Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/3798#discussion_r22365825
--- Diff:
external/kafka/src/main/scala/org/apache/spark/rdd/kafka/KafkaCluster.scala ---
@@ -0,0 +1,305 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.rdd.kafka
+
+import scala.util.control.NonFatal
+import scala.collection.mutable.ArrayBuffer
+import java.util.Properties
+import kafka.api._
+import kafka.common.{ErrorMapping, OffsetMetadataAndError,
TopicAndPartition}
+import kafka.consumer.{ConsumerConfig, SimpleConsumer}
+
+/**
+ * Convenience methods for interacting with a Kafka cluster.
+ * @param kafkaParams Kafka <a
href="http://kafka.apache.org/documentation.html#configuration";>
+ * configuration parameters</a>.
+ * Requires "metadata.broker.list" or "bootstrap.servers" to be set
with Kafka broker(s),
+ * NOT zookeeper servers, specified in host1:port1,host2:port2 form
+ */
+class KafkaCluster(val kafkaParams: Map[String, String]) {
--- End diff --
It would probably be good to make this `private[spark]` and keep it as an
internal utility.
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