Add sfn specific http configs

Author: zoewangg

.changes/next-release/feature-AWSStepFunctions-26702fe.json

@@ -0,0 +1,5 @@
+{
+    "category": "AWS Step Functions", 
+    "type": "feature", 
+    "description": "Add sfn specific http configurations. See [#1325](https://github.com/aws/aws-sdk-java-v2/issues/1325)"
+}

services/sfn/src/it/java/software/amazon/awssdk/services/sfn/SfnIntegrationTest.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2010-2020 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.awssdk.services.sfn;
+
+import static org.junit.Assert.assertNotNull;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import software.amazon.awssdk.testutils.service.AwsIntegrationTestBase;
+
+public class SfnIntegrationTest extends AwsIntegrationTestBase {
+
+    private static SfnClient sfnClient;
+    private static String activityArn;
+
+    @BeforeClass
+    public static void setUpClient() {
+        sfnClient = SfnClient.builder().credentialsProvider(CREDENTIALS_PROVIDER_CHAIN).build();
+        activityArn = sfnClient.createActivity(b -> b.name("test")).activityArn();
+    }
+
+    @AfterClass
+    public static void cleanUp() {
+        if (activityArn != null) {
+            sfnClient.deleteActivity(b -> b.activityArn(activityArn));
+        }
+    }
+
+    @Test
+    public void getActivityTask_shouldWorkByDefault(){
+        assertNotNull(sfnClient.getActivityTask(b -> b.activityArn(activityArn)));
+    }
+}

services/sfn/src/main/java/software/amazon/awssdk/services/sfn/internal/SfnHttpConfigurationOptions.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2010-2020 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.awssdk.services.sfn.internal;
+
+import java.time.Duration;
+import software.amazon.awssdk.annotations.SdkInternalApi;
+import software.amazon.awssdk.http.SdkHttpConfigurationOption;
+import software.amazon.awssdk.utils.AttributeMap;
+
+/**
+ * Sfn specific http configurations.
+ */
+@SdkInternalApi
+public final class SfnHttpConfigurationOptions {
+
+    private static final AttributeMap OPTIONS = AttributeMap
+        .builder()
+        // Sfn has long polling APIs such as getActivityTask that could take up to
+        // 60 seconds to respond
+        .put(SdkHttpConfigurationOption.READ_TIMEOUT, Duration.ofSeconds(65))
+        .build();
+
+    private SfnHttpConfigurationOptions() {
+    }
+
+    public static AttributeMap defaultHttpConfig() {
+        return OPTIONS;
+    }
+}

services/sfn/src/main/resources/codegen-resources/customization.config

@@ -2,5 +2,6 @@
     "verifiedSimpleMethods" : [
         "listActivities",
         "listStateMachines"
-    ]
+    ],
+    "serviceSpecificHttpConfig": "software.amazon.awssdk.services.sfn.internal.SfnHttpConfigurationOptions"
 }