org.apache.flink.queryablestate.server

Class KvStateServerImpl

java.lang.Object

org.apache.flink.queryablestate.network.AbstractServerBase<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

org.apache.flink.queryablestate.server.KvStateServerImpl

All Implemented Interfaces:

org.apache.flink.runtime.query.KvStateServer

@Internal
public class KvStateServerImpl
extends org.apache.flink.queryablestate.network.AbstractServerBase<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>
implements org.apache.flink.runtime.query.KvStateServer

The default implementation of the KvStateServer.

Field Summary

Fields inherited from class org.apache.flink.queryablestate.network.AbstractServerBase

log

Constructor Summary

Constructors

Constructor and Description
KvStateServerImpl(String bindAddress, Iterator<Integer> bindPortIterator, Integer numEventLoopThreads, Integer numQueryThreads, org.apache.flink.runtime.query.KvStateRegistry kvStateRegistry, org.apache.flink.queryablestate.network.stats.KvStateRequestStats stats) Creates the state server.

Method Summary

Modifier and Type	Method and Description
org.apache.flink.queryablestate.network.messages.MessageSerializer<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>	getSerializer()
InetSocketAddress	getServerAddress()
org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>	initializeHandler()
void	shutdown()
void	start()

Methods inherited from class org.apache.flink.queryablestate.network.AbstractServerBase

getQueryExecutor, getServerName, isEventGroupShutdown, shutdownServer

Methods inherited from class java.lang.Object

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

Constructor Detail

KvStateServerImpl

public KvStateServerImpl(String bindAddress,
                         Iterator<Integer> bindPortIterator,
                         Integer numEventLoopThreads,
                         Integer numQueryThreads,
                         org.apache.flink.runtime.query.KvStateRegistry kvStateRegistry,
                         org.apache.flink.queryablestate.network.stats.KvStateRequestStats stats)

Creates the state server.

The server is instantiated using reflection by the QueryableStateUtils.createKvStateServer(InetAddress, Iterator, int, int, KvStateRegistry, KvStateRequestStats).

The server needs to be started via start() in order to bind to the configured bind address.

Parameters:

bindAddress - the address to listen to.

bindPortIterator - the port range to try to bind to.

numEventLoopThreads - number of event loop threads.

numQueryThreads - number of query threads.

kvStateRegistry - KvStateRegistry to query for state instances.

stats - the statistics collector.

Method Detail

initializeHandler

public org.apache.flink.queryablestate.network.AbstractServerHandler<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse> initializeHandler()

Specified by:

initializeHandler in class org.apache.flink.queryablestate.network.AbstractServerBase<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

getSerializer

public org.apache.flink.queryablestate.network.messages.MessageSerializer<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse> getSerializer()

start

public void start()
           throws Throwable

Specified by:

start in interface org.apache.flink.runtime.query.KvStateServer

Overrides:

start in class org.apache.flink.queryablestate.network.AbstractServerBase<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

Throws:

Throwable

getServerAddress

public InetSocketAddress getServerAddress()

Specified by:

getServerAddress in interface org.apache.flink.runtime.query.KvStateServer

Overrides:

getServerAddress in class org.apache.flink.queryablestate.network.AbstractServerBase<KvStateInternalRequest,org.apache.flink.queryablestate.messages.KvStateResponse>

shutdown

public void shutdown()

Specified by:

shutdown in interface org.apache.flink.runtime.query.KvStateServer