/***********************************************************************************************************************
* 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.operators;
import eu.stratosphere.api.common.Plan;
import eu.stratosphere.api.java.record.operators.FileDataSink;
import eu.stratosphere.api.java.record.operators.FileDataSource;
import eu.stratosphere.api.java.record.functions.CrossFunction;
import eu.stratosphere.api.java.record.io.DelimitedInputFormat;
import eu.stratosphere.api.java.record.operators.CrossOperator;
import eu.stratosphere.compiler.PactCompiler;
import eu.stratosphere.configuration.Configuration;
import eu.stratosphere.test.operators.io.ContractITCaseIOFormats.ContractITCaseInputFormat;
import eu.stratosphere.test.operators.io.ContractITCaseIOFormats.ContractITCaseOutputFormat;
import eu.stratosphere.test.util.RecordAPITestBase;
import eu.stratosphere.types.IntValue;
import eu.stratosphere.types.Record;
import eu.stratosphere.types.StringValue;
import eu.stratosphere.util.Collector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.Serializable;
import java.util.Collection;
import java.util.LinkedList;
/**
*/
@RunWith(Parameterized.class)
public class CrossITCase extends RecordAPITestBase {
private static final Log LOG = LogFactory.getLog(CrossITCase.class);
String leftInPath = null;
String rightInPath = null;
String resultPath = null;
public CrossITCase(Configuration testConfig) {
super(testConfig);
}
private static final String LEFT_IN = "1 1\n2 2\n1 1\n2 2\n3 3\n4 4\n3 3\n4 4\n";
private static final String RIGHT_IN = "1 1\n1 2\n2 2\n2 4\n3 3\n3 6\n4 4\n4 8\n";
private static final String RESULT = "4 1\n4 1\n4 2\n4 2\n5 2\n5 2\n5 4\n5 4\n6 3\n6 3\n7 4\n7 4\n"
+ "5 0\n5 0\n5 1\n5 1\n6 1\n6 1\n6 3\n6 3\n7 2\n7 2\n8 3\n8 3\n"
+ "6 -1\n6 -1\n6 0\n6 0\n7 0\n7 0\n8 1\n8 1\n" + "7 -2\n7 -2\n7 -1\n7 -1\n8 -1\n8 -1\n";
@Override
protected void preSubmit() throws Exception {
leftInPath = createTempFile("left_in.txt", LEFT_IN);
rightInPath = createTempFile("right_in.txt", RIGHT_IN);
resultPath = getTempDirPath("result");
}
public static class TestCross extends CrossFunction implements Serializable {
private static final long serialVersionUID = 1L;
private StringValue string = new StringValue();
private IntValue integer = new IntValue();
@Override
public void cross(Record record1, Record record2, Collector<Record> out) {
string = record1.getField(1, string);
int val1 = Integer.parseInt(string.toString());
string = record2.getField(1, string);
int val2 = Integer.parseInt(string.toString());
string = record1.getField(0, string);
int key1 = Integer.parseInt(string.toString());
string = record2.getField(0, string);
int key2 = Integer.parseInt(string.toString());
LOG.debug("Processing { [" + key1 + "," + val1 + "] , [" + key2 + "," + val2 + "] }");
if (val1 + val2 <= 6) {
string.setValue((key1 + key2 + 2) + "");
integer.setValue(val2 - val1 + 1);
record1.setField(0, string);
record1.setField(1, integer);
out.collect(record1);
}
}
}
@Override
protected Plan getTestJob() {
FileDataSource input_left = new FileDataSource(
new ContractITCaseInputFormat(), leftInPath);
DelimitedInputFormat.configureDelimitedFormat(input_left)
.recordDelimiter('\n');
input_left.setDegreeOfParallelism(config.getInteger("CrossTest#NoSubtasks", 1));
FileDataSource input_right = new FileDataSource(
new ContractITCaseInputFormat(), rightInPath);
DelimitedInputFormat.configureDelimitedFormat(input_right)
.recordDelimiter('\n');
input_right.setDegreeOfParallelism(config.getInteger("CrossTest#NoSubtasks", 1));
CrossOperator testCross = CrossOperator.builder(new TestCross()).build();
testCross.setDegreeOfParallelism(config.getInteger("CrossTest#NoSubtasks", 1));
testCross.getParameters().setString(PactCompiler.HINT_LOCAL_STRATEGY,
config.getString("CrossTest#LocalStrategy", ""));
if (config.getString("CrossTest#ShipStrategy", "").equals("BROADCAST_FIRST")) {
testCross.getParameters().setString(PactCompiler.HINT_SHIP_STRATEGY_FIRST_INPUT,
PactCompiler.HINT_SHIP_STRATEGY_BROADCAST);
testCross.getParameters().setString(PactCompiler.HINT_SHIP_STRATEGY_SECOND_INPUT,
PactCompiler.HINT_SHIP_STRATEGY_FORWARD);
} else if (config.getString("CrossTest#ShipStrategy", "").equals("BROADCAST_SECOND")) {
testCross.getParameters().setString(PactCompiler.HINT_SHIP_STRATEGY_FIRST_INPUT,
PactCompiler.HINT_SHIP_STRATEGY_BROADCAST);
testCross.getParameters().setString(PactCompiler.HINT_SHIP_STRATEGY_SECOND_INPUT,
PactCompiler.HINT_SHIP_STRATEGY_FORWARD);
} else {
testCross.getParameters().setString(PactCompiler.HINT_SHIP_STRATEGY,
config.getString("CrossTest#ShipStrategy", ""));
}
FileDataSink output = new FileDataSink(
new ContractITCaseOutputFormat(), resultPath);
output.setDegreeOfParallelism(1);
output.setInput(testCross);
testCross.setFirstInput(input_left);
testCross.setSecondInput(input_right);
return new Plan(output);
}
@Override
protected void postSubmit() throws Exception {
compareResultsByLinesInMemory(RESULT, resultPath);
}
@Parameters
public static Collection<Object[]> getConfigurations() throws FileNotFoundException, IOException {
LinkedList<Configuration> tConfigs = new LinkedList<Configuration>();
String[] localStrategies = { PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_BLOCKED_OUTER_FIRST,
PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_BLOCKED_OUTER_SECOND,
PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_STREAMED_OUTER_FIRST,
PactCompiler.HINT_LOCAL_STRATEGY_NESTEDLOOP_STREAMED_OUTER_SECOND };
String[] shipStrategies = { "BROADCAST_FIRST", "BROADCAST_SECOND"
// PactCompiler.HINT_SHIP_STRATEGY_BROADCAST
// PactCompiler.HINT_SHIP_STRATEGY_SFR
};
for (String localStrategy : localStrategies) {
for (String shipStrategy : shipStrategies) {
Configuration config = new Configuration();
config.setString("CrossTest#LocalStrategy", localStrategy);
config.setString("CrossTest#ShipStrategy", shipStrategy);
config.setInteger("CrossTest#NoSubtasks", 4);
tConfigs.add(config);
}
}
return toParameterList(tConfigs);
}
}