Examples with ResourceType org.drools.builder.ResourceType used on opensource projects

Example 1 with ResourceType

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

the class MultiSessionsPatternsTest method createProcessInteractionKnowledgeSession.

/**
 * Creates a new ksession containing a single rules resource:
 * 'interaction-rules.drl'.
 * This method uses {@link #createKnowledgeSession(java.lang.String, java.util.Map)}
 * in order to create the ksession.
 * @param key The key used to register the kbase created with the resources
 * used by this method.
 * @param em The entity manager registered as a global in the created
 * session.
 * @return a new ksession containing a single process definition.
 */
private StatefulKnowledgeSession createProcessInteractionKnowledgeSession(String key, EntityManager em) {
    Map<Resource, ResourceType> resources = new HashMap<Resource, ResourceType>();
    resources.put(ResourceFactory.newClassPathResource("interaction-rules.drl"), ResourceType.DRL);
    // creates the session
    StatefulKnowledgeSession ksession = this.createKnowledgeSession(key, resources);
    // register globals
    ksession.setGlobal("em", em);
    ksession.setGlobal("ksessionSupport", this);
    return ksession;
}

Example 2 with ResourceType

use of org.drools.builder.ResourceType 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());
        }
    });
}

Example 3 with ResourceType

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

the class SessionsPatternsTestsBase method createKnowledgeSession.

/**
 * Creates a new Knowledge Base with the passed resources and returns a fresh
 * ksession from it. This method register the created kbase in {@link #kbases}
 * with the key passed as parameter. The returned session is configured as
 * persistent.
 * @param key the key used to register the generated kbase in {@link #kbases}.
 * @param resources The resources to be placed inside the generated kbase.
 * @return
 */
protected StatefulKnowledgeSession createKnowledgeSession(String key, Map<Resource, ResourceType> resources) {
    // Creates a new kbuilder
    KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
    // Adds al the given resources
    for (Map.Entry<Resource, ResourceType> entry : resources.entrySet()) {
        kbuilder.add(entry.getKey(), entry.getValue());
    }
    // If there is any compilation error then fail!
    if (kbuilder.hasErrors()) {
        for (KnowledgeBuilderError error : kbuilder.getErrors()) {
            System.out.println(">>> Error:" + error.getMessage());
        }
        Assert.fail(">>> Knowledge couldn't be parsed! ");
    }
    // Creates a new kbase
    KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    // Add the generated knowledge packages from kbuilder.
    kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
    // Register the kbase in this.kbases
    kbases.put(key, kbase);
    // Creates a Persistence Knowledge Session
    System.out.println(" >>> Let's create a Persistent Knowledge Session");
    final StatefulKnowledgeSession ksession = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, createEnvironment());
    return ksession;
}