Examples with NotificationContext org.apache.helix.NotificationContext used on opensource projects

Example 16 with NotificationContext

use of org.apache.helix.NotificationContext in project ambry by linkedin.

the class MockHelixManager method triggerConfigChangeNotification.

void triggerConfigChangeNotification(boolean init) {
    if (!isConnected) {
        return;
    }
    NotificationContext notificationContext = new NotificationContext(this);
    if (init) {
        notificationContext.setType(NotificationContext.Type.INIT);
    }
    instanceConfigChangeListeners.forEach(listener -> listener.onInstanceConfigChange(mockAdmin.getInstanceConfigs(clusterName), notificationContext));
}

Example 17 with NotificationContext

use of org.apache.helix.NotificationContext in project ambry by linkedin.

the class MockHelixManager method triggerLiveInstanceNotification.

/**
 * Trigger a live instance change notification.
 */
void triggerLiveInstanceNotification(boolean init) {
    List<LiveInstance> liveInstances = new ArrayList<>();
    for (String instance : mockAdmin.getUpInstances()) {
        liveInstances.add(new LiveInstance(instance));
    }
    NotificationContext notificationContext = new NotificationContext(this);
    if (init) {
        notificationContext.setType(NotificationContext.Type.INIT);
    }
    liveInstanceChangeListener.onLiveInstanceChange(liveInstances, notificationContext);
}

Example 18 with NotificationContext

use of org.apache.helix.NotificationContext in project ambry by linkedin.

the class MockHelixManager method triggerIdealStateNotification.

void triggerIdealStateNotification(boolean init) throws InterruptedException {
    NotificationContext notificationContext = new NotificationContext(this);
    if (init) {
        notificationContext.setType(NotificationContext.Type.INIT);
    }
    idealStateChangeListener.onIdealStateChange(mockAdmin.getIdealStates(), notificationContext);
}

Example 19 with NotificationContext

use of org.apache.helix.NotificationContext in project pinot by linkedin.

the class PinotRealtimeSegmentManager method start.

public void start(ControllerMetrics controllerMetrics) {
    _controllerMetrics = controllerMetrics;
    LOGGER.info("Starting realtime segments manager, adding a listener on the property store table configs path.");
    String zkUrl = _pinotHelixResourceManager.getHelixZkURL();
    _zkClient = new ZkClient(zkUrl, ZkClient.DEFAULT_SESSION_TIMEOUT, ZkClient.DEFAULT_CONNECTION_TIMEOUT);
    _zkClient.setZkSerializer(new ZNRecordSerializer());
    _zkClient.waitUntilConnected();
    // Subscribe to any data/child changes to property
    _zkClient.subscribeChildChanges(_tableConfigPath, this);
    _zkClient.subscribeDataChanges(_tableConfigPath, this);
    // Subscribe to leadership changes
    _pinotHelixResourceManager.getHelixZkManager().addControllerListener(new ControllerChangeListener() {

        @Override
        public void onControllerChange(NotificationContext changeContext) {
            processPropertyStoreChange(CONTROLLER_LEADER_CHANGE);
        }
    });
    // Setup change listeners for already existing tables, if any.
    processPropertyStoreChange(_tableConfigPath);
}

Example 20 with NotificationContext

use of org.apache.helix.NotificationContext in project pinot by linkedin.

the class SegmentStatusChecker method start.

/**
   * Starts the segment status checker.
   */
public void start(ControllerMetrics metricsRegistry) {
    if (_segmentStatusIntervalSeconds == -1) {
        return;
    }
    _metricsRegistry = metricsRegistry;
    setStatusToDefault();
    // Subscribe to leadership changes
    _pinotHelixResourceManager.getHelixZkManager().addControllerListener(new ControllerChangeListener() {

        @Override
        public void onControllerChange(NotificationContext changeContext) {
            processLeaderChange(CONTROLLER_LEADER_CHANGE);
        }
    });
}