io.openmessaging.storage.dledger

Class DLedgerRpcNettyService

java.lang.Object

io.openmessaging.storage.dledger.DLedgerRpcService

io.openmessaging.storage.dledger.DLedgerRpcNettyService

All Implemented Interfaces:

DLedgerClientProtocol, DLedgerClientProtocolHandler, DLedgerProtocol, DLedgerProtocolHandler

public class DLedgerRpcNettyService
extends DLedgerRpcService

A netty implementation of DLedgerRpcService. It should be bi-directional, which means it implements both DLedgerProtocol and DLedgerProtocolHandler.

Constructor Summary

Constructors

Constructor and Description
DLedgerRpcNettyService(AbstractDLedgerServer dLedger)
DLedgerRpcNettyService(AbstractDLedgerServer dLedger, org.apache.rocketmq.remoting.netty.NettyServerConfig nettyServerConfig, org.apache.rocketmq.remoting.netty.NettyClientConfig nettyClientConfig)
DLedgerRpcNettyService(AbstractDLedgerServer dLedger, org.apache.rocketmq.remoting.netty.NettyServerConfig nettyServerConfig, org.apache.rocketmq.remoting.netty.NettyClientConfig nettyClientConfig, org.apache.rocketmq.remoting.ChannelEventListener channelEventListener)

Method Summary

Modifier and Type	Method and Description
CompletableFuture<AppendEntryResponse>	append(AppendEntryRequest request)
CompletableFuture<GetEntriesResponse>	get(GetEntriesRequest request)
org.apache.rocketmq.remoting.netty.NettyRemotingClient	getRemotingClient()
org.apache.rocketmq.remoting.netty.NettyRemotingServer	getRemotingServer()
CompletableFuture<AppendEntryResponse>	handleAppend(AppendEntryRequest request)
CompletableFuture<GetEntriesResponse>	handleGet(GetEntriesRequest request)
CompletableFuture<HeartBeatResponse>	handleHeartBeat(HeartBeatRequest request)
CompletableFuture<LeadershipTransferResponse>	handleLeadershipTransfer(LeadershipTransferRequest leadershipTransferRequest)
CompletableFuture<MetadataResponse>	handleMetadata(MetadataRequest request)
CompletableFuture<PullEntriesResponse>	handlePull(PullEntriesRequest request)
CompletableFuture<PushEntryResponse>	handlePush(PushEntryRequest request)
org.apache.rocketmq.remoting.protocol.RemotingCommand	handleResponse(RequestOrResponse response, org.apache.rocketmq.remoting.protocol.RemotingCommand request)
CompletableFuture<VoteResponse>	handleVote(VoteRequest request)
CompletableFuture<HeartBeatResponse>	heartBeat(HeartBeatRequest request)
CompletableFuture<LeadershipTransferResponse>	leadershipTransfer(LeadershipTransferRequest request)
CompletableFuture<MetadataResponse>	metadata(MetadataRequest request)
org.apache.rocketmq.remoting.protocol.RemotingCommand	processRequest(io.netty.channel.ChannelHandlerContext ctx, org.apache.rocketmq.remoting.protocol.RemotingCommand request) The core method to handle rpc requests.
CompletableFuture<PullEntriesResponse>	pull(PullEntriesRequest request)
CompletableFuture<PushEntryResponse>	push(PushEntryRequest request)
void	setDLedger(AbstractDLedgerServer dLedger)
void	shutdown()
void	startup()
CompletableFuture<VoteResponse>	vote(VoteRequest request)

Methods inherited from class java.lang.Object

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

Constructor Detail

DLedgerRpcNettyService

public DLedgerRpcNettyService(AbstractDLedgerServer dLedger)

DLedgerRpcNettyService

public DLedgerRpcNettyService(AbstractDLedgerServer dLedger,
                              org.apache.rocketmq.remoting.netty.NettyServerConfig nettyServerConfig,
                              org.apache.rocketmq.remoting.netty.NettyClientConfig nettyClientConfig)

DLedgerRpcNettyService

public DLedgerRpcNettyService(AbstractDLedgerServer dLedger,
                              org.apache.rocketmq.remoting.netty.NettyServerConfig nettyServerConfig,
                              org.apache.rocketmq.remoting.netty.NettyClientConfig nettyClientConfig,
                              org.apache.rocketmq.remoting.ChannelEventListener channelEventListener)

Method Detail

heartBeat

public CompletableFuture<HeartBeatResponse> heartBeat(HeartBeatRequest request)

vote

public CompletableFuture<VoteResponse> vote(VoteRequest request)

get

public CompletableFuture<GetEntriesResponse> get(GetEntriesRequest request)
                                          throws Exception

Throws:

Exception

append

public CompletableFuture<AppendEntryResponse> append(AppendEntryRequest request)
                                              throws Exception

Throws:

Exception

metadata

public CompletableFuture<MetadataResponse> metadata(MetadataRequest request)
                                             throws Exception

Throws:

Exception

pull

public CompletableFuture<PullEntriesResponse> pull(PullEntriesRequest request)
                                            throws Exception

Throws:

Exception

push

public CompletableFuture<PushEntryResponse> push(PushEntryRequest request)
                                          throws Exception

Throws:

Exception

leadershipTransfer

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

Throws:

Exception

processRequest

public org.apache.rocketmq.remoting.protocol.RemotingCommand processRequest(io.netty.channel.ChannelHandlerContext ctx,
                                                                            org.apache.rocketmq.remoting.protocol.RemotingCommand request)
                                                                     throws Exception

The core method to handle rpc requests. The advantages of using future instead of callback:

1. separate the caller from actual executor, which make it able to handle the future results by the caller's wish 2. simplify the later execution method

CompletableFuture is an excellent choice, whenCompleteAsync will handle the response asynchronously. With an independent thread-pool, it will improve performance and reduce blocking points.

Parameters:

ctx -

request -

Returns:

Throws:

Exception

handleLeadershipTransfer

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

Throws:

Exception

handleHeartBeat

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

Throws:

Exception

handleVote

public CompletableFuture<VoteResponse> handleVote(VoteRequest request)
                                           throws Exception

Throws:

Exception

handleAppend

public CompletableFuture<AppendEntryResponse> handleAppend(AppendEntryRequest request)
                                                    throws Exception

Throws:

Exception

handleGet

public CompletableFuture<GetEntriesResponse> handleGet(GetEntriesRequest request)
                                                throws Exception

Throws:

Exception

handleMetadata

public CompletableFuture<MetadataResponse> handleMetadata(MetadataRequest request)
                                                   throws Exception

Throws:

Exception

handlePull

public CompletableFuture<PullEntriesResponse> handlePull(PullEntriesRequest request)
                                                  throws Exception

Throws:

Exception

handlePush

public CompletableFuture<PushEntryResponse> handlePush(PushEntryRequest request)
                                                throws Exception

Throws:

Exception

handleResponse

public org.apache.rocketmq.remoting.protocol.RemotingCommand handleResponse(RequestOrResponse response,
                                                                            org.apache.rocketmq.remoting.protocol.RemotingCommand request)

startup

public void startup()

Specified by:

startup in class DLedgerRpcService

shutdown

public void shutdown()

Specified by:

shutdown in class DLedgerRpcService

setDLedger

public void setDLedger(AbstractDLedgerServer dLedger)

getRemotingServer

public org.apache.rocketmq.remoting.netty.NettyRemotingServer getRemotingServer()

getRemotingClient

public org.apache.rocketmq.remoting.netty.NettyRemotingClient getRemotingClient()