org.apache.zookeeper.server

Class NettyServerCnxn

java.lang.Object

org.apache.zookeeper.server.ServerCnxn

org.apache.zookeeper.server.NettyServerCnxn

All Implemented Interfaces:

Watcher

public class NettyServerCnxn
extends ServerCnxn

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	NettyServerCnxn.HandshakeState

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

ServerCnxn.CloseRequestException, ServerCnxn.DisconnectReason, ServerCnxn.EndOfStreamException

Nested classes/interfaces inherited from interface org.apache.zookeeper.Watcher

Watcher.Event, Watcher.WatcherType

Field Summary

Fields

Modifier and Type	Field and Description
int	readIssuedAfterReadComplete

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

count, disconnectReason, established, lastCxid, lastLatency, lastOp, lastResponseTime, lastZxid, maxLatency, me, minLatency, packetsReceived, packetsSent, totalLatency, zooKeeperSaslServer

Method Summary

Modifier and Type	Method and Description
void	close()
void	close(ServerCnxn.DisconnectReason reason) Close the cnxn and remove it from the factory cnxns list.
void	disableRecv(boolean waitDisableRecv) Note that the netty implementation ignores the waitDisableRecv parameter and is always asynchronous.
void	enableRecv()
Certificate[]	getClientCertificateChain()
NettyServerCnxn.HandshakeState	getHandshakeState()
int	getInterestOps()
int	getQueuedReadableBytes()
InetSocketAddress	getRemoteSocketAddress()
long	getSessionId()
int	getSessionTimeout()
boolean	isSecure()
void	process(WatchedEvent event)
void	sendBuffer(ByteBuffer... buffers)
void	sendCloseSession() Send close connection packet to the client.
int	sendResponse(ReplyHeader h, Record r, String tag, String cacheKey, Stat stat, int opCode) Serializes a ZooKeeper response and enqueues it for sending.
protected ServerStats	serverStats()
void	setClientCertificateChain(Certificate[] chain)
void	setHandshakeState(NettyServerCnxn.HandshakeState state)
void	setSessionId(long sessionId)
void	setSessionTimeout(int sessionTimeout)

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

addAuthInfo, cleanupWriterSocket, decrOutstandingAndCheckThrottle, dumpConnectionInfo, getAuthInfo, getAvgLatency, getConnectionInfo, getEstablished, getHostAddress, getLastCxid, getLastLatency, getLastOperation, getLastResponseTime, getLastZxid, getMaxLatency, getMinLatency, getOutstandingRequests, getPacketsReceived, getPacketsSent, getSessionIdHex, incrOutstandingAndCheckThrottle, incrPacketsReceived, incrPacketsSent, isInvalid, isStale, isZKServerRunning, packetReceived, packetSent, removeAuthInfo, resetStats, sendResponse, serialize, serializeRecord, setInvalid, setStale, toString, updateStatsForResponse

Methods inherited from class java.lang.Object

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

Field Detail

readIssuedAfterReadComplete

public int readIssuedAfterReadComplete

Method Detail

close

public void close(ServerCnxn.DisconnectReason reason)

Close the cnxn and remove it from the factory cnxns list.

Specified by:

close in class ServerCnxn

close

public void close()

getSessionId

public long getSessionId()

Specified by:

getSessionId in class ServerCnxn

getSessionTimeout

public int getSessionTimeout()

process

public void process(WatchedEvent event)

Specified by:

process in interface Watcher

Specified by:

process in class ServerCnxn

sendResponse

public int sendResponse(ReplyHeader h,
                        Record r,
                        String tag,
                        String cacheKey,
                        Stat stat,
                        int opCode)
                 throws IOException

Description copied from class: ServerCnxn

Serializes a ZooKeeper response and enqueues it for sending. Serializes client response parts and enqueues them into outgoing queue. If both cache key and last modified zxid are provided, the serialized response is caсhed under the provided key, the last modified zxid is stored along with the value. A cache entry is invalidated if the provided last modified zxid is more recent than the stored one. Attention: this function is not thread safe, due to caching not being thread safe.

Specified by:

sendResponse in class ServerCnxn

Parameters:

h - reply header

r - reply payload, can be null

tag - Jute serialization tag, can be null

cacheKey - Key for caching the serialized payload. A null value prevents caching.

stat - Stat information for the the reply payload, used for cache invalidation. A value of 0 prevents caching.

opCode - The op code appertains to the corresponding request of the response, used to decide which cache (e.g. read response cache, list of children response cache, ...) object to look up to when applicable.

Throws:

IOException

setSessionId

public void setSessionId(long sessionId)

sendBuffer

public void sendBuffer(ByteBuffer... buffers)

disableRecv

public void disableRecv(boolean waitDisableRecv)

Note that the netty implementation ignores the waitDisableRecv parameter and is always asynchronous.

Parameters:

waitDisableRecv - ignored by this implementation.

enableRecv

public void enableRecv()

setSessionTimeout

public void setSessionTimeout(int sessionTimeout)

getInterestOps

public int getInterestOps()

Specified by:

getInterestOps in class ServerCnxn

getRemoteSocketAddress

public InetSocketAddress getRemoteSocketAddress()

Specified by:

getRemoteSocketAddress in class ServerCnxn

sendCloseSession

public void sendCloseSession()

Send close connection packet to the client.

Specified by:

sendCloseSession in class ServerCnxn

serverStats

protected ServerStats serverStats()

Specified by:

serverStats in class ServerCnxn

isSecure

public boolean isSecure()

Specified by:

isSecure in class ServerCnxn

getClientCertificateChain

public Certificate[] getClientCertificateChain()

Specified by:

getClientCertificateChain in class ServerCnxn

setClientCertificateChain

public void setClientCertificateChain(Certificate[] chain)

Specified by:

setClientCertificateChain in class ServerCnxn

getQueuedReadableBytes

public int getQueuedReadableBytes()

setHandshakeState

public void setHandshakeState(NettyServerCnxn.HandshakeState state)

getHandshakeState

public NettyServerCnxn.HandshakeState getHandshakeState()