libenchao commented on a change in pull request #11119: [FLINK-15396][json]
Support to ignore parse errors for JSON format
URL: https://github.com/apache/flink/pull/11119#discussion_r386253447
##########
File path:
flink-formats/flink-json/src/main/java/org/apache/flink/formats/json/JsonRowDeserializationSchema.java
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@@ -130,6 +135,9 @@ public Row deserialize(byte[] message) throws IOException {
final JsonNode root = objectMapper.readTree(message);
return (Row) runtimeConverter.convert(objectMapper,
root);
} catch (Throwable t) {
+ if (ignoreParseErrors) {
+ return null;
+ }
Review comment:
We have two parsing error actually:
- `objectMapper.readTree` will throw parsing error when data is not a valid
json, it will throw `IOException`
- converters will throw parsing error when data cannot converted to
specified type, we can make converters throw a custom exception
So we can check exceptions for just these two types of exception, and apply
ignore parse errors strategy.
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