Examples with TopologyEvent org.apache.sling.discovery.TopologyEvent used on opensource projects

Example 16 with TopologyEvent

use of org.apache.sling.discovery.TopologyEvent in project sling by apache.

the class ClusterTest method assertCountEvents.

private void assertCountEvents(ViewStateManagerImpl mgr, DummyListener l, TopologyEvent.Type... types) throws InterruptedException {
    waitForInflightEvents(mgr);
    assertEquals(types.length, l.countEvents());
    Iterator<TopologyEvent> it = l.getEvents().iterator();
    int i = 0;
    while (it.hasNext() && (i < types.length)) {
        TopologyEvent expectedEvent = it.next();
        Type gotType = types[i++];
        assertEquals(expectedEvent.getType(), gotType);
    }
    if (it.hasNext()) {
        StringBuffer additionalTypes = new StringBuffer();
        while (it.hasNext()) {
            additionalTypes.append(",");
            additionalTypes.append(it.next().getType());
        }
        fail("got more events than expected : " + additionalTypes);
    }
    if (i < types.length) {
        StringBuffer additionalTypes = new StringBuffer();
        while (i < types.length) {
            additionalTypes.append(",");
            additionalTypes.append(types[i++]);
        }
        fail("did not get all events, also expected : " + additionalTypes);
    }
}

Example 17 with TopologyEvent

use of org.apache.sling.discovery.TopologyEvent in project sling by apache.

the class JobManagerConfiguration method doHandleTopologyEvent.

void doHandleTopologyEvent(final TopologyEvent event) {
    // check if there is a change of properties which doesn't affect us
    // but we need to use the new view !
    boolean stopProcessing = true;
    if (event.getType() == Type.PROPERTIES_CHANGED) {
        final Map<String, String> newAllInstances = TopologyCapabilities.getAllInstancesMap(event.getNewView());
        if (this.topologyCapabilities != null && this.topologyCapabilities.isSame(newAllInstances)) {
            logger.debug("No changes in capabilities - updating topology capabilities with new view");
            stopProcessing = false;
        }
    }
    final TopologyEvent.Type eventType = event.getType();
    if (eventType == Type.TOPOLOGY_CHANGING) {
        this.stopProcessing();
    } else if (eventType == Type.TOPOLOGY_INIT || event.getType() == Type.TOPOLOGY_CHANGED || event.getType() == Type.PROPERTIES_CHANGED) {
        if (stopProcessing) {
            this.stopProcessing();
        }
        this.startProcessing(eventType, new TopologyCapabilities(event.getNewView(), this));
    }
}

Example 18 with TopologyEvent

use of org.apache.sling.discovery.TopologyEvent in project sling by apache.

the class JobManagerConfiguration method activate.

/**
     * Activate this component.
     * @param props Configuration properties
     * @param config Configuration properties
     * @throws RuntimeException If the default paths can't be created
     */
@Activate
protected void activate(final Map<String, Object> props, final Config config) {
    this.update(props, config);
    this.jobsBasePathWithSlash = PropertiesUtil.toString(props.get(PROPERTY_REPOSITORY_PATH), DEFAULT_REPOSITORY_PATH) + '/';
    // create initial resources
    this.assignedJobsPath = this.jobsBasePathWithSlash + "assigned";
    this.unassignedJobsPath = this.jobsBasePathWithSlash + "unassigned";
    this.localJobsPath = this.assignedJobsPath.concat("/").concat(Environment.APPLICATION_ID);
    this.localJobsPathWithSlash = this.localJobsPath.concat("/");
    this.previousVersionAnonPath = this.jobsBasePathWithSlash + "anon";
    this.previousVersionIdentifiedPath = this.jobsBasePathWithSlash + "identified";
    this.storedCancelledJobsPath = this.jobsBasePathWithSlash + "cancelled";
    this.storedSuccessfulJobsPath = this.jobsBasePathWithSlash + "finished";
    this.scheduledJobsPath = PropertiesUtil.toString(props.get(PROPERTY_SCHEDULED_JOBS_PATH), DEFAULT_SCHEDULED_JOBS_PATH);
    this.scheduledJobsPathWithSlash = this.scheduledJobsPath + "/";
    // create initial resources
    final ResourceResolver resolver = this.createResourceResolver();
    try {
        ResourceHelper.getOrCreateBasePath(resolver, this.getLocalJobsPath());
        ResourceHelper.getOrCreateBasePath(resolver, this.getUnassignedJobsPath());
    } catch (final PersistenceException pe) {
        logger.error("Unable to create default paths: " + pe.getMessage(), pe);
        throw new RuntimeException(pe);
    } finally {
        resolver.close();
    }
    this.active.set(true);
    // SLING-5560 : use an InitDelayingTopologyEventListener
    if (this.startupDelay > 0) {
        logger.debug("activate: job manager will start in {} sec. ({})", this.startupDelay, config.startup_delay());
        this.startupDelayListener = new InitDelayingTopologyEventListener(startupDelay, new TopologyEventListener() {

