Examples with TreeCache org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.TreeCache used on opensource projects

Example 26 with TreeCache

use of org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.TreeCache in project sharding-jdbc by shardingjdbc.

the class ZookeeperRegistryCenter method addCacheData.

private void addCacheData(final String cachePath) {
    TreeCache cache = new TreeCache(client, cachePath);
    try {
        cache.start();
    // CHECKSTYLE:OFF
    } catch (final Exception ex) {
        // CHECKSTYLE:ON
        RegExceptionHandler.handleException(ex);
    }
    caches.put(cachePath + "/", cache);
}

Example 27 with TreeCache

use of org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.TreeCache in project flink by apache.

the class ZooKeeperUtils method createTreeCache.

/**
 * Creates a {@link TreeCache} that only observes a specific node.
 *
 * @param client ZK client
 * @param pathToNode full path of the node to observe
 * @param nodeChangeCallback callback to run if the node has changed
 * @return tree cache
 */
public static TreeCache createTreeCache(final CuratorFramework client, final String pathToNode, final RunnableWithException nodeChangeCallback) {
    final TreeCache cache = TreeCache.newBuilder(client, pathToNode).setCacheData(true).setCreateParentNodes(false).setSelector(ZooKeeperUtils.treeCacheSelectorForPath(pathToNode)).setExecutor(Executors.newDirectExecutorService()).build();
    cache.getListenable().addListener(createTreeCacheListener(nodeChangeCallback));
    return cache;
}

Example 28 with TreeCache

use of org.apache.flink.shaded.curator5.org.apache.curator.framework.recipes.cache.TreeCache in project flink by apache.

the class ZooKeeperUtilsTreeCacheTest method setUp.

@Before
public void setUp() throws Exception {
    closer = Closer.create();
    final TestingServer testingServer = closer.register(new TestingServer());
    Configuration configuration = new Configuration();
    configuration.set(HighAvailabilityOptions.HA_ZOOKEEPER_QUORUM, testingServer.getConnectString());
    curatorFrameworkWrapper = closer.register(ZooKeeperUtils.startCuratorFramework(configuration, NoOpFatalErrorHandler.INSTANCE));
    client = curatorFrameworkWrapper.asCuratorFramework();
    final TreeCache cache = closer.register(ZooKeeperUtils.createTreeCache(client, CHILD_PATH, () -> callbackFutureReference.get().complete(null)));
    cache.start();
}