| /* |
| * 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.core.plan.wayangplan; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.apache.wayang.core.plan.wayangplan.test.TestLoopHead; |
| import org.apache.wayang.core.plan.wayangplan.test.TestMapOperator; |
| import org.apache.wayang.core.plan.wayangplan.test.TestSink; |
| import org.apache.wayang.core.plan.wayangplan.test.TestSource; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Test suite for the {@link LoopIsolator}. |
| */ |
| public class LoopIsolatorTest { |
| |
| @Test |
| public void testWithSingleLoop() { |
| TestSource<Integer> source = new TestSource<>(Integer.class); |
| |
| TestLoopHead<Integer> loopHead = new TestLoopHead<>(Integer.class); |
| source.connectTo("out", loopHead, "initialInput"); |
| |
| TestMapOperator<Integer, Integer> inLoopMap = new TestMapOperator<>(Integer.class, Integer.class); |
| loopHead.connectTo("loopOutput", inLoopMap, "in"); |
| inLoopMap.connectTo("out", loopHead, "loopInput"); |
| |
| TestSink<Integer> sink = new TestSink<>(Integer.class); |
| loopHead.connectTo("finalOutput", sink, "in"); |
| |
| WayangPlan wayangPlan = new WayangPlan(sink); |
| |
| LoopIsolator.isolateLoops(wayangPlan); |
| |
| // Check the top-level plan. |
| final Operator allegedLoopSubplan = sink.getEffectiveOccupant(0).getOwner(); |
| Assert.assertSame(LoopSubplan.class, allegedLoopSubplan.getClass()); |
| Assert.assertSame(source, allegedLoopSubplan.getEffectiveOccupant(0).getOwner()); |
| |
| // Check the Subplan. |
| LoopSubplan loopSubplan = (LoopSubplan) allegedLoopSubplan; |
| Assert.assertEquals(1, loopSubplan.getNumOutputs()); |
| Assert.assertEquals(1, loopSubplan.getNumInputs()); |
| Assert.assertSame(loopHead.getOutput("finalOutput"), loopSubplan.traceOutput(loopSubplan.getOutput(0))); |
| List<InputSlot<?>> innerInputs = new ArrayList<>(loopSubplan.followInput(loopSubplan.getInput(0))); |
| Assert.assertEquals(1, innerInputs.size()); |
| Assert.assertSame(loopHead.getInput("initialInput"), innerInputs.get(0)); |
| Assert.assertSame(loopSubplan, loopHead.getParent()); |
| Assert.assertSame(loopSubplan, inLoopMap.getParent()); |
| } |
| |
| @Test |
| public void testWithSingleLoopWithConstantInput() { |
| TestSource<Integer> mainSource = new TestSource<>(Integer.class); |
| TestSource<Integer> additionalSource = new TestSource<>(Integer.class); |
| |
| TestLoopHead<Integer> loopHead = new TestLoopHead<>(Integer.class); |
| mainSource.connectTo("out", loopHead, "initialInput"); |
| |
| TestMapOperator<Integer, Integer> inLoopMap = new TestMapOperator<>(Integer.class, Integer.class); |
| loopHead.broadcastTo("loopOutput", inLoopMap, "broadcast"); |
| additionalSource.connectTo("out", inLoopMap, "in"); |
| inLoopMap.connectTo("out", loopHead, "loopInput"); |
| |
| TestSink<Integer> sink = new TestSink<>(Integer.class); |
| loopHead.connectTo("finalOutput", sink, "in"); |
| |
| WayangPlan wayangPlan = new WayangPlan(sink); |
| |
| LoopIsolator.isolateLoops(wayangPlan); |
| |
| // Check the top-level plan. |
| final Operator allegedLoopSubplan = sink.getEffectiveOccupant(0).getOwner(); |
| Assert.assertSame(LoopSubplan.class, allegedLoopSubplan.getClass()); |
| Assert.assertSame(mainSource, allegedLoopSubplan.getEffectiveOccupant(0).getOwner()); |
| |
| // Check the Subplan. |
| LoopSubplan loopSubplan = (LoopSubplan) allegedLoopSubplan; |
| Assert.assertEquals(1, loopSubplan.getNumOutputs()); |
| Assert.assertEquals(2, loopSubplan.getNumInputs()); |
| Assert.assertSame(loopHead.getOutput("finalOutput"), loopSubplan.traceOutput(loopSubplan.getOutput(0))); |
