splunkhec exporter: Allows users to enable exporter batching via config

[splunkericl]

Component(s)

exporter/splunkhec

Is your feature request related to a problem? Please describe.

With exporter batching introduced in open-telemetry/opentelemetry-collector#9738, users should be able to leverage this for splunk hec exporter so they can enable batching in the exporter side.

Describe the solution you'd like

Adds exporter batching config in the splunk hec exporter config, if the batching is enabled, add the batching options when creating a new log/metrics instance.

type Config struct {
   // ...
   BatcherConfig exporterbatcher.Config    `mapstructure:"batcher"`
}

func createLogsExporter() {
 var options []exporterhelper.Option

  cfg := config.(*Config)
  if cfg.BatcherConfig.Enabled {
      options = append(options, exporterhelper.WithBatcher())
  }
  
  return exporterhelper.NewLogsExporter(..., options...)
}

Describe alternatives you've considered

N/A. Users can utilitize batcher processor but the functionality introduce an async gap in the pipeline. This is what the exporter batching can eliminate.

Additional context

No response

[github-actions]

Pinging code owners:

• exporter/splunkhec: @atoulme @dmitryax

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[splunkericl]

Happy to take this change and submit a PR

[crobert-1]

Sounds like a good idea to me. Removing needs triage.