Github user mariobriggs commented on a diff in the pull request:
https://github.com/apache/spark/pull/10953#discussion_r51263316
--- Diff:
external/kafka-newapi/src/main/scala/org/apache/spark/streaming/kafka/newapi/KafkaCluster.scala
---
@@ -0,0 +1,184 @@
+/*
+ * 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.streaming.kafka.newapi
+
+import java.util
+import java.util.Collections
+
+import scala.collection.JavaConverters._
+import scala.reflect._
+
+import org.apache.kafka.clients.consumer.{KafkaConsumer,
OffsetAndMetadata, OffsetResetStrategy}
+import org.apache.kafka.common.{PartitionInfo, TopicPartition}
+
+import org.apache.spark.SparkException
+
+/**
+ * @param kafkaParams Kafka <a
href="http://kafka.apache.org/documentation.html#configuration";>
+ * configuration parameters</a>.
+ * Requires "bootstrap.servers" to be set with Kafka
broker(s),
+ * NOT zookeeper servers, specified in
host1:port1,host2:port2 form
+ */
+private[spark]
+class KafkaCluster[K: ClassTag, V: ClassTag](val kafkaParams: Map[String,
String])
+ extends Serializable {
+
+ import KafkaCluster.LeaderOffset
+
+ @transient
+ protected var consumer: KafkaConsumer[K, V] = null
+
+ def getLatestOffsets(topicPartitions: Set[TopicPartition]):
Map[TopicPartition, Long] = {
+ getOffsetsWithoutLeaders(topicPartitions, OffsetResetStrategy.LATEST)
+ }
+
+ def getEarliestOffsets(topicPartitions: Set[TopicPartition]):
Map[TopicPartition, Long] = {
+ getOffsetsWithoutLeaders(topicPartitions, OffsetResetStrategy.EARLIEST)
+ }
+
+ def getPartitions(topics: Set[String]): Set[TopicPartition] = {
--- End diff --
nitpick: this should be implemented by reusing getPartitionsInfo() like
below
```
getPartitionInfo(topics).map { pi =>
new TopicPartition(pi.topic, pi.partition)
}
```
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