Package org.apache.druid.curator

Class DruidConnectionStateListener

  • All Implemented Interfaces:
    org.apache.curator.framework.state.ConnectionStateListener, org.apache.druid.java.util.metrics.Monitor
    public class DruidConnectionStateListener
extends org.apache.druid.java.util.metrics.AbstractMonitor
implements org.apache.curator.framework.state.ConnectionStateListener
    Curator ConnectionStateListener that uses a ServiceEmitter to send alerts on ZK connection loss, and emit metrics about ZK connection status.

    • Constructor Summary

      Constructors 
      Constructor Description
      DruidConnectionStateListener​(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean doMonitor​(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)  
      boolean isConnected()  
      void stateChanged​(org.apache.curator.framework.CuratorFramework curatorFramework, org.apache.curator.framework.state.ConnectionState newState)  

      • Methods inherited from class org.apache.druid.java.util.metrics.AbstractMonitor

        isStarted, monitor, start, stop

      • Methods inherited from interface org.apache.curator.framework.state.ConnectionStateListener

        doNotProxy

    • Constructor Detail

      • DruidConnectionStateListener

        public DruidConnectionStateListener​(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)

    • Method Detail

      • stateChanged

        public void stateChanged​(org.apache.curator.framework.CuratorFramework curatorFramework,
                         org.apache.curator.framework.state.ConnectionState newState)
        Specified by:
        stateChanged in interface org.apache.curator.framework.state.ConnectionStateListener

      • isConnected

        public boolean isConnected()

      • doMonitor

        public boolean doMonitor​(org.apache.druid.java.util.emitter.service.ServiceEmitter emitter)
        Specified by:
        doMonitor in class org.apache.druid.java.util.metrics.AbstractMonitor