org.apache.curator.framework.recipes.cache.TreeCache#start

Source File: CuratorZookeeperClient.java From FATE-Serving with Apache License 2.0

6 votes

@Override
protected void addTargetDataListener(String path, CuratorZookeeperClient.CuratorWatcherImpl treeCacheListener, Executor executor) {
    try {
        TreeCache treeCache = TreeCache.newBuilder(client, path).setCacheData(false).build();
        treeCacheMap.putIfAbsent(path, treeCache);

        if (executor == null) {
            treeCache.getListenable().addListener(treeCacheListener);
        } else {
            treeCache.getListenable().addListener(treeCacheListener, executor);
        }

        treeCache.start();
    } catch (Exception e) {
        throw new IllegalStateException("Add treeCache listener for path:" + path, e);
    }
}

Source File: ZookeeperRegistryCenter.java From shardingsphere-elasticjob-cloud with Apache License 2.0

5 votes

@Override
public 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);
}

Source File: TreeCacheExample.java From curator with Apache License 2.0

5 votes

public static void main(String[] args) throws Exception
{
    CuratorFramework client = CreateClientExamples.createSimple("127.0.0.1:2181");
    client.getUnhandledErrorListenable().addListener((message, e) -> {
        System.err.println("error=" + message);
        e.printStackTrace();
    });
    client.getConnectionStateListenable().addListener((c, newState) -> {
        System.out.println("state=" + newState);
    });
    client.start();

    TreeCache cache = TreeCache.newBuilder(client, "/").setCacheData(false).build();
    cache.getListenable().addListener((c, event) -> {
        if ( event.getData() != null )
        {
            System.out.println("type=" + event.getType() + " path=" + event.getData().getPath());
        }
        else
        {
            System.out.println("type=" + event.getType());
        }
    });
    cache.start();

    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    in.readLine();
}

Source File: ZkClient.java From xio with Apache License 2.0

5 votes

public void startTreeCache(TreeCache cache) {
  try {
    cache.start();
  } catch (Exception e) {
    log.error("Error starting treeCache {}", cache, e);
    throw new RuntimeException(e);
  }
}

Source File: ZookeeperTreeCacheListener.java From Thunder with Apache License 2.0

5 votes

public ZookeeperTreeCacheListener(CuratorFramework client, String path) throws Exception {
    super(client, path);

    treeCache = new TreeCache(client, path);
    treeCache.start();
    treeCache.getListenable().addListener(this);

    addListener();
}

Source File: ZookeeperRegistryCenter.java From shardingsphere-elasticjob-lite with Apache License 2.0

5 votes

@Override
public 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);
}

Source File: CuratorZookeeperCenterRepository.java From shardingsphere with Apache License 2.0

5 votes

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

Source File: ZookeeperRegistryCenter.java From idworker with Apache License 2.0

5 votes

@Override
public void addCacheData(final String cachePath) {
    TreeCache cache = new TreeCache(client, cachePath);
    try {
        cache.start();
    } catch (final Exception ex) {
        RegExceptionHandler.handleException(ex);
    }
    caches.put(cachePath + "/", cache);
}

Source File: ZookeeperRegistryCenter.java From paascloud-master with Apache License 2.0

5 votes

/**
 * Add cache data.
 *
 * @param cachePath the cache path
 */
@Override
public 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);
}

Source File: LogSearchConfigServerZK.java From ambari-logsearch with Apache License 2.0

5 votes

@Override
public void init(Map<String, String> properties) throws Exception {
  super.init(properties);

  if (client.checkExists().forPath("/") == null) {
    client.create().creatingParentContainersIfNeeded().forPath("/");
  }
  serverCache = new TreeCache(client, "/");
  serverCache.start();
  LogLevelFilterManager logLevelFilterManager = new LogLevelFilterManagerZK(client, serverCache, LogSearchConfigZKHelper.getAcls(properties), gson);
  setLogLevelFilterManager(logLevelFilterManager);
}

Source File: ZookeeperAppSubscriber.java From sofa-dashboard-client with Apache License 2.0

5 votes

@Override
public void beforeStart(CuratorFramework client) {
    // Add listeners to manage local cache
    TreeCache cache = new TreeCache(client,
        ZookeeperConstants.SOFA_BOOT_CLIENT_INSTANCE);
    TreeCacheListener listener = (cli, event) -> {
        String dataPath = event.getData() == null ? null : event.getData().getPath();
        LOGGER
            .info("Dashboard client event type = {}, path= {}", event.getType(),
                dataPath);
        switch (event.getType()) {
            case NODE_ADDED:
            case NODE_UPDATED:
                runInSafe(() -> doCreateOrUpdateApplications(event));
                break;
            case NODE_REMOVED:
            case CONNECTION_LOST:
                runInSafe(() -> doRemoveApplications(event));
                break;
            case CONNECTION_RECONNECTED: // Try to recover data while reconnected
                doRebuildCache();
                break;
            default:
                break;
        }
    };
    cache.getListenable().addListener(listener);
    try {
        cache.start();
    } catch (Exception e) {
        LOGGER.error("Start cache error.", e);
    }
}

