| /* |
| * 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.wayang.apps.benchmark |
| |
| import org.apache.wayang.commons.util.profiledb.model.Experiment |
| import org.apache.wayang.api.dataquanta.DataQuanta |
| import org.apache.wayang.api.PlanBuilder |
| import org.apache.wayang.core.api.WayangContext |
| import org.apache.wayang.core.plan.wayangplan.WayangPlan |
| |
| /** |
| * Utility to create random [[WayangPlan]]s. |
| */ |
| abstract class PlanGenerator { |
| |
| /** |
| * Generate a [[WayangPlan]]. |
| * |
| * @param wayangCtx that should be used to generate the [[WayangPlan]] |
| * @return a function that upon invocation triggers the execution of the [[WayangPlan]] |
| */ |
| def generatePlanTrigger(wayangCtx: WayangContext, experiment: Experiment): () => Unit |
| |
| } |
| |
| class PipelinePlanGenerator(numOperators: Int) extends PlanGenerator { |
| |
| require(numOperators >= 2, "At least 2 operators are required for a pipeline.") |
| |
| override def generatePlanTrigger(wayangCtx: WayangContext, experiment: Experiment): () => Unit = { |
| val planBuilder = new PlanBuilder(wayangCtx, s"Generated pipeline ($numOperators OPs)") |
| .withExperiment(experiment) |
| val source = planBuilder.loadCollection(Seq(1)) |
| var edge: DataQuanta[Int] = source.withName("source") |
| for (i <- 2 until numOperators) edge = edge.map(i => i).withName(s"intermediate ${i - 1}") |
| () => edge.collect() |
| } |
| |
| } |
| |
| |
| class FanoutPlanGenerator(fanDegree: Int) extends PlanGenerator { |
| |
| require(fanDegree >= 1, "A fan degree must be >=1.") |
| |
| override def generatePlanTrigger(wayangCtx: WayangContext, experiment: Experiment): () => Unit = { |
| val planBuilder = new PlanBuilder(wayangCtx, s"Generated fanout (degree $fanDegree)") |
| .withExperiment(experiment) |
| val source = planBuilder.loadCollection(Seq(1)).withName("source") |
| var edge: DataQuanta[Int] = source.map(i => i).withName("intermediate 1") |
| for (i <- 2 to fanDegree) edge = edge.map(i => i).withName(s"intermediate $i").withBroadcast(source, "source") |
| () => edge.collect() |
| } |
| |
| } |
| |
| |
| |
| class TreePlanGenerator(treeHeight: Int) extends PlanGenerator { |
| |
| require(treeHeight >= 1, "The tree height must be >=1.") |
| |
| |
| override def generatePlanTrigger(wayangCtx: WayangContext, experiment: Experiment): () => Unit = { |
| val planBuilder = new PlanBuilder(wayangCtx, s"Generated tree (height $treeHeight)") |
| .withExperiment(experiment) |
| val root = createTree(planBuilder, treeHeight) |
| () => root.collect() |
| } |
| |
| /** |
| * Create [[DataQuanta]] that from the root of a tree-shaped [[WayangPlan]] with the given height. |
| * @param planBuilder to create the leave operators, which are sources |
| * @param height of the tree |
| * @return the tree root [[DataQuanta]] |
| */ |
| private def createTree(planBuilder: PlanBuilder, height: Int): DataQuanta[Int] = |
| if (height == 1) planBuilder.loadCollection(Seq(1)) |
| else createTree(planBuilder, height - 1).union(createTree(planBuilder, height - 1)) |
| |
| } |