[exporter/debug] display resource and scope in normal verbosity

[andrzej-stencel]

Description

Adds displaying of resource and scope details in normal verbosity.

Each resource is represented with one line showing the resource's details:

• schema URL
• resource attributes

which looks like ResourceTraces #0 [resource-schema-url] resource_attr1=value1 attr2=value2.

Each instrumentation scope is represented by one line showing the scope's details:

• scope name
• scope version
• scope schema URL
• scope attributes

which looks like ScopeTraces #0 scope-name@scope-version [scope-schema-url] scope_attr1=value1 attr2=value2.

Before:

2025-05-09T19:57:16.332+0200    info    Traces  {"resource": {}, "otelcol.component.id": "debug/normal", "otelcol.component.kind": "exporter", "otelcol.signal": "traces", "resource spans": 1, "spans": 2}
2025-05-09T19:57:16.332+0200    info    okey-dokey-0 ab1030bd4ee554af936542b01d7b4807 1d8c93663d043aa8 net.sock.peer.addr=1.2.3.4 peer.service=telemetrygen-client
lets-go ab1030bd4ee554af936542b01d7b4807 0d238e8a2f97733f net.sock.peer.addr=1.2.3.4 peer.service=telemetrygen-server
        {"resource": {}, "otelcol.component.id": "debug/normal", "otelcol.component.kind": "exporter", "otelcol.signal": "traces"}

After:

2025-05-09T19:57:16.332+0200    info    Traces  {"resource": {}, "otelcol.component.id": "debug/normal", "otelcol.component.kind": "exporter", "otelcol.signal": "traces", "resource spans": 1, "spans": 2}
2025-05-09T19:57:16.332+0200    info    ResourceTraces #0 [https://opentelemetry.io/schemas/1.25.0] service.name=telemetrygen
ScopeTraces #0 telemetrygen
okey-dokey-0 ab1030bd4ee554af936542b01d7b4807 1d8c93663d043aa8 net.sock.peer.addr=1.2.3.4 peer.service=telemetrygen-client
lets-go ab1030bd4ee554af936542b01d7b4807 0d238e8a2f97733f net.sock.peer.addr=1.2.3.4 peer.service=telemetrygen-server
        {"resource": {}, "otelcol.component.id": "debug/normal", "otelcol.component.kind": "exporter", "otelcol.signal": "traces"}

Link to tracking issue

Fixes #10515

Testing

Updated unit tests.

Documentation

Updated example in documentation.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.60%. Comparing base (094e1fa) to head (07997d6).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #13011      +/-   ##
==========================================
+ Coverage   91.58%   91.60%   +0.01%     
==========================================
  Files         505      505              
  Lines       28319    28370      +51     
==========================================
+ Hits        25937    25988      +51     
  Misses       1873     1873              
  Partials      509      509              

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