Package org.apache.pulsar.metadata.coordination.impl

Class CoordinationServiceImpl

java.lang.Object

org.apache.pulsar.metadata.coordination.impl.CoordinationServiceImpl

All Implemented Interfaces:

AutoCloseable, CoordinationService

public class CoordinationServiceImpl
extends Object
implements CoordinationService

Constructor Summary

Constructors

Constructor	Description
CoordinationServiceImpl(MetadataStoreExtended store)

Method Summary

Modifier and Type	Method	Description
void	close()
<T> LeaderElection<T>	getLeaderElection(Class<T> clazz, String path, Consumer<LeaderElectionState> stateChangesListener)	Create a new LeaderElection controller.
<T> LockManager<T>	getLockManager(Class<T> clazz)
<T> LockManager<T>	getLockManager(MetadataSerde<T> serde)
CompletableFuture<Long>	getNextCounterValue(String path)	Increment a counter identified by the specified path and return the current value.

Methods inherited from class java.lang.Object

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

Constructor Details

CoordinationServiceImpl

public CoordinationServiceImpl(MetadataStoreExtended store)

Method Details

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

getLockManager

public <T> LockManager<T> getLockManager(Class<T> clazz)

Specified by:

getLockManager in interface CoordinationService

getLockManager

public <T> LockManager<T> getLockManager(MetadataSerde<T> serde)

Specified by:

getLockManager in interface CoordinationService

getNextCounterValue

public CompletableFuture<Long> getNextCounterValue(String path)

Description copied from interface: CoordinationService

Increment a counter identified by the specified path and return the current value. The counter value will be guaranteed to be unique within the context of the path. It will retry when MetadataStoreException happened. If the maximum number of retries is reached and still failed, the feature will complete with exception MetadataStoreException.

Specified by:

getNextCounterValue in interface CoordinationService

Parameters:

path - the path that identifies a particular counter

Returns:

a future that will track the completion of the operation

getLeaderElection

public <T> LeaderElection<T> getLeaderElection(Class<T> clazz,
 String path,
 Consumer<LeaderElectionState> stateChangesListener)

Description copied from interface: CoordinationService

Create a new LeaderElection controller.

Specified by:

getLeaderElection in interface CoordinationService

Parameters:

clazz - the class type to be used for serialization/deserialization

path - the path to use for the leader election

stateChangesListener - a listener that will be passed all the state changes

Returns: