Handling unknown fields in s3 event notifications

Signed-off-by: Divyansh Bokadia <dbokadia@amazon.com>

Author: divbok

data-prepper-plugins/s3-source/src/main/java/org/opensearch/dataprepper/plugins/source/s3/S3EventNotification.java

@@ -7,6 +7,7 @@
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 import org.joda.time.DateTime;
@@ -84,6 +85,7 @@ public String getArn() {
     }
   }
 
+  @JsonIgnoreProperties(ignoreUnknown = true)
   public static class S3ObjectEntity {
 
     private final String key;

data-prepper-plugins/s3-source/src/test/java/org/opensearch/dataprepper/plugins/source/s3/parser/S3EventNotificationParserTest.java

@@ -23,7 +23,7 @@ public class S3EventNotificationParserTest {
                     "\"responseElements\":{\"x-amz-request-id\":\"xyz\",\"x-amz-id-2\":\"xyz\"},\"s3\":{\"s3SchemaVersion\":\"1.0\"," +
                     "\"configurationId\":\"xyz\",\"bucket\":{\"name\":\"my-bucket\",\"ownerIdentity\":{\"principalId\":\"ABC\"}," +
                     "\"arn\":\"arn:aws:s3:::my-bucket\"},\"object\":{\"key\":\"path/to/myfile.log.gz\",\"size\":3159112,\"eTag\":\"abcd123\"," +
-                    "\"sequencer\":\"000\"}}}]}";
+                    "\"sequencer\":\"000\",\"hasObjectAnnotation\":false}}}]}";
 
     public static final String SNS_BASED_MESSAGE = "{\n" +
             "  \"Type\" : \"Notification\",\n" +