org.apache.storm.utils

Class NimbusClient

java.lang.Object

org.apache.storm.security.auth.ThriftClient

org.apache.storm.utils.NimbusClient

All Implemented Interfaces:

AutoCloseable

public class NimbusClient
extends ThriftClient

Client used for connecting to nimbus. Typically you want to use a variant of the getConfiguredClient static method to get a client to use, as directly putting in a host and port does not support nimbus high availability.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NimbusClient.LocalOverride
static interface	NimbusClient.WithNimbus An interface to allow callbacks with a thrift nimbus client.

Field Summary

Fields

Modifier and Type	Field and Description
boolean	isLocal Indicates if this is a special client that is overwritten for local mode.

Fields inherited from class org.apache.storm.security.auth.ThriftClient

protocol, retryForever

Constructor Summary

Constructors

Constructor and Description
NimbusClient(Map<String,Object> conf, String host) Constructor, Please try to use getConfiguredClient instead of calling this directly.
NimbusClient(Map<String,Object> conf, String host, int port) Deprecated.
NimbusClient(Map<String,Object> conf, String host, Integer port, Integer timeout, String asUser) Constructor, Please try to use getConfiguredClientAs instead of calling this directly.
NimbusClient(Map<String,Object> conf, String host, int port, Integer timeout) Constructor, Please try to use getConfiguredClient instead of calling this directly.

Method Summary

Modifier and Type	Method and Description
Nimbus.Iface	getClient() Get the underlying thrift client.
static NimbusClient	getConfiguredClient(Map<String,Object> conf) Get a nimbus client as configured by conf.
static NimbusClient	getConfiguredClient(Map<String,Object> conf, Integer timeout) Get a nimbus client as configured by conf.
static NimbusClient	getConfiguredClientAs(Map<String,Object> conf, String asUser) Get a nimbus client as configured by conf.
static NimbusClient	getConfiguredClientAs(Map<String,Object> conf, String asUser, Integer timeout) Get a nimbus client as configured by conf.
static boolean	isLocalOverride() Is the local override set or not.
static void	withConfiguredClient(NimbusClient.WithNimbus cb) Execute cb with a configured nimbus client that will be closed once cb returns.
static void	withConfiguredClient(NimbusClient.WithNimbus cb, Map<String,Object> conf) Execute cb with a configured nimbus client that will be closed once cb returns.

Methods inherited from class org.apache.storm.security.auth.ThriftClient

close, reconnect, transport

Methods inherited from class java.lang.Object

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

Field Detail

isLocal

public final boolean isLocal

Indicates if this is a special client that is overwritten for local mode.

Constructor Detail

NimbusClient

@Deprecated
public NimbusClient(Map<String,Object> conf,
                                String host,
                                int port)
                         throws org.apache.storm.thrift.transport.TTransportException

Deprecated.

Constructor, Please try to use getConfiguredClient instead of calling this directly.

Parameters:

conf - the conf for the client.

host - the host the client is to talk to.

port - the port the client is to talk to.

Throws:

org.apache.storm.thrift.transport.TTransportException - on any error.

NimbusClient

public NimbusClient(Map<String,Object> conf,
                    String host,
                    int port,
                    Integer timeout)
             throws org.apache.storm.thrift.transport.TTransportException

Constructor, Please try to use getConfiguredClient instead of calling this directly.

Parameters:

conf - the conf for the client.

host - the host the client is to talk to.

port - the port the client is to talk to.

timeout - the timeout to use when connecting.

Throws:

org.apache.storm.thrift.transport.TTransportException - on any error.

NimbusClient

public NimbusClient(Map<String,Object> conf,
                    String host,
                    Integer port,
                    Integer timeout,
                    String asUser)
             throws org.apache.storm.thrift.transport.TTransportException

Constructor, Please try to use getConfiguredClientAs instead of calling this directly.

Parameters:

conf - the conf for the client.

host - the host the client is to talk to.

port - the port the client is to talk to.

timeout - the timeout to use when connecting.

asUser - the name of the user you want to impersonate (use with caution as it is not always supported).

Throws:

org.apache.storm.thrift.transport.TTransportException - on any error.

NimbusClient

public NimbusClient(Map<String,Object> conf,
                    String host)
             throws org.apache.storm.thrift.transport.TTransportException

Constructor, Please try to use getConfiguredClient instead of calling this directly.

Parameters:

conf - the conf for the client.

host - the host the client is to talk to.

Throws:

org.apache.storm.thrift.transport.TTransportException - on any error.

Method Detail

isLocalOverride

public static boolean isLocalOverride()

Is the local override set or not.

Returns:

true of new clients will be overridden to connect to a local cluster and not the configured remote cluster.

withConfiguredClient

public static void withConfiguredClient(NimbusClient.WithNimbus cb)
                                 throws Exception

Execute cb with a configured nimbus client that will be closed once cb returns.

Parameters:

cb - the callback to send to nimbus.

Throws:

Exception - on any kind of error.

withConfiguredClient

public static void withConfiguredClient(NimbusClient.WithNimbus cb,
                                        Map<String,Object> conf)
                                 throws Exception

Execute cb with a configured nimbus client that will be closed once cb returns.

Parameters:

cb - the callback to send to nimbus.

conf - the conf to use instead of reading the global storm conf.

Throws:

Exception - on any kind of error.

getConfiguredClient

public static NimbusClient getConfiguredClient(Map<String,Object> conf)

Get a nimbus client as configured by conf.

Parameters:

conf - the configuration to use.

Returns:

the client, don’t forget to close it when done.

getConfiguredClient

public static NimbusClient getConfiguredClient(Map<String,Object> conf,
                                               Integer timeout)

Get a nimbus client as configured by conf.

Parameters:

conf - the configuration to use.

timeout - the timeout to use when connecting.

Returns:

the client, don’t forget to close it when done.

getConfiguredClientAs

public static NimbusClient getConfiguredClientAs(Map<String,Object> conf,
                                                 String asUser)

Get a nimbus client as configured by conf.

Parameters:

conf - the configuration to use.

asUser - the user to impersonate (this does not always work).

Returns:

the client, don’t forget to close it when done.

getConfiguredClientAs

public static NimbusClient getConfiguredClientAs(Map<String,Object> conf,
                                                 String asUser,
                                                 Integer timeout)

Get a nimbus client as configured by conf.

Parameters:

conf - the configuration to use.

asUser - the user to impersonate (this does not always work).

timeout - the timeout to use when connecting.

Returns:

the client, don’t forget to close it when done.

getClient

public Nimbus.Iface getClient()

Get the underlying thrift client.

Returns:

the underlying thrift client.