amogh-jahagirdar commented on code in PR #6835:
URL: https://github.com/apache/iceberg/pull/6835#discussion_r1107874421
##########
aws/src/main/java/org/apache/iceberg/aws/s3/signer/S3ObjectMapper.java:
##########
@@ -48,13 +48,16 @@ public class S3ObjectMapper {
private S3ObjectMapper() {}
- static ObjectMapper mapper() {
+ public static ObjectMapper mapper() {
if (!isInitialized) {
synchronized (S3ObjectMapper.class) {
Review Comment:
Something I missed earlier but it's minor, generally for these kinds of
initializations I think it's more clear to have an
AtomicReference<ObjectMapper>() and use the `compareAndSet` method if the
instance is null.
##########
aws/src/main/java/org/apache/iceberg/aws/s3/signer/S3ObjectMapper.java:
##########
@@ -48,13 +48,16 @@ public class S3ObjectMapper {
private S3ObjectMapper() {}
- static ObjectMapper mapper() {
+ public static ObjectMapper mapper() {
Review Comment:
Does the underlying object mapper need to be public? It feels like that
shouldn't be if this `S3ObjectMapper` class is supposed to expose mapper
operations
##########
aws/src/main/java/org/apache/iceberg/aws/s3/signer/S3ObjectMapper.java:
##########
@@ -48,13 +48,16 @@ public class S3ObjectMapper {
private S3ObjectMapper() {}
- static ObjectMapper mapper() {
+ public static ObjectMapper mapper() {
if (!isInitialized) {
synchronized (S3ObjectMapper.class) {
if (!isInitialized) {
MAPPER.setVisibility(PropertyAccessor.FIELD,
JsonAutoDetect.Visibility.ANY);
MAPPER.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES,
false);
-
MAPPER.setPropertyNamingStrategy(PropertyNamingStrategies.KebabCaseStrategy.INSTANCE);
+ // even though using new PropertyNamingStrategy.KebabCaseStrategy()
is deprecated
+ // and PropertyNamingStrategies.KebabCaseStrategy.INSTANCE
(introduced in jackson 1.14) is
+ // recommended, we can't use it because Spark still relies on
jackson 1.13.x stuff
Review Comment:
Do we mean Jackson `2.13` and `2.14` instead of `1.x` here? I think this is
okay but ideally what we do is we upgrade Iceberg Spark jackson itself then we
can use the non-deprecated version.
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