Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/22646#discussion_r223168936
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala ---
@@ -1098,12 +1099,19 @@ object SQLContext {
data: Iterator[_],
beanClass: Class[_],
attrs: Seq[AttributeReference]): Iterator[InternalRow] = {
+ import scala.collection.JavaConverters._
+ import java.lang.reflect.{Type, ParameterizedType, Array => JavaArray}
+ def interfaceParameters(t: Type, interface: Class[_]): Array[Type] = t
match {
+ case parType: ParameterizedType if parType.getRawType == interface =>
+ parType.getActualTypeArguments
+ case _ => throw new UnsupportedOperationException(s"$t is not an
$interface")
--- End diff --
This exception message looks a bit confusing. We can say the type is not
supported.
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