forked from D-Net/dnet-hadoop
67 lines
1.9 KiB
Java
67 lines
1.9 KiB
Java
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package eu.dnetlib.dhp.ircdl_extention;
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import static eu.dnetlib.dhp.common.SparkSessionSupport.runWithSparkHiveSession;
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import java.util.Optional;
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import org.apache.commons.io.IOUtils;
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import org.apache.spark.SparkConf;
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import org.apache.spark.api.java.function.FilterFunction;
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import org.apache.spark.sql.Dataset;
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import org.apache.spark.sql.SaveMode;
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import org.apache.spark.sql.SparkSession;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.ircdl_extention.model.Result;
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public class PrepareCrossrefSpark {
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public static void main(String[] args) throws Exception {
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String jsonConfiguration = IOUtils
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.toString(
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PrepareCrossrefSpark.class
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.getResourceAsStream(
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"/eu/dnetlib/dhp/ircdl_extention/prepare_parameters.json"));
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(jsonConfiguration);
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parser.parseArgument(args);
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Boolean isSparkSessionManaged = Optional
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.ofNullable(parser.get("isSparkSessionManaged"))
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.map(Boolean::valueOf)
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.orElse(Boolean.TRUE);
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final String inputPath = parser.get("inputPath");
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final String outputPath = parser.get("outputPath");
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SparkConf conf = new SparkConf();
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conf.set("hive.metastore.uris", "thrift://iis-cdh5-test-m3.ocean.icm.edu.pl:9083");
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runWithSparkHiveSession(
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conf,
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isSparkSessionManaged,
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spark -> {
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Utils.removeOutputDir(spark, outputPath);
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selectResult(spark, inputPath, outputPath);
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});
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}
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private static Dataset<Result> selectResult(SparkSession spark, String input_path, String output_path) {
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Dataset<Result> res = Utils
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.readPath(
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spark, input_path, Result.class)
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.filter(
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(FilterFunction<Result>) r -> !r.getId().startsWith("50|dedup") &&
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r.getCf().stream().anyMatch(cf -> cf.getValue().equals("Crossref")));
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res.write().option("compression", "gzip").mode(SaveMode.Overwrite).json(output_path);
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return res;
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}
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}
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