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Java example source code file (SparkDataUtils.java)

This example Java source code file (SparkDataUtils.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

javardd, javasparkcontext, recordreader, recordreaderfunction, sparkdatautils

The SparkDataUtils.java Java example source code

package org.deeplearning4j.spark.util;

import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.canova.api.records.reader.RecordReader;
import org.deeplearning4j.spark.canova.RecordReaderFunction;
import org.nd4j.linalg.dataset.DataSet;

/**
 * Created by Alex on 15/06/2016.
 */
public class SparkDataUtils {

    private JavaRDD<DataSet> loadFromTextFile(String path, int labelIndex, int numClasses, RecordReader recordReader, JavaSparkContext sc){
        JavaRDD<String> lines = sc.textFile(path);
        // gotta map this to a Matrix/INDArray
        return lines.map(new RecordReaderFunction(recordReader, labelIndex, numClasses));
    }

}

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