org.openspaces.grid.gsm.machines.plugins
Class NonBlockingElasticMachineProvisioningAdapter

java.lang.Object
  org.openspaces.grid.gsm.machines.plugins.NonBlockingElasticMachineProvisioningAdapter

All Implemented Interfaces:

NonBlockingElasticMachineProvisioning

public class NonBlockingElasticMachineProvisioningAdapter
extends Object
implements NonBlockingElasticMachineProvisioning

An adapter that wraps an ElasticMachineProvisioning and exposes a NonBlockingElasticMachineProvisioning

Author:

itaif

See Also:

NonBlockingElasticMachineProvisioning, ElasticMachineProvisioning

Constructor Summary

NonBlockingElasticMachineProvisioningAdapter(ProcessingUnit pu, ElasticMachineProvisioning machineProvisioning, ExecutorService executorService, ScheduledThreadPoolExecutor scheduledExecutorService)

Method Summary

ElasticMachineProvisioningConfig	getConfig()
FutureGridServiceAgents	getDiscoveredMachinesAsync(long duration, TimeUnit unit)
boolean	isStartMachineSupported()
FutureGridServiceAgent[]	startMachinesAsync(CapacityRequirements capacityRequirements, long duration, TimeUnit unit) Starts a new machine with a new grid service agent with the specified zone.
void	stopMachineAsync(GridServiceAgent agent, long duration, TimeUnit unit) Shuts down the grid service agent and the machine.

Methods inherited from class java.lang.Object

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

Constructor Detail

NonBlockingElasticMachineProvisioningAdapter

public NonBlockingElasticMachineProvisioningAdapter(ProcessingUnit pu,
                                                    ElasticMachineProvisioning machineProvisioning,
                                                    ExecutorService executorService,
                                                    ScheduledThreadPoolExecutor scheduledExecutorService)

Method Detail

startMachinesAsync

public FutureGridServiceAgent[] startMachinesAsync(CapacityRequirements capacityRequirements,
                                                   long duration,
                                                   TimeUnit unit)

Description copied from interface: NonBlockingElasticMachineProvisioning

Starts a new machine with a new grid service agent with the specified zone. All started machines must have Grid Service Agents with zones as defined by ElasticMachineProvisioningConfig.getGridServiceAgentZones() and ElasticMachineProvisioningConfig.isGridServiceAgentZoneMandatory() This method is non blocking and returns a future object with the new grid service agent.

Specified by:

startMachinesAsync in interface NonBlockingElasticMachineProvisioning

duration - - the maximum duration after which a TimeoutException is raised.

unit - - the time unit for the duration

Returns:

the grid service agent futures

stopMachineAsync

public void stopMachineAsync(GridServiceAgent agent,
                             long duration,
                             TimeUnit unit)

Description copied from interface: NonBlockingElasticMachineProvisioning

Shuts down the grid service agent and the machine. The implementation should be able to close machines that it has not started, but rather an older instance of this object started perhaps with different configuration. This method is non blocking and is idempotent.

Specified by:

stopMachineAsync in interface NonBlockingElasticMachineProvisioning

getDiscoveredMachinesAsync

public FutureGridServiceAgents getDiscoveredMachinesAsync(long duration,
                                                          TimeUnit unit)

Specified by:

getDiscoveredMachinesAsync in interface NonBlockingElasticMachineProvisioning

Parameters:

duration - - the maximum duration after which a TimeoutException is raised.

unit - - the time unit for the duration

Returns:

a future array of grid service agents that reside in the data center (or cloud region) defined in ElasticMachineProvisioningConfig The caller then filters the result using the criteria defined in ElasticMachineProvisioningConfig.getGridServiceAgentZones() , ElasticMachineProvisioningConfig.isGridServiceAgentZoneMandatory() and ElasticMachineProvisioningConfig.isDedicatedManagementMachines() so it is not mandatory for the implementation to do so.

getConfig

public ElasticMachineProvisioningConfig getConfig()

Specified by:

getConfig in interface NonBlockingElasticMachineProvisioning

Returns:

the configuration used by this object

isStartMachineSupported

public boolean isStartMachineSupported()

Specified by:

isStartMachineSupported in interface NonBlockingElasticMachineProvisioning

Returns:

true if this object supports starting and stopping of machines. False indicates that NonBlockingElasticMachineProvisioning.startMachinesAsync(CapacityRequirements, long, TimeUnit) and NonBlockingElasticMachineProvisioning.stopMachineAsync(GridServiceAgent, long, TimeUnit) raise UnsupportedOperationException