Make S3 SelectObjectContentInput ScanRange members pointers

.changelog/0f5bdd8a631d4196bba7718e0f50e426.json

@@ -0,0 +1,8 @@
+{
+    "id": "0f5bdd8a-631d-4196-bba7-718e0f50e426",
+    "type": "bugfix",
+    "description": "Fix the issue in the Amazon S3 SelectObjectContent method's parameter serialization where the Start and End parameters of the ScanRange were not being serialized correctly. The Amazon S3 API client has been updated with a breaking change to make ScanRange members pointer types.",
+    "modules": [
+        "service/s3"
+    ]
+}

.changelog/1a2c46b4f6044155b3dd5979b26fd38e.json

@@ -0,0 +1,8 @@
+{
+    "id": "1a2c46b4-f604-4155-b3dd-5979b26fd38e",
+    "type": "announcement",
+    "description": "This release contains a breaking change to the Amazon S3 API client's SelectObjectContent method. ScanRange members [Start and End], of the SelectObjectContentInput were changed from value, to pointer types. Your applications using SelectObjectContent with ScanRange parameter will fail to compile and need to be updated to use pointer types for the Start and End numeric parameters. You can use the SDK helper utility [aws.Int64](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/aws#Int64) to convert literal numbers to pointer types.",
+    "modules": [
+        "service/s3"
+    ]
+}

codegen/smithy-aws-go-codegen/src/main/java/software/amazon/smithy/aws/go/codegen/customization/S3ScanRangeMembersClientOptional.java

@@ -0,0 +1,46 @@
+package software.amazon.smithy.aws.go.codegen.customization;
+
+import software.amazon.smithy.go.codegen.GoSettings;
+import software.amazon.smithy.go.codegen.integration.GoIntegration;
+import software.amazon.smithy.model.Model;
+import software.amazon.smithy.model.shapes.ShapeId;
+import software.amazon.smithy.model.shapes.StructureShape;
+import software.amazon.smithy.model.traits.ClientOptionalTrait;
+
+public class S3ScanRangeMembersClientOptional implements GoIntegration {
+
+    public static final ShapeId S3_SERVICE_SHAPE = ShapeId.from("com.amazonaws.s3#AmazonS3");
+    public static final ShapeId SCAN_RANGE_SHAPE = ShapeId.from("com.amazonaws.s3#ScanRange");
+    public static final String[] MEMBERS_TO_MAKE_OPTIONAL = { "Start", "End" };
+
+    /**
+     * /**
+     * Updates the API model to customize ScanRange member shapes to be
+     * clientOptional.
+     *
+     * @param model    API model
+     * @param settings Go codegen settings
+     * @return updated API model
+     */
+    @Override
+    public Model preprocessModel(Model model, GoSettings settings) {
+
+        if (!S3_SERVICE_SHAPE.equals(settings.getService())) {
+            return model;
+        }
+
+        Model.Builder builder = model.toBuilder();
+
+        StructureShape structureShape = model.expectShape(SCAN_RANGE_SHAPE,
+                StructureShape.class);
+        StructureShape.Builder structureShapeBuilder = structureShape.toBuilder();
+
+        for (String memberName : MEMBERS_TO_MAKE_OPTIONAL) {
+            structureShape.getMember(memberName).ifPresent(member -> {
+                structureShapeBuilder.addMember(member.toBuilder().addTrait(new ClientOptionalTrait()).build());
+            });
+        }
+
+        return builder.addShape(structureShapeBuilder.build()).build();
+    }
+}

codegen/smithy-aws-go-codegen/src/main/resources/META-INF/services/software.amazon.smithy.go.codegen.integration.GoIntegration

@@ -50,3 +50,4 @@ software.amazon.smithy.aws.go.codegen.customization.S3100Continue
 software.amazon.smithy.aws.go.codegen.customization.ApiGatewayExportsNullabilityExceptionIntegration
 software.amazon.smithy.aws.go.codegen.customization.LambdaRecursionDetection
 software.amazon.smithy.aws.go.codegen.customization.SQSCustomizations
+software.amazon.smithy.aws.go.codegen.customization.S3ScanRangeMembersClientOptional