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createSerializer and createDeserializer function in spark 2.4 compatible with spark 3+ #15

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createSerializer and createDeserializer function in spark 2.4 compatible with spark 3+ #15

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7 changes: 7 additions & 0 deletions runtime/src/main/2.4-scala/org/apache/spark/sql/ShimUtils.scala
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package org.apache.spark.sql

import com.sparkutils.shim.ShowParams
import org.apache.spark.sql.catalyst.InternalRow
import org.apache.spark.sql.catalyst.analysis.{FunctionRegistry, GetColumnByOrdinal, TypeCheckResult, UnresolvedFunction, UnresolvedRelation}
import org.apache.spark.sql.catalyst.encoders.{ExpressionEncoder, RowEncoder}
import org.apache.spark.sql.catalyst.expressions.{Add, Attribute, BoundReference, Cast, CreateNamedStruct, Expression, GetArrayStructFields, GetStructField, If, Literal, NamedExpression, PrettyAttribute, Stateful}
Expand All @@ -27,6 +28,12 @@ object ShimUtils {
unresolvedFunction.copy(children = children)
}

implicit class ExpressionEncoderOps[T](expressionEncoder: ExpressionEncoder[T]) {
def createDeserializer(): InternalRow => T = expressionEncoder.fromRow

def createSerializer(): T => InternalRow = expressionEncoder.toRow
}

def isPrimitive(dataType: DataType) =
dataType match {
case BooleanType => true
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