Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/9142#discussion_r42218800
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/json/JSONRelation.scala
---
@@ -83,10 +83,13 @@ private[sql] class JSONRelation(
val job = new Job(sqlContext.sparkContext.hadoopConfiguration)
val conf = SparkHadoopUtil.get.getConfigurationFromJobContext(job)
- val paths = inputPaths.map(_.getPath)
+ val rddInputPaths = inputPaths.map(_.getPath)
- if (paths.nonEmpty) {
- FileInputFormat.setInputPaths(job, paths: _*)
+ if (rddInputPaths.nonEmpty) {
+ FileInputFormat.setInputPaths(job, rddInputPaths: _*)
+ } else {
+ throw new RuntimeException("Input paths do not exist or are empty
directories, "
--- End diff --
Use `require` to write this test. In general `RuntimeException` is not
something you should throw directly.
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