[Spring starter] Add cache to reduce environment variable lookups#15132
[Spring starter] Add cache to reduce environment variable lookups#15132laurit merged 7 commits intoopen-telemetry:mainfrom
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| @Override | ||
| public String getString(String name) { | ||
| String normalizedName = ConfigUtil.normalizeEnvironmentVariableKey(name); | ||
| String value = environment.getProperty(normalizedName, String.class); |
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An alternative approach that could be considered would be to wrap the environment into a caching PropertyResolver. I presume that the sdk deliberately rereads these properties so they could be updated with opamp in the future. Idk whether this is something we should be concerned with.
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I presume that the sdk deliberately rereads these properties
no, it was not a deliberate decision as far as I know.
When I worked on the project, I assumed that properties would only be read at startup time.
I think it's hard to anticipate how OpAMP will be integrated, but we may simply flush the cache (from the caching PropertyResolver.
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implemented a caching property resolver, and included a way to flush the cache
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| @Bean | ||
| @ConditionalOnMissingBean |
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i added this to allow people to customize the behavior, if they wanted
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we already have
- which I feel is enough, but feel free to create a separate PR to discussThere was a problem hiding this comment.
in the original issue #15009 they asked to be able to override this:
The auto-configuration should allow overriding or replacing SpringConfigProperties gracefully, for example by supporting @ConditionalOnMissingBean, so users can provide a cached or customized implementation without having to fork the library.
But since we addressed the performance issue, perhaps it's less necessary?
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yes, I think so
adding @ConditionalOnMissingBean increases the API surface area in ways that also increase complexity
…try-java-instrumentation into spring-cache-config
jaydeluca
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Fixes #15009
Add ability for users to customize AutoConfiguredOpenTelemetrySdk, and add cache for environment config lookups.