Compliance Matrix Validation for rel1.0.0 - Baggage , Resource

[lalitb]

This ticket is to validate the below attributes of the Spec Compliance Matrix for Rel 1.0.0. While validation, if there is any ticket created for non-compliance, mention that next to the non-compliant point below in the description.

Link:
Baggage: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.0.0/spec-compliance-matrix.md#baggage
Resource: https://github.com/open-telemetry/opentelemetry-specification/blob/v1.0.0/spec-compliance-matrix.md#resource

Baggage:

• Basic Support
• Use official header name baggage

Resource:

• Create from Attributes
• Create empty
• Merge (v2)
• Retrieve attributes
• Default value for service.name

[maxgolov]

One issue we need to fix for Resource API : #733

[lalitb]

Baggage

Basic Support :

https://github.com/open-telemetry/opentelemetry-cpp/blob/v0.7.0/api/include/opentelemetry/baggage/baggage.h

Use official header name baggage

opentelemetry-cpp/api/include/opentelemetry/baggage/propagation/baggage_propagator.h

Line 13 in ac0e617

static const nostd::string_view kBaggageHeader = "baggage";

[lalitb]

Resource

Create from Attributes

opentelemetry-cpp/sdk/src/resource/resource.cc

Line 30 in ac0e617

Resource Resource::Create(const ResourceAttributes &attributes)

Create empty

opentelemetry-cpp/sdk/src/resource/resource.cc

Line 48 in ac0e617

Resource &Resource::GetEmpty()

Merge (v2)

opentelemetry-cpp/sdk/src/resource/resource.cc

Line 23 in ac0e617

Resource Resource::Merge(const Resource &other) noexcept

Retrieve attributes

opentelemetry-cpp/sdk/src/resource/resource.cc

Line 62 in ac0e617

const ResourceAttributes &Resource::GetAttributes() const noexcept

Default value for service.name

opentelemetry-cpp/sdk/src/resource/resource.cc

Line 37 in ac0e617

std::string default_service_name = "unknown_service";

[lalitb]

Validated all the specs compliance points.