Examples with EventBus org.olat.core.util.event.EventBus used on opensource projects

Example 11 with EventBus

use of org.olat.core.util.event.EventBus in project openolat by klemens.

the class JMSTest method testSendReceive.

@Test
public void testSendReceive() {
    // enable test only if we have the cluster configuration enabled.
    // this test requires that an JMS Provider is running
    // (see file serviceconfig/org/olat/core/_spring/coreextconfig.xml)
    EventBus bus = CoordinatorManager.getInstance().getCoordinator().getEventBus();
    if (bus instanceof ClusterEventBus) {
        Identity id = JunitTestHelper.createAndPersistIdentityAsRndUser("jms");
        // send and wait some time until a message should arrive at the latest.
        final OLATResourceable ores = OresHelper.createOLATResourceableInstance("hellojms", new Long(123));
        final CountDownLatch doneSignal = new CountDownLatch(1);
        bus.registerFor(new GenericEventListener() {

            @Override
            public void event(Event event) {
                log.audit("Event received: " + event);
                doneSignal.countDown();
            }
        }, id, ores);
        MultiUserEvent mue = new MultiUserEvent("amuecommand");
        bus.fireEventToListenersOf(mue, ores);
        try {
            boolean interrupt = doneSignal.await(5, TimeUnit.SECONDS);
            assertTrue("Test takes too long (more than 5s)", interrupt);
        } catch (InterruptedException e) {
            fail("" + e.getMessage());
        }
    }
}

Example 12 with EventBus

use of org.olat.core.util.event.EventBus in project openolat by klemens.

the class InfoMessageManager method setInfoMessage.

/**
 * @param message The new info message that will show up on the login screen
 * Synchronized to prevent two users creating or updating the info message property
 * at the same time
 */
public void setInfoMessage(final String message) {
    // o_clusterOK synchronized
    OLATResourceable ores = OresHelper.createOLATResourceableInstance(INFO_MSG, KEY);
    coordinatorManager.getCoordinator().getSyncer().doInSync(ores, new SyncerExecutor() {

        public void execute() {
            PropertyManager pm = PropertyManager.getInstance();
            Property p = pm.findProperty(null, null, null, "_o3_", INFO_MSG);
            if (p == null) {
                p = pm.createPropertyInstance(null, null, null, "_o3_", INFO_MSG, null, null, null, "");
                pm.saveProperty(p);
            }
            p.setTextValue(message);
            // set Message in RAM
            InfoMessageManager.infoMessage = message;
            pm.updateProperty(p);
        }
    });
    // end syncerCallback
    EventBus eb = coordinatorManager.getCoordinator().getEventBus();
    MultiUserEvent mue = new MultiUserEvent(message);
    eb.fireEventToListenersOf(mue, INFO_MESSAGE_ORES);
}