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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 org.apache.flink.optimizer;
import org.apache.flink.api.common.Plan;
import org.apache.flink.api.common.functions.JoinFunction;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.common.functions.ReduceFunction;
import org.apache.flink.api.common.operators.base.InnerJoinOperatorBase;
import org.apache.flink.api.common.operators.base.MapOperatorBase;
import org.apache.flink.api.common.operators.base.ReduceOperatorBase;
import org.apache.flink.api.common.operators.util.FieldSet;
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.tuple.Tuple3;
import org.apache.flink.optimizer.dataproperties.GlobalProperties;
import org.apache.flink.optimizer.dataproperties.LocalProperties;
import org.apache.flink.optimizer.dataproperties.PartitioningProperty;
import org.apache.flink.optimizer.plan.Channel;
import org.apache.flink.optimizer.plan.DualInputPlanNode;
import org.apache.flink.optimizer.plan.OptimizedPlan;
import org.apache.flink.optimizer.plan.PlanNode;
import org.apache.flink.optimizer.plan.SingleInputPlanNode;
import org.apache.flink.runtime.operators.shipping.ShipStrategyType;
import org.apache.flink.optimizer.util.CompilerTestBase;
import org.apache.flink.util.Visitor;
import org.junit.Assert;
import org.junit.Test;
@SuppressWarnings("serial")
public class SemanticPropertiesAPIToPlanTest extends CompilerTestBase {
@Test
public void forwardFieldsTestMapReduce() {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Integer, Integer>> set = env.readCsvFile(IN_FILE).types(Integer.class, Integer.class, Integer.class);
set = set.map(new MockMapper()).withForwardedFields("*")
.groupBy(0)
.reduce(new MockReducer()).withForwardedFields("f0->f1")
.map(new MockMapper()).withForwardedFields("*")
.groupBy(1)
.reduce(new MockReducer()).withForwardedFields("*");
set.output(new DiscardingOutputFormat<Tuple3<Integer, Integer, Integer>>());
Plan plan = env.createProgramPlan();
OptimizedPlan oPlan = compileWithStats(plan);
oPlan.accept(new Visitor<PlanNode>() {
@Override
public boolean preVisit(PlanNode visitable) {
if (visitable instanceof SingleInputPlanNode && visitable.getProgramOperator() instanceof ReduceOperatorBase) {
for (Channel input: visitable.getInputs()) {
GlobalProperties gprops = visitable.getGlobalProperties();
LocalProperties lprops = visitable.getLocalProperties();
Assert.assertTrue("Reduce should just forward the input if it is already partitioned",
input.getShipStrategy() == ShipStrategyType.FORWARD);
Assert.assertTrue("Wrong GlobalProperties on Reducer",
gprops.isPartitionedOnFields(new FieldSet(1)));
Assert.assertTrue("Wrong GlobalProperties on Reducer",
gprops.getPartitioning() == PartitioningProperty.HASH_PARTITIONED);
Assert.assertTrue("Wrong LocalProperties on Reducer",
lprops.getGroupedFields().contains(1));
}
}
if (visitable instanceof SingleInputPlanNode && visitable.getProgramOperator() instanceof MapOperatorBase) {
for (Channel input: visitable.getInputs()) {
GlobalProperties gprops = visitable.getGlobalProperties();
LocalProperties lprops = visitable.getLocalProperties();
Assert.assertTrue("Map should just forward the input if it is already partitioned",
input.getShipStrategy() == ShipStrategyType.FORWARD);
Assert.assertTrue("Wrong GlobalProperties on Mapper",
gprops.isPartitionedOnFields(new FieldSet(1)));
Assert.assertTrue("Wrong GlobalProperties on Mapper",
gprops.getPartitioning() == PartitioningProperty.HASH_PARTITIONED);
Assert.assertTrue("Wrong LocalProperties on Mapper",
lprops.getGroupedFields().contains(1));
}
return false;
}
return true;
}
@Override
public void postVisit(PlanNode visitable) {
}
});
}
@Test
public void forwardFieldsTestJoin() {
ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Integer, Integer>> in1 = env.readCsvFile(IN_FILE).types(Integer.class, Integer.class, Integer.class);
DataSet<Tuple3<Integer, Integer, Integer>> in2 = env.readCsvFile(IN_FILE).types(Integer.class, Integer.class, Integer.class);
in1 = in1.map(new MockMapper()).withForwardedFields("*")
.groupBy(0)
.reduce(new MockReducer()).withForwardedFields("f0->f1");
in2 = in2.map(new MockMapper()).withForwardedFields("*")
.groupBy(1)
.reduce(new MockReducer()).withForwardedFields("f1->f2");
DataSet<Tuple3<Integer, Integer, Integer>> out = in1.join(in2).where(1).equalTo(2).with(new MockJoin());
out.output(new DiscardingOutputFormat<Tuple3<Integer, Integer, Integer>>());
Plan plan = env.createProgramPlan();
OptimizedPlan oPlan = compileWithStats(plan);
oPlan.accept(new Visitor<PlanNode>() {
@Override
public boolean preVisit(PlanNode visitable) {
if (visitable instanceof DualInputPlanNode && visitable.getProgramOperator() instanceof InnerJoinOperatorBase) {
DualInputPlanNode node = ((DualInputPlanNode) visitable);
final Channel inConn1 = node.getInput1();
final Channel inConn2 = node.getInput2();
Assert.assertTrue("Join should just forward the input if it is already partitioned",
inConn1.getShipStrategy() == ShipStrategyType.FORWARD);
Assert.assertTrue("Join should just forward the input if it is already partitioned",
inConn2.getShipStrategy() == ShipStrategyType.FORWARD);
return false;
}
return true;
}
@Override
public void postVisit(PlanNode visitable) {
}
});
}
public static class MockMapper implements MapFunction<Tuple3<Integer, Integer, Integer>, Tuple3<Integer, Integer, Integer>> {
@Override
public Tuple3<Integer, Integer, Integer> map(Tuple3<Integer, Integer, Integer> value) throws Exception {
return null;
}
}
public static class MockReducer implements ReduceFunction<Tuple3<Integer, Integer, Integer>> {
@Override
public Tuple3<Integer, Integer, Integer> reduce(Tuple3<Integer, Integer, Integer> value1, Tuple3<Integer, Integer, Integer> value2) throws Exception {
return null;
}
}
public static class MockJoin implements JoinFunction<Tuple3<Integer, Integer, Integer>,
Tuple3<Integer, Integer, Integer>, Tuple3<Integer, Integer, Integer>> {
@Override
public Tuple3<Integer, Integer, Integer> join(Tuple3<Integer, Integer, Integer> first, Tuple3<Integer, Integer, Integer> second) throws Exception {
return null;
}
}
}