/*
* 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.test.javaApiOperators;
import java.util.Collection;
import java.util.List;
import org.apache.flink.api.common.functions.CrossFunction;
import org.apache.flink.api.common.functions.RichCrossFunction;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.api.java.tuple.Tuple5;
import org.apache.flink.api.java.tuple.Tuple6;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.test.javaApiOperators.util.CollectionDataSets;
import org.apache.flink.test.javaApiOperators.util.CollectionDataSets.CustomType;
import org.apache.flink.test.util.MultipleProgramsTestBase;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.ExecutionEnvironment;
@RunWith(Parameterized.class)
public class CrossITCase extends MultipleProgramsTestBase {
public CrossITCase(TestExecutionMode mode){
super(mode);
}
@Test
public void testCorretnessOfCrossOnTwoTupleInputs() throws Exception {
/*
* check correctness of cross on two tuple inputs
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple2<Integer, String>> crossDs = ds.cross(ds2).with(new Tuple5Cross());
List<Tuple2<Integer, String>> result = crossDs.collect();
String expected = "0,HalloHallo\n" +
"1,HalloHallo Welt\n" +
"2,HalloHallo Welt wie\n" +
"1,Hallo WeltHallo\n" +
"2,Hallo WeltHallo Welt\n" +
"3,Hallo WeltHallo Welt wie\n" +
"2,Hallo Welt wieHallo\n" +
"3,Hallo Welt wieHallo Welt\n" +
"4,Hallo Welt wieHallo Welt wie\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossIfUDFReturnsLeftInputObject() throws Exception {
/*
* check correctness of cross if UDF returns left input object
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.getSmall3TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple3<Integer, Long, String>> crossDs = ds.cross(ds2).with(new Tuple3ReturnLeft());
List<Tuple3<Integer, Long, String>> result = crossDs.collect();
String expected = "1,1,Hi\n" +
"1,1,Hi\n" +
"1,1,Hi\n" +
"2,2,Hello\n" +
"2,2,Hello\n" +
"2,2,Hello\n" +
"3,2,Hello world\n" +
"3,2,Hello world\n" +
"3,2,Hello world\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossIfUDFReturnsRightInputObject() throws Exception {
/*
* check correctness of cross if UDF returns right input object
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.getSmall3TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> crossDs = ds.cross(ds2).with(new Tuple5ReturnRight());
List<Tuple5<Integer, Long, Integer, String, Long>> result = crossDs
.collect();
String expected = "1,1,0,Hallo,1\n" +
"1,1,0,Hallo,1\n" +
"1,1,0,Hallo,1\n" +
"2,2,1,Hallo Welt,2\n" +
"2,2,1,Hallo Welt,2\n" +
"2,2,1,Hallo Welt,2\n" +
"2,3,2,Hallo Welt wie,1\n" +
"2,3,2,Hallo Welt wie,1\n" +
"2,3,2,Hallo Welt wie,1\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossWithBroadcastSet() throws Exception {
/*
* check correctness of cross with broadcast set
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Integer> intDs = CollectionDataSets.getIntegerDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple3<Integer, Integer, Integer>> crossDs = ds.cross(ds2).with(new Tuple5CrossBC()).withBroadcastSet(intDs, "ints");
List<Tuple3<Integer, Integer, Integer>> result = crossDs.collect();
String expected = "2,0,55\n" +
"3,0,55\n" +
"3,0,55\n" +
"3,0,55\n" +
"4,1,55\n" +
"4,2,55\n" +
"3,0,55\n" +
"4,2,55\n" +
"4,4,55\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossWithHuge() throws Exception {
/*
* check correctness of crossWithHuge (only correctness of result -> should be the same as with normal cross)
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple2<Integer, String>> crossDs = ds.crossWithHuge(ds2).with(new Tuple5Cross());
List<Tuple2<Integer, String>> result = crossDs.collect();
String expected = "0,HalloHallo\n" +
"1,HalloHallo Welt\n" +
"2,HalloHallo Welt wie\n" +
"1,Hallo WeltHallo\n" +
"2,Hallo WeltHallo Welt\n" +
"3,Hallo WeltHallo Welt wie\n" +
"2,Hallo Welt wieHallo\n" +
