OperationShape::NAME as ShapeId

codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ServerOperationGenerator.kt

@@ -13,6 +13,7 @@ import software.amazon.smithy.rust.codegen.core.rustlang.rust
 import software.amazon.smithy.rust.codegen.core.rustlang.rustTemplate
 import software.amazon.smithy.rust.codegen.core.rustlang.writable
 import software.amazon.smithy.rust.codegen.core.smithy.CodegenContext
+import software.amazon.smithy.rust.codegen.core.util.dq
 import software.amazon.smithy.rust.codegen.core.util.toPascalCase
 import software.amazon.smithy.rust.codegen.server.smithy.ServerCargoDependency
 
@@ -49,12 +50,13 @@ class ServerOperationGenerator(
         val requestFmt = generator.requestFmt()
         val responseFmt = generator.responseFmt()
 
+        val operationIdAbsolute = operationId.toString().replace("#", "##")
         writer.rustTemplate(
             """
             pub struct $operationName;
 
             impl #{SmithyHttpServer}::operation::OperationShape for $operationName {
-                const NAME: &'static str = "${operationId.toString().replace("#", "##")}";
+                const NAME: #{SmithyHttpServer}::shape_id::ShapeId = #{SmithyHttpServer}::shape_id::ShapeId::new(${operationIdAbsolute.dq()}, ${operationId.namespace.dq()}, ${operationId.name.dq()});
 
                 type Input = crate::input::${operationName}Input;
                 type Output = crate::output::${operationName}Output;

codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/ServerServiceGenerator.kt

@@ -478,13 +478,13 @@ class ServerServiceGenerator(
     }
 
     private fun missingOperationsError(): Writable = writable {
-        rust(
+        rustTemplate(
             """
             /// The error encountered when calling the [`$builderName::build`] method if one or more operation handlers are not
             /// specified.
             ##[derive(Debug)]
             pub struct MissingOperationsError {
-                operation_names2setter_methods: std::collections::HashMap<&'static str, &'static str>,
+                operation_names2setter_methods: std::collections::HashMap<#{SmithyHttpServer}::shape_id::ShapeId, &'static str>,
             }
 
             impl std::fmt::Display for MissingOperationsError {
@@ -495,7 +495,7 @@ class ServerServiceGenerator(
                         We are missing handlers for the following operations:\n",
                     )?;
                     for operation_name in self.operation_names2setter_methods.keys() {
-                        writeln!(f, "- {}", operation_name)?;
+                        writeln!(f, "- {}", operation_name.absolute())?;
                     }
 
                     writeln!(f, "\nUse the dedicated methods on `$builderName` to register the missing handlers:")?;
@@ -508,6 +508,7 @@ class ServerServiceGenerator(
 
             impl std::error::Error for MissingOperationsError {}
             """,
+            *codegenScope,
         )
     }
 

examples/pokemon-service/src/plugin.rs

@@ -8,6 +8,7 @@
 use aws_smithy_http_server::{
     operation::{Operation, OperationShape},
     plugin::{Plugin, PluginPipeline, PluginStack},
+    shape_id::ShapeId,
 };
 use tower::{layer::util::Stack, Layer, Service};
 
@@ -17,7 +18,7 @@ use std::task::{Context, Poll};
 #[derive(Clone, Debug)]
 pub struct PrintService<S> {
     inner: S,
-    name: &'static str,
+    id: ShapeId,
 }
 
 impl<R, S> Service<R> for PrintService<S>
@@ -33,23 +34,23 @@ where
     }
 
     fn call(&mut self, req: R) -> Self::Future {
-        println!("Hi {}", self.name);
+        println!("Hi {}", self.id.absolute());
         self.inner.call(req)
     }
 }
 
 /// A [`Layer`] which constructs the [`PrintService`].
 #[derive(Debug)]
 pub struct PrintLayer {
-    name: &'static str,
+    id: ShapeId,
 }
 impl<S> Layer<S> for PrintLayer {
     type Service = PrintService<S>;
 
     fn layer(&self, service: S) -> Self::Service {
         PrintService {
             inner: service,
-            name: self.name,
+            id: self.id.clone(),
         }
     }
 }
@@ -66,7 +67,7 @@ where
     type Layer = Stack<L, PrintLayer>;
 
     fn map(&self, input: Operation<S, L>) -> Operation<Self::Service, Self::Layer> {
-        input.layer(PrintLayer { name: Op::NAME })
+        input.layer(PrintLayer { id: Op::NAME })
     }
 }
 

rust-runtime/aws-smithy-http-server/src/extension.rs

@@ -19,29 +19,28 @@
 //!
 //! [extensions]: https://docs.rs/http/latest/http/struct.Extensions.html
 
