com.mysql.cj.jdbc.ha.plugins.efm2

Class DefaultMonitorService

java.lang.Object

com.mysql.cj.jdbc.ha.plugins.efm2.DefaultMonitorService

All Implemented Interfaces:

IMonitorService

public class DefaultMonitorService
extends java.lang.Object
implements IMonitorService

This class handles the creation and clean up of monitoring threads to servers with one or more active connections.

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.concurrent.Executor	ABORT_EXECUTOR
protected static long	CACHE_CLEANUP_NANO
protected Log	logger
protected IMonitorInitializer	monitorInitializer
protected static SlidingExpirationCacheWithCleanupThread<java.lang.String,IMonitor>	monitors

Constructor Summary

Constructors

Constructor and Description
DefaultMonitorService(Log logger)

Method Summary

Modifier and Type	Method and Description
protected IMonitor	getMonitor(HostInfo hostInfo, PropertySet propertySet, int failureDetectionTimeMillis, int failureDetectionIntervalMillis, int failureDetectionCount)
void	releaseResources()
MonitorConnectionContext	startMonitoring(JdbcConnection connectionToAbort, HostInfo hostInfo, PropertySet propertySet, int failureDetectionTimeMillis, int failureDetectionIntervalMillis, int failureDetectionCount)
void	stopMonitoring(@NonNull MonitorConnectionContext context, @NonNull java.sql.Connection connectionToAbort) Stop monitoring for a connection represented by the given MonitorConnectionContext.

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_CLEANUP_NANO

protected static final long CACHE_CLEANUP_NANO

ABORT_EXECUTOR

protected static final java.util.concurrent.Executor ABORT_EXECUTOR

monitors

protected static final SlidingExpirationCacheWithCleanupThread<java.lang.String,IMonitor> monitors

logger

protected final Log logger

monitorInitializer

protected final IMonitorInitializer monitorInitializer

Constructor Detail

DefaultMonitorService

public DefaultMonitorService(Log logger)

Method Detail

startMonitoring

public MonitorConnectionContext startMonitoring(JdbcConnection connectionToAbort,
                                                HostInfo hostInfo,
                                                PropertySet propertySet,
                                                int failureDetectionTimeMillis,
                                                int failureDetectionIntervalMillis,
                                                int failureDetectionCount)

Specified by:

startMonitoring in interface IMonitorService

stopMonitoring

public void stopMonitoring(@NonNull MonitorConnectionContext context,
                           @NonNull java.sql.Connection connectionToAbort)

Description copied from interface: IMonitorService

Stop monitoring for a connection represented by the given MonitorConnectionContext. Removes the context from the IMonitor.

Specified by:

stopMonitoring in interface IMonitorService

Parameters:

context - The MonitorConnectionContext representing a connection.

releaseResources

public void releaseResources()

Specified by:

releaseResources in interface IMonitorService

getMonitor

protected IMonitor getMonitor(HostInfo hostInfo,
                              PropertySet propertySet,
                              int failureDetectionTimeMillis,
                              int failureDetectionIntervalMillis,
                              int failureDetectionCount)