| List<InputSlot<?>> innerInputs = new ArrayList<>(loopSubplan.followInput(loopSubplan.getInput(0))); |
| Assert.assertEquals(1, innerInputs.size()); |
| Assert.assertSame(loopHead.getInput("initialInput"), innerInputs.get(0)); |
| Assert.assertSame(loopSubplan, loopHead.getParent()); |
| Assert.assertSame(loopSubplan, inLoopMap.getParent()); |
| } |
| |
| @Test |
| public void testNestedLoops() { |
| TestSource<Integer> mainSource = new TestSource<>(Integer.class); |
| mainSource.setName("mainSource"); |
| |
| TestLoopHead<Integer> outerLoopHead = new TestLoopHead<>(Integer.class); |
| mainSource.connectTo("out", outerLoopHead, "initialInput"); |
| outerLoopHead.setName("outerLoopHead"); |
| |
| TestMapOperator<Integer, Integer> inOuterLoopMap = new TestMapOperator<>(Integer.class, Integer.class); |
| outerLoopHead.connectTo("loopOutput", inOuterLoopMap, "in"); |
| inOuterLoopMap.setName("inOuterLoopMap"); |
| |
| TestLoopHead<Integer> innerLoopHead = new TestLoopHead<>(Integer.class); |
| inOuterLoopMap.connectTo("out", innerLoopHead, "initialInput"); |
| innerLoopHead.setName("innerLoopHead"); |
| |
| TestMapOperator<Integer, Integer> inInnerLoopMap = new TestMapOperator<>(Integer.class, Integer.class); |
| innerLoopHead.connectTo("loopOutput", inInnerLoopMap, "in"); |
| inInnerLoopMap.connectTo("out", innerLoopHead, "loopInput"); |
| innerLoopHead.connectTo("finalOutput", outerLoopHead, "loopInput"); |
| inInnerLoopMap.setName("inInnerLoopMap"); |
| |
| |
| TestSink<Integer> sink = new TestSink<>(Integer.class); |
| outerLoopHead.connectTo("finalOutput", sink, "in"); |
| sink.setName("sink"); |
| |
| WayangPlan wayangPlan = new WayangPlan(sink); |
| |
| LoopIsolator.isolateLoops(wayangPlan); |
| |
| // Check the top-level plan. |
| final Operator allegedOuterLoopSubplan = sink.getEffectiveOccupant(0).getOwner(); |
| Assert.assertSame(LoopSubplan.class, allegedOuterLoopSubplan.getClass()); |
| Assert.assertSame(mainSource, allegedOuterLoopSubplan.getEffectiveOccupant(0).getOwner()); |
| |
| // Check the outer Subplan. |
| LoopSubplan outerSubplan = (LoopSubplan) allegedOuterLoopSubplan; |
| Assert.assertEquals(1, outerSubplan.getNumOutputs()); |
| Assert.assertEquals(1, outerSubplan.getNumInputs()); |
| Assert.assertSame(outerLoopHead.getOutput("finalOutput"), outerSubplan.traceOutput(outerSubplan.getOutput(0))); |
| List<InputSlot<?>> innerInputs = new ArrayList<>(outerSubplan.followInput(outerSubplan.getInput(0))); |
| Assert.assertEquals(1, innerInputs.size()); |
| Assert.assertSame(outerLoopHead.getInput("initialInput"), innerInputs.get(0)); |
| Assert.assertSame(outerSubplan, outerLoopHead.getParent()); |
| Assert.assertSame(outerSubplan, inOuterLoopMap.getParent()); |
| final Operator allegedInnerLoopSubplan = outerLoopHead.getEffectiveOccupant(outerLoopHead.getInput("loopInput")).getOwner(); |
| Assert.assertSame(LoopSubplan.class, allegedInnerLoopSubplan.getClass()); |
| |
| // Check the inner Subplan. |
| LoopSubplan innerSubplan = (LoopSubplan) allegedInnerLoopSubplan; |
| Assert.assertEquals(1, innerSubplan.getNumOutputs()); |
| Assert.assertEquals(1, innerSubplan.getNumInputs()); |
| Assert.assertSame(innerLoopHead.getOutput("finalOutput"), innerSubplan.traceOutput(innerSubplan.getOutput(0))); |
| innerInputs = new ArrayList<>(innerSubplan.followInput(innerSubplan.getInput(0))); |
| Assert.assertEquals(1, innerInputs.size()); |
| Assert.assertSame(innerLoopHead.getInput("initialInput"), innerInputs.get(0)); |
| Assert.assertSame(innerSubplan, innerLoopHead.getParent()); |
| Assert.assertSame(innerSubplan, inInnerLoopMap.getParent()); |
| |
| } |
| } |