Feat/remove timeout from detectors (#2332)

opentelemetry-sdk/CHANGELOG.md

@@ -2,11 +2,13 @@
 
 ## vNext
 
-- *Breaking* SimpleLogProcessor modified to be generic over `LogExporter` to
-  avoid dynamic dispatch to invoke exporter. If you were using
-  `with_simple_exporter` to add `LogExporter` with SimpleLogProcessor, this is a
-  transparent change.
-  [#2338](https://github.com/open-telemetry/opentelemetry-rust/pull/2338)
+- *Breaking*
+  - SimpleLogProcessor modified to be generic over `LogExporter` to
+    avoid dynamic dispatch to invoke exporter. If you were using
+    `with_simple_exporter` to add `LogExporter` with SimpleLogProcessor, this is a
+    transparent change.
+    [#2338](https://github.com/open-telemetry/opentelemetry-rust/pull/2338)
+  - `ResourceDetector.detect()` no longer supports timeout option.
 
 ## 0.27.1
 

opentelemetry-sdk/src/resource/env.rs

@@ -5,7 +5,6 @@
 use crate::resource::{Resource, ResourceDetector};
 use opentelemetry::{Key, KeyValue, Value};
 use std::env;
-use std::time::Duration;
 
 const OTEL_RESOURCE_ATTRIBUTES: &str = "OTEL_RESOURCE_ATTRIBUTES";
 const OTEL_SERVICE_NAME: &str = "OTEL_SERVICE_NAME";
@@ -20,7 +19,7 @@ pub struct EnvResourceDetector {
 }
 
 impl ResourceDetector for EnvResourceDetector {
-    fn detect(&self, _timeout: Duration) -> Resource {
+    fn detect(&self) -> Resource {
         match env::var(OTEL_RESOURCE_ATTRIBUTES) {
             Ok(s) if !s.is_empty() => construct_otel_resources(s),
             Ok(_) | Err(_) => Resource::new(vec![]), // return empty resource
@@ -72,7 +71,7 @@ fn construct_otel_resources(s: String) -> Resource {
 pub struct SdkProvidedResourceDetector;
 
 impl ResourceDetector for SdkProvidedResourceDetector {
-    fn detect(&self, _timeout: Duration) -> Resource {
+    fn detect(&self) -> Resource {
         Resource::new(vec![KeyValue::new(
             super::SERVICE_NAME,
             env::var(OTEL_SERVICE_NAME)
@@ -81,7 +80,7 @@ impl ResourceDetector for SdkProvidedResourceDetector {
                 .map(Value::from)
                 .or_else(|| {
                     EnvResourceDetector::new()
-                        .detect(Duration::from_secs(0))
+                        .detect()
                         .get(Key::new(super::SERVICE_NAME))
                 })
                 .unwrap_or_else(|| "unknown_service".into()),
@@ -96,7 +95,6 @@ mod tests {
     };
     use crate::resource::{EnvResourceDetector, Resource, ResourceDetector};
     use opentelemetry::{Key, KeyValue, Value};
-    use std::time::Duration;
 
     #[test]
     fn test_read_from_env() {
@@ -110,7 +108,7 @@ mod tests {
             ],
             || {
                 let detector = EnvResourceDetector::new();
-                let resource = detector.detect(Duration::from_secs(5));
+                let resource = detector.detect();
                 assert_eq!(
                     resource,
                     Resource::new(vec![
@@ -124,21 +122,21 @@ mod tests {
         );
 
         let detector = EnvResourceDetector::new();
-        let resource = detector.detect(Duration::from_secs(5));
+        let resource = detector.detect();
         assert!(resource.is_empty());
     }
 
     #[test]
     fn test_sdk_provided_resource_detector() {
         // Ensure no env var set
-        let no_env = SdkProvidedResourceDetector.detect(Duration::from_secs(1));
+        let no_env = SdkProvidedResourceDetector.detect();
         assert_eq!(
             no_env.get(Key::from_static_str(crate::resource::SERVICE_NAME)),
             Some(Value::from("unknown_service")),
         );
 
         temp_env::with_var(OTEL_SERVICE_NAME, Some("test service"), || {
-            let with_service = SdkProvidedResourceDetector.detect(Duration::from_secs(1));
+            let with_service = SdkProvidedResourceDetector.detect();
             assert_eq!(
                 with_service.get(Key::from_static_str(crate::resource::SERVICE_NAME)),
                 Some(Value::from("test service")),
@@ -149,7 +147,7 @@ mod tests {
             OTEL_RESOURCE_ATTRIBUTES,
             Some("service.name=test service1"),
             || {
-                let with_service = SdkProvidedResourceDetector.detect(Duration::from_secs(1));
+                let with_service = SdkProvidedResourceDetector.detect();
                 assert_eq!(
                     with_service.get(Key::from_static_str(crate::resource::SERVICE_NAME)),
                     Some(Value::from("test service1")),
@@ -164,7 +162,7 @@ mod tests {
                 (OTEL_RESOURCE_ATTRIBUTES, Some("service.name=test service3")),
             ],
             || {
-                let with_service = SdkProvidedResourceDetector.detect(Duration::from_secs(1));
+                let with_service = SdkProvidedResourceDetector.detect();
                 assert_eq!(
                     with_service.get(Key::from_static_str(crate::resource::SERVICE_NAME)),
                     Some(Value::from("test service"))

