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Support long, double and boolean for tags #234 #235

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nikoncode
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@nikoncode nikoncode commented Apr 18, 2023

This is only draft.

Brave doesn't support other types to be set as tags, so primitives will be converted into string (this is safe).

Will make it fancy, after some preliminary idea approval

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That's a pretty straightforward change. Let's go with that!

@@ -71,6 +71,21 @@ public Span tag(String key, String value) {
return this;
}

@Override
public Span tag(String key, long value) {
return this;
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I think that the default could be just converting this to strings. return tag(key, String.valueOf(value)). WDYT?

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This is good suggestion, I applied it for all Brave* classes because brave really don't support this. For noops I prefer to use shortest possible form

@Override
public Span tag(String key, long value) {
this.delegate.setAttribute(key, value);
return new OtelSpan(this.delegate);
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Come to think of it I wonder why wasn't I consistent here in comparison to other tracers. I'm creating a new OtelSpan back instead of returning this. 🤔

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I see this patter in multiple places, I don't think that it's really required, but hard to be sure.

@nikoncode nikoncode force-pushed the wip-234-other-types-for-tags branch from 3decdd8 to a88cd54 Compare April 19, 2023 13:38
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You need to run ./gradlew format to fix formatting issues

@nikoncode nikoncode force-pushed the wip-234-other-types-for-tags branch 3 times, most recently from 58ce909 to 6adb7d7 Compare April 19, 2023 13:47
* @param value tag value
* @return this span
*/
Span tag(String key, long value);
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I think we should add default here and provide a default that converts to String cause otherwise we're making a breaking change

* @param value tag value
* @return this
*/
Builder tag(String key, long value);
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This should be default and delegate to the String version. Otherwise, this is a breaking change

* @param value tag value
* @return this, for chaining
*/
SpanCustomizer tag(String key, long value);
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This should be default and delegate to the String version. Otherwise, this is a breaking change

@nikoncode nikoncode force-pushed the wip-234-other-types-for-tags branch from 6adb7d7 to 8fc2f0d Compare April 19, 2023 13:52
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@marcingrzejszczak I see that the whole library built to support only string, string pairs.

My ultimate goal is to get support of these types from Convention layer, but I don't want to bloat this PR.

I want to ask your opinion about:

  • io.micrometer.tracing.Link - now supports only Map<String, String> as tags,
  • io.micrometer.tracing.otel.bridge.OtelFinishedSpan - his fromOtel and toOtel methods will erase attribute types (convert values to string), but it doesn't look like real problem because I don't use io.micrometer.tracing.otel.bridge.CompositeSpanExporter

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Done via #239

@jonatan-ivanov jonatan-ivanov changed the title wip: support long, double and boolean for tags #234 Support long, double and boolean for tags #234 Apr 20, 2023
@jonatan-ivanov jonatan-ivanov added the superseded Superseded by another issue, e.g. PR supersedes original issue label Apr 20, 2023
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3 participants