smengcl commented on code in PR #4264:
URL: https://github.com/apache/ozone/pull/4264#discussion_r1122505474
##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/protocolPB/OzoneManagerRequestHandler.java:
##########
@@ -1219,11 +1219,26 @@ private GetS3VolumeContextResponse getS3VolumeContext()
private SnapshotDiffResponse snapshotDiff(
SnapshotDiffRequest snapshotDiffRequest) throws IOException {
- return SnapshotDiffResponse.newBuilder().setSnapshotDiffReport(
- impl.snapshotDiff(snapshotDiffRequest.getVolumeName(),
+ org.apache.hadoop.ozone.snapshot.SnapshotDiffResponse response =
+ impl.snapshotDiff(
+ snapshotDiffRequest.getVolumeName(),
snapshotDiffRequest.getBucketName(),
snapshotDiffRequest.getFromSnapshot(),
- snapshotDiffRequest.getToSnapshot()).toProtobuf()).build();
+ snapshotDiffRequest.getToSnapshot(),
+ snapshotDiffRequest.getToken(),
+ snapshotDiffRequest.getPageSize());
+
+ OzoneManagerProtocolProtos.SnapshotDiffReportProto snapshotDiffReportProto;
+ if (response.getSnapshotDiffReport() == null) {
+ snapshotDiffReportProto = null;
+ } else {
+ snapshotDiffReportProto = response.getSnapshotDiffReport().toProtobuf();
+ }
+
+ return SnapshotDiffResponse.newBuilder()
+ .setSnapshotDiffReport(snapshotDiffReportProto)
Review Comment:
Double check if setting `null` would cause protobuf-generated methods to
raise exception or not? iirc this could be a potential issue with proto3 (tho I
believe we are using protoc 3 to compile proto2 syntax). Do we have a test case
for this?
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