Add otlp http exporters

[trask]

So that OTEL_EXPERIMENTAL_EXPORTER_OTLP_PROTOCOL=http/protobuf will work once we pull in Java SDK 1.6.0 which introduces autoconfigure support for this open-telemetry/opentelemetry-java#3522

[anuraaga]

Oh btw I think we'll need to force the okhttp dependency to avoid pulling in the kotlin stdlib (assuming we didn't accidentally pull it in elsewhere again :P). Though with it EoL, it's too bad really, I think we may need to reconsider using okhttp @jkwatson @jack-berg . Kotlin stdlib is just too heavyweight for a telemetry exporter I think

[jkwatson]

Oh btw I think we'll need to force the okhttp dependency to avoid pulling in the kotlin stdlib (assuming we didn't accidentally pull it in elsewhere again :P). Though with it EoL, it's too bad really, I think we may need to reconsider using okhttp @jkwatson @jack-berg . Kotlin stdlib is just too heavyweight for a telemetry exporter I think

Which EOL are you referring to, exactly here?

[jkwatson]

Oh btw I think we'll need to force the okhttp dependency to avoid pulling in the kotlin stdlib (assuming we didn't accidentally pull it in elsewhere again :P). Though with it EoL, it's too bad really, I think we may need to reconsider using okhttp @jkwatson @jack-berg . Kotlin stdlib is just too heavyweight for a telemetry exporter I think

Which EOL are you referring to, exactly here?

oh, I get it. okhttp 3.x didn't depend on the kotlin stdlib, but has been eol'd. 4.x does depend on the kotlin stdlib, which is definitely some significant bloat.

[jkwatson]

Oh btw I think we'll need to force the okhttp dependency to avoid pulling in the kotlin stdlib (assuming we didn't accidentally pull it in elsewhere again :P). Though with it EoL, it's too bad really, I think we may need to reconsider using okhttp @jkwatson @jack-berg . Kotlin stdlib is just too heavyweight for a telemetry exporter I think

We should probably build an multi-version jar, and use the java11 httpclient if it's available. Maybe using HttpUrlConnection (ugh!) for java 8.

[jack-berg]

Geez none of these options sound good 😅

[trask]

I think we'll need to force the okhttp dependency to avoid pulling in the kotlin stdlib

thx for this 👍

going to merge this now that open-telemetry/opentelemetry-java#3590 is merged