lokeshj1703 commented on code in PR #8574:
URL: https://github.com/apache/hudi/pull/8574#discussion_r1189818267
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hudi-utilities/src/main/java/org/apache/hudi/utilities/transform/ChainedTransformer.java:
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@@ -109,6 +123,29 @@ private void validateIdentifier(String id, Set<String>
identifiers, String confi
}
}
+ private Option<Schema> validateAndGetTransformedSchema(TransformerInfo
transformerInfo, Dataset<Row> dataset, Option<Schema> incomingSchemaOpt,
+ JavaSparkContext jsc,
SparkSession sparkSession, TypedProperties properties) {
+ if (!incomingSchemaOpt.isPresent()) {
+ throw new HoodieSchemaException(String.format("Source schema not
available for transformer %s", transformerInfo));
+ }
+ Schema incomingSchema = incomingSchemaOpt.get();
+
+ // Get expected target schema from transformer and actual target schema
from struct
+ Schema targetSchema =
AvroConversionUtils.convertStructTypeToAvroSchema(dataset.schema(),
incomingSchema.getName(),
+ incomingSchema.getNamespace());
+ Option<Schema> expectedTargetSchemaOpt =
transformerInfo.getTransformer().transformedSchema(jsc, sparkSession,
incomingSchema, properties);
+ if (!expectedTargetSchemaOpt.isPresent()) {
Review Comment:
The `expectedTargetSchemaOpt` is calculated using the `targetSchema` and
other variables above.
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