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/*
* 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.kinesis
import java.nio.ByteBuffer
import scala.collection.mutable
import scala.collection.mutable.ArrayBuffer
import com.amazonaws.services.kinesis.producer.{KinesisProducer => KPLProducer, KinesisProducerConfiguration, UserRecordResult}
import com.google.common.util.concurrent.{FutureCallback, Futures}
private[kinesis] class KPLBasedKinesisTestUtils extends KinesisTestUtils {
override protected def getProducer(aggregate: Boolean): KinesisDataGenerator = {
if (!aggregate) {
new SimpleDataGenerator(kinesisClient)
} else {
new KPLDataGenerator(regionName)
}
}
}
/** A wrapper for the KinesisProducer provided in the KPL. */
private[kinesis] class KPLDataGenerator(regionName: String) extends KinesisDataGenerator {
private lazy val producer: KPLProducer = {
val conf = new KinesisProducerConfiguration()
.setRecordMaxBufferedTime(1000)
.setMaxConnections(1)
.setRegion(regionName)
.setMetricsLevel("none")
new KPLProducer(conf)
}
override def sendData(streamName: String, data: Seq[Int]): Map[String, Seq[(Int, String)]] = {
val shardIdToSeqNumbers = new mutable.HashMap[String, ArrayBuffer[(Int, String)]]()
data.foreach { num =>
val str = num.toString
val data = ByteBuffer.wrap(str.getBytes())
val future = producer.addUserRecord(streamName, str, data)
val kinesisCallBack = new FutureCallback[UserRecordResult]() {
override def onFailure(t: Throwable): Unit = {} // do nothing
override def onSuccess(result: UserRecordResult): Unit = {
val shardId = result.getShardId
val seqNumber = result.getSequenceNumber()
val sentSeqNumbers = shardIdToSeqNumbers.getOrElseUpdate(shardId,
new ArrayBuffer[(Int, String)]())
sentSeqNumbers += ((num, seqNumber))
}
}
Futures.addCallback(future, kinesisCallBack)
}
producer.flushSync()
shardIdToSeqNumbers.toMap
}
}
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