com.mysql.cj.jdbc.ha.plugins

Class DefaultMonitorService

java.lang.Object

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

Constructor Summary

Constructors

Constructor and Description
DefaultMonitorService(Log logger)

Method Summary

Modifier and Type	Method and Description
protected IMonitor	getMonitor(java.util.Set<java.lang.String> nodeKeys, HostInfo hostInfo, PropertySet propertySet) Get or create a Monitor for a server.
void	notifyUnused(IMonitor monitor) Handle unused IMonitor.
void	releaseResources()
MonitorConnectionContext	startMonitoring(JdbcConnection connectionToAbort, java.util.Set<java.lang.String> nodeKeys, HostInfo hostInfo, PropertySet propertySet, int failureDetectionTimeMillis, int failureDetectionIntervalMillis, int failureDetectionCount)
void	stopMonitoring(MonitorConnectionContext context) Stop monitoring for a connection represented by the given MonitorConnectionContext.
void	stopMonitoringForAllConnections(java.util.Set<java.lang.String> nodeKeys) Stop monitoring the node for all connections represented by the given set of node keys.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultMonitorService

public DefaultMonitorService(Log logger)

Method Detail

startMonitoring

public MonitorConnectionContext startMonitoring(JdbcConnection connectionToAbort,
                                                java.util.Set<java.lang.String> nodeKeys,
                                                HostInfo hostInfo,
                                                PropertySet propertySet,
                                                int failureDetectionTimeMillis,
                                                int failureDetectionIntervalMillis,
                                                int failureDetectionCount)

Specified by:

startMonitoring in interface IMonitorService

stopMonitoring

public void stopMonitoring(MonitorConnectionContext context)

Description copied from interface: IMonitorService

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

Specified by:

stopMonitoring in interface IMonitorService

Parameters:

context - The MonitorConnectionContext representing a connection.

stopMonitoringForAllConnections

public void stopMonitoringForAllConnections(java.util.Set<java.lang.String> nodeKeys)

Description copied from interface: IMonitorService

Stop monitoring the node for all connections represented by the given set of node keys.

Specified by:

stopMonitoringForAllConnections in interface IMonitorService

Parameters:

nodeKeys - All known references to a server.

releaseResources

public void releaseResources()

Specified by:

releaseResources in interface IMonitorService

notifyUnused

public void notifyUnused(IMonitor monitor)

Description copied from interface: IMonitorService

Handle unused IMonitor.

Specified by:

notifyUnused in interface IMonitorService

Parameters:

monitor - The IMonitor in idle.

getMonitor

protected IMonitor getMonitor(java.util.Set<java.lang.String> nodeKeys,
                              HostInfo hostInfo,
                              PropertySet propertySet)

Get or create a Monitor for a server.

Parameters:

nodeKeys - All references to the server requiring monitoring.

hostInfo - Information such as hostname of the server.

propertySet - The user configuration for the current connection.

Returns:

A Monitor object associated with a specific server.