org.apache.storm.messaging.local

Class Context

java.lang.Object

org.apache.storm.messaging.local.Context

All Implemented Interfaces:

IContext

public class Context
extends Object
implements IContext

Constructor Summary

Constructors

Constructor and Description
Context()

Method Summary

Modifier and Type	Method and Description
IConnection	bind(String stormId, int port, IConnectionCallback cb, Supplier<Object> newConnectionResponse) This method establishes a server side connection.
IConnection	connect(String stormId, String host, int port, AtomicBoolean[] remoteBpStatus) This method establish a client side connection to a remote server implementation should return a new connection every call.
void	prepare(Map<String,Object> topoConf) This method is invoked at the startup of messaging plugin.
void	term() This method is invoked when a worker is unloading a messaging plugin.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.storm.messaging.IContext

prepare

Constructor Detail

Context

public Context()

Method Detail

prepare

public void prepare(Map<String,Object> topoConf)

Description copied from interface: IContext

This method is invoked at the startup of messaging plugin.

Specified by:

prepare in interface IContext

Parameters:

topoConf - storm configuration

bind

public IConnection bind(String stormId,
                        int port,
                        IConnectionCallback cb,
                        Supplier<Object> newConnectionResponse)

Description copied from interface: IContext

This method establishes a server side connection.

Specified by:

bind in interface IContext

Parameters:

stormId - topology ID

port - port #

cb - The callback to deliver received messages to

newConnectionResponse - Supplier of the initial message to send to new client connections. If authentication is required, the message will be sent after authentication is complete.

Returns:

server side connection

connect

public IConnection connect(String stormId,
                           String host,
                           int port,
                           AtomicBoolean[] remoteBpStatus)

Description copied from interface: IContext

This method establish a client side connection to a remote server implementation should return a new connection every call.

Specified by:

connect in interface IContext

Parameters:

stormId - topology ID

host - remote host

port - remote port

remoteBpStatus - array of booleans reflecting Back Pressure status of remote tasks.

Returns:

client side connection

term

public void term()

Description copied from interface: IContext

This method is invoked when a worker is unloading a messaging plugin.

Specified by:

term in interface IContext