Add AwsQueryCompatible trait

This commit introduces the `aws.protocols#awsQueryCompatible` trait which allows backward compatibility when migrating from awsQuery to awsJson1_0.

docs/source-1.0/spec/aws/aws-json.rst.template

@@ -192,6 +192,52 @@ In ``awsJson1_1``, servers SHOULD only send the error's
 for both protocols. See `Operation error serialization`_ for full details on how to
 deserialize errors for |quoted shape name|.
 
+.. smithy-trait:: aws.protocols#awsQueryError
+.. _aws.protocols#awsQueryError-trait:
+
+------------------------------------------
+``aws.protocols#awsQueryCompatible`` trait
+------------------------------------------
+
+Summary
+    When using the :ref:`awsQuery <aws.protocols#awsQuery-trait>` protocol,
+    custom ``Code`` and ``HTTP response code`` values can be defined for an error response via
+    the :ref:`awsQueryError <aws.protocols#awsQueryError-trait>` trait.
+
+    The ``awsQueryCompatible`` trait allows services to backward compatibly migrate from ``awsQuery`` to
+    :ref:`awsJson1_0 <aws.protocols#awsJson1_0-trait>` without removing values defined in the ``awsQueryError`` trait.
+
+    This trait adds the ``x-amzn-query-error`` header in the form of ``Code;Fault`` to error responses.
+    ``Code`` is the value defined in the :ref:`awsQueryError <aws.protocols#awsQueryError-trait>`,
+    and ``Fault`` is one of ``Sender`` or ``Receiver``.
+
+Trait selector
+    ``service [trait|awsJson1_0]``
+
+Value type
+    Annotation trait
+
+.. code-block:: smithy
+
+    $version: "1"
+    use aws.protocols#awsQueryCompatible
+    use aws.protocols#awsQueryError
+    use aws.protocols#awsJson1_0
+
+    @awsQueryCompatible
+    @awsJson1_0
+    service MyService {
+        version: "2020-02-05"
+    }
+
+    @awsQueryError(
+        code: "InvalidThing",
+        httpResponseCode: 400,
+    )
+    @error("client")
+    structure InvalidThingException {
+        message: String
+    }
 
 -------------------------
 Protocol compliance tests

docs/source-2.0/aws/protocols/aws-json.rst.template

@@ -195,6 +195,52 @@ In ``awsJson1_1``, servers SHOULD only send the error's
 for both protocols. See `Operation error serialization`_ for full details on how to
 deserialize errors for |quoted shape name|.
 
+.. smithy-trait:: aws.protocols#awsQueryError
+.. _aws.protocols#awsQueryError-trait:
+
+------------------------------------------
+``aws.protocols#awsQueryCompatible`` trait
+------------------------------------------
+
+Summary
+    When using the :ref:`awsQuery <aws.protocols#awsQuery-trait>` protocol,
+    custom ``Code`` and ``HTTP response code`` values can be defined for an error response via
+    the :ref:`awsQueryError <aws.protocols#awsQueryError-trait>` trait.
+
+    The ``awsQueryCompatible`` trait allows services to backward compatibly migrate from ``awsQuery`` to
+    :ref:`awsJson1_0 <aws.protocols#awsJson1_0-trait>` without removing values defined in the ``awsQueryError`` trait.
+
+    This trait adds the ``x-amzn-query-error`` header in the form of ``Code;Fault`` to error responses.
+    ``Code`` is the value defined in the :ref:`awsQueryError <aws.protocols#awsQueryError-trait>`,
+    and ``Fault`` is one of ``Sender`` or ``Receiver``.
+
+Trait selector
+    ``service [trait|awsJson1_0]``
+
+Value type
+    Annotation trait
+
+.. code-block:: smithy
+
+    $version: "2"
+    use aws.protocols#awsQueryCompatible
+    use aws.protocols#awsQueryError
+    use aws.protocols#awsJson1_0
+
+    @awsQueryCompatible
+    @awsJson1_0
+    service MyService {
+        version: "2020-02-05"
+    }
+
+    @awsQueryError(
+        code: "InvalidThing",
+        httpResponseCode: 400,
+    )
+    @error("client")
+    structure InvalidThingException {
+        message: String
+    }
 
 -------------------------
 Protocol compliance tests

smithy-aws-protocol-tests/model/awsJson1_0WithQueryCompatible/errors.smithy

@@ -0,0 +1,53 @@
+$version: "2.0"
+
+namespace aws.protocoltests.json10
+
+use aws.protocols#awsJson1_0
+use aws.protocols#awsQueryError
+use smithy.test#httpRequestTests
+use smithy.test#httpResponseTests
+
+@idempotent
+operation GreetingWithError {
+    input: GreetingWithErrorInput,
+    output: GreetingWithErrorOutput,
+    errors: [InvalidGreetingError]
+}
+
+@input
+structure GreetingWithErrorInput {
+    greeting: String,
+}
+
+@output
+structure GreetingWithErrorOutput {
+    greeting: String,
+}
+
+@awsQueryError(
+    code: "CustomGreetingErrorCode",
+    httpResponseCode: 402
+)
+@error("client")
+structure InvalidGreetingError {
+    Message: String,
+}
+
+apply InvalidGreeting @httpResponseTests([
+    {
+        id: "Json10WithQueryCompatibleGreetingError",
+        documentation: "@awsQueryCompatible trait is applied to service",
+        protocol: awsJson1_0,
+        params: {
+            Message: "Hi"
+        },
+        code: 402,
+        headers: {
+            "Content-Type": "application/x-amz-json-1.0",
+            "x-amzn-query-error": "CustomGreetingErrorCode;Sender"
+        },
+        bodyMediaType: "application/json",
+        body: "{\"__type\": \"InvalidGreetingError\",\"Message\": \"Hi\"}",
+        appliesTo: "client"
+    },
+])

