Package org.apache.zookeeper.server
Class DumbWatcher
- java.lang.Object
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- org.apache.zookeeper.server.ServerCnxn
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- org.apache.zookeeper.server.DumbWatcher
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- All Implemented Interfaces:
Watcher
public class DumbWatcher extends ServerCnxn
A empty watcher implementation used in bench and unit test.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.zookeeper.server.ServerCnxn
ServerCnxn.CloseRequestException, ServerCnxn.DisconnectReason, ServerCnxn.EndOfStreamException
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Nested classes/interfaces inherited from interface org.apache.zookeeper.Watcher
Watcher.Event, Watcher.WatcherType
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Field Summary
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Fields inherited from class org.apache.zookeeper.server.ServerCnxn
count, disconnectReason, established, lastCxid, lastLatency, lastOp, lastResponseTime, lastZxid, maxLatency, me, minLatency, packetsReceived, packetsSent, requestsProcessedCount, totalLatency, zooKeeperSaslServer
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Constructor Summary
Constructors Constructor Description DumbWatcher()DumbWatcher(long sessionId)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclose(ServerCnxn.DisconnectReason reason)Certificate[]getClientCertificateChain()intgetInterestOps()longgetOutstandingRequests()InetSocketAddressgetRemoteSocketAddress()longgetSessionId()booleanisSecure()voidprocess(WatchedEvent event)voidsendCloseSession()intsendResponse(ReplyHeader h, Record r, String tag, String cacheKey, Stat stat, int opCode)Serializes a ZooKeeper response and enqueues it for sending.protected ServerStatsserverStats()voidsetClientCertificateChain(Certificate[] chain)-
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, getPacketsReceived, getPacketsSent, getSessionIdHex, incrOutstandingAndCheckThrottle, incrPacketsReceived, incrPacketsSent, isInvalid, isStale, isZKServerRunning, packetReceived, packetSent, removeAuthInfo, resetStats, sendResponse, serialize, serializeRecord, setInvalid, setStale, toString, updateStatsForResponse
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Method Detail
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process
public void process(WatchedEvent event)
- Specified by:
processin interfaceWatcher- Specified by:
processin classServerCnxn
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close
public void close(ServerCnxn.DisconnectReason reason)
- Specified by:
closein classServerCnxn
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sendResponse
public int sendResponse(ReplyHeader h, Record r, String tag, String cacheKey, Stat stat, int opCode) throws IOException
Description copied from class:ServerCnxnSerializes 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 caŃhed 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:
sendResponsein classServerCnxn- Parameters:
h- reply headerr- reply payload, can be nulltag- Jute serialization tag, can be nullcacheKey- 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
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sendCloseSession
public void sendCloseSession()
- Specified by:
sendCloseSessionin classServerCnxn
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getSessionId
public long getSessionId()
- Specified by:
getSessionIdin classServerCnxn
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serverStats
protected ServerStats serverStats()
- Specified by:
serverStatsin classServerCnxn
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getOutstandingRequests
public long getOutstandingRequests()
- Overrides:
getOutstandingRequestsin classServerCnxn
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getRemoteSocketAddress
public InetSocketAddress getRemoteSocketAddress()
- Specified by:
getRemoteSocketAddressin classServerCnxn
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getInterestOps
public int getInterestOps()
- Specified by:
getInterestOpsin classServerCnxn
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isSecure
public boolean isSecure()
- Specified by:
isSecurein classServerCnxn
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getClientCertificateChain
public Certificate[] getClientCertificateChain()
- Specified by:
getClientCertificateChainin classServerCnxn
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setClientCertificateChain
public void setClientCertificateChain(Certificate[] chain)
- Specified by:
setClientCertificateChainin classServerCnxn
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