Examples with ProcessStartedEvent org.drools.event.process.ProcessStartedEvent used on opensource projects

Example 6 with ProcessStartedEvent

use of org.drools.event.process.ProcessStartedEvent 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());
        }
    });
}