75 lines
2.2 KiB
Java
75 lines
2.2 KiB
Java
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package eu.dnetlib.dhp.oa.graph.dump;
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import java.io.IOException;
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import java.io.Serializable;
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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.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.LocatedFileStatus;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.RemoteIterator;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import eu.dnetlib.dhp.application.ArgumentApplicationParser;
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import eu.dnetlib.dhp.common.MakeTarArchive;
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public class MakeTar implements Serializable {
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private static final Logger log = LoggerFactory.getLogger(MakeTar.class);
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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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MakeTar.class
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.getResourceAsStream(
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"/eu/dnetlib/dhp/oa/graph/dump/input_maketar_parameters.json"));
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final ArgumentApplicationParser parser = new ArgumentApplicationParser(jsonConfiguration);
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parser.parseArgument(args);
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final String outputPath = parser.get("hdfsPath");
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log.info("hdfsPath: {}", outputPath);
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final String hdfsNameNode = parser.get("nameNode");
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log.info("nameNode: {}", hdfsNameNode);
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final String inputPath = parser.get("sourcePath");
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log.info("input path : {}", inputPath);
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final int gBperSplit = Optional
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.ofNullable(parser.get("splitSize"))
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.map(Integer::valueOf)
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.orElse(10);
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Configuration conf = new Configuration();
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conf.set("fs.defaultFS", hdfsNameNode);
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FileSystem fileSystem = FileSystem.get(conf);
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makeTArArchive(fileSystem, inputPath, outputPath, gBperSplit);
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}
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public static void makeTArArchive(FileSystem fileSystem, String inputPath, String outputPath, int gBperSplit)
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throws IOException {
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RemoteIterator<LocatedFileStatus> dirIterator = fileSystem.listLocatedStatus(new Path(inputPath));
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while (dirIterator.hasNext()) {
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LocatedFileStatus fileStatus = dirIterator.next();
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Path p = fileStatus.getPath();
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String pathString = p.toString();
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String entity = pathString.substring(pathString.lastIndexOf("/") + 1);
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MakeTarArchive.tarMaxSize(fileSystem, pathString, outputPath + "/" + entity, entity, gBperSplit);
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}
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}
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}
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