本文整理了Java中org.apache.samza.zk.ZkUtils.subscribeChildChanges()方法的一些代码示例，展示了ZkUtils.subscribeChildChanges()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZkUtils.subscribeChildChanges()方法的具体详情如下：
包路径：org.apache.samza.zk.ZkUtils
类名称：ZkUtils
方法名：subscribeChildChanges

ZkUtils.subscribeChildChanges介绍

暂无

代码示例

代码示例来源：origin: apache/samza

/**
 * Creates a shared barrier sub-tree in ZK
 *
 * @param version Version associated with the Barrier
 * @param participants List of expected participated for this barrier to complete
 */
public void create(final String version, List<String> participants) {
 LOG.info(String.format("Creating barrier with version: %s, participants: %s.", version, participants));
 String barrierRoot = keyBuilder.getBarrierRoot();
 String barrierParticipantsPath = keyBuilder.getBarrierParticipantsPath(version);
 String barrierStatePath = keyBuilder.getBarrierStatePath(version);
 zkUtils.validatePaths(new String[]{
   barrierRoot,
   keyBuilder.getBarrierPath(version),
   barrierParticipantsPath,
   barrierStatePath});
 LOG.info("Marking the barrier state: {} as {}.", barrierStatePath, State.NEW);
 zkUtils.writeData(barrierStatePath, State.NEW);
 LOG.info("Subscribing child changes on the path: {} for barrier version: {}.", barrierParticipantsPath, version);
 zkUtils.subscribeChildChanges(barrierParticipantsPath, new ZkBarrierChangeHandler(version, participants, zkUtils));
 barrierListenerOptional.ifPresent(zkBarrierListener -> zkBarrierListener.onBarrierCreated(version));
}

代码示例来源：origin: org.apache.samza/samza-core_2.12

/**
 * Creates a shared barrier sub-tree in ZK
 *
 * @param version Version associated with the Barrier
 * @param participants List of expected participated for this barrier to complete
 */
public void create(final String version, List<String> participants) {
 LOG.info(String.format("Creating barrier with version: %s, participants: %s.", version, participants));
 String barrierRoot = keyBuilder.getBarrierRoot();
 String barrierParticipantsPath = keyBuilder.getBarrierParticipantsPath(version);
 String barrierStatePath = keyBuilder.getBarrierStatePath(version);
 zkUtils.validatePaths(new String[]{
   barrierRoot,
   keyBuilder.getBarrierPath(version),
   barrierParticipantsPath,
   barrierStatePath});
 LOG.info("Marking the barrier state: {} as {}.", barrierStatePath, State.NEW);
 zkUtils.writeData(barrierStatePath, State.NEW);
 LOG.info("Subscribing child changes on the path: {} for barrier version: {}.", barrierParticipantsPath, version);
 zkUtils.subscribeChildChanges(barrierParticipantsPath, new ZkBarrierChangeHandler(version, participants, zkUtils));
 barrierListenerOptional.ifPresent(zkBarrierListener -> zkBarrierListener.onBarrierCreated(version));
}

代码示例来源：origin: org.apache.samza/samza-core_2.10

/**
 * Creates a shared barrier sub-tree in ZK
 *
 * @param version Version associated with the Barrier
 * @param participants List of expected participated for this barrier to complete
 */
public void create(final String version, List<String> participants) {
 LOG.info(String.format("Creating barrier with version: %s, participants: %s.", version, participants));
 String barrierRoot = keyBuilder.getBarrierRoot();
 String barrierParticipantsPath = keyBuilder.getBarrierParticipantsPath(version);
 String barrierStatePath = keyBuilder.getBarrierStatePath(version);
 zkUtils.validatePaths(new String[]{
   barrierRoot,
   keyBuilder.getBarrierPath(version),
   barrierParticipantsPath,
   barrierStatePath});
 LOG.info("Marking the barrier state: {} as {}.", barrierStatePath, State.NEW);
 zkUtils.writeData(barrierStatePath, State.NEW);
 LOG.info("Subscribing child changes on the path: {} for barrier version: {}.", barrierParticipantsPath, version);
 zkUtils.subscribeChildChanges(barrierParticipantsPath, new ZkBarrierChangeHandler(version, participants, zkUtils));
 barrierListenerOptional.ifPresent(zkBarrierListener -> zkBarrierListener.onBarrierCreated(version));
}

代码示例来源：origin: org.apache.samza/samza-core

/**
 * Creates a shared barrier sub-tree in ZK
 *
 * @param version Version associated with the Barrier
 * @param participants List of expected participated for this barrier to complete
 */
public void create(final String version, List<String> participants) {
 LOG.info(String.format("Creating barrier with version: %s, participants: %s.", version, participants));
 String barrierRoot = keyBuilder.getBarrierRoot();
 String barrierParticipantsPath = keyBuilder.getBarrierParticipantsPath(version);
 String barrierStatePath = keyBuilder.getBarrierStatePath(version);
 zkUtils.validatePaths(new String[]{
   barrierRoot,
   keyBuilder.getBarrierPath(version),
   barrierParticipantsPath,
   barrierStatePath});
 LOG.info("Marking the barrier state: {} as {}.", barrierStatePath, State.NEW);
 zkUtils.writeData(barrierStatePath, State.NEW);
 LOG.info("Subscribing child changes on the path: {} for barrier version: {}.", barrierParticipantsPath, version);
 zkUtils.subscribeChildChanges(barrierParticipantsPath, new ZkBarrierChangeHandler(version, participants, zkUtils));
 barrierListenerOptional.ifPresent(zkBarrierListener -> zkBarrierListener.onBarrierCreated(version));
}

代码示例来源：origin: org.apache.samza/samza-core_2.11

/**
 * Creates a shared barrier sub-tree in ZK
 *
 * @param version Version associated with the Barrier
 * @param participants List of expected participated for this barrier to complete
 */
public void create(final String version, List<String> participants) {
 LOG.info(String.format("Creating barrier with version: %s, participants: %s.", version, participants));
 String barrierRoot = keyBuilder.getBarrierRoot();
 String barrierParticipantsPath = keyBuilder.getBarrierParticipantsPath(version);
 String barrierStatePath = keyBuilder.getBarrierStatePath(version);
 zkUtils.validatePaths(new String[]{
   barrierRoot,
   keyBuilder.getBarrierPath(version),
   barrierParticipantsPath,
   barrierStatePath});
 LOG.info("Marking the barrier state: {} as {}.", barrierStatePath, State.NEW);
 zkUtils.writeData(barrierStatePath, State.NEW);
 LOG.info("Subscribing child changes on the path: {} for barrier version: {}.", barrierParticipantsPath, version);
 zkUtils.subscribeChildChanges(barrierParticipantsPath, new ZkBarrierChangeHandler(version, participants, zkUtils));
 barrierListenerOptional.ifPresent(zkBarrierListener -> zkBarrierListener.onBarrierCreated(version));
}