Logs module

[iRevive]

Warning

The purpose of this feature is to provide a way to bridge logs from logging frameworks (odin, log4cats, etc) into OpenTelemetry. This is not a logging API.

The specification:

• https://opentelemetry.io/docs/concepts/signals/logs/

Log example

• https://opentelemetry.io/docs/specs/otel/logs/api/
• https://opentelemetry.io/docs/specs/otel/logs/sdk/

Prerequistes

Before moving forward with a specific implementation, we must ensure the API is compatible with a Scala logging framework, such as:

• scribe - PoC
• odin
• log4cats (keep an eye on an API redesign: SAM Type Interface log4cats#920)

The scope

core

• Define LoggerProvider, LoggerBuilder, Logger, and LogRecordBuilder in the new core-logs module

OtelJava

• Provide OtelJava bindings in the oteljava-logs module
• Provide OtelJava testkit binding in the oteljava-logs-testkit module

SDK

• Implement SDK models, such as SdkLoggerProvider, SdkLogger, and so on, in the sdk-logs module
• Implement LogRecordExporter and ConsoleLogRecordExporter
• Implement LogRecordProcessor, BatchLogRecordProcessor, and SimpleLogRecordProcessor
• Implement autoconfigure instances

SDK exporter

• Implement LogsProtoEncoder in the sdk-exporter-logs module
• Implement OtlpLogRecordExporter
• Implement autoconfigure instances

SDK testkit

• Implement testkit in the sdk-logs-testkit module

Release

• Remove NoPublishPlugin from the logs modules
• Remove mimaPreviousArtifacts from the logs modules
• Make sure all modules are correctly linked
• Bump tlBaseVersion

[iRevive]

Here is a working PoC: iRevive#7