opentelemetry-sdk/src/resource/mod.rs

@@ -35,7 +35,6 @@ use std::borrow::Cow;
 use std::collections::{hash_map, HashMap};
 use std::ops::Deref;
 use std::sync::Arc;
-use std::time::Duration;
 
 /// Inner structure of `Resource` holding the actual data.
 /// This structure is designed to be shared among `Resource` instances via `Arc`.
@@ -54,14 +53,11 @@ pub struct Resource {
 
 impl Default for Resource {
     fn default() -> Self {
-        Self::from_detectors(
-            Duration::from_secs(0),
-            vec![
-                Box::new(SdkProvidedResourceDetector),
-                Box::new(TelemetryResourceDetector),
-                Box::new(EnvResourceDetector::new()),
-            ],
-        )
+        Self::from_detectors(vec![
+            Box::new(SdkProvidedResourceDetector),
+            Box::new(TelemetryResourceDetector),
+            Box::new(EnvResourceDetector::new()),
+        ])
     }
 }
 
@@ -137,10 +133,10 @@ impl Resource {
     /// Create a new `Resource` from resource detectors.
     ///
     /// timeout will be applied to each detector.
-    pub fn from_detectors(timeout: Duration, detectors: Vec<Box<dyn ResourceDetector>>) -> Self {
+    pub fn from_detectors(detectors: Vec<Box<dyn ResourceDetector>>) -> Self {
         let mut resource = Resource::empty();
         for detector in detectors {
-            let detected_res = detector.detect(timeout);
+            let detected_res = detector.detect();
             // This call ensures that if the Arc is not uniquely owned,
             // the data is cloned before modification, preserving safety.
             // If the Arc is uniquely owned, it simply returns a mutable reference to the data.
@@ -262,13 +258,12 @@ pub trait ResourceDetector {
     ///
     /// If source information to construct a Resource is invalid, for example,
     /// missing required values. an empty Resource should be returned.
-    fn detect(&self, timeout: Duration) -> Resource;
+    fn detect(&self) -> Resource;
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
-    use std::time;
 
     #[test]
     fn new_resource() {
@@ -368,10 +363,7 @@ mod tests {
             ],
             || {
                 let detector = EnvResourceDetector::new();
-                let resource = Resource::from_detectors(
-                    time::Duration::from_secs(5),
-                    vec![Box::new(detector)],
-                );
+                let resource = Resource::from_detectors(vec![Box::new(detector)]);
                 assert_eq!(
                     resource,
                     Resource::new(vec![

opentelemetry-sdk/src/resource/telemetry.rs

@@ -1,7 +1,6 @@
 use crate::resource::ResourceDetector;
 use crate::Resource;
 use opentelemetry::KeyValue;
-use std::time::Duration;
 
 /// Detect the telemetry SDK information used to capture data recorded by the instrumentation libraries.
 ///
@@ -16,7 +15,7 @@ use std::time::Duration;
 pub struct TelemetryResourceDetector;
 
 impl ResourceDetector for TelemetryResourceDetector {
-    fn detect(&self, _timeout: Duration) -> Resource {
+    fn detect(&self) -> Resource {
         Resource::new(vec![
             KeyValue::new(super::TELEMETRY_SDK_NAME, "opentelemetry"),
             KeyValue::new(super::TELEMETRY_SDK_LANGUAGE, "rust"),

opentelemetry-zipkin/src/exporter/mod.rs

@@ -19,7 +19,6 @@ use opentelemetry_semantic_conventions as semcov;
 use std::borrow::Cow;
 use std::net::SocketAddr;
 use std::sync::Arc;
-use std::time::Duration;
 
 /// Zipkin span exporter
 #[derive(Debug)]
@@ -112,7 +111,7 @@ impl ZipkinPipelineBuilder {
             (config, Endpoint::new(service_name, self.service_addr))
         } else {
             let service_name = SdkProvidedResourceDetector
-                .detect(Duration::from_secs(0))
+                .detect()
                 .get(semcov::resource::SERVICE_NAME.into())
                 .unwrap()
                 .to_string();