Class DumbWatcher

java.lang.Object
org.apache.zookeeper.server.ServerCnxn
org.apache.zookeeper.server.DumbWatcher
All Implemented Interfaces:
ServerWatcher, Watcher

public class DumbWatcher extends ServerCnxn
A empty watcher implementation used in bench and unit test.
  • Constructor Details

    • DumbWatcher

      public DumbWatcher()
    • DumbWatcher

      public DumbWatcher(long sessionId)
  • Method Details

    • process

      public void process(WatchedEvent event, List<ACL> znodeAcl)
      Specified by:
      process in interface ServerWatcher
      Specified by:
      process in class ServerCnxn
    • getMostRecentPath

      public String getMostRecentPath()
    • getMostRecentEventType

      public Watcher.Event.EventType getMostRecentEventType()
    • getMostRecentZxid

      public long getMostRecentZxid()
    • close

      public void close(ServerCnxn.DisconnectReason reason)
      Specified by:
      close 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
    • sendCloseSession

      public void sendCloseSession()
      Specified by:
      sendCloseSession in class ServerCnxn
    • getSessionId

      public long getSessionId()
      Specified by:
      getSessionId in class ServerCnxn
    • serverStats

      protected ServerStats serverStats()
      Specified by:
      serverStats in class ServerCnxn
    • getOutstandingRequests

      public long getOutstandingRequests()
      Overrides:
      getOutstandingRequests in class ServerCnxn
    • getRemoteSocketAddress

      public InetSocketAddress getRemoteSocketAddress()
      Specified by:
      getRemoteSocketAddress in class ServerCnxn
    • getInterestOps

      public int getInterestOps()
      Specified by:
      getInterestOps 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