-use std::{fmt, future::Future, ops::Deref, pin::Pin, task::Context, task::Poll};
+use std::{fmt, fmt::Debug, future::Future, ops::Deref, pin::Pin, task::Context, task::Poll};
+use std::fmt::{Display, Formatter};
+use std::hash::Hash;
 
 use futures_util::ready;
 use futures_util::TryFuture;
 use thiserror::Error;
 use tower::{layer::util::Stack, Layer, Service};
+use crate::extension;
 
 use crate::operation::{Operation, OperationShape};
 use crate::plugin::{plugin_from_operation_name_fn, OperationNameFn, Plugin, PluginPipeline, PluginStack};
+use crate::shape_id::ShapeId;
 
 pub use crate::request::extension::{Extension, MissingExtension};
 
 /// Extension type used to store information about Smithy operations in HTTP responses.
 /// This extension type is inserted, via the [`OperationExtensionPlugin`], whenever it has been correctly determined
 /// that the request should be routed to a particular operation. The operation handler might not even get invoked
 /// because the request fails to deserialize into the modeled operation input.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub struct OperationExtension {
-    absolute: &'static str,
-
-    namespace: &'static str,
-    name: &'static str,
-}
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+pub struct OperationExtension(pub ShapeId);
 
 /// An error occurred when parsing an absolute operation shape ID.
 #[derive(Debug, Clone, Error, PartialEq, Eq)]
@@ -53,31 +52,25 @@ pub enum ParseError {
 
 #[allow(deprecated)]
 impl OperationExtension {
-    /// Creates a new [`OperationExtension`] from the absolute shape ID.
-    pub fn new(absolute_operation_id: &'static str) -> Result<Self, ParseError> {
-        let (namespace, name) = absolute_operation_id
-            .rsplit_once('#')
-            .ok_or(ParseError::MissingNamespace)?;
-        Ok(Self {
-            absolute: absolute_operation_id,
-            namespace,
-            name,
-        })
-    }
-
     /// Returns the Smithy model namespace.
     pub fn namespace(&self) -> &'static str {
-        self.namespace
+        self.0.namespace()
     }
 
     /// Returns the Smithy operation name.
     pub fn name(&self) -> &'static str {
-        self.name
+        self.0.name()
     }
 
     /// Returns the absolute operation shape ID.
     pub fn absolute(&self) -> &'static str {
-        self.absolute
+        self.0.absolute()
+    }
+}
+
+impl Display for OperationExtension {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        self.0.fmt(f)
     }
 }
 
@@ -154,7 +147,7 @@ impl<S> Layer<S> for OperationExtensionLayer {
 }
 
 /// A [`Plugin`] which applies [`OperationExtensionLayer`] to every operation.
-pub struct OperationExtensionPlugin(OperationNameFn<fn(&'static str) -> OperationExtensionLayer>);
+pub struct OperationExtensionPlugin(OperationNameFn<fn(ShapeId) -> OperationExtensionLayer>);
 
 impl fmt::Debug for OperationExtensionPlugin {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
@@ -170,7 +163,7 @@ where
     type Layer = Stack<L, OperationExtensionLayer>;
 
     fn map(&self, input: Operation<S, L>) -> Operation<Self::Service, Self::Layer> {
-        <OperationNameFn<fn(&'static str) -> OperationExtensionLayer> as Plugin<P, Op, S, L>>::map(&self.0, input)
+        <OperationNameFn<fn(ShapeId) -> OperationExtensionLayer> as Plugin<P, Op, S, L>>::map(&self.0, input)
     }
 }
 
