dubbo源码之一——xml schema扩展

dubbo源码版本：2.5.4

dubbo-parent

        |----dubbo-config

                      |----dubbo-config-api

                                    |----com.alibaba.dubbo.config.*

                      |----dubbo-config-spring

                                    |----com.alibaba.dubbo.config.spring.schema.DubboNamespaceHandler.java

                                    |----com.alibaba.dubbo.config.spring.schema.DubboBeanDefinitionParser.java

                                    |----META-INF/dubbo.xsd

                                    |----META-INF/spring.handlers

                                    |----META-INF/spring.schemas

注：*代表任意文件或目录。

阿里巴巴的工程师利用spring schema扩展为dubbo定义了

XML Schema：http://code.alibabatech.com/schema/dubbo/dubbo.xsd

XML namespace：http://code.alibabatech.com/schema/dubbo

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dubbo schema定义了如下对象：

ApplicationConfig
ModuleConfig
RegistryConfig
MonitorConfig
ProviderConfig
ConsumerConfig
ProtocolConfig
ServiceBean
ReferenceBean
AnnotationBean

在spring xml文件中按照下面的方式注入dubbo schema中定义的对象：

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<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
xsi:schemaLocation="
http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

<dubbo:application name="annotation-consumer" />
<dubbo:registry address="127.0.0.1:4548" />
<dubbo:annotation package="com.alibaba.dubbo.config.spring.annotation.consumer" />

</beans>