dubbo源码阅读笔记--服务调用时序

最新推荐文章于 2024-04-19 20:31:11 发布

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本文深入剖析Dubbo服务调用时序，详细阐述从连接建立、解码到消息调用的全过程。通过梳理关键步骤如`connect`、`decode`、`invoke`，并具体解析每个阶段的代码实现，为读者提供全面的服务调用流程理解。

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上接dubbo源码阅读笔记--暴露服务时序，继续梳理服务调用时序，下图右面红线流程。

整理了调用时序图

分为3步，connect，decode，invoke。

连接

AllChannelHandler.connected(Channel) line: 38	
HeartbeatHandler.connected(Channel) line: 47	
MultiMessageHandler(AbstractChannelHandlerDelegate).connected(Channel) line: 28	
NettyServer(AbstractPeer).connected(Channel) line: 105	
NettyServer(AbstractServer).connected(Channel) line: 191	
NettyHandler.channelConnected(ChannelHandlerContext, ChannelStateEvent) line: 70

decode

DecodeableRpcInvocation.decode(Channel, InputStream) line: 92	
DecodeableRpcInvocation.decode() line: 74	
DubboCodec.decodeBody(Channel, InputStream, byte[]) line: 138	
DubboCodec(ExchangeCodec).decode(Channel, ChannelBuffer, int, byte[]) line: 134	
DubboCodec(ExchangeCodec).decode(Channel, ChannelBuffer) line: 95	
DubboCountCodec.decode(Channel, ChannelBuffer) line: 46	
NettyCodecAdapter$InternalDecoder.messageReceived(ChannelHandlerContext, MessageEvent) line: 134	
NettyCodecAdapter$InternalDecoder(SimpleChannelUpstreamHandler).handleUpstream(ChannelHandlerContext, ChannelEvent) line: 70

invoke

AllChannelHandler.received(Channel, Object) line: 54	
HeartbeatHandler.received(Channel, Object) line: 90	
MultiMessageHandler.received(Channel, Object) line: 28	
NettyServer(AbstractPeer).received(Channel, Object) line: 123	
NettyHandler.messageReceived(ChannelHandlerContext, MessageEvent) line: 91	
NettyHandler(SimpleChannelHandler).handleUpstream(ChannelHandlerContext, ChannelEvent) line: 88	
DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline$DefaultChannelHandlerContext, ChannelEvent) line: 564	
DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(ChannelEvent) line: 791	
Channels.fireMessageReceived(ChannelHandlerContext, Object, SocketAddress) line: 296	
NettyCodecAdapter$InternalDecoder.messageReceived(ChannelHandlerContext, MessageEvent) line: 148	
NettyCodecAdapter$InternalDecoder(SimpleChannelUpstreamHandler).handleUpstream(ChannelHandlerContext, ChannelEvent) line: 70

BidServiceImpl.bid(BidRequest) line: 24	
Wrapper3.invokeMethod(Object, String, Class[], Object[]) line: not available	
JavassistProxyFactory$1.doInvoke(T, String, Class<?>[], Object[]) line: 46	
JavassistProxyFactory$1(AbstractProxyInvoker<T>).invoke(Invocation) line: 72	
RegistryProtocol$InvokerDelegete<T>(InvokerWrapper<T>).invoke(Invocation) line: 53	
ExceptionFilter.invoke(Invoker<?>, Invocation) line: 64	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
TimeoutFilter.invoke(Invoker<?>, Invocation) line: 42	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
MonitorFilter.invoke(Invoker<?>, Invocation) line: 75	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
TraceFilter.invoke(Invoker<?>, Invocation) line: 78	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
ContextFilter.invoke(Invoker<?>, Invocation) line: 70	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
GenericFilter.invoke(Invoker<?>, Invocation) line: 132	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
ClassLoaderFilter.invoke(Invoker<?>, Invocation) line: 38	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
EchoFilter.invoke(Invoker<?>, Invocation) line: 38	
ProtocolFilterWrapper$1.invoke(Invocation) line: 91	
DubboProtocol$1.reply(ExchangeChannel, Object) line: 113	消息解析，message->invoker
HeaderExchangeHandler.handleRequest(ExchangeChannel, Request) line: 84	
HeaderExchangeHandler.received(Channel, Object) line: 170	
DecodeHandler.received(Channel, Object) line: 52	
ChannelEventRunnable.run() line: 82