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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 main.scala
import org.apache.spark.{SparkContext, SparkConf}
import org.apache.spark.SparkContext._
import org.apache.spark.graphx._
import org.apache.spark.rdd.RDD
object GraphXApp {
def main(args: Array[String]) {
val conf = sys.env.get("SPARK_AUDIT_MASTER") match {
case Some(master) => new SparkConf().setAppName("Simple GraphX App").setMaster(master)
case None => new SparkConf().setAppName("Simple Graphx App")
}
val sc = new SparkContext(conf)
SparkContext.jarOfClass(this.getClass).foreach(sc.addJar)
val users: RDD[(VertexId, (String, String))] =
sc.parallelize(Array((3L, ("rxin", "student")), (7L, ("jgonzal", "postdoc")),
(5L, ("franklin", "prof")), (2L, ("istoica", "prof")),
(4L, ("peter", "student"))))
val relationships: RDD[Edge[String]] =
sc.parallelize(Array(Edge(3L, 7L, "collab"), Edge(5L, 3L, "advisor"),
Edge(2L, 5L, "colleague"), Edge(5L, 7L, "pi"),
Edge(4L, 0L, "student"), Edge(5L, 0L, "colleague")))
val defaultUser = ("John Doe", "Missing")
val graph = Graph(users, relationships, defaultUser)
// Notice that there is a user 0 (for which we have no information) connected to users
// 4 (peter) and 5 (franklin).
val triplets = graph.triplets.map(e => (e.srcAttr._1, e.dstAttr._1)).collect
if (!triplets.exists(_ == ("peter", "John Doe"))) {
println("Failed to run GraphX")
System.exit(-1)
}
println("Test succeeded")
}
}
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