| /* |
| * 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.flink.optimizer; |
| |
| import org.apache.flink.api.common.Plan; |
| import org.apache.flink.api.common.functions.MapFunction; |
| import org.apache.flink.api.java.DataSet; |
| import org.apache.flink.api.java.ExecutionEnvironment; |
| import org.apache.flink.api.java.io.DiscardingOutputFormat; |
| import org.apache.flink.api.java.operators.DeltaIteration; |
| import org.apache.flink.api.java.tuple.Tuple2; |
| import org.apache.flink.optimizer.plan.OptimizedPlan; |
| import org.apache.flink.optimizer.plan.WorksetIterationPlanNode; |
| import org.apache.flink.optimizer.plantranslate.JobGraphGenerator; |
| import org.apache.flink.optimizer.util.CompilerTestBase; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| |
| @SuppressWarnings("serial") |
| public class WorksetIterationCornerCasesTest extends CompilerTestBase { |
| |
| @Test |
| public void testWorksetIterationNotDependingOnSolutionSet() { |
| try { |
| ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment(); |
| |
| DataSet<Tuple2<Long, Long>> input = |
| env.generateSequence(1, 100).map(new Duplicator<Long>()); |
| |
| DeltaIteration<Tuple2<Long, Long>, Tuple2<Long, Long>> iteration = |
| input.iterateDelta(input, 100, 1); |
| |
| DataSet<Tuple2<Long, Long>> iterEnd = |
| iteration.getWorkset().map(new TestMapper<Tuple2<Long, Long>>()); |
| iteration |
| .closeWith(iterEnd, iterEnd) |
| .output(new DiscardingOutputFormat<Tuple2<Long, Long>>()); |
| |
| Plan p = env.createProgramPlan(); |
| OptimizedPlan op = compileNoStats(p); |
| |
| WorksetIterationPlanNode wipn = |
| (WorksetIterationPlanNode) |
| op.getDataSinks().iterator().next().getInput().getSource(); |
| assertTrue(wipn.getSolutionSetPlanNode().getOutgoingChannels().isEmpty()); |
| |
| JobGraphGenerator jgg = new JobGraphGenerator(); |
| jgg.compileJobGraph(op); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| fail(e.getMessage()); |
| } |
| } |
| |
| private static final class Duplicator<T> implements MapFunction<T, Tuple2<T, T>> { |
| @Override |
| public Tuple2<T, T> map(T value) { |
| return new Tuple2<T, T>(value, value); |
| } |
| } |
| |
| private static final class TestMapper<T> implements MapFunction<T, T> { |
| @Override |
| public T map(T value) { |
| return value; |
| } |
| } |
| } |