dubbo源码解析2.0.pdf

真正的对DUBBO源代码进行分析。其他人的要么内容不足，要么分太贵 目录 目录 ..................................................................................................................................................2 1 源码阅读路径...........................................................................................................................4 2 背景...........................................................................................................................................4 3 Dubbo 架构...............................................................................................................................5 4 HelloWorld 例子 .......................................................................................................................7 5 源文件概述...............................................................................................................................8 6 核心机制分析.........................................................................................................................10 6.1 设计模式.................................................................................................................10 6.2 Bean 加载 ...............................................................................................................11 6.2.1 Spring 可扩展 Schema....................................................................................11 6.2.2 Spring 加载 bean 流程 ...................................................................................15 6.2.2.1 解析 xml 中的 bean 定义.......................................................................15 6.2.2.2 onApplicationEvent..................................................................................17 6.2.2.3 Main .........................................................................................................19 6.3 Extension 机制........................................................................................................20 6.3.1 Java SPI............................................................................................................20 6.3.2 扩展点.............................................................................................................20 6.3.2.1 扩展点配置.............................................................................................20 6.3.2.2 扩展点加载流程.....................................................................................21 6.3.2.3 扩展点装饰.............................................................................................28 6.3.2.4 ExtensionFactory......................................................................................32 6.4 代理.........................................................................................................................36 6.4.1 Invoker 调用....................................................................................................36 6.4.2 JDK 代理..........................................................................................................39 6.4.3 Javaassist 代理（动态） ................................................................................39 6.5 远程调用流程.........................................................................................................42 6.5.1 通信过程.........................................................................................................42 6.5.2 序列化.............................................................................................................43 6.5.3 Encode 和 Decode...........................................................................................46 7 过程分析.................................................................................................................................47 7.1 Refer & export.........................................................................................................47 7.1.1 调用顺序.........................................................................................................47 7.1.2 生成 Invoker....................................................................................................50 7.1.3 export..............................................................................................................58 7.2 Registry....................................................................................................................60 7.2.1 RegistryFactory 和 Registry.............................................................................60 7.2.2 DubboRegistryFactory 创建注册中心过程....................................................63 7.2.3 注册中心启动.................................................................................................68 7.2.4 生产者发布服务.............................................................................................69 7.2.4.1 Export 发布服务流程..............................................................................69 7.2.4.2 RegistryProtocol.export(Invoker)暴露服务 .............................................72 7.2.5 消费者引用服务.............................................................................................73 7.2.5.1 Refer 取得 invoker 的过程 ......................................................................73 7.2.5.2 RegistryProtocol. Refer 过程....................................................................74 7.3 集群&容错..............................................................................................................75 7.3.1 Cluster .............................................................................................................76 7.3.2 目录服务 Directory.........................................................................................78 7.3.3 router 路由服务..............................................................................................80 7.3.4 负载均衡.........................................................................................................81 7.3.4.1 RandomLoadBalance................................................................................82 7.3.4.2 RoundRobinLoadBalance .........................................................................82 7.3.4.3 LeastActiveLoadBalance...........................................................................83 7.3.4.4 ConsistentHashLoadBalance ....................................................................84 7.3.5 配置规则.........................................................................................................84 7.4 telnet.......................................................................................................................85 7.5 监控.........................................................................................................................87 7.5.1 监控中心.........................................................................................................87 7.5.2 SimpleMonitorService.....................................................................................89 7.5.2.1 Monitor 基础类 .......................................................................................89 7.5.2.2 SimpleMonitorService..............................................................................91 7.5.2.3 产生监控数据.........................................................................................93 7.5.2.4 RegistryContainer.....................................................................................94 7.5.2.5 JettyContainer..........................................................................................95