org.apache.hadoop.registry.client.impl
Class RegistryOperationsClient

java.lang.Object
  org.apache.hadoop.service.AbstractService
      org.apache.hadoop.service.CompositeService
          org.apache.hadoop.registry.client.impl.zk.CuratorService
              org.apache.hadoop.registry.client.impl.zk.RegistryOperationsService
                  org.apache.hadoop.registry.client.impl.RegistryOperationsClient

All Implemented Interfaces:

Closeable, RegistryConstants, RegistryOperations, RegistryBindingSource, Service

@InterfaceAudience.Public
@InterfaceStability.Evolving
public class RegistryOperationsClient
extends RegistryOperationsService

This is the client service for applications to work with the registry. It does not set up the root paths for the registry, is bonded to a user, and can be set to use SASL, anonymous or id:pass auth. For SASL, the client must be operating in the context of an authed user. For id:pass the client must have the relevant id & password, SASL is not used even if the client has credentials. For anonymous, nothing is used. Any SASL-authed client also has the ability to add one or more authentication id:pass pair on all future writes, and to reset them later.

Field Summary

Fields inherited from class org.apache.hadoop.service.CompositeService

STOP_ONLY_STARTED_SERVICES

Fields inherited from interface org.apache.hadoop.registry.client.api.RegistryConstants

DEFAULT_REGISTRY_CLIENT_JAAS_CONTEXT, DEFAULT_REGISTRY_ENABLED, DEFAULT_REGISTRY_SECURE, DEFAULT_REGISTRY_SYSTEM_ACCOUNTS, DEFAULT_REGISTRY_USER_ACCOUNTS, DEFAULT_REGISTRY_ZK_QUORUM, DEFAULT_ZK_CONNECTION_TIMEOUT, DEFAULT_ZK_REGISTRY_ROOT, DEFAULT_ZK_RETRY_CEILING, DEFAULT_ZK_RETRY_INTERVAL, DEFAULT_ZK_RETRY_TIMES, DEFAULT_ZK_SESSION_TIMEOUT, KEY_REGISTRY_CLIENT_AUTH, KEY_REGISTRY_CLIENT_AUTHENTICATION_ID, KEY_REGISTRY_CLIENT_AUTHENTICATION_PASSWORD, KEY_REGISTRY_CLIENT_JAAS_CONTEXT, KEY_REGISTRY_ENABLED, KEY_REGISTRY_KERBEROS_REALM, KEY_REGISTRY_SECURE, KEY_REGISTRY_SYSTEM_ACCOUNTS, KEY_REGISTRY_USER_ACCOUNTS, KEY_REGISTRY_ZK_CONNECTION_TIMEOUT, KEY_REGISTRY_ZK_QUORUM, KEY_REGISTRY_ZK_RETRY_CEILING, KEY_REGISTRY_ZK_RETRY_INTERVAL, KEY_REGISTRY_ZK_RETRY_TIMES, KEY_REGISTRY_ZK_ROOT, KEY_REGISTRY_ZK_SESSION_TIMEOUT, PATH_SYSTEM_SERVICES, PATH_USER_SERVICES, PATH_USERS, REGISTRY_CLIENT_AUTH_ANONYMOUS, REGISTRY_CLIENT_AUTH_DIGEST, REGISTRY_CLIENT_AUTH_KERBEROS, REGISTRY_PREFIX, SUBPATH_COMPONENTS, ZK_PREFIX

Constructor Summary

RegistryOperationsClient(String name)

RegistryOperationsClient(String name, RegistryBindingSource bindingSource)

Method Summary

Methods inherited from class org.apache.hadoop.registry.client.impl.zk.RegistryOperationsService

bind, delete, exists, getClientAcls, list, mknode, resolve, stat, validatePath

Methods inherited from class org.apache.hadoop.registry.client.impl.zk.CuratorService

addWriteAccessor, bindingDiagnosticDetails, buildConnectionString, buildSecurityDiagnostics, clearWriteAccessors, createEnsembleProvider, createFullPath, dumpPath, dumpRegistryRobustly, getBindingSource, getRegistrySecurity, isSecure, maybeCreate, operationFailure, operationFailure, serviceInit, serviceStart, serviceStop, supplyBindingInformation, toString, zkCreate, zkDelete, zkGetACLS, zkList, zkMkParentPath, zkMkPath, zkPathExists, zkPathMustExist, zkRead, zkSet, zkStat, zkUpdate

Methods inherited from class org.apache.hadoop.service.CompositeService

addIfService, addService, getServices, removeService

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.hadoop.registry.client.api.RegistryOperations

addWriteAccessor, clearWriteAccessors

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

Constructor Detail

RegistryOperationsClient

public RegistryOperationsClient(String name)

RegistryOperationsClient

public RegistryOperationsClient(String name,
                                RegistryBindingSource bindingSource)