software.amazon.jdbc.plugin.efm

Class HostMonitorServiceImpl

java.lang.Object

software.amazon.jdbc.plugin.efm.HostMonitorServiceImpl

All Implemented Interfaces:

HostMonitorService

public class HostMonitorServiceImpl
extends java.lang.Object
implements HostMonitorService

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
HostMonitorServiceImpl(@NonNull PluginService pluginService)

Method Summary

Modifier and Type	Method and Description
protected HostMonitor	getMonitor(java.util.Set<java.lang.String> nodeKeys, HostSpec hostSpec, java.util.Properties properties) Get or create a HostMonitorImpl for a server.
void	releaseResources()
HostMonitorConnectionContext	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 HostMonitorConnectionContext context) Stop monitoring for a connection represented by the given HostMonitorConnectionContext.
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

HostMonitorServiceImpl

public HostMonitorServiceImpl(@NonNull PluginService pluginService)

Method Detail

startMonitoring

public HostMonitorConnectionContext 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 HostMonitorService

stopMonitoring

public void stopMonitoring(@NonNull HostMonitorConnectionContext context)

Description copied from interface: HostMonitorService

Stop monitoring for a connection represented by the given HostMonitorConnectionContext. Removes the context from the HostMonitorImpl.

Specified by:

stopMonitoring in interface HostMonitorService

Parameters:

context - The HostMonitorConnectionContext representing a connection.

stopMonitoringForAllConnections

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

Description copied from interface: HostMonitorService

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

Specified by:

stopMonitoringForAllConnections in interface HostMonitorService

Parameters:

nodeKeys - All known references to a server.

releaseResources

public void releaseResources()

Specified by:

releaseResources in interface HostMonitorService

getMonitor

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

Get or create a HostMonitorImpl 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 HostMonitorImpl object associated with a specific server.