Source File: ZkCuratorServer.java From schedule-spring-boot-starter with Apache License 2.0

4 votes

public static void addTreeCacheListener(final ApplicationContext applicationContext, final CuratorFramework client, String path) throws Exception {
    TreeCache treeCache = new TreeCache(client, path);
    treeCache.start();
    treeCache.getListenable().addListener((curatorFramework, event) -> {
        if (null == event.getData()) return;
        byte[] eventData = event.getData().getData();
        if (null == eventData || eventData.length < 1) return;
        String json = new String(eventData, Constants.Global.CHARSET_NAME);
        if ("".equals(json) || json.indexOf("{") != 0 || json.lastIndexOf("}") + 1 != json.length()) return;
        Instruct instruct = JSON.parseObject(new String(event.getData().getData(), Constants.Global.CHARSET_NAME), Instruct.class);
        switch (event.getType()) {
            case NODE_ADDED:
            case NODE_UPDATED:
                if (Constants.Global.ip.equals(instruct.getIp()) && Constants.Global.schedulerServerId.equals(instruct.getSchedulerServerId())) {
                    //获取对象
                    CronTaskRegister cronTaskRegistrar = applicationContext.getBean("itstack-middlware-schedule-cronTaskRegister", CronTaskRegister.class);
                    boolean isExist = applicationContext.containsBean(instruct.getBeanName());
                    if (!isExist) return;
                    Object scheduleBean = applicationContext.getBean(instruct.getBeanName());
                    String path_root_server_ip_clazz_method_status = StrUtil.joinStr(path_root, Constants.Global.LINE, "server", Constants.Global.LINE, instruct.getSchedulerServerId(), Constants.Global.LINE, "ip", LINE, instruct.getIp(), LINE, "clazz", LINE, instruct.getBeanName(), LINE, "method", LINE, instruct.getMethodName(), "/status");
                    //执行命令
                    Integer status = instruct.getStatus();
                    switch (status) {
                        case 0:
                            cronTaskRegistrar.removeCronTask(instruct.getBeanName() + "_" + instruct.getMethodName());
                            setData(client, path_root_server_ip_clazz_method_status, "0");
                            logger.info("itstack middleware schedule task stop {} {}", instruct.getBeanName(), instruct.getMethodName());
                            break;
                        case 1:
                            cronTaskRegistrar.addCronTask(new SchedulingRunnable(scheduleBean, instruct.getBeanName(), instruct.getMethodName()), instruct.getCron());
                            setData(client, path_root_server_ip_clazz_method_status, "1");
                            logger.info("itstack middleware schedule task start {} {}", instruct.getBeanName(), instruct.getMethodName());
                            break;
                        case 2:
                            cronTaskRegistrar.removeCronTask(instruct.getBeanName() + "_" + instruct.getMethodName());
                            cronTaskRegistrar.addCronTask(new SchedulingRunnable(scheduleBean, instruct.getBeanName(), instruct.getMethodName()), instruct.getCron());
                            setData(client, path_root_server_ip_clazz_method_status, "1");
                            logger.info("itstack middleware schedule task refresh {} {}", instruct.getBeanName(), instruct.getMethodName());
                            break;
                    }
                }
                break;
            case NODE_REMOVED:
                break;
            default:
                break;
        }
    });
}

Source File: MqBeanInitRunner.java From paascloud-master with Apache License 2.0

4 votes

private void initConsumerListener(CuratorFramework cf) throws Exception {
	TreeCache treeCache = new TreeCache(cf, GlobalConstant.ZK_REGISTRY_CONSUMER_ROOT_PATH);
	treeCache.getListenable().addListener(consumerChangeListener);
	treeCache.start();
}

Source File: ZKClient.java From mpush with Apache License 2.0

4 votes

private void initLocalCache(String watchRootPath) throws Exception {
    cache = new TreeCache(client, watchRootPath);
    cache.start();
}

Source File: MqBeanInitRunner.java From paascloud-master with Apache License 2.0

4 votes

private void initProducerListener(CuratorFramework cf) throws Exception {
	TreeCache treeCache = new TreeCache(cf, GlobalConstant.ZK_REGISTRY_PRODUCER_ROOT_PATH);
	treeCache.getListenable().addListener(producerChangeListener);
	treeCache.start();
}

Source File: TenantDebugger.java From vespa with Apache License 2.0

4 votes

public TenantDebugger(Curator curator) throws Exception {
    cache = new TreeCache(curator.framework(), "/config/v2/tenants");
    cache.getListenable().addListener(this);
    cache.start();
}

Source File: LogSearchConfigZKHelper.java From ambari-logsearch with Apache License 2.0

2 votes

/**
 * Assign listener to cluster cache and start to use that listener
 * @param clusterCache zookeeper znode cache (cluster)
 * @param listener znode cache listener - trigger on events
 * @throws Exception error during assinging the listener to the cache
 */
public static void addAndStartListenersOnCluster(TreeCache clusterCache, TreeCacheListener listener) throws Exception {
  clusterCache.getListenable().addListener(listener);
  clusterCache.start();
}

Java Code Examples for org.apache.curator.framework.recipes.cache.TreeCache#start()