/***********************************************************************************************************************
* 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.iterative;
import java.util.ArrayList;
import java.util.List;
import eu.stratosphere.api.common.Plan;
import eu.stratosphere.test.recordJobs.kmeans.KMeansBroadcast;
import eu.stratosphere.test.testdata.KMeansData;
import eu.stratosphere.test.util.RecordAPITestBase;
public class KMeansITCase extends RecordAPITestBase {
protected String dataPath;
protected String clusterPath;
protected String resultPath;
@Override
protected void preSubmit() throws Exception {
dataPath = createTempFile("datapoints.txt", KMeansData.DATAPOINTS);
clusterPath = createTempFile("initial_centers.txt", KMeansData.INITIAL_CENTERS);
resultPath = getTempDirPath("result");
}
@Override
protected Plan getTestJob() {
KMeansBroadcast kmi = new KMeansBroadcast();
return kmi.getPlan("4", dataPath, clusterPath, resultPath, "20");
}
@Override
protected void postSubmit() throws Exception {
List<String> resultLines = new ArrayList<String>();
readAllResultLines(resultLines, resultPath);
KMeansData.checkResultsWithDelta(KMeansData.CENTERS_AFTER_20_ITERATIONS_SINGLE_DIGIT, resultLines, 0.1);
}
}