viirya commented on a change in pull request #24025: [SPARK-27106][SQL] merge
CaseInsensitiveStringMap and DataSourceOptions
URL: https://github.com/apache/spark/pull/24025#discussion_r265079846
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileDataSourceV2.scala
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@@ -35,4 +38,13 @@ trait FileDataSourceV2 extends TableProvider with
DataSourceRegister {
def fallBackFileFormat: Class[_ <: FileFormat]
lazy val sparkSession = SparkSession.active
+
+ protected def getPaths(map: CaseInsensitiveStringMap): Seq[String] = {
+ val objectMapper = new ObjectMapper()
+ Option(map.get("paths")).map { pathStr =>
+ objectMapper.readValue(pathStr, classOf[Array[String]]).toSeq
+ }.orElse(Option(map.get("path")).map(Seq(_))).getOrElse {
+ throw new IllegalArgumentException("'path' must be given when reading
files.")
Review comment:
nit: `'path' or 'paths' must be ...`
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