Struct SimpleSpanProcessor 

pub struct SimpleSpanProcessor<T: SpanExporter> { /* private fields */ }

A SpanProcessor that passes finished spans to the configured SpanExporter, as soon as they are finished, without any batching. This is typically useful for debugging and testing. For scenarios requiring higher performance/throughput, consider using BatchSpanProcessor. Spans are exported synchronously in the same thread that emits the log record. When using this processor with the OTLP Exporter, the following exporter features are supported:

• grpc-tonic: This requires TracerProvider to be created within a tokio runtime. Spans can be emitted from any thread, including tokio runtime threads.
• reqwest-blocking-client: TracerProvider may be created anywhere, but spans must be emitted from a non-tokio runtime thread.
• reqwest-client: TracerProvider may be created anywhere, but spans must be emitted from a tokio runtime thread.

The OTLP HTTP exporter chooses its default HTTP client from enabled crate features. That choice is not processor-aware. If you enable async HTTP clients such as reqwest-client or hyper-client, ensure this processor is only used from a thread where those clients can run.

Implementations

impl<T: SpanExporter> SimpleSpanProcessor<T>

pub fn new(exporter: T) -> Self

Create a new SimpleSpanProcessor using the provided exporter.

Trait Implementations

impl<T: Debug + SpanExporter> Debug for SimpleSpanProcessor<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: SpanExporter> SpanProcessor for SimpleSpanProcessor<T>

fn on_start(&self, _span: &mut Span, _cx: &Context)

on_start is called when a Span is started. This method is called synchronously on the thread that started the span, therefore it should not block or throw exceptions.

fn on_end(&self, span: SpanData)

on_end is called after a Span is ended (i.e., the end timestamp is already set). This method is called synchronously within the Span::end API, therefore it should not block or throw an exception.

fn force_flush(&self) -> OTelSdkResult

Force the spans lying in the cache to be exported.

fn shutdown_with_timeout(&self, timeout: Duration) -> OTelSdkResult

Shuts down the processor. Called when SDK is shut down. This is an opportunity for processors to do any cleanup required.

fn set_resource(&mut self, resource: &Resource)

Set the resource for the span processor.

fn shutdown(&self) -> OTelSdkResult

shutdown the processor with a default timeout.