Package org.apache.zookeeper.server.controller

Class ControllableConnectionFactory

java.lang.Object

org.apache.zookeeper.server.ServerCnxnFactory

org.apache.zookeeper.server.NIOServerCnxnFactory

org.apache.zookeeper.server.controller.ControllableConnectionFactory

public class ControllableConnectionFactory
extends NIOServerCnxnFactory

Extension of NIOServerCnxnFactory which can inject changes per controller commands. Similar extensions can implement on top of NettyServerCnxnFactory as well.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.zookeeper.server.NIOServerCnxnFactory

NIOServerCnxnFactory.SelectorThread

Field Summary

Fields inherited from class org.apache.zookeeper.server.NIOServerCnxnFactory

maxClientCnxns, workerPool, ZOOKEEPER_NIO_DIRECT_BUFFER_BYTES, ZOOKEEPER_NIO_NUM_SELECTOR_THREADS, ZOOKEEPER_NIO_NUM_WORKER_THREADS, ZOOKEEPER_NIO_SESSIONLESS_CNXN_TIMEOUT, ZOOKEEPER_NIO_SHUTDOWN_TIMEOUT

Fields inherited from class org.apache.zookeeper.server.ServerCnxnFactory

cnxns, login, maxCnxns, saslServerCallbackHandler, secure, zkServer, ZOOKEEPER_MAX_CONNECTION_DEFAULT, ZOOKEEPER_SERVER_CNXN_FACTORY

Constructor Summary

Constructors

Constructor	Description
ControllableConnectionFactory()

Method Summary

Modifier and Type	Method	Description
protected NIOServerCnxn	createConnection(SocketChannel sock, SelectionKey sk, NIOServerCnxnFactory.SelectorThread selectorThread)
void	delayRequestIfNeeded()	Called by the connection to delay processing requests from the client.
void	delayResponses(long delayInMs)
void	failAllFutureRequests()
void	failFutureRequests(long requestsToFail)
void	holdAllFutureResponses()
void	holdFutureResponses(long requestsToHold)
void	resetBadBehavior()
boolean	shouldFailNextRequest()	Check if we should fail the next incoming request.
boolean	shouldSendResponse()	Check if we should send a response to the latest processed request (true), or eat the response to mess with the client (false).

Methods inherited from class org.apache.zookeeper.server.NIOServerCnxnFactory

closeAll, configure, dumpConnections, getAllConnectionInfo, getConnections, getDirectBuffer, getLocalAddress, getLocalPort, getMaxClientCnxnsPerHost, getSocketListenBacklog, join, reconfigure, removeCnxn, resetAllConnectionStats, setMaxClientCnxnsPerHost, shutdown, start, startup, stop, touchCnxn

Methods inherited from class org.apache.zookeeper.server.ServerCnxnFactory

addSession, closeSession, configure, configure, configureSaslLogin, createFactory, createFactory, createFactory, createFactory, createFactory, getMaxCnxns, getNumAliveConnections, getUserName, getZooKeeperServer, initMaxCnxns, isSecure, limitTotalNumberOfCnxns, registerConnection, removeCnxnFromSessionMap, setZooKeeperServer, startup, unregisterConnection

Methods inherited from class java.lang.Object

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

Constructor Detail

ControllableConnectionFactory

public ControllableConnectionFactory()

Method Detail

createConnection

protected NIOServerCnxn createConnection(SocketChannel sock,
                                         SelectionKey sk,
                                         NIOServerCnxnFactory.SelectorThread selectorThread)
                                  throws IOException

Overrides:

createConnection in class NIOServerCnxnFactory

Throws:

IOException

delayRequestIfNeeded

public void delayRequestIfNeeded()

Called by the connection to delay processing requests from the client.

shouldFailNextRequest

public boolean shouldFailNextRequest()

Check if we should fail the next incoming request. If so, decrement the remaining requests to fail.

shouldSendResponse

public boolean shouldSendResponse()

Check if we should send a response to the latest processed request (true), or eat the response to mess with the client (false). If so, decrement the remaining requests to eat.

delayResponses

public void delayResponses(long delayInMs)

resetBadBehavior

public void resetBadBehavior()

failAllFutureRequests

public void failAllFutureRequests()

failFutureRequests

public void failFutureRequests(long requestsToFail)

holdAllFutureResponses

public void holdAllFutureResponses()

holdFutureResponses

public void holdFutureResponses(long requestsToHold)