@@ -184,9 +177,8 @@ pub trait OperationExtensionExt<P> {
 
 impl<P> OperationExtensionExt<P> for PluginPipeline<P> {
     fn insert_operation_extension(self) -> PluginPipeline<PluginStack<OperationExtensionPlugin, P>> {
-        let plugin = OperationExtensionPlugin(plugin_from_operation_name_fn(|name| {
-            let operation_extension = OperationExtension::new(name).expect("Operation name is malformed, this should never happen. Please file an issue against https://github.com/awslabs/smithy-rs");
-            OperationExtensionLayer(operation_extension)
+        let plugin = OperationExtensionPlugin(plugin_from_operation_name_fn(|shape_id| {
+            OperationExtensionLayer(extension::OperationExtension(shape_id.clone()))
         }));
         self.push(plugin)
     }

rust-runtime/aws-smithy-http-server/src/instrumentation/layer.rs

@@ -5,21 +5,23 @@
 
 use tower::Layer;
 
+use crate::shape_id::ShapeId;
+
 use super::{InstrumentOperation, MakeIdentity};
 
 /// A [`Layer`] used to apply [`InstrumentOperation`].
 #[derive(Debug)]
 pub struct InstrumentLayer<RequestMakeFmt = MakeIdentity, ResponseMakeFmt = MakeIdentity> {
-    operation_name: &'static str,
+    operation_id: ShapeId,
     make_request: RequestMakeFmt,
     make_response: ResponseMakeFmt,
 }
 
 impl InstrumentLayer {
     /// Constructs a new [`InstrumentLayer`] with no data redacted.
-    pub fn new(operation_name: &'static str) -> Self {
+    pub fn new(operation_id: ShapeId) -> Self {
         Self {
-            operation_name,
+            operation_id,
             make_request: MakeIdentity,
             make_response: MakeIdentity,
         }
@@ -32,7 +34,7 @@ impl<RequestMakeFmt, ResponseMakeFmt> InstrumentLayer<RequestMakeFmt, ResponseMa
     /// The argument is typically [`RequestFmt`](super::sensitivity::RequestFmt).
     pub fn request_fmt<R>(self, make_request: R) -> InstrumentLayer<R, ResponseMakeFmt> {
         InstrumentLayer {
-            operation_name: self.operation_name,
+            operation_id: self.operation_id,
             make_request,
             make_response: self.make_response,
         }
@@ -43,7 +45,7 @@ impl<RequestMakeFmt, ResponseMakeFmt> InstrumentLayer<RequestMakeFmt, ResponseMa
     /// The argument is typically [`ResponseFmt`](super::sensitivity::ResponseFmt).
     pub fn response_fmt<R>(self, make_response: R) -> InstrumentLayer<RequestMakeFmt, R> {
         InstrumentLayer {
-            operation_name: self.operation_name,
+            operation_id: self.operation_id,
             make_request: self.make_request,
             make_response,
         }
@@ -58,7 +60,7 @@ where
     type Service = InstrumentOperation<S, RequestMakeFmt, ResponseMakeFmt>;
 
     fn layer(&self, service: S) -> Self::Service {
-        InstrumentOperation::new(service, self.operation_name)
+        InstrumentOperation::new(service, self.operation_id.clone())
             .request_fmt(self.make_request.clone())
             .response_fmt(self.make_response.clone())
     }

rust-runtime/aws-smithy-http-server/src/instrumentation/plugin.rs

@@ -26,7 +26,8 @@ where
     type Layer = Stack<L, InstrumentLayer<Op::RequestFmt, Op::ResponseFmt>>;
 
     fn map(&self, operation: Operation<S, L>) -> Operation<Self::Service, Self::Layer> {
-        let layer = InstrumentLayer::new(Op::NAME)
+        let operation_id = Op::NAME;
+        let layer = InstrumentLayer::new(operation_id)
             .request_fmt(Op::request_fmt())
             .response_fmt(Op::response_fmt());
         operation.layer(layer)

rust-runtime/aws-smithy-http-server/src/instrumentation/service.rs

@@ -16,6 +16,8 @@ use http::{HeaderMap, Request, Response, StatusCode, Uri};
 use tower::Service;
 use tracing::{debug, debug_span, instrument::Instrumented, Instrument};
 
