splunkhecexporter: update labels -> attributes (#4613)

Following the changes in core to OTLP 0.9.0 to move away from `Labels` and on to `Attributes`

**Link to tracking Issue:** Part of open-telemetry/opentelemetry-collector#3535

exporter/splunkhecexporter/client_test.go

@@ -88,10 +88,10 @@ func createMetricsData(numberOfDataPoints int) pdata.Metrics {
  doublePt := metric.Gauge().DataPoints().AppendEmpty()
  doublePt.SetTimestamp(pdata.TimestampFromTime(tsUnix))
  doublePt.SetDoubleVal(doubleVal)
- doublePt.LabelsMap().Insert("k/n0", "vn0")
- doublePt.LabelsMap().Insert("k/n1", "vn1")
- doublePt.LabelsMap().Insert("k/r0", "vr0")
- doublePt.LabelsMap().Insert("k/r1", "vr1")
+ doublePt.Attributes().InsertString("k/n0", "vn0")
+ doublePt.Attributes().InsertString("k/n1", "vn1")
+ doublePt.Attributes().InsertString("k/r0", "vr0")
+ doublePt.Attributes().InsertString("k/r1", "vr1")
  }
 
  return metrics

exporter/splunkhecexporter/metricdata_to_splunk.go

@@ -88,7 +88,7 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  for gi := 0; gi < pts.Len(); gi++ {
  dataPt := pts.At(gi)
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  switch dataPt.Type() {
  case pdata.MetricValueTypeInt:
  fields[metricFieldName] = dataPt.IntVal()
@@ -108,15 +108,15 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  // first, add one event for sum, and one for count
  {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields[metricFieldName+sumSuffix] = dataPt.Sum()
  fields[splunkMetricTypeKey] = pdata.MetricDataTypeHistogram.String()
  sm := createEvent(dataPt.Timestamp(), host, source, sourceType, index, fields)
  splunkMetrics = append(splunkMetrics, sm)
  }
  {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields[metricFieldName+countSuffix] = dataPt.Count()
  fields[splunkMetricTypeKey] = pdata.MetricDataTypeHistogram.String()
  sm := createEvent(dataPt.Timestamp(), host, source, sourceType, index, fields)
@@ -131,7 +131,7 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  // now create buckets for each bound.
  for bi := 0; bi < len(bounds); bi++ {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields["le"] = float64ToDimValue(bounds[bi])
  value += counts[bi]
  fields[metricFieldName+bucketSuffix] = value
@@ -142,7 +142,7 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  // add an upper bound for +Inf
  {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields["le"] = float64ToDimValue(math.Inf(1))
  fields[metricFieldName+bucketSuffix] = value + counts[len(counts)-1]
  fields[splunkMetricTypeKey] = pdata.MetricDataTypeHistogram.String()
@@ -155,7 +155,7 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  for gi := 0; gi < pts.Len(); gi++ {
  dataPt := pts.At(gi)
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  switch dataPt.Type() {
  case pdata.MetricValueTypeInt:
  fields[metricFieldName] = dataPt.IntVal()
@@ -173,15 +173,15 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  // first, add one event for sum, and one for count
  {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields[metricFieldName+sumSuffix] = dataPt.Sum()
  fields[splunkMetricTypeKey] = pdata.MetricDataTypeSummary.String()
  sm := createEvent(dataPt.Timestamp(), host, source, sourceType, index, fields)
  splunkMetrics = append(splunkMetrics, sm)
  }
  {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  fields[metricFieldName+countSuffix] = dataPt.Count()
  fields[splunkMetricTypeKey] = pdata.MetricDataTypeSummary.String()
  sm := createEvent(dataPt.Timestamp(), host, source, sourceType, index, fields)
@@ -191,7 +191,7 @@ func metricDataToSplunk(logger *zap.Logger, data pdata.Metrics, config *Config)
  // now create values for each quantile.
  for bi := 0; bi < dataPt.QuantileValues().Len(); bi++ {
  fields := cloneMap(commonFields)
- populateLabels(fields, dataPt.LabelsMap())
+ populateAttributes(fields, dataPt.Attributes())
  dp := dataPt.QuantileValues().At(bi)
  fields["qt"] = float64ToDimValue(dp.Quantile())
  fields[metricFieldName+"_"+strconv.FormatFloat(dp.Quantile(), 'f', -1, 64)] = dp.Value()
@@ -228,9 +228,9 @@ func createEvent(timestamp pdata.Timestamp, host string, source string, sourceTy
 
 }
 
-func populateLabels(fields map[string]interface{}, labelsMap pdata.StringMap) {
- labelsMap.Range(func(k string, v string) bool {
- fields[k] = v
+func populateAttributes(fields map[string]interface{}, attributeMap pdata.AttributeMap) {
+ attributeMap.Range(func(k string, v pdata.AttributeValue) bool {
+ fields[k] = v.StringVal()
  return true
  })
 }