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[SPARK-23589][SQL][FOLLOW-UP] Reuse InternalRow in ExternalMapToCatalyst eval #21137

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[SPARK-23589][SQL][FOLLOW-UP] Reuse InternalRow in ExternalMapToCatalyst eval #21137

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b39b6cd
Fix
maropu Apr 24, 2018
6bfcd7a
Fix
maropu Apr 24, 2018
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92 changes: 50 additions & 42 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/objects/objects.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -1255,53 +1255,61 @@ case class ExternalMapToCatalyst private(
override def dataType: MapType = MapType(
keyConverter.dataType, valueConverter.dataType, valueContainsNull = valueConverter.nullable)

private lazy val mapCatalystConverter: Any => (Array[Any], Array[Any]) = child.dataType match {
case ObjectType(cls) if classOf[java.util.Map[_, _]].isAssignableFrom(cls) =>
(input: Any) => {
val data = input.asInstanceOf[java.util.Map[Any, Any]]
val keys = new Array[Any](data.size)
val values = new Array[Any](data.size)
val iter = data.entrySet().iterator()
var i = 0
while (iter.hasNext) {
val entry = iter.next()
val (key, value) = (entry.getKey, entry.getValue)
keys(i) = if (key != null) {
keyConverter.eval(InternalRow.fromSeq(key :: Nil))
} else {
throw new RuntimeException("Cannot use null as map key!")
}
values(i) = if (value != null) {
valueConverter.eval(InternalRow.fromSeq(value :: Nil))
} else {
null
private lazy val mapCatalystConverter: Any => (Array[Any], Array[Any]) = {
val rowBuffer = InternalRow.fromSeq(Array[Any](1))
def rowWrapper(data: Any): InternalRow = {
rowBuffer.update(0, data)
rowBuffer
}

child.dataType match {
case ObjectType(cls) if classOf[java.util.Map[_, _]].isAssignableFrom(cls) =>
(input: Any) => {
val data = input.asInstanceOf[java.util.Map[Any, Any]]
val keys = new Array[Any](data.size)
val values = new Array[Any](data.size)
val iter = data.entrySet().iterator()
var i = 0
while (iter.hasNext) {
val entry = iter.next()
val (key, value) = (entry.getKey, entry.getValue)
keys(i) = if (key != null) {
keyConverter.eval(rowWrapper(key))
} else {
throw new RuntimeException("Cannot use null as map key!")
}
values(i) = if (value != null) {
valueConverter.eval(rowWrapper(value))
} else {
null
}
i += 1
}
i += 1
(keys, values)
}
(keys, values)
}

case ObjectType(cls) if classOf[scala.collection.Map[_, _]].isAssignableFrom(cls) =>
(input: Any) => {
val data = input.asInstanceOf[scala.collection.Map[Any, Any]]
val keys = new Array[Any](data.size)
val values = new Array[Any](data.size)
var i = 0
for ((key, value) <- data) {
keys(i) = if (key != null) {
keyConverter.eval(InternalRow.fromSeq(key :: Nil))
} else {
throw new RuntimeException("Cannot use null as map key!")
}
values(i) = if (value != null) {
valueConverter.eval(InternalRow.fromSeq(value :: Nil))
} else {
null
case ObjectType(cls) if classOf[scala.collection.Map[_, _]].isAssignableFrom(cls) =>
(input: Any) => {
val data = input.asInstanceOf[scala.collection.Map[Any, Any]]
val keys = new Array[Any](data.size)
val values = new Array[Any](data.size)
var i = 0
for ((key, value) <- data) {
keys(i) = if (key != null) {
keyConverter.eval(rowWrapper(key))
} else {
throw new RuntimeException("Cannot use null as map key!")
}
values(i) = if (value != null) {
valueConverter.eval(rowWrapper(value))
} else {
null
}
i += 1
}
i += 1
(keys, values)
}
(keys, values)
}
}
}

override def eval(input: InternalRow): Any = {
Expand Down