com.netflix.astyanax.connectionpool.impl

Class Slf4jConnectionPoolMonitorImpl

java.lang.Object

com.netflix.astyanax.connectionpool.impl.CountingConnectionPoolMonitor

com.netflix.astyanax.connectionpool.impl.Slf4jConnectionPoolMonitorImpl

All Implemented Interfaces:

ConnectionPoolMonitor

public class Slf4jConnectionPoolMonitorImpl
extends CountingConnectionPoolMonitor

Impl for CountingConnectionPoolMonitor that does not track any internal state / counters. It simply uses a logger to log out the events. Useful for debugging and basic event tracking.

Constructor Summary

Constructors

Constructor and Description
Slf4jConnectionPoolMonitorImpl()

Method Summary

Methods

Modifier and Type	Method and Description
void	incConnectionClosed(Host host, java.lang.Exception reason) Closed a connection
void	incConnectionCreateFailed(Host host, java.lang.Exception reason) Attempt to create a connection failed
void	incFailover(Host host, java.lang.Exception reason) An operation failed but the connection pool will attempt to fail over to another host/connection.
void	incOperationFailure(Host host, java.lang.Exception reason) Errors trying to execute an operation.
void	onHostAdded(Host host, HostConnectionPool<?> pool) A host was added and given the associated pool.
void	onHostDown(Host host, java.lang.Exception reason) A host was identified as downed.
void	onHostReactivated(Host host, HostConnectionPool<?> pool) A host was reactivated after being marked down
void	onHostRemoved(Host host) A host was removed from the pool.

Methods inherited from class com.netflix.astyanax.connectionpool.impl.CountingConnectionPoolMonitor

getBadRequestCount, getConnectionBorrowedCount, getConnectionClosedCount, getConnectionCreatedCount, getConnectionCreateFailedCount, getConnectionReturnedCount, getFailoverCount, getHostActiveCount, getHostAddedCount, getHostCount, getHostDownCount, getHostReactivatedCount, getHostRemovedCount, getHostStats, getInterruptedCount, getNoHostCount, getNumBusyConnections, getNumOpenConnections, getOperationFailureCount, getOperationSuccessCount, getOperationTimeoutCount, getPoolExhaustedTimeoutCount, getSocketTimeoutCount, getTransportErrorCount, getUnknownErrorCount, incConnectionBorrowed, incConnectionCreated, incConnectionReturned, incOperationSuccess, notFoundCount, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Slf4jConnectionPoolMonitorImpl

public Slf4jConnectionPoolMonitorImpl()

Method Detail

incOperationFailure

public void incOperationFailure(Host host,
                       java.lang.Exception reason)

Description copied from interface: ConnectionPoolMonitor

Errors trying to execute an operation.

Specified by:

incOperationFailure in interface ConnectionPoolMonitor

Overrides:

incOperationFailure in class CountingConnectionPoolMonitor

incConnectionClosed

public void incConnectionClosed(Host host,
                       java.lang.Exception reason)

Description copied from interface: ConnectionPoolMonitor

Closed a connection

Specified by:

incConnectionClosed in interface ConnectionPoolMonitor

Overrides:

incConnectionClosed in class CountingConnectionPoolMonitor

reason - TODO: Make the host available to this

incConnectionCreateFailed

public void incConnectionCreateFailed(Host host,
                             java.lang.Exception reason)

Description copied from interface: ConnectionPoolMonitor

Attempt to create a connection failed

Specified by:

incConnectionCreateFailed in interface ConnectionPoolMonitor

Overrides:

incConnectionCreateFailed in class CountingConnectionPoolMonitor

incFailover

public void incFailover(Host host,
               java.lang.Exception reason)

Description copied from interface: ConnectionPoolMonitor

An operation failed but the connection pool will attempt to fail over to another host/connection.

Specified by:

incFailover in interface ConnectionPoolMonitor

Overrides:

incFailover in class CountingConnectionPoolMonitor

onHostAdded

public void onHostAdded(Host host,
               HostConnectionPool<?> pool)

Description copied from interface: ConnectionPoolMonitor

A host was added and given the associated pool. The pool is immutable and can be used to get info about the number of open connections

Specified by:

onHostAdded in interface ConnectionPoolMonitor

Overrides:

onHostAdded in class CountingConnectionPoolMonitor

onHostRemoved

public void onHostRemoved(Host host)

Description copied from interface: ConnectionPoolMonitor

A host was removed from the pool. This is usually called when a downed host is removed from the ring.

Specified by:

onHostRemoved in interface ConnectionPoolMonitor

Overrides:

onHostRemoved in class CountingConnectionPoolMonitor

onHostDown

public void onHostDown(Host host,
              java.lang.Exception reason)

Description copied from interface: ConnectionPoolMonitor

A host was identified as downed.

Specified by:

onHostDown in interface ConnectionPoolMonitor

Overrides:

onHostDown in class CountingConnectionPoolMonitor

reason - Exception that caused the host to be identified as down

onHostReactivated

public void onHostReactivated(Host host,
                     HostConnectionPool<?> pool)

Description copied from interface: ConnectionPoolMonitor

A host was reactivated after being marked down

Specified by:

onHostReactivated in interface ConnectionPoolMonitor

Overrides:

onHostReactivated in class CountingConnectionPoolMonitor