Function ParseDimensionKey

modules/distributor/usage/tracker.go:499–509

ParseDimensionKey take the dimensions key, and gives the scope and the attribute with scope trimmed we are not using traceql.ParseIdentifier because it needs `.` for unscoped attributes and errors out for string without `.` or the scope prefix, also it supports other scopes that we don't support in

(key string)

// and errors out for string without `.` or the scope prefix, also it supports other scopes that we don't support
// in cost attribution config
func ParseDimensionKey(key string) (attribute string, scope Scope) {
	switch {
	case strings.HasPrefix(key, "resource."):
		return strings.TrimPrefix(key, "resource."), ScopeResource
	case strings.HasPrefix(key, "span."):
		return strings.TrimPrefix(key, "span."), ScopeSpan
	default:
		// it's not `resource.` or `span.` so it's ScopeAll, and the dimensions key is the attribute
		return key, ScopeAll
	}
}