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use crate::{ sdk::export::{ trace::{ExportResult, SpanData, SpanExporter}, ExportError, }, sdk::{ trace::{Config, EvictedHashMap, EvictedQueue}, InstrumentationLibrary, }, trace::{Span, SpanContext, SpanId, SpanKind, StatusCode}, KeyValue, }; use async_trait::async_trait; use std::fmt::{Display, Formatter}; use std::sync::mpsc::{channel, Receiver, Sender}; #[derive(Debug)] pub struct TestSpan(pub SpanContext); impl Span for TestSpan { fn add_event_with_timestamp( &self, _name: String, _timestamp: std::time::SystemTime, _attributes: Vec<KeyValue>, ) { } fn span_context(&self) -> &SpanContext { &self.0 } fn is_recording(&self) -> bool { false } fn set_attribute(&self, _attribute: KeyValue) {} fn set_status(&self, _code: StatusCode, _message: String) {} fn update_name(&self, _new_name: String) {} fn end_with_timestamp(&self, _timestamp: std::time::SystemTime) {} } pub fn new_test_export_span_data() -> SpanData { let config = Config::default(); SpanData { span_context: SpanContext::empty_context(), parent_span_id: SpanId::from_u64(0), span_kind: SpanKind::Internal, name: "opentelemetry".to_string(), start_time: crate::time::now(), end_time: crate::time::now(), attributes: EvictedHashMap::new(config.max_attributes_per_span, 0), message_events: EvictedQueue::new(config.max_events_per_span), links: EvictedQueue::new(config.max_links_per_span), status_code: StatusCode::Unset, status_message: "".to_string(), resource: config.resource, instrumentation_lib: InstrumentationLibrary::default(), } } #[derive(Debug)] pub struct TestSpanExporter { tx_export: Sender<SpanData>, tx_shutdown: Sender<()>, } #[async_trait] impl SpanExporter for TestSpanExporter { async fn export(&mut self, batch: Vec<SpanData>) -> ExportResult { for span_data in batch { self.tx_export .send(span_data) .map_err::<TestExportError, _>(Into::into)?; } Ok(()) } fn shutdown(&mut self) { self.tx_shutdown.send(()).unwrap(); } } pub fn new_test_exporter() -> (TestSpanExporter, Receiver<SpanData>, Receiver<()>) { let (tx_export, rx_export) = channel(); let (tx_shutdown, rx_shutdown) = channel(); let exporter = TestSpanExporter { tx_export, tx_shutdown, }; (exporter, rx_export, rx_shutdown) } #[derive(Debug)] pub struct TokioSpanExporter { tx_export: tokio::sync::mpsc::UnboundedSender<SpanData>, tx_shutdown: tokio::sync::mpsc::UnboundedSender<()>, } #[async_trait] impl SpanExporter for TokioSpanExporter { async fn export(&mut self, batch: Vec<SpanData>) -> ExportResult { for span_data in batch { self.tx_export .send(span_data) .map_err::<TestExportError, _>(Into::into)?; } Ok(()) } fn shutdown(&mut self) { self.tx_shutdown.send(()).unwrap(); } } pub fn new_tokio_test_exporter() -> ( TokioSpanExporter, tokio::sync::mpsc::UnboundedReceiver<SpanData>, tokio::sync::mpsc::UnboundedReceiver<()>, ) { let (tx_export, rx_export) = tokio::sync::mpsc::unbounded_channel(); let (tx_shutdown, rx_shutdown) = tokio::sync::mpsc::unbounded_channel(); let exporter = TokioSpanExporter { tx_export, tx_shutdown, }; (exporter, rx_export, rx_shutdown) } #[derive(Debug)] pub struct TestExportError(String); impl std::error::Error for TestExportError {} impl ExportError for TestExportError { fn exporter_name(&self) -> &'static str { "test" } } impl Display for TestExportError { fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { write!(f, "{}", self.0) } } impl<T> From<tokio::sync::mpsc::error::SendError<T>> for TestExportError { fn from(err: tokio::sync::mpsc::error::SendError<T>) -> Self { TestExportError(err.to_string()) } } impl<T> From<std::sync::mpsc::SendError<T>> for TestExportError { fn from(err: std::sync::mpsc::SendError<T>) -> Self { TestExportError(err.to_string()) } }