lokeshj1703 commented on code in PR #8574:
URL: https://github.com/apache/hudi/pull/8574#discussion_r1180288322
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hudi-utilities/src/main/java/org/apache/hudi/utilities/transform/ChainedTransformer.java:
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@@ -46,9 +110,40 @@ public List<String> getTransformersNames() {
@Override
public Dataset<Row> apply(JavaSparkContext jsc, SparkSession sparkSession,
Dataset<Row> rowDataset, TypedProperties properties) {
Dataset<Row> dataset = rowDataset;
+ Schema incomingSchema = enableSchemaValidation ? sourceSchemaOpt.get() :
null;
for (Transformer t : transformers) {
- dataset = t.apply(jsc, sparkSession, dataset, properties);
+ String suffix = transformerToPropKeySuffix.get(t);
+ TypedProperties transformerProps = properties;
+ if (StringUtils.nonEmpty(suffix)) {
+ transformerProps = new TypedProperties(properties);
+ Map<String, Object> overrideKeysMap = new HashMap<>();
+ for (Map.Entry<Object, Object> entry : properties.entrySet()) {
+ String key = (String) entry.getKey();
+ if (key.endsWith("." + suffix)) {
+ overrideKeysMap.put(key.substring(0, key.length() -
(suffix.length() + 1)), entry.getValue());
+ }
+ }
+ transformerProps.putAll(overrideKeysMap);
+ }
+ dataset = t.apply(jsc, sparkSession, dataset, transformerProps);
+ if (enableSchemaValidation) {
+ incomingSchema = validateAndGetTransformedSchema(t, dataset,
incomingSchema, jsc, sparkSession, properties);
+ }
}
return dataset;
}
+
+ private Schema validateAndGetTransformedSchema(Transformer transformer,
Dataset<Row> dataset, Schema incomingSchema,
Review Comment:
Added tests in TestTransformer class.
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