Package com.atlassian.testsupport

Class NonClusterManager

java.lang.Object

com.atlassian.testsupport.NonClusterManager

All Implemented Interfaces:

com.atlassian.beehive.ClusterLockService, ClusterExecutionService, ClusterManager, ClusterManagerInternal

@Internal
public final class NonClusterManager
extends Object
implements ClusterManagerInternal, com.atlassian.beehive.ClusterLockService

An implementation of ClusterManager for use when no clustering is configured. It provides sensible default implementation of some methods where appropriate, emulating a "single node cluster".

Field Summary

Fields inherited from interface com.atlassian.confluence.cluster.ClusterExecutionService

DEFAULT_EXECUTOR_SVC_NAME

Constructor Summary

Constructors

Constructor	Description
NonClusterManager()

Method Summary

Modifier and Type	Method	Description
void	configure(ClusterConfig config)	Set a new cluster configuration.
Collection<ClusterNodeInformation>	getAllNodesInformation()
ClusterInformation	getClusterInformation()	Get information about the running cluster.
ClusterInvariants	getClusterInvariants()	Get all attributes of the server that must be consistent between the nodes of a stable cluster.
long	getClusterUptime()	Gets the amount of time that the cluster has been running.
com.atlassian.beehive.ClusterLock	getLockForName(@NonNull String key)
Map<ClusterNodeInformation,NodeStatus>	getNodeStatusMap()	Gets status information from all members of the cluster.
ClusterNodeInformation	getThisNodeInformation()	Get the identity of this node in the cluster.
void	init()
boolean	isClustered()
boolean	isConfigured()
void	publishEvent(ConfluenceEvent event)	Publish an event as a ClusterEventWrapper to other nodes
void	publishEventImmediately(ConfluenceEvent event)	Publish immediately, an event as a ClusterEventWrapper to other nodes
void	reconfigure(ClusterConfig config)	Set a new cluster configuration and cycle the service
void	shutdown()
void	startCluster()	Start the clustering service
void	stopCluster()	Stop the clustering service
<T> List<ClusterNodeExecution<T>>	submitToAllNodes(Callable<T> task, String serviceName)	Submit a task to be executed on all nodes in the cluster.
<T> CompletionStage<T>	submitToKeyOwner(Callable<T> task, String serviceName, Object key)	Submit a task to be executed by a service given by its name on one node of the cluster that own a given key.
<T> ClusterNodeExecution<T>	submitToNode(String nodeId, Callable<T> task, String serviceName)	Submit a task to be executed on a node with the specified ID

Methods inherited from class java.lang.Object

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

Constructor Details

NonClusterManager

public NonClusterManager()

Method Details

init

public void init()

shutdown

public void shutdown()

configure

public void configure(ClusterConfig config)

Description copied from interface: ClusterManagerInternal

Set a new cluster configuration.

Specified by:

configure in interface ClusterManagerInternal

getClusterInformation

public ClusterInformation getClusterInformation()

Description copied from interface: ClusterManager

Get information about the running cluster.

Specified by:

getClusterInformation in interface ClusterManager

getThisNodeInformation

public ClusterNodeInformation getThisNodeInformation()

Description copied from interface: ClusterManager

Get the identity of this node in the cluster. ClusterNodeInformation implements equals().

Specified by:

getThisNodeInformation in interface ClusterManager

Returns:

the identity of this node in the cluster. May return null if the node is not in a cluster.

getAllNodesInformation

public Collection<ClusterNodeInformation> getAllNodesInformation()

Specified by:

getAllNodesInformation in interface ClusterManager

isClustered

public boolean isClustered()

Specified by:

isClustered in interface ClusterManager

Returns:

true if this instance is configured to allow clustering with other nodes. Note, this does not mean this instance is licensed to cluster.

isConfigured

public boolean isConfigured()

Specified by:

isConfigured in interface ClusterManagerInternal

Returns:

true if ClusterManagerInternal.configure(ClusterConfig) has been called with a valid configuration, otherwise false.

publishEvent

public void publishEvent(ConfluenceEvent event)

Description copied from interface: ClusterManager

Publish an event as a ClusterEventWrapper to other nodes

This waits for any current transaction to be committed successfully before scheduling the event for publishing.

Specified by:

publishEvent in interface ClusterManager

publishEventImmediately

public void publishEventImmediately(ConfluenceEvent event)

Description copied from interface: ClusterManager

Publish immediately, an event as a ClusterEventWrapper to other nodes

This is done immediately regardless of the state of any current transactions.

Specified by:

publishEventImmediately in interface ClusterManager

reconfigure

public void reconfigure(ClusterConfig config)

Description copied from interface: ClusterManagerInternal

Set a new cluster configuration and cycle the service

Specified by:

reconfigure in interface ClusterManagerInternal

startCluster

public void startCluster()

Description copied from interface: ClusterManagerInternal

Start the clustering service

Specified by:

startCluster in interface ClusterManagerInternal

stopCluster

public void stopCluster()

Description copied from interface: ClusterManagerInternal

Stop the clustering service

Specified by:

stopCluster in interface ClusterManagerInternal

getNodeStatusMap

public Map<ClusterNodeInformation,NodeStatus> getNodeStatusMap()

Description copied from interface: ClusterManager

Gets status information from all members of the cluster.

Specified by:

getNodeStatusMap in interface ClusterManager

getClusterInvariants

public ClusterInvariants getClusterInvariants()

Description copied from interface: ClusterManagerInternal

Get all attributes of the server that must be consistent between the nodes of a stable cluster. They are to be retrieved from another member in the cluster. If there are no other members currently active in the cluster, then return null.

Specified by:

getClusterInvariants in interface ClusterManagerInternal

Returns:

the cluster invariants of this server

submitToKeyOwner

public <T> CompletionStage<T> submitToKeyOwner(Callable<T> task,
 String serviceName,
 Object key)

Description copied from interface: ClusterExecutionService

Submit a task to be executed by a service given by its name on one node of the cluster that own a given key.

Specified by:

submitToKeyOwner in interface ClusterExecutionService

Parameters:

task - task to be executed on the node that owns the provided key, it must be Serializable

serviceName - name of service used to execute the task

key - key used to determined which node is going to execute the task, it must be Serializable

Returns:

CompletionStage

submitToNode

public <T> ClusterNodeExecution<T> submitToNode(String nodeId,
 Callable<T> task,
 String serviceName)

Description copied from interface: ClusterExecutionService

Submit a task to be executed on a node with the specified ID

Specified by:

submitToNode in interface ClusterExecutionService

Parameters:

nodeId - ID of the node that should execute the task. If null, task will be executed locally.

task - task to be executed on the specified node

serviceName - name of service used to execute the task

Returns:

node execution result

submitToAllNodes

public <T> List<ClusterNodeExecution<T>> submitToAllNodes(Callable<T> task,
 String serviceName)

Description copied from interface: ClusterExecutionService

Submit a task to be executed on all nodes in the cluster.

Specified by:

submitToAllNodes in interface ClusterExecutionService

Parameters:

task - task to be executed on the node that owns the provided key, it must be Serializable

serviceName - name of service used to execute the task

Returns:

List of ClusterNodeExecution, one element from each node

getClusterUptime

public long getClusterUptime()

Description copied from interface: ClusterManager

Gets the amount of time that the cluster has been running.

Specified by:

getClusterUptime in interface ClusterManager

Returns:

the time in milliseconds since the first node in the cluster came up, or the node uptime if not clustered.

getLockForName

public com.atlassian.beehive.ClusterLock getLockForName(@NonNull String key)

Specified by:

getLockForName in interface com.atlassian.beehive.ClusterLockService