software.amazon.jdbc.plugin.efm

Class HostMonitorImpl

java.lang.Object

software.amazon.jdbc.plugin.efm.HostMonitorImpl

All Implemented Interfaces:

java.lang.Runnable, HostMonitor

public class HostMonitorImpl
extends java.lang.Object
implements HostMonitor

This class uses a background thread to monitor a particular server with one or more active Connection.

Constructor Summary

Constructors

Constructor and Description
HostMonitorImpl(@NonNull PluginService pluginService, @NonNull HostSpec hostSpec, @NonNull java.util.Properties properties, long monitorDisposalTimeMillis, @NonNull HostMonitorThreadContainer threadContainer) Store the monitoring configuration for a connection.

Method Summary

Modifier and Type	Method and Description
void	clearContexts() Clear all HostMonitorConnectionContext associated with this HostMonitor instance.
boolean	isStopped() Whether this HostMonitor has stopped monitoring a particular server.
void	run()
protected void	sleep(long duration) Used to help with testing.
void	startMonitoring(HostMonitorConnectionContext context)
void	stopMonitoring(HostMonitorConnectionContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

HostMonitorImpl

public HostMonitorImpl(@NonNull PluginService pluginService,
                       @NonNull HostSpec hostSpec,
                       @NonNull java.util.Properties properties,
                       long monitorDisposalTimeMillis,
                       @NonNull HostMonitorThreadContainer threadContainer)

Store the monitoring configuration for a connection.

Parameters:

pluginService - A service for creating new connections.

hostSpec - The HostSpec of the server this HostMonitorImpl instance is monitoring.

properties - The Properties containing additional monitoring configuration.

monitorDisposalTimeMillis - Time in milliseconds before stopping the monitoring thread where there are no active connection to the server this HostMonitorImpl instance is monitoring.

threadContainer - A reference to the HostMonitorThreadContainer implementation that initialized this class.

Method Detail

startMonitoring

public void startMonitoring(HostMonitorConnectionContext context)

Specified by:

startMonitoring in interface HostMonitor

stopMonitoring

public void stopMonitoring(HostMonitorConnectionContext context)

Specified by:

stopMonitoring in interface HostMonitor

clearContexts

public void clearContexts()

Description copied from interface: HostMonitor

Clear all HostMonitorConnectionContext associated with this HostMonitor instance.

Specified by:

clearContexts in interface HostMonitor

run

public void run()

Specified by:

run in interface java.lang.Runnable

isStopped

public boolean isStopped()

Description copied from interface: HostMonitor

Whether this HostMonitor has stopped monitoring a particular server.

Specified by:

isStopped in interface HostMonitor

Returns:

true if the monitoring has stopped; false otherwise.

sleep

protected void sleep(long duration)
              throws java.lang.InterruptedException

Used to help with testing.

Parameters:

duration - Duration of sleep in millis.

Throws:

java.lang.InterruptedException - is thread is interrupted