org.apache.helix.manager.zk.ZkClient.deleteRecursively()方法的使用及代码示例

x33g5p2x  于2022-02-05 转载在 其他  
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本文整理了Java中org.apache.helix.manager.zk.ZkClient.deleteRecursively()方法的一些代码示例,展示了ZkClient.deleteRecursively()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。ZkClient.deleteRecursively()方法的具体详情如下:
包路径:org.apache.helix.manager.zk.ZkClient
类名称:ZkClient
方法名:deleteRecursively

ZkClient.deleteRecursively介绍

暂无

代码示例

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

private void delete(String zkPath) {
 client.deleteRecursively(zkPath);
}

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

public static void dropChildren(ZkClient client, String parentPath, ZNRecord nodeRecord) {
 // TODO: check if parentPath exists
 String id = nodeRecord.getId();
 String temp = parentPath + "/" + id;
 client.deleteRecursively(temp);
}

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

if (recreateIfExists) {
 logger.warn("Root directory exists.Cleaning the root directory:" + root);
 _zkClient.deleteRecursively(root);
} else {
 logger.info("Cluster " + clusterName + " already exists");

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

@Override
public void addStateModelDef(String clusterName, String stateModelDef,
  StateModelDefinition stateModel, boolean recreateIfExists) {
 logger
   .info("Add StateModelDef {} in cluster {} with StateModel {}.", stateModelDef, clusterName,
     stateModel == null ? "NULL" : stateModel.toString());
 if (!ZKUtil.isClusterSetup(clusterName, _zkClient)) {
  throw new HelixException("cluster " + clusterName + " is not setup yet");
 }
 String stateModelDefPath = PropertyPathBuilder.stateModelDef(clusterName);
 String stateModelPath = stateModelDefPath + "/" + stateModelDef;
 if (_zkClient.exists(stateModelPath)) {
  if (recreateIfExists) {
   logger.info(
     "Operation.State Model directory exists:" + stateModelPath + ", remove and recreate.");
   _zkClient.deleteRecursively(stateModelPath);
  } else {
   logger.info("Skip the operation. State Model directory exists:" + stateModelPath);
   return;
  }
 }
 HelixDataAccessor accessor =
   new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
 Builder keyBuilder = accessor.keyBuilder();
 accessor.setProperty(keyBuilder.stateModelDef(stateModelDef), stateModel);
}

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

@Override
public void dropCluster(String clusterName) {
 logger.info("Deleting cluster {}.", clusterName);
 HelixDataAccessor accessor =
   new ZKHelixDataAccessor(clusterName, new ZkBaseDataAccessor<ZNRecord>(_zkClient));
 Builder keyBuilder = accessor.keyBuilder();
 String root = "/" + clusterName;
 if (accessor.getChildNames(keyBuilder.liveInstances()).size() > 0) {
  throw new HelixException(
    "There are still live instances in the cluster, shut them down first.");
 }
 if (accessor.getProperty(keyBuilder.controllerLeader()) != null) {
  throw new HelixException("There are still LEADER in the cluster, shut them down first.");
 }
 _zkClient.deleteRecursively(root);
}

代码示例来源:origin: apache/helix

@Override
public Representation delete() {
 String zkPath = getZKPath();
 try {
  ZkClient zkClient =
    (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
  zkClient.deleteRecursively(zkPath);
  getResponse().setStatus(Status.SUCCESS_OK);
 } catch (Exception e) {
  getResponse().setEntity(ClusterRepresentationUtil.getErrorAsJsonStringFromException(e),
    MediaType.APPLICATION_JSON);
  getResponse().setStatus(Status.SUCCESS_OK);
  LOG.error("Error in delete zkPath: " + zkPath, e);
 }
 return null;
}

代码示例来源:origin: apache/helix

@Override
 public Representation delete() {
  String zkPath = getZKPath();
  try {
   ZkClient zkClient =
     (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);

