/***********************************************************************************************************************
*
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* Licensed 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 eu.stratosphere.test.javaApiOperators;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Collection;
import java.util.LinkedList;
import eu.stratosphere.api.java.tuple.Tuple6;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import eu.stratosphere.api.java.DataSet;
import eu.stratosphere.api.java.ExecutionEnvironment;
import eu.stratosphere.api.java.functions.CrossFunction;
import eu.stratosphere.api.java.tuple.Tuple2;
import eu.stratosphere.api.java.tuple.Tuple3;
import eu.stratosphere.api.java.tuple.Tuple5;
import eu.stratosphere.configuration.Configuration;
import eu.stratosphere.test.javaApiOperators.util.CollectionDataSets;
import eu.stratosphere.test.javaApiOperators.util.CollectionDataSets.CustomType;
import eu.stratosphere.test.util.JavaProgramTestBase;
@RunWith(Parameterized.class)
public class CrossITCase extends JavaProgramTestBase {
private static int NUM_PROGRAMS = 11;
private int curProgId = config.getInteger("ProgramId", -1);
private String resultPath;
private String expectedResult;
public CrossITCase(Configuration config) {
super(config);
}
@Override
protected void preSubmit() throws Exception {
resultPath = getTempDirPath("result");
}
@Override
protected void testProgram() throws Exception {
expectedResult = CrossProgs.runProgram(curProgId, resultPath);
}
@Override
protected void postSubmit() throws Exception {
compareResultsByLinesInMemory(expectedResult, resultPath);
}
@Parameters
public static Collection<Object[]> getConfigurations() throws FileNotFoundException, IOException {
LinkedList<Configuration> tConfigs = new LinkedList<Configuration>();
for(int i=1; i <= NUM_PROGRAMS; i++) {
Configuration config = new Configuration();
config.setInteger("ProgramId", i);
tConfigs.add(config);
}
return toParameterList(tConfigs);
}
private static class CrossProgs {
public static String runProgram(int progId, String resultPath) throws Exception {
switch(progId) {
case 1: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 2: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 3: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 4: {
/*
* 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");
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 5: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 6: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 7: {
/*
* 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)
.types(String.class, Long.class, String.class, Integer.class, Long.class, Long.class);
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 8: {
/*
* 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)
.types(String.class, String.class, Long.class, Long.class, Long.class, Integer.class);
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
case 9: {
/*
* 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);
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "(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";
}
case 10: {
/*
* 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());
crossDs.writeAsText(resultPath);
env.execute();
// return expected result
return "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";
}
case 11: {
/*
* 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());
crossDs.writeAsCsv(resultPath);
env.execute();
// return expected result
return "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";
}
default:
throw new IllegalArgumentException("Invalid program id");
}
}
}
public static class Tuple5Cross extends 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 extends 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 extends 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 extends 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 extends 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 CrossFunction<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);
}
}
}