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use opentelemetry::sdk::export::{trace, ExportError};
mod v03;
mod v05;
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("message pack error")]
MessagePackError,
#[error("http client must be set, users can enable reqwest or surf feature to use http client implementation within create")]
NoHttpClient,
#[error(transparent)]
RequestError(#[from] http::Error),
#[error(transparent)]
InvalidUri(#[from] http::uri::InvalidUri),
#[error("{0}")]
Other(String),
}
impl ExportError for Error {
fn exporter_name(&self) -> &'static str {
"datadog"
}
}
impl From<rmp::encode::ValueWriteError> for Error {
fn from(_: rmp::encode::ValueWriteError) -> Self {
Self::MessagePackError
}
}
#[derive(Debug, Copy, Clone)]
pub enum ApiVersion {
Version03,
Version05,
}
impl ApiVersion {
pub(crate) fn path(self) -> &'static str {
match self {
ApiVersion::Version03 => "/v0.3/traces",
ApiVersion::Version05 => "/v0.5/traces",
}
}
pub(crate) fn content_type(self) -> &'static str {
match self {
ApiVersion::Version03 => "application/msgpack",
ApiVersion::Version05 => "application/msgpack",
}
}
pub(crate) fn encode(
self,
service_name: &str,
traces: Vec<Vec<trace::SpanData>>,
) -> Result<Vec<u8>, Error> {
match self {
Self::Version03 => v03::encode(service_name, traces),
Self::Version05 => v05::encode(service_name, traces),
}
}
}
#[cfg(test)]
pub(crate) mod tests {
use super::*;
use opentelemetry::sdk;
use opentelemetry::sdk::InstrumentationLibrary;
use opentelemetry::{
trace::{SpanContext, SpanId, SpanKind, StatusCode, TraceFlags, TraceId, TraceState},
Key,
};
use std::time::{Duration, SystemTime};
fn get_traces() -> Vec<Vec<trace::SpanData>> {
vec![vec![get_span(7, 1, 99)]]
}
pub(crate) fn get_span(trace_id: u128, parent_span_id: u64, span_id: u64) -> trace::SpanData {
let span_context = SpanContext::new(
TraceId::from_u128(trace_id),
SpanId::from_u64(span_id),
TraceFlags::default(),
false,
TraceState::default(),
);
let start_time = SystemTime::UNIX_EPOCH;
let end_time = start_time.checked_add(Duration::from_secs(1)).unwrap();
let capacity = 3;
let mut attributes = sdk::trace::EvictedHashMap::new(capacity, capacity as usize);
attributes.insert(Key::new("span.type").string("web"));
let events = sdk::trace::EvictedQueue::new(capacity);
let links = sdk::trace::EvictedQueue::new(capacity);
trace::SpanData {
span_context,
parent_span_id: SpanId::from_u64(parent_span_id),
span_kind: SpanKind::Client,
name: "resource".into(),
start_time,
end_time,
attributes,
events,
links,
status_code: StatusCode::Ok,
status_message: "".into(),
resource: None,
instrumentation_lib: InstrumentationLibrary::new("component", None),
}
}
#[test]
fn test_encode_v03() -> Result<(), Box<dyn std::error::Error>> {
let traces = get_traces();
let encoded = base64::encode(ApiVersion::Version03.encode("service_name", traces)?);
assert_eq!(encoded.as_str(), "kZGLpHR5cGWjd2Vip3NlcnZpY2Wsc2VydmljZV9uYW1lpG5hbWWpY29tcG9uZW50qHJlc291cmNlqHJlc291cmNlqHRyYWNlX2lkzwAAAAAAAAAHp3NwYW5faWTPAAAAAAAAAGOpcGFyZW50X2lkzwAAAAAAAAABpXN0YXJ00wAAAAAAAAAAqGR1cmF0aW9u0wAAAAA7msoApWVycm9y0gAAAAGkbWV0YYGpc3Bhbi50eXBlo3dlYg==");
Ok(())
}
#[test]
fn test_encode_v05() -> Result<(), Box<dyn std::error::Error>> {
let traces = get_traces();
let encoded = base64::encode(ApiVersion::Version05.encode("service_name", traces)?);
assert_eq!(encoded.as_str(), "kpWsc2VydmljZV9uYW1lo3dlYqljb21wb25lbnSocmVzb3VyY2Wpc3Bhbi50eXBlkZGczgAAAADOAAAAAs4AAAADzwAAAAAAAAAHzwAAAAAAAABjzwAAAAAAAAAB0wAAAAAAAAAA0wAAAAA7msoA0gAAAAGBzgAAAATOAAAAAYDOAAAAAQ==");
Ok(())
}
}