Package io.camunda.zeebe.dynamic.config.changes

Class ConfigurationChangeCoordinatorImpl

java.lang.Object

io.camunda.zeebe.dynamic.config.changes.ConfigurationChangeCoordinatorImpl

All Implemented Interfaces:

ConfigurationChangeCoordinator

public class ConfigurationChangeCoordinatorImpl
extends Object
implements ConfigurationChangeCoordinator

Nested Class Summary

Nested classes/interfaces inherited from interface io.camunda.zeebe.dynamic.config.changes.ConfigurationChangeCoordinator

ConfigurationChangeCoordinator.ConfigurationChangeRequest, ConfigurationChangeCoordinator.ConfigurationChangeResult

Constructor Summary

Constructors

Constructor	Description
ConfigurationChangeCoordinatorImpl(ClusterConfigurationManager clusterTopologyManager, MemberId localMemberId, ConcurrencyControl executor)

Method Summary

Modifier and Type	Method	Description
ActorFuture<ConfigurationChangeCoordinator.ConfigurationChangeResult>	applyOperations(ConfigurationChangeCoordinator.ConfigurationChangeRequest request)	Applies the operations generated by the requestTransformer to the current cluster configuration.
ActorFuture<ClusterConfiguration>	cancelChange(long changeId)	Cancels a configuration change.
ActorFuture<ClusterConfiguration>	getClusterConfiguration()
ActorFuture<ConfigurationChangeCoordinator.ConfigurationChangeResult>	simulateOperations(ConfigurationChangeCoordinator.ConfigurationChangeRequest request)	Simulates the operations generated by the request transformer on the current cluster configuration.

Methods inherited from class java.lang.Object

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

Constructor Details

ConfigurationChangeCoordinatorImpl

public ConfigurationChangeCoordinatorImpl(ClusterConfigurationManager clusterTopologyManager,
 MemberId localMemberId,
 ConcurrencyControl executor)

Method Details

getClusterConfiguration

public ActorFuture<ClusterConfiguration> getClusterConfiguration()

Specified by:

getClusterConfiguration in interface ConfigurationChangeCoordinator

Returns:

the current cluster configuration.

applyOperations

public ActorFuture<ConfigurationChangeCoordinator.ConfigurationChangeResult> applyOperations(ConfigurationChangeCoordinator.ConfigurationChangeRequest request)

Description copied from interface: ConfigurationChangeCoordinator

Applies the operations generated by the requestTransformer to the current cluster configuration. If no operations is returned by requestTransformer, the future completes successfully with no change to the cluster configuration.

Specified by:

applyOperations in interface ConfigurationChangeCoordinator

Parameters:

request - the request transformer that generates the operations to apply

Returns:

a future which is completed when the configuration change has started successfully.

simulateOperations

public ActorFuture<ConfigurationChangeCoordinator.ConfigurationChangeResult> simulateOperations(ConfigurationChangeCoordinator.ConfigurationChangeRequest request)

Description copied from interface: ConfigurationChangeCoordinator

Simulates the operations generated by the request transformer on the current cluster configuration. Operations are not applied and the current cluster configuration remains unchanged.

Specified by:

simulateOperations in interface ConfigurationChangeCoordinator

Parameters:

request - the request transformer that generates the operations to simulate

Returns:

a future which is completed with the results of the simulation or an exception describing why the operations are not valid.

cancelChange

public ActorFuture<ClusterConfiguration> cancelChange(long changeId)

Description copied from interface: ConfigurationChangeCoordinator

Cancels a configuration change. This is an unsafe operation and should be called only when the operation is stuck and cannot make progress on its own. When a change is cancelled, already applied operations are not reverted. So the ClusterConfiguration will be in an intermediate state with partially applied operations.

Specified by:

cancelChange in interface ConfigurationChangeCoordinator

Parameters:

changeId - the id of the change to cancel

Returns:

a future which is completed when the change has been cancelled successfully.