codegen: Add backfilling boxed trait to S3Control API shape (#988)

Adds backfilling @boxed trait to the S3Control ExpirationInDays shape.

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

@@ -0,0 +1,78 @@
+/*
+ * Copyright 2020 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.go.codegen.customization;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.logging.Logger;
+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.IntegerShape;
+import software.amazon.smithy.model.shapes.ShapeId;
+import software.amazon.smithy.model.traits.BoxTrait;
+import software.amazon.smithy.utils.MapUtils;
+import software.amazon.smithy.utils.SetUtils;
+
+/**
+ * Integration that back fills the `boxed` traits to API shapes that were not decorated with the trait in the model.
+ */
+public class BackfillBoxTrait implements GoIntegration {
+    private static final Logger LOGGER = Logger.getLogger(BackfillBoxTrait.class.getName());
+
+    /**
+     * Map of service shape to Set of operation shapes that need to have this
+     * presigned url auto fill customization.
+     */
+    public static final Map<ShapeId, Set<ShapeId>> SERVICE_TO_MEMBER_MAP = MapUtils.of(
+            ShapeId.from("com.amazonaws.s3control#AWSS3ControlServiceV20180820"), SetUtils.of(
+                    ShapeId.from("com.amazonaws.s3control#S3ExpirationInDays")
+            ));
+
+    /**
+     * /**
+     * Updates the API model to add additional members to the operation input shape that are needed for presign url
+     * customization.
+     *
+     * @param model    API model
+     * @param settings Go codegen settings
+     * @return updated API model
+     */
+    @Override
+    public Model preprocessModel(Model model, GoSettings settings) {
+        ShapeId serviceId = settings.getService();
+        if (!SERVICE_TO_MEMBER_MAP.containsKey(serviceId)) {
+            return model;
+        }
+        Model.Builder builder = model.toBuilder();
+
+        Set<ShapeId> shapeIds = SERVICE_TO_MEMBER_MAP.get(serviceId);
+        for (ShapeId shapeId : shapeIds) {
+            IntegerShape shape = model.expectShape(shapeId, IntegerShape.class);
+            if (shape.getTrait(BoxTrait.class).isPresent()) {
+                LOGGER.warning("BoxTrait is present in model and does not require backfill");
+                continue;
+            }
+            builder.addShape(shape.toBuilder()
+                    .addTrait(new BoxTrait())
+                    .build());
+        }
+
+        return builder.build();
+    }
+}

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

@@ -10,6 +10,7 @@ software.amazon.smithy.aws.go.codegen.AwsSdkServiceId
 software.amazon.smithy.aws.go.codegen.AwsRetryMiddlewareHelper
 software.amazon.smithy.aws.go.codegen.AWSRequestIDRetriever
 software.amazon.smithy.aws.go.codegen.AWSResponseErrorWrapper
+software.amazon.smithy.aws.go.codegen.customization.BackfillBoxTrait
 software.amazon.smithy.aws.go.codegen.customization.DynamoDBValidateResponseChecksum
 software.amazon.smithy.aws.go.codegen.customization.S3UpdateEndpoint
 software.amazon.smithy.aws.go.codegen.customization.APIGatewayAcceptHeader