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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, TraceId},
KeyValue,
};
use async_trait::async_trait;
use std::borrow::Cow;
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<T>(
&mut self,
_name: T,
_timestamp: std::time::SystemTime,
_attributes: Vec<KeyValue>,
) where
T: Into<Cow<'static, str>>,
{
}
fn span_context(&self) -> &SpanContext {
&self.0
}
fn is_recording(&self) -> bool {
false
}
fn set_attribute(&mut self, _attribute: KeyValue) {}
fn set_status(&mut self, _code: StatusCode, _message: String) {}
fn update_name<T>(&mut self, _new_name: T)
where
T: Into<Cow<'static, str>>,
{
}
fn end_with_timestamp(&mut 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::INVALID,
span_kind: SpanKind::Internal,
name: "opentelemetry".into(),
start_time: crate::time::now(),
end_time: crate::time::now(),
attributes: EvictedHashMap::new(config.span_limits.max_attributes_per_span, 0),
events: EvictedQueue::new(config.span_limits.max_events_per_span),
links: EvictedQueue::new(config.span_limits.max_links_per_span),
status_code: StatusCode::Unset,
status_message: "".into(),
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())
}
}
impl TraceId {
pub fn from_u128(num: u128) -> Self {
TraceId(num)
}
}
impl SpanId {
pub fn from_u64(num: u64) -> Self {
SpanId(num)
}
}