+use crate::shape_id::ShapeId;
+
 use super::{MakeDebug, MakeDisplay, MakeIdentity};
 
 pin_project_lite::pin_project! {
@@ -103,17 +105,17 @@ where
 #[derive(Debug, Clone)]
 pub struct InstrumentOperation<S, RequestMakeFmt = MakeIdentity, ResponseMakeFmt = MakeIdentity> {
     inner: S,
-    operation_name: &'static str,
+    operation_id: ShapeId,
     make_request: RequestMakeFmt,
     make_response: ResponseMakeFmt,
 }
 
 impl<S> InstrumentOperation<S> {
     /// Constructs a new [`InstrumentOperation`] with no data redacted.
-    pub fn new(inner: S, operation_name: &'static str) -> Self {
+    pub fn new(inner: S, operation_id: ShapeId) -> Self {
         Self {
             inner,
-            operation_name,
+            operation_id,
             make_request: MakeIdentity,
             make_response: MakeIdentity,
         }
@@ -127,7 +129,7 @@ impl<S, RequestMakeFmt, ResponseMakeFmt> InstrumentOperation<S, RequestMakeFmt,
     pub fn request_fmt<R>(self, make_request: R) -> InstrumentOperation<S, R, ResponseMakeFmt> {
         InstrumentOperation {
             inner: self.inner,
-            operation_name: self.operation_name,
+            operation_id: self.operation_id,
             make_request,
             make_response: self.make_response,
         }
@@ -139,7 +141,7 @@ impl<S, RequestMakeFmt, ResponseMakeFmt> InstrumentOperation<S, RequestMakeFmt,
     pub fn response_fmt<R>(self, make_response: R) -> InstrumentOperation<S, RequestMakeFmt, R> {
         InstrumentOperation {
             inner: self.inner,
-            operation_name: self.operation_name,
+            operation_id: self.operation_id,
             make_request: self.make_request,
             make_response,
         }
@@ -170,7 +172,7 @@ where
         let span = {
             let headers = self.make_request.make_debug(request.headers());
             let uri = self.make_request.make_display(request.uri());
-            debug_span!("request", operation = %self.operation_name, method = %request.method(), %uri, ?headers)
+            debug_span!("request", operation = %self.operation_id.absolute(), method = %request.method(), %uri, ?headers)
         };
 
         InstrumentedFuture {

rust-runtime/aws-smithy-http-server/src/lib.rs

@@ -28,6 +28,7 @@ pub mod response;
 pub mod routing;
 #[doc(hidden)]
 pub mod runtime_error;
+pub mod shape_id;
 
 #[doc(inline)]
 pub(crate) use self::error::Error;

rust-runtime/aws-smithy-http-server/src/operation/shape.rs

@@ -3,14 +3,15 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+use crate::shape_id::ShapeId;
 use super::{Handler, IntoService, Normalize, Operation, OperationService};
 
 /// Models the [Smithy Operation shape].
 ///
 /// [Smithy Operation shape]: https://awslabs.github.io/smithy/1.0/spec/core/model.html#operation
 pub trait OperationShape {
     /// The name of the operation.
-    const NAME: &'static str;
+    const NAME: ShapeId;
 
     /// The operation input.
     type Input;

rust-runtime/aws-smithy-http-server/src/plugin/closure.rs

@@ -6,6 +6,7 @@
 use tower::layer::util::Stack;
 
 use crate::operation::{Operation, OperationShape};
+use crate::shape_id::ShapeId;
 
 use super::Plugin;
 
@@ -16,14 +17,15 @@ pub struct OperationNameFn<F> {
 
 impl<P, Op, S, ExistingLayer, NewLayer, F> Plugin<P, Op, S, ExistingLayer> for OperationNameFn<F>
 where
-    F: Fn(&'static str) -> NewLayer,
+    F: Fn(ShapeId) -> NewLayer,
     Op: OperationShape,
 {
     type Service = S;
     type Layer = Stack<ExistingLayer, NewLayer>;
 
     fn map(&self, input: Operation<S, ExistingLayer>) -> Operation<Self::Service, Self::Layer> {
-        input.layer((self.f)(Op::NAME))
+        let operation_id = Op::NAME;
+        input.layer((self.f)(operation_id))
     }
 }
 
@@ -55,7 +57,7 @@ where
 /// ```
 pub fn plugin_from_operation_name_fn<L, F>(f: F) -> OperationNameFn<F>
 where
-    F: Fn(&'static str) -> L,
+    F: Fn(ShapeId) -> L,
 {
     OperationNameFn { f }
 }