"3,Hallo Welt wieHallo Welt\n" +
"4,Hallo Welt wieHallo Welt wie\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossWithTiny() throws Exception {
/*
* check correctness of crossWithTiny (only correctness of result -> should be the same as with normal cross)
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple2<Integer, String>> crossDs = ds.crossWithTiny(ds2).with(new Tuple5Cross());
List<Tuple2<Integer, String>> result = crossDs.collect();
String expected = "0,HalloHallo\n" +
"1,HalloHallo Welt\n" +
"2,HalloHallo Welt wie\n" +
"1,Hallo WeltHallo\n" +
"2,Hallo WeltHallo Welt\n" +
"3,Hallo WeltHallo Welt wie\n" +
"2,Hallo Welt wieHallo\n" +
"3,Hallo Welt wieHallo Welt\n" +
"4,Hallo Welt wieHallo Welt wie\n";
compareResultAsTuples(result, expected);
}
@Test
public void testProjectCrossOnATupleInput1() throws Exception{
/*
* project cross on a tuple input 1
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.getSmall3TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple6<String, Long, String, Integer, Long, Long>> crossDs = ds.cross(ds2)
.projectFirst(2, 1)
.projectSecond(3)
.projectFirst(0)
.projectSecond(4,1);
List<Tuple6<String, Long, String, Integer, Long, Long>> result = crossDs.collect();
String expected = "Hi,1,Hallo,1,1,1\n" +
"Hi,1,Hallo Welt,1,2,2\n" +
"Hi,1,Hallo Welt wie,1,1,3\n" +
"Hello,2,Hallo,2,1,1\n" +
"Hello,2,Hallo Welt,2,2,2\n" +
"Hello,2,Hallo Welt wie,2,1,3\n" +
"Hello world,2,Hallo,3,1,1\n" +
"Hello world,2,Hallo Welt,3,2,2\n" +
"Hello world,2,Hallo Welt wie,3,1,3\n";
compareResultAsTuples(result, expected);
}
@Test
public void testProjectCrossOnATupleInput2() throws Exception {
/*
* project cross on a tuple input 2
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.getSmall3TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple6<String, String, Long, Long, Long,Integer>> crossDs = ds.cross(ds2)
.projectSecond(3)
.projectFirst(2, 1)
.projectSecond(4,1)
.projectFirst(0);
List<Tuple6<String, String, Long, Long, Long, Integer>> result = crossDs.collect();
String expected = "Hallo,Hi,1,1,1,1\n" +
"Hallo Welt,Hi,1,2,2,1\n" +
"Hallo Welt wie,Hi,1,1,3,1\n" +
"Hallo,Hello,2,1,1,2\n" +
"Hallo Welt,Hello,2,2,2,2\n" +
"Hallo Welt wie,Hello,2,1,3,2\n" +
"Hallo,Hello world,2,1,1,3\n" +
"Hallo Welt,Hello world,2,2,2,3\n" +
"Hallo Welt wie,Hello world,2,1,3,3\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfDefaultCross() throws Exception {
/*
* check correctness of default cross
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple3<Integer, Long, String>> ds = CollectionDataSets.getSmall3TupleDataSet(env);
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds2 = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<Tuple2<Tuple3<Integer, Long, String>, Tuple5<Integer, Long, Integer, String, Long>>> crossDs = ds.cross(ds2);
List<Tuple2<Tuple3<Integer, Long, String>, Tuple5<Integer, Long, Integer, String, Long>>> result = crossDs.collect();
String expected = "(1,1,Hi),(2,2,1,Hallo Welt,2)\n"
+
"(1,1,Hi),(1,1,0,Hallo,1)\n" +
"(1,1,Hi),(2,3,2,Hallo Welt wie,1)\n" +
"(2,2,Hello),(2,2,1,Hallo Welt,2)\n" +
"(2,2,Hello),(1,1,0,Hallo,1)\n" +
"(2,2,Hello),(2,3,2,Hallo Welt wie,1)\n" +
"(3,2,Hello world),(2,2,1,Hallo Welt,2)\n" +
"(3,2,Hello world),(1,1,0,Hallo,1)\n" +
"(3,2,Hello world),(2,3,2,Hallo Welt wie,1)\n";
compareResultAsTuples(result, expected);
}
@Test
public void testCorrectnessOfCrossOnTwoCustomTypeInputs() throws Exception {
/*
* check correctness of cross on two custom type inputs
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<CustomType> ds = CollectionDataSets.getSmallCustomTypeDataSet(env);
DataSet<CustomType> ds2 = CollectionDataSets.getSmallCustomTypeDataSet(env);
DataSet<CustomType> crossDs = ds.cross(ds2).with(new CustomTypeCross());
List<CustomType> result = crossDs.collect();
String expected = "1,0,HiHi\n"
+ "2,1,HiHello\n"
+ "2,2,HiHello world\n"
+ "2,1,HelloHi\n"
+ "4,2,HelloHello\n"
