70 lines
2.4 KiB
Java
70 lines
2.4 KiB
Java
package eu.dnetlib.jobs;
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import eu.dnetlib.featureextraction.FeatureTransformer;
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import eu.dnetlib.featureextraction.util.Utilities;
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import eu.dnetlib.support.ArgumentApplicationParser;
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import org.apache.spark.SparkConf;
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import org.apache.spark.api.java.JavaRDD;
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import org.apache.spark.api.java.JavaSparkContext;
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import org.apache.spark.sql.*;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.ws.rs.core.Feature;
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import java.io.IOException;
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import java.util.Optional;
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public class SparkTokenizer extends AbstractSparkJob {
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private static final Logger log = LoggerFactory.getLogger(SparkTokenizer.class);
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public SparkTokenizer(ArgumentApplicationParser parser, SparkSession spark) {
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super(parser, spark);
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}
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public static void main(String[] args) throws Exception {
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ArgumentApplicationParser parser = new ArgumentApplicationParser(
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readResource("/jobs/parameters/tokenizer_parameters.json", SparkTokenizer.class)
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);
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parser.parseArgument(args);
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SparkConf conf = new SparkConf();
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new SparkTokenizer(
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parser,
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getSparkSession(conf)
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).run();
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}
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@Override
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public void run() throws IOException {
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// read oozie parameters
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final String entitiesPath = parser.get("entitiesPath");
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final String workingPath = parser.get("workingPath");
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final String inputFieldJPath = parser.get("inputFieldJPath");
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final int numPartitions = Optional
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.ofNullable(parser.get("numPartitions"))
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.map(Integer::valueOf)
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.orElse(NUM_PARTITIONS);
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log.info("entitiesPath: '{}'", entitiesPath);
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log.info("workingPath: '{}'", workingPath);
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log.info("inputField: '{}'", inputFieldJPath);
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log.info("numPartitions: '{}'", numPartitions);
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JavaSparkContext context = JavaSparkContext.fromSparkContext(spark.sparkContext());
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SQLContext sqlContext = SQLContext.getOrCreate(spark.sparkContext());
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Dataset<Row> inputDS = Utilities.prepareDataset(sqlContext, context.textFile(entitiesPath).repartition(numPartitions), inputFieldJPath);
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Dataset<Row> tokensDS = FeatureTransformer.tokenizeData(inputDS);
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tokensDS
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.write()
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.mode(SaveMode.Overwrite)
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.save(workingPath + "/tokens");
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}
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}
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