Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/17043#discussion_r103043531
--- Diff:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaSourceProvider.scala
---
@@ -152,6 +157,56 @@ private[kafka010] class KafkaSourceProvider extends
DataSourceRegister with Stre
endingRelationOffsets)
}
+ override def createSink(
+ sqlContext: SQLContext,
+ parameters: Map[String, String],
+ partitionColumns: Seq[String],
+ outputMode: OutputMode): Sink = {
+ val caseInsensitiveParams = parameters.map { case (k, v) =>
(k.toLowerCase, v) }
+ val defaultTopic =
caseInsensitiveParams.get(TOPIC_OPTION_KEY).map(_.trim.toLowerCase)
+ val specifiedKafkaParams =
+ parameters
+ .keySet
+ .filter(_.toLowerCase.startsWith("kafka."))
+ .map { k => k.drop(6).toString -> parameters(k) }
+ .toMap + ("value.serializer" -> classOf[BytesSerializer].getName,
+ "key.serializer" -> classOf[BytesSerializer].getName)
+ new KafkaSink(sqlContext,
+ new ju.HashMap[String, Object](specifiedKafkaParams.asJava),
+ defaultTopic)
+ }
+
+ override def createRelation(
+ outerSQLContext: SQLContext,
+ mode: SaveMode,
+ parameters: Map[String, String],
+ data: DataFrame): BaseRelation = {
+ mode match {
+ case SaveMode.Overwrite | SaveMode.Ignore =>
+ throw new AnalysisException(s"save mode $mode not allowed for
Kafka. " +
--- End diff --
*S*ave mode $mode
---
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