ashishmgofficial commented on issue #2149:
URL: https://github.com/apache/hudi/issues/2149#issuecomment-704569933
@bvaradar I implemented the transformer class as `public class
DebeziumCustomTransformer implements Transformer {
private static final Logger LOG =
LogManager.getLogger(DebeziumCustomTransformer.class);
@Override
public Dataset apply(JavaSparkContext jsc, SparkSession sparkSession,
Dataset<Row> rowDataset,
TypedProperties properties) {
Dataset<Row> insertedOrUpdatedData = rowDataset
.select("op", "ts_ms", "after.*")
.withColumnRenamed("op", "_op")
.withColumn("_is_hoodie_deleted",lit("false"))
.withColumnRenamed("ts_ms", "_ts_ms")
.filter(rowDataset.col("op").notEqual("d"));
Dataset<Row> deletedData = rowDataset
.select("op", "ts_ms", "before.*")
.withColumnRenamed("op", "_op")
.withColumn("_is_hoodie_deleted",lit("true"))
.withColumnRenamed("ts_ms", "_ts_ms")
.filter(rowDataset.col("op").equalTo("d"));
Dataset<Row> transformedData = insertedOrUpdatedData.union(deletedData);
LOG.info("Debezium converted Table : ");
LOG.info(transformedData.showString(5, 1, false));
return transformedData;
}
}
`
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