diff options
Diffstat (limited to 'dev/audit-release/sbt_app_streaming/src/main/scala/StreamingApp.scala')
-rw-r--r-- | dev/audit-release/sbt_app_streaming/src/main/scala/StreamingApp.scala | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/dev/audit-release/sbt_app_streaming/src/main/scala/StreamingApp.scala b/dev/audit-release/sbt_app_streaming/src/main/scala/StreamingApp.scala new file mode 100644 index 0000000000..3d0722d2ac --- /dev/null +++ b/dev/audit-release/sbt_app_streaming/src/main/scala/StreamingApp.scala @@ -0,0 +1,62 @@ +/* + * 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 main.scala + +import scala.collection.mutable.{ListBuffer, Queue} + +import org.apache.spark.SparkConf +import org.apache.spark.rdd.RDD +import org.apache.spark.streaming.StreamingContext +import org.apache.spark.streaming._ + +object SparkStreamingExample { + + def main(args: Array[String]) { + val conf = new SparkConf(true) + .setMaster("local[2]") + .setAppName("Streaming test") + val ssc = new StreamingContext(conf, Seconds(1)) + val seen = ListBuffer[RDD[Int]]() + + val rdd1 = ssc.sparkContext.makeRDD(1 to 100, 10) + val rdd2 = ssc.sparkContext.makeRDD(1 to 1000, 10) + val rdd3 = ssc.sparkContext.makeRDD(1 to 10000, 10) + + val queue = Queue(rdd1, rdd2, rdd3) + val stream = ssc.queueStream(queue) + + stream.foreachRDD(rdd => seen += rdd) + ssc.start() + Thread.sleep(5000) + + def test(f: => Boolean, failureMsg: String) = { + if (!f) { + println(failureMsg) + System.exit(-1) + } + } + + val rddCounts = seen.map(rdd => rdd.count()).filter(_ > 0) + test(rddCounts.length == 3, "Did not collect three RDD's from stream") + test(rddCounts.toSet == Set(100, 1000, 10000), "Did not find expected streams") + + println("Test succeeded") + + ssc.stop() + } +} |