FactHandle(org.drools.runtime.rule.FactHandle) StatefulKnowledgeSession(org.drools.runtime.StatefulKnowledgeSession) ProcessStartedEvent(org.drools.event.process.ProcessStartedEvent) TaskSpeed(com.salaboy.model.TaskSpeed) WorkItem(org.drools.runtime.process.WorkItem) ProcessCompletedEvent(org.drools.event.process.ProcessCompletedEvent) WorkItemHandler(org.drools.process.instance.WorkItemHandler) DefaultProcessEventListener(org.drools.event.process.DefaultProcessEventListener) ProcessInstance(org.drools.runtime.process.ProcessInstance) WorkItemManager(org.drools.runtime.process.WorkItemManager) Person(com.salaboy.model.Person)

Example 12 with DefaultProcessEventListener

use of org.drools.event.process.DefaultProcessEventListener in project jBPM5-Developer-Guide by Salaboy.

the class ProcessAndEventMultiThreadIntegrationTest method processEventsWithListenerTest.

@Test
public void processEventsWithListenerTest() throws InterruptedException {
    // Let's create a kbuilder, kbase and ksession for running the process
    final StatefulKnowledgeSession processKsession = createProcessSession();
    // Let's create a kbuilder, kbase and ksession for analyzing the process events
    final StatefulKnowledgeSession eventsKsession = createEventsSession();
    final TaskSpeed taskSpeed = new TaskSpeed(1000L);
    eventsKsession.setGlobal("taskSpeed", taskSpeed);
    processKsession.getWorkItemManager().registerWorkItemHandler("Human Task", new WorkItemHandler() {

        public void executeWorkItem(WorkItem wi, WorkItemManager wim) {
            try {
                System.out.println(" >>> Working on Task! it will take: " + taskSpeed.getAmount() / 1000 + " seconds.");
                Thread.sleep(taskSpeed.getAmount());
            } catch (InterruptedException ex) {
                Logger.getLogger(ProcessAndEventMultiThreadIntegrationTest.class.getName()).log(Level.SEVERE, null, ex);
            }
            System.out.println(" >>> Completing Task! -> " + wi.getName() + " - id: " + wi.getId());
            wim.completeWorkItem(wi.getId(), null);
        }

        public void abortWorkItem(WorkItem wi, WorkItemManager wim) {
        // do nothing
        }
    });
    ((StatefulKnowledgeSessionImpl) processKsession).addEventListener(new DefaultProcessEventListener() {

        @Override
        public void beforeProcessStarted(ProcessStartedEvent event) {
            System.out.println(" >>> Before Process Started: " + event.getProcessInstance().getProcessName());
            eventsKsession.insert(event);
        }

        @Override
        public void afterProcessCompleted(ProcessCompletedEvent event) {
            System.out.println(" >>> After Process Completed: " + event.getProcessInstance().getProcessName());
            eventsKsession.insert(event);
        }

        @Override
        public void beforeNodeLeft(org.drools.event.process.ProcessNodeLeftEvent event) {
            System.out.println(" >>> Before Node Left: " + event.getNodeInstance().getNodeName());
            eventsKsession.insert(event);
        }
    });
    for (int i = 0; i < 5; i++) {
        for (int j = 0; j < 5; j++) {
            final int id1 = i;
            final int id2 = j;
            new Thread(new Runnable() {

                public void run() {
                    Person person = new Person("Salaboy-" + id1 + "_" + id2, id2);
                    Map<String, Object> params = new HashMap<String, Object>();
                    params.put("person", person);
                    ProcessInstance processInstance = processKsession.createProcessInstance("com.salaboy.process.SimpleProcess", params);
                    assertEquals(processInstance.getState(), ProcessInstance.STATE_PENDING);
                    FactHandle processtHandle = processKsession.insert(processInstance);
                    System.out.println("Starting Process Instance: " + processInstance.getId());
                    processKsession.startProcessInstance(processInstance.getId());
                    assertEquals(processInstance.getState(), ProcessInstance.STATE_COMPLETED);
                    processKsession.retract(processtHandle);
                }
            }).start();
        }
        Thread.sleep(3000);
    }
}
Also used : HashMap(java.util.HashMap) FactHandle(org.drools.runtime.rule.FactHandle) StatefulKnowledgeSession(org.drools.runtime.StatefulKnowledgeSession) ProcessStartedEvent(org.drools.event.process.ProcessStartedEvent) TaskSpeed(com.salaboy.model.TaskSpeed) WorkItem(org.drools.runtime.process.WorkItem) ProcessCompletedEvent(org.drools.event.process.ProcessCompletedEvent) WorkItemHandler(org.drools.process.instance.WorkItemHandler) StatefulKnowledgeSessionImpl(org.drools.impl.StatefulKnowledgeSessionImpl) DefaultProcessEventListener(org.drools.event.process.DefaultProcessEventListener) ProcessInstance(org.drools.runtime.process.ProcessInstance) WorkItemManager(org.drools.runtime.process.WorkItemManager) Person(com.salaboy.model.Person)

