消息派发扩展

扩展说明

通道信息派发器，用于指定线程池模型。

扩展接口

com.alibaba.dubbo.remoting.Dispatcher

扩展配置

  1. <dubbo:protocol dispatcher="xxx" />
  2. <!-- 缺省值设置，当<dubbo:protocol>没有配置dispatcher属性时，使用此配置 -->
  3. <dubbo:provider dispatcher="xxx" />

已知扩展

  • com.alibaba.dubbo.remoting.transport.dispatcher.all.AllDispatcher
  • com.alibaba.dubbo.remoting.transport.dispatcher.direct.DirectDispatcher
  • com.alibaba.dubbo.remoting.transport.dispatcher.message.MessageOnlyDispatcher
  • com.alibaba.dubbo.remoting.transport.dispatcher.execution.ExecutionDispatcher
  • com.alibaba.dubbo.remoting.transport.dispatcher.connection.ConnectionOrderedDispatcher

    扩展示例

Maven 项目结构：

  1. src
  2.  |-main
  3.     |-java
  4.         |-com
  5.             |-xxx
  6.                 |-XxxDispatcher.java (实现Dispatcher接口)
  7.     |-resources
  8.         |-META-INF
  9.             |-dubbo
  10.                 |-com.alibaba.dubbo.remoting.Dispatcher (纯文本文件，内容为：xxx=com.xxx.XxxDispatcher)

XxxDispatcher.java：

  1. package com.xxx;
  3. import com.alibaba.dubbo.remoting.Dispatcher;
  5. public class XxxDispatcher implements Dispatcher {
  6.     public Group lookup(URL url) {
  7.         // ...
  8.     }
  9. }

META-INF/dubbo/com.alibaba.dubbo.remoting.Dispatcher：

  1. xxx=com.xxx.XxxDispatcher

原文: http://dubbo.apache.org/#!/docs/dev/impls/dispatcher.md?lang=zh-cn