vinodkc commented on code in PR #39449:
URL: https://github.com/apache/spark/pull/39449#discussion_r1087342979
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/maskExpressions.scala:
##########
@@ -23,9 +23,82 @@ import
org.apache.spark.sql.catalyst.analysis.TypeCheckResult.DataTypeMismatch
import org.apache.spark.sql.catalyst.expressions.codegen._
import org.apache.spark.sql.catalyst.expressions.codegen.Block._
import org.apache.spark.sql.errors.QueryErrorsBase
-import org.apache.spark.sql.types.{AbstractDataType, DataType, StringType}
+import org.apache.spark.sql.types.{AbstractDataType, DataType, IntegerType,
StringType}
import org.apache.spark.unsafe.types.UTF8String
+/**
+ * This trait has common methods, which can be used by Classes implementing
Masking udf functions
+ * Eg : Mask, MaskFirstN, etc
+ */
+private[sql] trait Maskable extends ExpectsInputTypes with QueryErrorsBase {
+ protected val upperCharExpr: Expression
+ protected val lowerCharExpr: Expression
+ protected val digitCharExpr: Expression
+ protected val otherCharExpr: Expression
+
+ @transient
Review Comment:
Done
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/maskExpressions.scala:
##########
@@ -23,9 +23,82 @@ import
org.apache.spark.sql.catalyst.analysis.TypeCheckResult.DataTypeMismatch
import org.apache.spark.sql.catalyst.expressions.codegen._
import org.apache.spark.sql.catalyst.expressions.codegen.Block._
import org.apache.spark.sql.errors.QueryErrorsBase
-import org.apache.spark.sql.types.{AbstractDataType, DataType, StringType}
+import org.apache.spark.sql.types.{AbstractDataType, DataType, IntegerType,
StringType}
import org.apache.spark.unsafe.types.UTF8String
+/**
+ * This trait has common methods, which can be used by Classes implementing
Masking udf functions
+ * Eg : Mask, MaskFirstN, etc
+ */
+private[sql] trait Maskable extends ExpectsInputTypes with QueryErrorsBase {
+ protected val upperCharExpr: Expression
+ protected val lowerCharExpr: Expression
+ protected val digitCharExpr: Expression
+ protected val otherCharExpr: Expression
+
+ @transient
+ protected lazy val upperChar = upperCharExpr.eval()
+ @transient
+ protected lazy val lowerChar = lowerCharExpr.eval()
+ @transient
+ protected lazy val digitChar = digitCharExpr.eval()
+ @transient
+ protected lazy val otherChar = otherCharExpr.eval()
+
+ protected def validateAdditionalFields(): Seq[Option[TypeCheckResult]] =
Seq(None)
Review Comment:
Done
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