[GitHub] [hudi] ashishmgofficial edited a comment on issue #2149: Help with Reading Kafka topic written using Debezium Connector - Deltastreamer

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ashishmgofficial edited a comment 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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