[receiver/awsxray] Set cloudwatch logs metadata in attributes.

[jefchien]

Description:

From the issue:

X-Ray segments have a few optional fields that carry AWS resource data. As part of the translation of X-Ray segments to spans, the translator extracts AWS data and puts them in the resource attributes. It does this for EC2, ECS, Beanstalk, and EKS, but not for CloudWatch Logs. So, by the time the span reaches the exporter, that information is lost.

This change adds the cloudwatch logs metadata to the attributes with the keys conventions.AttributeAWSLogGroupARNs and conventions.AttributeAWSLogGroupNames. Both of these are used by the awsxrayexporter to restore the LogGroupMetadata.

opentelemetry-collector-contrib/exporter/awsxrayexporter/internal/translator/aws.go

Lines 109 to 112 in 7441665

	case conventions.AttributeAWSLogGroupNames:
	logGroups = normalizeToSlice(value)
	case conventions.AttributeAWSLogGroupARNs:
	logGroupArns = normalizeToSlice(value)

opentelemetry-collector-contrib/exporter/awsxrayexporter/internal/translator/aws.go

Lines 295 to 311 in 7441665

	func getLogGroupMetadata(logGroups pcommon.Slice, isArn bool) []awsxray.LogGroupMetadata {
	var lgm []awsxray.LogGroupMetadata
	for i := 0; i < logGroups.Len(); i++ {
	if isArn {
	lgm = append(lgm, awsxray.LogGroupMetadata{
	Arn: awsxray.String(logGroups.At(i).Str()),
	LogGroup: awsxray.String(parseLogGroup(logGroups.At(i).Str())),
	})
	} else {
	lgm = append(lgm, awsxray.LogGroupMetadata{
	LogGroup: awsxray.String(logGroups.At(i).Str()),
	})
	}
	}
	return lgm
	}

Link to tracking Issue: open-telemetry#31784, aws/amazon-cloudwatch-agent#1097

Testing: Added unit tests to validate the translation to resource attributes.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.