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Posted to notifications@dubbo.apache.org by "dhyly (via GitHub)" <gi...@apache.org> on 2023/05/25 08:43:30 UTC
[GitHub] [dubbo] dhyly opened a new issue, #12402: 扩展依赖注入器(ExtensionInjector)集合无法自定义排序规则
dhyly opened a new issue, #12402:
URL: https://github.com/apache/dubbo/issues/12402
### Environment
* Dubbo version: 3.0.7
* Operating System version: win 10
* Java version: 1.8
### Issue
默认的自适应扩展点AdaptiveExtensionInjector,其初始化方法initialize中获取到ExtensionInjector所有扩展实现，但是默认通过TreeSet进行排序，即按照SPI文件中指定的扩展别名进行的排序:
**initialize方法:**
**getSupportedExtensions方法:**
如果我自定义一个CustomSpiExtensionInjector，我无法像Spring中继承Order接口一样，实现对自定义的扩展依赖注入器执行顺序的控制，为了防止自定义的扩展依赖注入器影响到dubbo内部的依赖注入逻辑，需要借助与自定义注解限制其处理范围:
### thinking
能否提供对扩展依赖注入器(ExtensionInjector)的排序支持
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[GitHub] [dubbo] AYue-94 commented on issue #12402: 扩展依赖注入器(ExtensionInjector)集合无法自定义排序规则
Posted by "AYue-94 (via GitHub)" <gi...@apache.org>.
AYue-94 commented on issue #12402:
URL: https://github.com/apache/dubbo/issues/12402#issuecomment-1563711592
我的想法是。
第一个问题，你可能可以尝试ExtensionPostProcessor这个扩展点在dubbo依赖注入前后自己判断。
第二个问题，这个肯定是返回自适应扩展，这是dubbo框架从2.x开始的老逻辑，所有扩展点通过setter注入的地方都是自适应的。可能是为了让你遵循在运行时通过url来动态选择扩展点，而不是在一开始就决定注入一个死的扩展点。
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[GitHub] [dubbo] dhyly commented on issue #12402: 扩展依赖注入器(ExtensionInjector)集合无法自定义排序规则
Posted by "dhyly (via GitHub)" <gi...@apache.org>.
dhyly commented on issue #12402:
URL: https://github.com/apache/dubbo/issues/12402#issuecomment-1563712989
> 我的想法是。 第一个问题，你可能可以尝试ExtensionPostProcessor这个扩展点在dubbo依赖注入前后自己判断。 第二个问题，这个肯定是返回自适应扩展，这是dubbo框架从2.x开始的老逻辑，所有扩展点通过setter注入的地方都是自适应的。可能是为了让你遵循在运行时通过url来动态选择扩展点，而不是在一开始就决定注入一个死的扩展点。
好的
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[GitHub] [dubbo] dhyly closed issue #12402: 扩展依赖注入器(ExtensionInjector)集合无法自定义排序规则
Posted by "dhyly (via GitHub)" <gi...@apache.org>.
dhyly closed issue #12402: 扩展依赖注入器(ExtensionInjector)集合无法自定义排序规则
URL: https://github.com/apache/dubbo/issues/12402
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