function transformValueType()

in packages/opentelemetry-cloud-monitoring-exporter/src/transform.ts [100:130]

• 27 lines of code
• 7 McCabe index (conditional complexity)

function transformValueType(metric: MetricData): ValueType {
  const {
    dataPointType,
    descriptor: {valueType},
  } = metric;

  switch (dataPointType) {
    case DataPointType.HISTOGRAM:
    case DataPointType.EXPONENTIAL_HISTOGRAM:
      return ValueType.DISTRIBUTION;
    case DataPointType.GAUGE:
    case DataPointType.SUM:
      // handle below
      break;
    default:
      exhaust(dataPointType);
      // No logging needed as it will be done in transformPoints()
      return ValueType.VALUE_TYPE_UNSPECIFIED;
  }

  switch (valueType) {
    case OTValueType.DOUBLE:
      return ValueType.DOUBLE;
    case OTValueType.INT:
      return ValueType.INT64;
    default:
      exhaust(valueType);
      diag.info('Encountered unexpected value type %s', valueType);
      return ValueType.VALUE_TYPE_UNSPECIFIED;
  }
}