smithy-aws-protocol-tests/model/awsJson1_0WithQueryCompatible/main.smithy

@@ -0,0 +1,18 @@
+$version: "2.0"
+
+namespace aws.protocoltests.json10
+
+use aws.api#service
+use aws.protocols#awsJson1_0
+use aws.protocols#awsQueryCompatible
+use smithy.test#httpRequestTests
+use smithy.test#httpResponseTests
+
+
+@service(sdkId: "JSON RPC 10 with Query Compatible Trait")
+@awsQueryCompatible
+@awsJson1_0
+service JsonRpc10WithQueryCompatible {
+    version: "2020-07-14",
+    operations: [GreetingWithErrors]
+}

smithy-aws-traits/src/main/java/software/amazon/smithy/aws/traits/protocols/AwsQueryCompatibleTrait.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package software.amazon.smithy.aws.traits.protocols;
+
+import software.amazon.smithy.model.node.Node;
+import software.amazon.smithy.model.node.ObjectNode;
+import software.amazon.smithy.model.shapes.ShapeId;
+import software.amazon.smithy.model.traits.AnnotationTrait;
+
+public final class AwsQueryCompatibleTrait extends AnnotationTrait {
+
+    public static final ShapeId ID = ShapeId.from("aws.protocols#awsQueryCompatible");
+
+    public AwsQueryCompatibleTrait(ObjectNode node) {
+        super(ID, node);
+    }
+
+    public AwsQueryCompatibleTrait() {
+        this(Node.objectNode());
+    }
+
+    public static final class Provider extends AnnotationTrait.Provider<AwsQueryCompatibleTrait> {
+        public Provider() {
+            super(ID, AwsQueryCompatibleTrait::new);
+        }
+    }
+}

smithy-aws-traits/src/main/resources/META-INF/services/software.amazon.smithy.model.traits.TraitService

@@ -12,6 +12,7 @@ software.amazon.smithy.aws.traits.clientendpointdiscovery.ClientDiscoveredEndpoi
 software.amazon.smithy.aws.traits.customizations.S3UnwrappedXmlOutputTrait$Provider
 software.amazon.smithy.aws.traits.HttpChecksumTrait$Provider
 software.amazon.smithy.aws.traits.protocols.AwsQueryErrorTrait$Provider
+software.amazon.smithy.aws.traits.protocols.AwsQueryCompatibleTrait$Provider
 software.amazon.smithy.aws.traits.protocols.AwsQueryTrait$Provider
 software.amazon.smithy.aws.traits.protocols.Ec2QueryNameTrait$Provider
 software.amazon.smithy.aws.traits.protocols.Ec2QueryTrait$Provider

smithy-aws-traits/src/main/resources/META-INF/smithy/aws.protocols.smithy

@@ -81,6 +81,10 @@ structure awsQueryError {
     httpResponseCode: Integer
 }
 
+/// Enable backward compatibility when migrating from awsQuery to awsJson protocol
+@trait(selector: "service [trait|aws.protocols#awsJson1_0]")
+structure awsQueryCompatible {}
+
 /// An RPC-based protocol that sends 'POST' requests in the body as Amazon EC2
 /// formatted `x-www-form-urlencoded` strings and responses in XML documents.
 /// This protocol does not use HTTP binding traits.

smithy-aws-traits/src/test/resources/software/amazon/smithy/aws/traits/errorfiles/aws-query-compatible.smithy

@@ -0,0 +1,23 @@
+$version: "2.0"
+
+namespace smithy.example
+
+use aws.protocols#awsQueryCompatible
+use aws.protocols#awsQueryError
+use aws.protocols#awsJson1_0
+
+@awsQueryCompatible
+@awsJson1_0
+service MyService {
+    version: "2020-02-05",
+    errors: [InvalidThingException]
+}
+
+@awsQueryError(
+    code: "InvalidThing",
+    httpResponseCode: 400,
+)
+@error("client")
+structure InvalidThingException {
+    message: String
+}

smithy-aws-traits/src/test/resources/software/amazon/smithy/aws/traits/errorfiles/protocols/aws-query-compatible-does-not-support-non-aws-json.errors

@@ -0,0 +1,2 @@
+[WARNING] smithy.example#MyService: This shape applies a trait that is deprecated: aws.protocols#awsQuery | DeprecatedTrait
+[ERROR] smithy.example#MyService: Trait `aws.protocols#awsQueryCompatible` cannot be applied to `smithy.example#MyService`. This trait may only be applied to shapes that match the following selector: service [trait|aws.protocols#awsJson1_0] | TraitTarget

smithy-aws-traits/src/test/resources/software/amazon/smithy/aws/traits/errorfiles/protocols/aws-query-compatible-does-not-support-non-aws-json.smithy

@@ -0,0 +1,24 @@
+$version: "2.0"
+
+namespace smithy.example
+
+use aws.protocols#awsQueryCompatible
+use aws.protocols#awsQueryError
+use aws.protocols#awsQuery
+
+@awsQueryCompatible
+@awsQuery
+@xmlNamespace(uri: "https://example.com")
+service MyService {
+    version: "2020-02-05",
+    errors: [InvalidThingException]
+}
+
+@awsQueryError(
+    code: "InvalidThing",
+    httpResponseCode: 400,
+)
+@error("client")
+structure InvalidThingException {
+    message: String
+}