forked from D-Net/dnet-hadoop
49 lines
1.8 KiB
Java
49 lines
1.8 KiB
Java
package eu.dnetlib.dhp.graph;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.graph.utils.ContextMapper;
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import org.apache.commons.io.IOUtils;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.spark.SparkConf;
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import org.apache.spark.sql.SparkSession;
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public class SparkXmlRecordBuilderJob {
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public static void main(String[] args) throws Exception {
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(IOUtils.toString(SparkXmlRecordBuilderJob.class.getResourceAsStream("/eu/dnetlib/dhp/graph/input_params_build_adjacency_lists.json")));
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parser.parseArgument(args);
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final String master = parser.get("master");
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final SparkConf conf = new SparkConf()
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.set("spark.serializer", "org.apache.spark.serializer.KryoSerializer");
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try(SparkSession spark = getSession(conf, master)) {
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final String inputPath = parser.get("sourcePath");
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final String outputPath = parser.get("outputPath");
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final String isLookupUrl = parser.get("isLookupUrl");
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final FileSystem fs = FileSystem.get(spark.sparkContext().hadoopConfiguration());
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if (fs.exists(new Path(outputPath))) {
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fs.delete(new Path(outputPath), true);
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fs.mkdirs(new Path(outputPath));
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}
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new GraphJoiner(spark, ContextMapper.fromIS(isLookupUrl), inputPath, outputPath)
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.adjacencyLists();
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}
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}
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private static SparkSession getSession(SparkConf conf, String master) {
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return SparkSession
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.builder()
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.config(conf)
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.appName(SparkXmlRecordBuilderJob.class.getSimpleName())
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.master(master)
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.getOrCreate();
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}
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}
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