danny0405 commented on code in PR #10943:
URL: https://github.com/apache/hudi/pull/10943#discussion_r1545945200
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hudi-common/src/main/java/org/apache/hudi/avro/HoodieAvroUtils.java:
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@@ -209,10 +210,18 @@ public static byte[] avroToJson(GenericRecord record,
boolean pretty) throws IOE
private static ByteArrayOutputStream avroToJsonHelper(GenericRecord record,
boolean pretty) throws IOException {
DatumWriter<Object> writer = new GenericDatumWriter<>(record.getSchema());
ByteArrayOutputStream out = new ByteArrayOutputStream();
- JsonEncoder jsonEncoder =
EncoderFactory.get().jsonEncoder(record.getSchema(), out, pretty);
- writer.write(record, jsonEncoder);
- jsonEncoder.flush();
- return out;
+ try {
+ JsonEncoder jsonEncoder =
EncoderFactory.get().jsonEncoder(record.getSchema(), out, pretty);
+ writer.write(record, jsonEncoder);
+ jsonEncoder.flush();
+ return out;
+ } catch (ClassCastException | NullPointerException ex) {
+ // NullPointerException will be thrown in cases where the field values
are missing
+ // ClassCastException will be thrown in cases where the field values do
not match the schema type
+ // Fallback to using `toString` which also returns json but without a
pretty-print option
+ out.write(record.toString().getBytes(StandardCharsets.UTF_8));
Review Comment:
> You get a string that represents the json of the object, it does not do
any validation on types/nullability
I kind of remember we have some cases for converting the json into avro then
back to json again operations for our commit metadata.
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