/*
* 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.iterative;
import java.util.ArrayList;
import java.util.List;
import org.apache.flink.api.common.Plan;
import org.apache.flink.test.recordJobs.kmeans.KMeansBroadcast;
import org.apache.flink.test.testdata.KMeansData;
import org.apache.flink.test.util.RecordAPITestBase;
public class KMeansITCase extends RecordAPITestBase {
protected String dataPath;
protected String clusterPath;
protected String resultPath;
public KMeansITCase(){
setTaskManagerNumSlots(DOP);
}
@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(String.valueOf(DOP), 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);
}
}