+ "4,3,HelloHello world\n"
+ "2,2,Hello worldHi\n"
+ "4,3,Hello worldHello\n"
+ "4,4,Hello worldHello world";
compareResultAsText(result, expected);
}
@Test
public void testCorrectnessOfCrossATupleInputAndACustomTypeInput() throws Exception {
/*
* check correctness of cross a tuple input and a custom type input
*/
final ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
DataSet<Tuple5<Integer, Long, Integer, String, Long>> ds = CollectionDataSets.getSmall5TupleDataSet(env);
DataSet<CustomType> ds2 = CollectionDataSets.getSmallCustomTypeDataSet(env);
DataSet<Tuple3<Integer, Long, String>> crossDs = ds.cross(ds2).with(new MixedCross());
List<Tuple3<Integer, Long, String>> result = crossDs.collect();
String expected = "2,0,HalloHi\n" +
"3,0,HalloHello\n" +
"3,0,HalloHello world\n" +
"3,0,Hallo WeltHi\n" +
"4,1,Hallo WeltHello\n" +
"4,2,Hallo WeltHello world\n" +
"3,0,Hallo Welt wieHi\n" +
"4,2,Hallo Welt wieHello\n" +
"4,4,Hallo Welt wieHello world\n";
compareResultAsTuples(result, expected);
}
public static class Tuple5Cross implements CrossFunction<Tuple5<Integer, Long, Integer, String, Long>, Tuple5<Integer, Long, Integer, String, Long>, Tuple2<Integer, String>> {
private static final long serialVersionUID = 1L;
@Override
public Tuple2<Integer, String> cross(
Tuple5<Integer, Long, Integer, String, Long> first,
Tuple5<Integer, Long, Integer, String, Long> second)
throws Exception {
return new Tuple2<Integer, String>(first.f2+second.f2, first.f3+second.f3);
}
}
public static class CustomTypeCross implements CrossFunction<CustomType, CustomType, CustomType> {
private static final long serialVersionUID = 1L;
@Override
public CustomType cross(CustomType first, CustomType second)
throws Exception {
return new CustomType(first.myInt * second.myInt, first.myLong + second.myLong, first.myString + second.myString);
}
}
public static class MixedCross implements CrossFunction<Tuple5<Integer, Long, Integer, String, Long>, CustomType, Tuple3<Integer, Long, String>> {
private static final long serialVersionUID = 1L;
@Override
public Tuple3<Integer, Long, String> cross(
Tuple5<Integer, Long, Integer, String, Long> first,
CustomType second) throws Exception {
return new Tuple3<Integer, Long, String>(first.f0 + second.myInt, first.f2 * second.myLong, first.f3 + second.myString);
}
}
public static class Tuple3ReturnLeft implements CrossFunction<Tuple3<Integer, Long, String>, Tuple5<Integer, Long, Integer, String, Long>, Tuple3<Integer, Long, String>> {
private static final long serialVersionUID = 1L;
@Override
public Tuple3<Integer, Long, String> cross(
Tuple3<Integer, Long, String> first,
Tuple5<Integer, Long, Integer, String, Long> second) throws Exception {
return first;
}
}
public static class Tuple5ReturnRight implements CrossFunction<Tuple3<Integer, Long, String>, Tuple5<Integer, Long, Integer, String, Long>, Tuple5<Integer, Long, Integer, String, Long>> {
private static final long serialVersionUID = 1L;
@Override
public Tuple5<Integer, Long, Integer, String, Long> cross(
Tuple3<Integer, Long, String> first,
Tuple5<Integer, Long, Integer, String, Long> second)
throws Exception {
return second;
}
}
public static class Tuple5CrossBC extends RichCrossFunction<Tuple5<Integer, Long, Integer, String, Long>, Tuple5<Integer, Long, Integer, String, Long>, Tuple3<Integer, Integer, Integer>> {
private static final long serialVersionUID = 1L;
private int broadcast = 42;
@Override
public void open(Configuration config) {
Collection<Integer> ints = this.getRuntimeContext().getBroadcastVariable("ints");
int sum = 0;
for(Integer i : ints) {
sum += i;
}
broadcast = sum;
}
@Override
public Tuple3<Integer, Integer, Integer> cross(
Tuple5<Integer, Long, Integer, String, Long> first,
Tuple5<Integer, Long, Integer, String, Long> second)
throws Exception {
return new Tuple3<Integer, Integer, Integer>(first.f0 + second.f0, first.f2 * second.f2, broadcast);
}
}
}