io.openmessaging.storage.dledger

Class DLedgerLeaderElector

java.lang.Object

io.openmessaging.storage.dledger.DLedgerLeaderElector

public class DLedgerLeaderElector
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	DLedgerLeaderElector.RoleChangeHandler
class	DLedgerLeaderElector.StateMaintainer

Constructor Summary

Constructors

Constructor and Description
DLedgerLeaderElector(DLedgerConfig dLedgerConfig, MemberState memberState, DLedgerRpcService dLedgerRpcService)

Method Summary

Modifier and Type	Method and Description
void	addRoleChangeHandler(DLedgerLeaderElector.RoleChangeHandler roleChangeHandler)
void	changeRoleToCandidate(long term)
void	changeRoleToFollower(long term, String leaderId)
void	changeRoleToLeader(long term)
CompletableFuture<HeartBeatResponse>	handleHeartBeat(HeartBeatRequest request)
CompletableFuture<LeadershipTransferResponse>	handleLeadershipTransfer(LeadershipTransferRequest request)
CompletableFuture<LeadershipTransferResponse>	handleTakeLeadership(LeadershipTransferRequest request)
CompletableFuture<VoteResponse>	handleVote(VoteRequest request, boolean self)
void	shutdown()
void	startup()
void	testRevote(long term)

Methods inherited from class java.lang.Object

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

Constructor Detail

DLedgerLeaderElector

public DLedgerLeaderElector(DLedgerConfig dLedgerConfig,
                            MemberState memberState,
                            DLedgerRpcService dLedgerRpcService)

Method Detail

startup

public void startup()

shutdown

public void shutdown()

handleHeartBeat

public CompletableFuture<HeartBeatResponse> handleHeartBeat(HeartBeatRequest request)
                                                     throws Exception

Throws:

Exception

changeRoleToLeader

public void changeRoleToLeader(long term)

changeRoleToCandidate

public void changeRoleToCandidate(long term)

testRevote

public void testRevote(long term)

changeRoleToFollower

public void changeRoleToFollower(long term,
                                 String leaderId)

handleVote

public CompletableFuture<VoteResponse> handleVote(VoteRequest request,
                                                  boolean self)

addRoleChangeHandler

public void addRoleChangeHandler(DLedgerLeaderElector.RoleChangeHandler roleChangeHandler)

handleLeadershipTransfer

public CompletableFuture<LeadershipTransferResponse> handleLeadershipTransfer(LeadershipTransferRequest request)
                                                                       throws Exception

Throws:

Exception

handleTakeLeadership

public CompletableFuture<LeadershipTransferResponse> handleTakeLeadership(LeadershipTransferRequest request)
                                                                   throws Exception

Throws:

Exception