hydra.blackboard

Class Blackboard

java.lang.Object

hydra.blackboard.Blackboard

Direct Known Subclasses:

AdminBB, AgentBlackboard, AsyncMsgBB, BackwardCompatibilityBB, BB, BBoard, BridgeBlackboard, BridgeNotifyBB, CacheBB, CachePerfBlackboard, CacheServerBlackboard, CapConBB, CliBB, CLIBlackboard, CommandBB, CompressionBB, ConcCQBB, ConflationBlackboard, ConflictedOpsBB, ConnPoolBB, ControllerBB, CQUtilBB, DeltaGIIBB, DeltaPropagationBB, DiskBB, DiskRegBB, DistBlackboard, DistributedLockBlackboard, DistributedSystemBlackboard, DLockBlackboard, DUnitBB, DurableClientsBB, DynamicDiscoveryBB, DynamicRegionBB, EdgeBlackboard, EndTaskEventCounters1BB, EndTaskEventCounters2BB, EndTaskEventCounters3BB, EndTaskEventCounters4BB, EndTaskEventCounters5BB, EndTaskEventCounters6BB, EntryEventBB, EventBB, EventCounters1BB, EventCounters2BB, EventCounters3BB, EventCounters4BB, EventCounters5BB, EventCounters6BB, EventCountersBB, EventListenersBlackboard, EvictionBB, ExecuteExceptionBB, ExpirationBB, FederationBlackboard, FixedPartitionBlackboard, FlashcacheBB, GatewayHubBlackboard, HAClientQueueBB, HDFSBlackboard, HDFSUtilBB, HydraTestBlackboard, IdleTODestroyBB, IdleTOInvalBB, IdleTOLocalDestroyBB, IdleTOLocalInvalBB, IndexBB, InitImageBB, JMXBlackboard, JMXManagerBlackboard, JtaBB, ListenerBB, ListenerBB, ListenerBB, LocatorBlackboard, LogCheckerBB, MapBB, MembershipBB, MemScaleBB, MirrorBB, MixedRegionBB, MLRioBB, NameBB, NBSTestBB, NewWanPerfBlackboard, OffHeapMemoryLifecycleBB, OperationCountersBB, OperationsBlackboard, OrderPolicyBB, ParRegBB, ParRegExpirationBB, ParRegQueryBB, PdxBB, PersistenceBB, PortBlackboard, PRObserverBB, PrTxBB, PrTxQueryBB, QueryBB, QueryBB, QueryFunctionContextBB, QueryObjectBB, RBQBlackboard, RebalanceBB, RebalanceEventCountersBB, RebootBlackboard, RecovDelayBB, RecoveryBB, RecycleSysBlackboard, RegionDefBB, ResourceManBB, ResumeTxBB, RolesBB, RollingUpgradeBB, SampleBlackboard, SecurityClientBB, SilenceListenerBB, SimpleBlackboard, SnapshotBB, SnapshotBlackboard, SplitBrainBB, StatTasksBB, StopStartBB, SustainabilityBB, SwarmBB, TargetBB, TaskSyncBlackboard, TaskSyncBlackboard, TTLDestroyBB, TTLInvalBB, TTLLocalDestroyBB, TTLLocalInvalBB, TxBB, TxEventCountersBB, TxWriterCountersBB, UseCase13BB, UseCase1BB, ValidateBlackboard, VersionBB, VMotionBB, WANBlackboard, WANBlackboard, WANOperationsClientBB, WANRecoveryBB, WBCLEventBB, WBCLTestBB, WriterCountersBB

public abstract class Blackboard
extends Object

A class used for communication between vms.

Field Summary

Fields

Modifier and Type	Field and Description
protected String[]	counterNames
static int	GemFire
static int	RMI

Constructor Summary

Constructors

Constructor and Description
Blackboard()
Blackboard(String name, int type, Class cls) Creates an empty blackboard with the specified name and transport type ("RMI" or "GemFire").
Blackboard(String name, String type, Class cls) Creates an empty blackboard with the specified name and transport type ("RMI" or "GemFire").

Method Summary

Modifier and Type	Method and Description
SharedCounters	createSharedCounters(String name, String type, String[] cnames, long[] cvals) Creates a fixed number of shared counters and stores them in a location appropriate to the blackboard's transport type (rmiregistry for RMI and namespace for GemFire).
SharedLock	createSharedLock(String name, String type) Creates the shared lock and stores it in a location appropriate to the blackboard's transport type (rmiregistry for RMI).
SharedMap	createSharedMap(String name, String type) Creates an empty shared map and stores it in a location appropriate to the blackboard's transport type (rmiregistry for RMI and namespace for GemFire).
String[]	getCounterNames() Returns an array of shared counter names for this blackboard.
int	getSharedCounter(String sharedCounterName) Returns the index of the sharedCounter for the given shared counter name.
SharedCounters	getSharedCounters() Gets the shared counters associated with this blackboard.
SharedLock	getSharedLock() Gets the shared lock associated with this blackboard.
SharedMap	getSharedMap() Gets the shared map associated with this blackboard.
void	print() Prints the contents of the blackboard.
void	printSharedCounters() Prints the contents of the shared counters using the "info" log level.
void	printSharedMap() Prints the contents of the shared map.

Methods inherited from class java.lang.Object

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

Field Detail

RMI

public static final int RMI

See Also:

Constant Field Values

GemFire

public static final int GemFire

See Also:

Constant Field Values

counterNames

protected String[] counterNames

Constructor Detail

Blackboard

public Blackboard()

Blackboard

public Blackboard(String name,
                  String type,
                  Class cls)

Creates an empty blackboard with the specified name and transport type ("RMI" or "GemFire").

Parameters:

name - the name of the blackboard.

type - the transport type of the blackboard.

cls - The class from which counter information is extracted

Throws:

IllegalArgumentException - if the type is invalid.

Blackboard

public Blackboard(String name,
                  int type,
                  Class cls)

Creates an empty blackboard with the specified name and transport type ("RMI" or "GemFire").

Parameters:

name - the name of the blackboard.

type - the transport type of the blackboard.

cls - The class from which counter information is extracted

Throws:

IllegalArgumentException - if the type is invalid.

Since:

3.5

Method Detail

createSharedCounters

public SharedCounters createSharedCounters(String name,
                                           String type,
                                           String[] cnames,
                                           long[] cvals)

Creates a fixed number of shared counters and stores them in a location appropriate to the blackboard's transport type (rmiregistry for RMI and namespace for GemFire).

Parameters:

name - the blackboard name.

type - the transport type.

cnames - The names of the shared counters

cvals - The initial value of the shared counters

getSharedCounters

public SharedCounters getSharedCounters()

Gets the shared counters associated with this blackboard. Lazily creates them.

Returns:

the shared counters.

getSharedCounter

public int getSharedCounter(String sharedCounterName)

Returns the index of the sharedCounter for the given shared counter name.

Parameters:

sharedCounterName - - the name of the shared counter.

Returns:

The index for the sharedCounter with name sharedCounterName.

printSharedCounters

public void printSharedCounters()

Prints the contents of the shared counters using the "info" log level.

createSharedMap

public SharedMap createSharedMap(String name,
                                 String type)

Creates an empty shared map and stores it in a location appropriate to the blackboard's transport type (rmiregistry for RMI and namespace for GemFire).

Parameters:

name - the blackboard name.

type - the transport type.

print

public void print()

Prints the contents of the blackboard.

getSharedMap

public SharedMap getSharedMap()

Gets the shared map associated with this blackboard. Lazily creates it.

Returns:

the shared map.

printSharedMap

public void printSharedMap()

Prints the contents of the shared map. Uses the "info" log level.

getCounterNames

public String[] getCounterNames()

Returns an array of shared counter names for this blackboard.

createSharedLock

public SharedLock createSharedLock(String name,
                                   String type)

Creates the shared lock and stores it in a location appropriate to the blackboard's transport type (rmiregistry for RMI).

Parameters:

name - the blackboard name.

type - the transport type.

getSharedLock

public SharedLock getSharedLock()

Gets the shared lock associated with this blackboard. Lazily creates it.

Returns:

the shared lock.