add changelog, remove println

Author: lalitb

opentelemetry-sdk/CHANGELOG.md

@@ -370,6 +370,25 @@ let processor = BatchSpanProcessor::builder(exporter)
     .build();
 ```
 
+- **Breaking**
+ - The public API changes in the Tracing:
+   - Before:
+      ```rust
+        fn SpanExporter::export(&mut self, batch: Vec<SpanData>) -> BoxFuture<'static, ExportResult>;
+        fn SpanExporter::shutdown(&mut self);
+        fn SpanExporter::force_flush(&mut self) -> BoxFuture<'static, ExportResult>
+        fn TraerProvider::shutdown(&self) -> TraceResult<()>
+        fn TracerProvider::force_flush(&self) -> Vec<TraceResult<()>>
+      ```
+    - After:
+      ```rust
+        fn SpanExporter::export(&mut self, batch: Vec<SpanData>) -> BoxFuture<'static, OTelSdkResult>;
+        fn SpanExporter::shutdown(&mut self) -> OTelSdkResult;
+        fn SpanExporter::force_flush(&mut self) -> BoxFuture<'static, OTelSdkResult>
+        fn TraerProvider::shutdown(&self) -> OTelSdkResult;
+        fn TracerProvider::force_flush(&self) -> OTelSdkResult;
+      ```
+
 ## 0.27.1
 
 Released 2024-Nov-27

opentelemetry-sdk/src/trace/export.rs

@@ -63,8 +63,8 @@ pub trait SpanExporter: Send + Sync + Debug {
     /// implemented as a blocking API or an asynchronous API which notifies the caller via
     /// a callback or an event. OpenTelemetry client authors can decide if they want to
     /// make the flush timeout configurable.
-    fn force_flush(&mut self) -> BoxFuture<'static, OTelSdkResult> {
-        Box::pin(async { Ok(()) })
+    fn force_flush(&mut self) -> OTelSdkResult {
+        Ok(())
     }
 
     /// Set the resource for the exporter.

opentelemetry-sdk/src/trace/provider.rs

@@ -821,7 +821,6 @@ mod tests {
 
             // Explicitly shut down the tracer provider
             let shutdown_result = tracer_provider1.shutdown();
-            println!("----->>> Shutdown result: {:?}", shutdown_result);
             assert!(shutdown_result.is_ok());
 
             // Verify that shutdown was called exactly once