            @Override
            public void handleTopologyEvent(TopologyEvent event) {
                doHandleTopologyEvent(event);
            }
        }, logger);
    } else {
        logger.debug("activate: job manager will start without delay. ({}:{})", config.startup_delay(), this.startupDelay);
    }
}

Example 19 with TopologyEvent

use of org.apache.sling.discovery.TopologyEvent in project sling by apache.

the class JobManagerConfigurationTest method testTopologyChange.

@Test
public void testTopologyChange() throws Exception {
    // mock scheduler
    final ChangeListener ccl = new ChangeListener();
    // add change listener and verify
    ccl.init(1);
    final JobManagerConfiguration config = new JobManagerConfiguration();
    ((AtomicBoolean) TestUtil.getFieldValue(config, "active")).set(true);
    InitDelayingTopologyEventListener startupDelayListener = new InitDelayingTopologyEventListener(1, new TopologyEventListener() {

        @Override
        public void handleTopologyEvent(TopologyEvent event) {
            config.doHandleTopologyEvent(event);
        }
    });
    TestUtil.setFieldValue(config, "startupDelayListener", startupDelayListener);
    config.addListener(ccl);
    ccl.await();
    assertEquals(1, ccl.events.size());
    assertFalse(ccl.events.get(0));
    // create init view
    ccl.init(1);
    final TopologyView initView = createView();
    final TopologyEvent init = new TopologyEvent(TopologyEvent.Type.TOPOLOGY_INIT, null, initView);
    config.handleTopologyEvent(init);
    ccl.await();
    assertEquals(1, ccl.events.size());
    assertTrue(ccl.events.get(0));
    // change view, followed by change props
    ccl.init(2);
    final TopologyView view2 = createView();
    Mockito.when(initView.isCurrent()).thenReturn(false);
    final TopologyEvent change1 = new TopologyEvent(TopologyEvent.Type.TOPOLOGY_CHANGED, initView, view2);
    final TopologyView view3 = createView();
    final TopologyEvent change2 = new TopologyEvent(TopologyEvent.Type.PROPERTIES_CHANGED, view2, view3);
    config.handleTopologyEvent(change1);
    Mockito.when(view2.isCurrent()).thenReturn(false);
    config.handleTopologyEvent(change2);
    ccl.await();
    assertEquals(2, ccl.events.size());
    assertFalse(ccl.events.get(0));
    assertTrue(ccl.events.get(1));
    // we wait another 4 secs to see if there is no another event
    Thread.sleep(4000);
    assertEquals(2, ccl.events.size());
}

Example 20 with TopologyEvent

use of org.apache.sling.discovery.TopologyEvent in project sling by apache.

the class TestInitDelayingTopologyEventListener method createEvent.

private TopologyEvent createEvent(Type type) {
    TopologyView oldView = createView(false);
    TopologyView newView = createView(true);
    switch(type) {
        case TOPOLOGY_CHANGING:
            {
                return new TopologyEvent(type, oldView, null);
            }
        case PROPERTIES_CHANGED:
        case TOPOLOGY_CHANGED:
            {
                return new TopologyEvent(type, oldView, newView);
            }
        case TOPOLOGY_INIT:
            {
                return new TopologyEvent(type, null, newView);
            }
        default:
            {
                throw new IllegalArgumentException("unknown type: " + type);
            }
    }
}