feat : add support for handling grpc request url

[kotharironak]

For RPC span, the span name is equivalent to Endpoint (URL) - https://github.com/open-telemetry/opentelemetry-specification/blob/3e380e249f60c3a5f68746f5e84d10195ba41a79/specification/trace/semantic_conventions/rpc.md#span-name

In cases if the convention is not followed, we would like to extend the platform to handle calc grpc request URL (& Endpoint) using a few other fallback attributes.

Secondly, we also want to enrich the URL based on client (Sent) or server (Recv) calls.

So, This PR,

• add utility method for calc grpc request URL from spanName + fallback attributes
• add GrpcAttribute enricher which adds two new attributes 1) URL 2) Endpoint
• update spanEventView generator to use an enriched attribute for populating grpc request url

[codecov]

Codecov Report

Merging #284 (98a40ed) into main (76c23fa) will increase coverage by 0.06%.
The diff coverage is 95.00%.

@@             Coverage Diff              @@
##               main     #284      +/-   ##
============================================
+ Coverage     79.08%   79.14%   +0.06%     
- Complexity     1231     1237       +6     
============================================
  Files           110      111       +1     
  Lines          4862     4881      +19     
  Branches        440      443       +3     
============================================
+ Hits           3845     3863      +18     
  Misses          813      813              
- Partials        204      205       +1     

Flag	Coverage Δ
unit	79.14% <95.00%> (+0.06%)	⬆️

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Impacted Files	Coverage Δ
.../enrichedspan/constants/EnrichedSpanConstants.java	50.00% <ø> (ø)
...er/enrichment/enrichers/GrpcAttributeEnricher.java	94.11% <94.11%> (ø)
...ewgenerator/generators/SpanEventViewGenerator.java	92.30% <100.00%> (+0.12%)	⬆️

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[avinashkolluru]

Is PROTOCOL and enriched attribute?
If yes, are these 2 dependencies good enough for that?

[kotharironak]

Yes PROTOCOL is enriched attributes, and these deps take care of both enriched attributes required by this enricher.
Ref :

hypertrace-ingester/hypertrace-trace-enricher/hypertrace-trace-enricher-impl/src/main/java/org/hypertrace/traceenricher/enrichment/enrichers/SpanTypeAttributeEnricher.java

Line 177 in 76ecd76

PROTOCOL_ATTR,

[avinashkolluru]

I think we can get rid of the .format.dotted part in both the attributes.

[kotharironak]

Done.

[github-actions]

Unit Test Results

  74 files  +1    74 suites  +1   58s ⏱️ -5s
389 tests  - 1  389 ✔️  - 1  0 💤 ±0  0 ❌ ±0 

Results for commit 6d111a2. ± Comparison against base commit 76c23fa.