org.openspaces.admin.machine

Interface Machines

All Superinterfaces:

AdminAware, Iterable<Machine>

All Known Subinterfaces:

InternalMachines

All Known Implementing Classes:

DefaultMachines

public interface Machines
extends AdminAware, Iterable<Machine>

Machines hold all the different Machines that are currently discovered.

Provides simple means to get all the current machines, as well as as registering for machine lifecycle (added and removed) events.

Author:

kimchy

Method Summary

Modifier and Type	Method and Description
void	addLifecycleListener(MachineLifecycleEventListener eventListener) Allows to add a MachineLifecycleEventListener.
Map<String,Machine>	getHostsByAddress() Returns a map of machines by host address.
Map<String,Machine>	getHostsByName() Returns a map of machines by host names.
MachineAddedEventManager	getMachineAdded() Returns the machines added event manager allowing to add and remove MachineAddedEventListeners.
Machine	getMachineByHostAddress(String hostAddress) Returns the machine by the host address.
Machine	getMachineByHostName(String hostName) Returns the machine by the host name.
MachineRemovedEventManager	getMachineRemoved() Returns the grid service container added event manager allowing to add and remove MachineRemovedEventListeners.
Machine[]	getMachines() Returns all currently discovered machines.
int	getSize() Returns the number of machines current discovered.
Map<String,Machine>	getUids() Returns a map of machines with the key as the uid.
boolean	isEmpty() Returns true if there are no machines, false otherwise.
void	removeLifeycleListener(MachineLifecycleEventListener eventListener) Allows to remove a MachineLifecycleEventListener.
boolean	waitFor(int numberOfMachines) Waits indefinitely till the provided number of machines are up.
boolean	waitFor(int numberOfMachines, long timeout, TimeUnit timeUnit) Waits for the given timeout (in time unit) till the provided number of machines are up.
Machine	waitFor(String host) Waits indefinitely till the machine with the given host (name/address) is discovered.
Machine	waitFor(String host, long timeout, TimeUnit timeUnit) Waits for the given timeout (in time unit) till the machien with the given host (name/address) is discovered.

Methods inherited from interface org.openspaces.admin.AdminAware

getAdmin

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

getMachines

Machine[] getMachines()

Returns all currently discovered machines.

getMachineByHostAddress

Machine getMachineByHostAddress(String hostAddress)

Returns the machine by the host address.

Parameters:

hostAddress - The host address to lookup the machine by

Returns:

The machine correlated to the specified host address, null if there is no one

getMachineByHostName

Machine getMachineByHostName(String hostName)

Returns the machine by the host name.

getUids

Map<String,Machine> getUids()

Returns a map of machines with the key as the uid.

getHostsByAddress

Map<String,Machine> getHostsByAddress()

Returns a map of machines by host address.

getHostsByName

Map<String,Machine> getHostsByName()

Returns a map of machines by host names.

getSize

int getSize()

Returns the number of machines current discovered.

isEmpty

boolean isEmpty()

Returns true if there are no machines, false otherwise.

waitFor

boolean waitFor(int numberOfMachines)

Waits indefinitely till the provided number of machines are up.

Parameters:

numberOfMachines - The number of containers to wait for

waitFor

boolean waitFor(int numberOfMachines,
                long timeout,
                TimeUnit timeUnit)

Waits for the given timeout (in time unit) till the provided number of machines are up. Returns true if the required number of machines were discovered, false if the timeout expired.

Parameters:

numberOfMachines - The number of containers to wait for

waitFor

Machine waitFor(String host)

Waits indefinitely till the machine with the given host (name/address) is discovered.

Parameters:

host - The machine host name or address

Returns:

The machine discovered

waitFor

Machine waitFor(String host,
                long timeout,
                TimeUnit timeUnit)

Waits for the given timeout (in time unit) till the machien with the given host (name/address) is discovered. Returns the machine if it was discovered within the provided timeout, or null if the machine was not discovered.

Parameters:

host - The machine host name or address

timeout - The timeout value to wait

timeUnit - The time unit of the timeout value

Returns:

The machien discovered, or null if it was not discovered within the provided timeout

getMachineAdded

MachineAddedEventManager getMachineAdded()

Returns the machines added event manager allowing to add and remove MachineAddedEventListeners.

getMachineRemoved

MachineRemovedEventManager getMachineRemoved()

Returns the grid service container added event manager allowing to add and remove MachineRemovedEventListeners.

addLifecycleListener

void addLifecycleListener(MachineLifecycleEventListener eventListener)

Allows to add a MachineLifecycleEventListener.

removeLifeycleListener

void removeLifeycleListener(MachineLifecycleEventListener eventListener)

Allows to remove a MachineLifecycleEventListener.