Example 13 with DefaultProcessEventListener

use of org.drools.event.process.DefaultProcessEventListener in project jBPM5-Developer-Guide by Salaboy.

the class EmergencyBedRequestBaseTest method initializeSession.

/**
     * Compiles the resources indicated by the concrete implementation of 
     * this class (using {@link #getResources()} abstract method.
     * If there is any compilation error an {@link IllegalStateException} is
     * thrown.
     * After the resources are compiled, a kbase is created and populated with
     * the resulting knowledge package/s.
     * From this kbase, a new StatefulKnowledgeSession is created. The session
     * is configured with 2 listeners:
     * 1.- An Agenda event listener that will fireAllRules() every time an
     * activation happens
     * 2.- A Process event listener that will insert the process instance as
     * a Fact once a process is started.
     */
private void initializeSession() {
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    for (Map.Entry<Resource, ResourceType> entry : this.getResources().entrySet()) {
        kbuilder.add(entry.getKey(), entry.getValue());
    }
    if (kbuilder.hasErrors()) {
        KnowledgeBuilderErrors errors = kbuilder.getErrors();
        for (KnowledgeBuilderError error : errors) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        throw new IllegalStateException(">>> Knowledge couldn't be parsed! ");
    }
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    session = kbase.newStatefulKnowledgeSession();
    KnowledgeRuntimeLoggerFactory.newConsoleLogger(session);
    session.addEventListener(new DefaultAgendaEventListener() {

        @Override
        public void afterRuleFlowGroupActivated(org.drools.event.rule.RuleFlowGroupActivatedEvent event) {
            session.fireAllRules();
        }
    });
    session.addEventListener(new DefaultProcessEventListener() {

        @Override
        public void beforeProcessStarted(ProcessStartedEvent event) {
            session.insert(event.getProcessInstance());
        }
    });
}
Also used : KnowledgeBuilderError(org.drools.builder.KnowledgeBuilderError) KnowledgeBuilderErrors(org.drools.builder.KnowledgeBuilderErrors) Resource(org.drools.io.Resource) ProcessStartedEvent(org.drools.event.process.ProcessStartedEvent) DefaultAgendaEventListener(org.drools.event.rule.DefaultAgendaEventListener) ResourceType(org.drools.builder.ResourceType) KnowledgeBuilder(org.drools.builder.KnowledgeBuilder) KnowledgeBase(org.drools.KnowledgeBase) DefaultProcessEventListener(org.drools.event.process.DefaultProcessEventListener) Map(java.util.Map)

Aggregations

DefaultProcessEventListener (org.drools.event.process.DefaultProcessEventListener)13 StatefulKnowledgeSession (org.drools.runtime.StatefulKnowledgeSession)12 KnowledgeBase (org.drools.KnowledgeBase)11 KnowledgeBuilder (org.drools.builder.KnowledgeBuilder)11 KnowledgeBuilderError (org.drools.builder.KnowledgeBuilderError)11 ClassPathResource (org.drools.io.impl.ClassPathResource)10 QueryResults (org.drools.runtime.rule.QueryResults)8 HashMap (java.util.HashMap)7 ProcessInstance (org.drools.runtime.process.ProcessInstance)7 Test (org.junit.Test)7 Person (com.salaboy.model.Person)6 Resources (com.salaboy.model.Resources)6 ProcessNodeLeftEvent (org.drools.event.process.ProcessNodeLeftEvent)6 ProcessStartedEvent (org.drools.event.process.ProcessStartedEvent)6 FactHandle (org.drools.runtime.rule.FactHandle)6 Customer (com.salaboy.model.Customer)5 ProcessNodeTriggeredEvent (org.drools.event.process.ProcessNodeTriggeredEvent)5 ProcessCompletedEvent (org.drools.event.process.ProcessCompletedEvent)4 DefaultAgendaEventListener (org.drools.event.rule.DefaultAgendaEventListener)4 RatesToday (com.salaboy.model.RatesToday)3