   List<String> childNames = zkClient.getChildren(zkPath);
   if (childNames != null) {
    for (String childName : childNames) {
     String childPath = zkPath.equals("/") ? "/" + childName : zkPath + "/" + childName;
     zkClient.deleteRecursively(childPath);
    }
   }

   getResponse().setStatus(Status.SUCCESS_OK);
  } catch (Exception e) {
   getResponse().setEntity(ClusterRepresentationUtil.getErrorAsJsonStringFromException(e),
     MediaType.APPLICATION_JSON);
   getResponse().setStatus(Status.SUCCESS_OK);
   LOG.error("Error in delete zkChild: " + zkPath, e);
  }
  return null;
 }
}

代码示例来源:origin: apache/helix

@Override
public Representation post(Representation entity) {
 String zkPath = getZKPath();
 try {
  JsonParameters jsonParameters = new JsonParameters(entity);
  String command = jsonParameters.getCommand();
  ZkClient zkClient =
    (ZkClient) getContext().getAttributes().get(RestAdminApplication.ZKCLIENT);
  if (command.equalsIgnoreCase(JsonParameters.ZK_DELETE_CHILDREN)) {
   List<String> childNames = zkClient.getChildren(zkPath);
   if (childNames != null) {
    for (String childName : childNames) {
     String childPath = zkPath.equals("/") ? "/" + childName : zkPath + "/" + childName;
     zkClient.deleteRecursively(childPath);
    }
   }
  } else {
   throw new HelixException("Unsupported command: " + command + ". Should be one of ["
     + JsonParameters.ZK_DELETE_CHILDREN + "]");
  }
  getResponse().setStatus(Status.SUCCESS_OK);
 } catch (Exception e) {
  getResponse().setEntity(ClusterRepresentationUtil.getErrorAsJsonStringFromException(e),
    MediaType.APPLICATION_JSON);
  getResponse().setStatus(Status.SUCCESS_OK);
  LOG.error("Error in post zkPath: " + zkPath, e);
 }
 return null;
}

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

_zkclient.deleteRecursively(path);

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

@Override
public void dropInstance(String clusterName, InstanceConfig instanceConfig) {
 logger.info("Drop instance {} from cluster {}.", instanceConfig.getInstanceName(), clusterName);
 String instanceName = instanceConfig.getInstanceName();
 String instanceConfigPath = PropertyPathBuilder.instanceConfig(clusterName, instanceName);
 if (!_zkClient.exists(instanceConfigPath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in config for cluster " + clusterName);
 }
 String instancePath = PropertyPathBuilder.instance(clusterName, instanceName);
 if (!_zkClient.exists(instancePath)) {
  throw new HelixException(
    "Node " + instanceName + " does not exist in instances for cluster " + clusterName);
 }
 String liveInstancePath = PropertyPathBuilder.liveInstance(clusterName, instanceName);
 if (_zkClient.exists(liveInstancePath)) {
  throw new HelixException(
    "Node " + instanceName + " is still alive for cluster " + clusterName + ", can't drop.");
 }
 // delete config path
 String instanceConfigsPath = PropertyPathBuilder.instanceConfig(clusterName);
 ZKUtil.dropChildren(_zkClient, instanceConfigsPath, instanceConfig.getRecord());
 // delete instance path
 _zkClient.deleteRecursively(instancePath);
}

代码示例来源:origin: apache/helix

@Test()
void testGetStat() {
 String path = "/tmp/getStatTest";
 _zkClient.deleteRecursively(path);
 Stat stat, newStat;
 stat = _zkClient.getStat(path);
 AssertJUnit.assertNull(stat);
 _zkClient.createPersistent(path, true);
 stat = _zkClient.getStat(path);
 AssertJUnit.assertNotNull(stat);
 newStat = _zkClient.getStat(path);
 AssertJUnit.assertEquals(stat, newStat);
 _zkClient.writeData(path, new ZNRecord("Test"));
 newStat = _zkClient.getStat(path);
 AssertJUnit.assertNotSame(stat, newStat);
}

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