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`class Span`

A span which validates tag assignment.

Definitions

`def initialize(context, name, resource, attributes)`

Initialize a new span.

Signature

parameter　context　Context: The context in which the span is recorded.
parameter　name　String: A useful name/annotation for the recorded span.
parameter　resource　String: The "resource" that the span is associated with.
parameter　attributes　Hash: Metadata for the recorded span.

Implementation

def initialize(context, name, resource, attributes)
	@context = context
	@name = name
	@resource = resource
	@attributes = attributes
end

`def []= key, value`

Assign some metadata to the span.

Signature

parameter　key　String: The metadata key.
parameter　value　Object: The metadata value. Should be coercable to a string.

Implementation

def []= key, value
	@attributes[key] = value
end

`def as_json`

Convert the span to a JSON representation.

Implementation

def as_json
	{
		name: @name,
		resource: @resource,
		attributes: @attributes,
		context: @context.as_json
	}
end

`def to_json(...)`

Convert the span to a JSON string.

Implementation

def to_json(...)
	as_json.to_json(...)
end