Add S3BatchEventV2 (#496)

* Add S3BatchEventV2 class

* Add test for S3BatchEventV2

---------

Co-authored-by: Martin Merfort <[email protected]>
Co-authored-by: Alexander Smirnov <[email protected]>

Author: mmerfort

Diff for: aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/S3BatchEventV2.java

@@ -0,0 +1,50 @@
+package com.amazonaws.services.lambda.runtime.events;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Event to represent the payload which is sent to Lambda by S3 Batch to perform a custom
+ * action when using invocation schema version 2.0.
+ *
+ * https://docs.aws.amazon.com/AmazonS3/latest/dev/batch-ops-invoke-lambda.html
+ */
+
+@Data
+@Builder(setterPrefix = "with")
+@NoArgsConstructor
+@AllArgsConstructor
+public class S3BatchEventV2 {
+
+    private String invocationSchemaVersion;
+    private String invocationId;
+    private Job job;
+    private List<Task> tasks;
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Job {
+
+        private String id;
+        private Map<String, String> userArguments;
+    }
+
+    @Data
+    @Builder(setterPrefix = "with")
+    @NoArgsConstructor
+    @AllArgsConstructor
+    public static class Task {
+
+        private String taskId;
+        private String s3Key;
+        private String s3VersionId;
+        private String s3BucketName;
+    }
+}

Diff for: aws-lambda-java-events/src/main/java/com/amazonaws/services/lambda/runtime/events/S3BatchResponse.java

@@ -62,4 +62,10 @@ public static S3BatchResponseBuilder fromS3BatchEvent(S3BatchEvent s3BatchEvent)
                 .withInvocationId(s3BatchEvent.getInvocationId())
                 .withInvocationSchemaVersion(s3BatchEvent.getInvocationSchemaVersion());
     }
-}
+
+    public static S3BatchResponseBuilder fromS3BatchEvent(S3BatchEventV2 s3BatchEvent) {
+        return S3BatchResponse.builder()
+                .withInvocationId(s3BatchEvent.getInvocationId())
+                .withInvocationSchemaVersion(s3BatchEvent.getInvocationSchemaVersion());
+    }
+}

Diff for: aws-lambda-java-tests/src/main/java/com/amazonaws/services/lambda/runtime/tests/EventLoader.java

@@ -105,6 +105,10 @@ public static S3Event loadS3Event(String filename) {
         return loadEvent(filename, S3Event.class);
     }
 
+    public static S3BatchEventV2 loadS3BatchEventV2(String filename) {
+        return loadEvent(filename, S3BatchEventV2.class);
+    }
+
     public static SecretsManagerRotationEvent loadSecretsManagerRotationEvent(String filename) {
         return loadEvent(filename, SecretsManagerRotationEvent.class);
     }

Diff for: aws-lambda-java-tests/src/test/java/com/amazonaws/services/lambda/runtime/tests/S3BatchEventV2Test.java

@@ -0,0 +1,20 @@
+package com.amazonaws.services.lambda.runtime.tests;
+
+import com.amazonaws.services.lambda.runtime.events.S3BatchEventV2;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class S3BatchEventV2Test {
+
+    @Test
+    public void testS3BatchEventV2() {
+        S3BatchEventV2 event = EventLoader.loadS3BatchEventV2("s3_batch_event_v2.json");
+        assertThat(event).isNotNull();
+        assertThat(event.getInvocationId()).isEqualTo("Jr3s8KZqYWRmaiBhc2RmdW9hZHNmZGpmaGFzbGtkaGZzatx7Ruy");
+        assertThat(event.getJob()).isNotNull();
+        assertThat(event.getJob().getUserArguments().get("MyDestinationBucket")).isEqualTo("destination-directory-bucket-name");
+        assertThat(event.getTasks()).hasSize(1);
+        assertThat(event.getTasks().get(0).getS3Key()).isEqualTo("s3objectkey");
+    }
+}

Diff for: aws-lambda-java-tests/src/test/resources/s3_batch_event_v2.json

@@ -0,0 +1,21 @@
+{
+  "invocationSchemaVersion": "2.0",
+  "invocationId": "Jr3s8KZqYWRmaiBhc2RmdW9hZHNmZGpmaGFzbGtkaGZzatx7Ruy",
+  "job": {
+    "id": "ry77cd60-61f6-4a2b-8a21-d07600c874gf",
+    "userArguments": {
+      "MyDestinationBucket": "destination-directory-bucket-name",
+      "MyDestinationBucketRegion": "us-east-1",
+      "MyDestinationPrefix": "copied/",
+      "MyDestinationObjectKeySuffix": "_new_suffix"
+    }
+  },
+  "tasks": [
+    {
+      "taskId": "y5R3a2lkZ29lc2hlurcS",
+      "s3Key": "s3objectkey",
+      "s3VersionId": null,
+      "s3Bucket": "source-directory-bucket-name"
+    }
+  ]
+}