org.inria.myriads.snoozenode.localcontroller.monitoring.service

Class VirtualMachineMonitoringService

java.lang.Object

org.inria.myriads.snoozenode.localcontroller.monitoring.service.VirtualMachineMonitoringService

All Implemented Interfaces:

VirtualMachineMonitoringListener

public final class VirtualMachineMonitoringService
extends Object
implements VirtualMachineMonitoringListener

Virtual machine monitoring service.

Author:

Eugen Feller

Constructor Summary

Constructors

Constructor and Description
VirtualMachineMonitoringService(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController, LocalControllerRepository repository, InfrastructureMonitoring monitoring, DatabaseSettings databaseSettings) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
int	getNumberOfActiveVirtualMachines() Returns the amount of active virtual machines.
boolean	onMonitoringFailure(org.inria.myriads.snoozecommon.communication.virtualcluster.submission.VirtualMachineLocation location) Drops virtual machine meta data.
boolean	restart(String virtualMachineId) Restarts the monitoring.
boolean	resume(String virtualMachineId) Wakes up monitoring of a virtual machine.
boolean	start(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachineMetaData) Start monitoring of a virtual machine.
void	startService(org.inria.myriads.snoozecommon.communication.NetworkAddress groupManagerAddress) Starts the virtual machine monitor service.
boolean	stop(String virtualMachineId) Stops monitoring of a virtual machine.
void	stopService() Stops the service.
boolean	suspend(String virtualMachineId) Halts the monitoring of a virtual machine.

Methods inherited from class java.lang.Object

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

Constructor Detail

VirtualMachineMonitoringService

public VirtualMachineMonitoringService(org.inria.myriads.snoozecommon.communication.localcontroller.LocalControllerDescription localController,
                               LocalControllerRepository repository,
                               InfrastructureMonitoring monitoring,
                               DatabaseSettings databaseSettings)

Constructor.

Parameters:

localController - The local controller description

repository - The local controller repository

monitoring - The infrastructure monitoring

databaseSettings - The database settings

Method Detail

startService

public void startService(org.inria.myriads.snoozecommon.communication.NetworkAddress groupManagerAddress)
                  throws Exception

Starts the virtual machine monitor service.

Parameters:

groupManagerAddress - The group manager address

Throws:

Exception - The exception

start

public boolean start(org.inria.myriads.snoozecommon.communication.virtualcluster.VirtualMachineMetaData virtualMachineMetaData)

Start monitoring of a virtual machine.

Parameters:

virtualMachineMetaData - The virtual machine identifier

Returns:

true if added, false otherwise

suspend

public boolean suspend(String virtualMachineId)

Halts the monitoring of a virtual machine.

Parameters:

virtualMachineId - The virtual machine identifier

Returns:

true if everything ok, false otherwise

resume

public boolean resume(String virtualMachineId)

Wakes up monitoring of a virtual machine.

Parameters:

virtualMachineId - The virtual machine identifier

Returns:

true if everyhting ok, false otherwise

stop

public boolean stop(String virtualMachineId)

Stops monitoring of a virtual machine.

Parameters:

virtualMachineId - The virtual machine identifier

Returns:

true if everyhting ok, false otherwise

stopService

public void stopService()
                 throws InterruptedException

Stops the service.

Throws:

InterruptedException

restart

public boolean restart(String virtualMachineId)

Restarts the monitoring.

Parameters:

virtualMachineId - The virtual machine identifier

Returns:

true if everything ok, false otherwise

getNumberOfActiveVirtualMachines

public int getNumberOfActiveVirtualMachines()

Returns the amount of active virtual machines.

Specified by:

getNumberOfActiveVirtualMachines in interface VirtualMachineMonitoringListener

Returns:

The amount of active VMs

onMonitoringFailure

public boolean onMonitoringFailure(org.inria.myriads.snoozecommon.communication.virtualcluster.submission.VirtualMachineLocation location)

Drops virtual machine meta data.

Specified by:

onMonitoringFailure in interface VirtualMachineMonitoringListener

Parameters:

location - The virtual machine location

Returns:

true if everything ok, false otherwise