Add new response type for SQSaaES Partial Batch Feature (#279)

Added a new response type to return the list of failed messages.

Author: nithinvommi

aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/SQSBatchResponse.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2021 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 com.amazonaws.services.lambda.runtime.events;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+import java.util.List;
+
+/**
+ * Function response type to report batch item failures for {@link SQSEvent}.
+ */
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder(setterPrefix = "with")
+public class SQSBatchResponse implements Serializable {
+
+    private static final long serialVersionUID = 5075170615239078773L;
+
+    /**
+     * A list of messageIds that failed processing. These messageIds will be retried.
+     */
+    private List<BatchItemFailure> batchItemFailures;
+
+    @Data
+    @NoArgsConstructor
+    @AllArgsConstructor
+    @Builder(setterPrefix = "with")
+    public static class BatchItemFailure implements Serializable {
+
+        private static final long serialVersionUID = 40727862494377907L;
+
+        /**
+         * MessageId that failed processing
+         */
+        String itemIdentifier;
+    }
+}