apache/dubbo

I'm curious about the method:getSubProperties

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#7,250 opened on Feb 23, 2021

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Description

Environment

  • Dubbo version: 2.7.5-SNAPSHOT
  • Operating System version: win10
  • Java version: 1.8.0_111

Steps to reproduce this issue

  1. 为什么解析@EnableDubboConfigBinding的每一行配置都要从springEnv引用到 new AbstractEnvironment() 见org/apache/dubbo/config/spring/util/PropertySourcesUtils.java:52 如下： public static Map<String, Object> getSubProperties(Iterable<PropertySource<?>> propertySources, String prefix) {

     // Non-Extension AbstractEnvironment
 AbstractEnvironment environment = new AbstractEnvironment() {
 };

 MutablePropertySources mutablePropertySources = environment.getPropertySources();

 for (PropertySource<?> source : propertySources) {
     mutablePropertySources.addLast(source);
 }

Contributor guide

Research direction
Explain why AbstractEnvironment is instantiated in getSubProperties and how property sources are used.
Tech stack
java
Domain
backend
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaSpring Framework
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70