software.amazon.jdbc.plugin.efm

Class MonitorServiceImpl

java.lang.Object

software.amazon.jdbc.plugin.efm.MonitorServiceImpl

All Implemented Interfaces:

MonitorService

public class MonitorServiceImpl
extends java.lang.Object
implements MonitorService

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
static AwsWrapperProperty	MONITOR_DISPOSAL_TIME_MS

Constructor Summary

Constructors

Constructor and Description
MonitorServiceImpl(@NonNull PluginService pluginService)

Method Summary

Modifier and Type	Method and Description
protected Monitor	getMonitor(java.util.Set<java.lang.String> nodeKeys, HostSpec hostSpec, java.util.Properties properties) Get or create a MonitorImpl for a server.
void	notifyUnused(Monitor monitor) Handle unused Monitor.
void	releaseResources()
MonitorConnectionContext	startMonitoring(java.sql.Connection connectionToAbort, java.util.Set<java.lang.String> nodeKeys, HostSpec hostSpec, java.util.Properties properties, int failureDetectionTimeMillis, int failureDetectionIntervalMillis, int failureDetectionCount)
void	stopMonitoring(@NonNull MonitorConnectionContext context) Stop monitoring for a connection represented by the given MonitorConnectionContext.
void	stopMonitoringForAllConnections(@NonNull 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

Field Detail

MONITOR_DISPOSAL_TIME_MS

public static final AwsWrapperProperty MONITOR_DISPOSAL_TIME_MS

Constructor Detail

MonitorServiceImpl

public MonitorServiceImpl(@NonNull PluginService pluginService)

Method Detail

startMonitoring

public MonitorConnectionContext startMonitoring(java.sql.Connection connectionToAbort,
                                                java.util.Set<java.lang.String> nodeKeys,
                                                HostSpec hostSpec,
                                                java.util.Properties properties,
                                                int failureDetectionTimeMillis,
                                                int failureDetectionIntervalMillis,
                                                int failureDetectionCount)

Specified by:

startMonitoring in interface MonitorService

stopMonitoring

public void stopMonitoring(@NonNull MonitorConnectionContext context)

Description copied from interface: MonitorService

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

Specified by:

stopMonitoring in interface MonitorService

Parameters:

context - The MonitorConnectionContext representing a connection.

stopMonitoringForAllConnections

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

Description copied from interface: MonitorService

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

Specified by:

stopMonitoringForAllConnections in interface MonitorService

Parameters:

nodeKeys - All known references to a server.

releaseResources

public void releaseResources()

Specified by:

releaseResources in interface MonitorService

notifyUnused

public void notifyUnused(Monitor monitor)

Description copied from interface: MonitorService

Handle unused Monitor.

Specified by:

notifyUnused in interface MonitorService

Parameters:

monitor - The Monitor in idle.

getMonitor

protected Monitor getMonitor(java.util.Set<java.lang.String> nodeKeys,
                             HostSpec hostSpec,
                             java.util.Properties properties)

Get or create a MonitorImpl for a server.

Parameters:

nodeKeys - All references to the server requiring monitoring.

hostSpec - Information such as hostname of the server.

properties - The user configuration for the current connection.

Returns:

A MonitorImpl object associated with a specific server.