/***********************************************************************************************************************
* 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.MapFunction;
import eu.stratosphere.api.java.record.io.DelimitedInputFormat;
import eu.stratosphere.api.java.record.operators.MapOperator;
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 MapITCase extends RecordAPITestBase {
private static final Log LOG = LogFactory.getLog(MapITCase.class);
String inPath = null;
String resultPath = null;
public MapITCase(Configuration testConfig) {
super(testConfig);
}
private static final String IN = "1 1\n2 2\n2 8\n4 4\n4 4\n6 6\n7 7\n8 8\n" +
"1 1\n2 2\n2 2\n4 4\n4 4\n6 3\n5 9\n8 8\n1 1\n2 2\n2 2\n3 0\n4 4\n" +
"5 9\n7 7\n8 8\n1 1\n9 1\n5 9\n4 4\n4 4\n6 6\n7 7\n8 8\n";
private static final String RESULT = "1 11\n2 12\n4 14\n4 14\n1 11\n2 12\n2 12\n4 14\n4 14\n3 16\n1 11\n2 12\n2 12\n0 13\n4 14\n1 11\n4 14\n4 14\n";
@Override
protected void preSubmit() throws Exception {
inPath = createTempFile("in.txt", IN);
resultPath = getTempDirPath("result");
}
public static class TestMapper extends MapFunction implements Serializable {
private static final long serialVersionUID = 1L;
private StringValue keyString = new StringValue();
private StringValue valueString = new StringValue();
@Override
public void map(Record record, Collector<Record> out) throws Exception {
keyString = record.getField(0, keyString);
valueString = record.getField(1, valueString);
LOG.debug("Processed: [" + keyString.toString() + "," + valueString.getValue() + "]");
if (Integer.parseInt(keyString.toString()) + Integer.parseInt(valueString.toString()) < 10) {
record.setField(0, valueString);
record.setField(1, new IntValue(Integer.parseInt(keyString.toString()) + 10));
out.collect(record);
}
}
}
@Override
protected Plan getTestJob() {
FileDataSource input = new FileDataSource(
new ContractITCaseInputFormat(), inPath);
DelimitedInputFormat.configureDelimitedFormat(input)
.recordDelimiter('\n');
input.setDegreeOfParallelism(config.getInteger("MapTest#NoSubtasks", 1));
MapOperator testMapper = MapOperator.builder(new TestMapper()).build();
testMapper.setDegreeOfParallelism(config.getInteger("MapTest#NoSubtasks", 1));
FileDataSink output = new FileDataSink(
new ContractITCaseOutputFormat(), resultPath);
output.setDegreeOfParallelism(1);
output.setInput(testMapper);
testMapper.setInput(input);
return new Plan(output);
}
@Override
protected void postSubmit() throws Exception {
compareResultsByLinesInMemory(RESULT, resultPath);
}
@Parameters
public static Collection<Object[]> getConfigurations() throws FileNotFoundException, IOException {
LinkedList<Configuration> testConfigs = new LinkedList<Configuration>();
Configuration config = new Configuration();
config.setInteger("MapTest#NoSubtasks", 4);
testConfigs.add(config);
return toParameterList(testConfigs);
}
}