Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/15064#discussion_r79212737 --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveInspectors.scala --- @@ -238,102 +238,166 @@ private[hive] trait HiveInspectors { case c => throw new AnalysisException(s"Unsupported java type $c") } + private def withNullSafe(f: Any => Any): Any => Any = { + input => if (input == null) null else f(input) + } + /** * Wraps with Hive types based on object inspector. - * TODO: Consolidate all hive OI/data interface code. */ protected def wrapperFor(oi: ObjectInspector, dataType: DataType): Any => Any = oi match { - case _: JavaHiveVarcharObjectInspector => - (o: Any) => - if (o != null) { - val s = o.asInstanceOf[UTF8String].toString - new HiveVarchar(s, s.length) - } else { - null - } - - case _: JavaHiveCharObjectInspector => - (o: Any) => - if (o != null) { - val s = o.asInstanceOf[UTF8String].toString - new HiveChar(s, s.length) - } else { - null - } - - case _: JavaHiveDecimalObjectInspector => - (o: Any) => - if (o != null) { - HiveDecimal.create(o.asInstanceOf[Decimal].toJavaBigDecimal) - } else { - null - } - - case _: JavaDateObjectInspector => - (o: Any) => - if (o != null) { - DateTimeUtils.toJavaDate(o.asInstanceOf[Int]) - } else { - null - } - - case _: JavaTimestampObjectInspector => + case x: ConstantObjectInspector => (o: Any) => - if (o != null) { - DateTimeUtils.toJavaTimestamp(o.asInstanceOf[Long]) - } else { - null - } + x.getWritableConstantValue + case x: PrimitiveObjectInspector => x match { + // TODO we don't support the HiveVarcharObjectInspector yet. + case _: StringObjectInspector if x.preferWritable() => + withNullSafe(o => getStringWritable(o)) + case _: StringObjectInspector => + withNullSafe(o => o.asInstanceOf[UTF8String].toString()) + case _: IntObjectInspector if x.preferWritable() => + withNullSafe(o => getIntWritable(o)) + case _: IntObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Integer]) + case _: BooleanObjectInspector if x.preferWritable() => + withNullSafe(o => getBooleanWritable(o)) + case _: BooleanObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Boolean]) + case _: FloatObjectInspector if x.preferWritable() => + withNullSafe(o => getFloatWritable(o)) + case _: FloatObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Float]) + case _: DoubleObjectInspector if x.preferWritable() => + withNullSafe(o => getDoubleWritable(o)) + case _: DoubleObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Double]) + case _: LongObjectInspector if x.preferWritable() => + withNullSafe(o => getLongWritable(o)) + case _: LongObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Long]) + case _: ShortObjectInspector if x.preferWritable() => + withNullSafe(o => getShortWritable(o)) + case _: ShortObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Short]) + case _: ByteObjectInspector if x.preferWritable() => + withNullSafe(o => getByteWritable(o)) + case _: ByteObjectInspector => + withNullSafe(o => o.asInstanceOf[java.lang.Byte]) + case _: JavaHiveVarcharObjectInspector => + withNullSafe( --- End diff -- code style: ``` withNullSafe { o => val s = o.asInstanceOf[UTF8String].toString new HiveVarchar(s, s.length) } ```
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