ashishmgofficial removed 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);
return transformedData;
}
}
```
But Im facing the following error
```
Exception in thread "main" java.lang.NoSuchMethodError:
scala.Product.$init$(Lscala/Product;)V
at
org.apache.spark.sql.avro.SchemaConverters$SchemaType.<init>(SchemaConverters.scala:40)
at
org.apache.spark.sql.avro.SchemaConverters$.toSqlTypeHelper(SchemaConverters.scala:53)
at
org.apache.spark.sql.avro.SchemaConverters$.$anonfun$toSqlTypeHelper$1(SchemaConverters.scala:82)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at
org.apache.spark.sql.avro.SchemaConverters$.toSqlTypeHelper(SchemaConverters.scala:81)
at
org.apache.spark.sql.avro.SchemaConverters$.toSqlTypeHelper(SchemaConverters.scala:105)
at
org.apache.spark.sql.avro.SchemaConverters$.$anonfun$toSqlTypeHelper$1(SchemaConverters.scala:82)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
at scala.collection.AbstractTraversable.map(Traversable.scala:104)
at
org.apache.spark.sql.avro.SchemaConverters$.toSqlTypeHelper(SchemaConverters.scala:81)
at
org.apache.spark.sql.avro.SchemaConverters$.toSqlType(SchemaConverters.scala:46)
at
org.apache.hudi.AvroConversionUtils$.convertAvroSchemaToStructType(AvroConversionUtils.scala:81)
at
org.apache.hudi.AvroConversionUtils$.createDataFrame(AvroConversionUtils.scala:70)
at
org.apache.hudi.AvroConversionUtils.createDataFrame(AvroConversionUtils.scala)
at
org.apache.hudi.utilities.deltastreamer.SourceFormatAdapter.lambda$fetchNewDataInRowFormat$2(SourceFormatAdapter.java:101)
at org.apache.hudi.common.util.Option.map(Option.java:104)
at
org.apache.hudi.utilities.deltastreamer.SourceFormatAdapter.fetchNewDataInRowFormat(SourceFormatAdapter.java:101)
at
org.apache.hudi.utilities.deltastreamer.DeltaSync.readFromSource(DeltaSync.java:307)
at
org.apache.hudi.utilities.deltastreamer.DeltaSync.syncOnce(DeltaSync.java:238)
at
org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer.lambda$sync$2(HoodieDeltaStreamer.java:163)
at org.apache.hudi.common.util.Option.ifPresent(Option.java:96)
at
org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer.sync(HoodieDeltaStreamer.java:161)
at
org.apache.hudi.utilities.deltastreamer.HoodieDeltaStreamer.main(HoodieDeltaStreamer.java:466)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at
org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:853)
at
org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:161)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:184)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at
org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:928)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:937)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
```
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