77 lines
2.3 KiB
Java
77 lines
2.3 KiB
Java
|
|
package eu.dnetlib.dhp.oa.graph.hostedbymap;
|
|
|
|
import java.io.*;
|
|
import java.nio.charset.Charset;
|
|
import java.nio.charset.StandardCharsets;
|
|
import java.util.Objects;
|
|
import java.util.Optional;
|
|
|
|
import org.apache.commons.io.IOUtils;
|
|
import org.apache.hadoop.conf.Configuration;
|
|
import org.apache.hadoop.fs.FileSystem;
|
|
import org.apache.hadoop.fs.Path;
|
|
import org.slf4j.Logger;
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
import eu.dnetlib.dhp.application.ArgumentApplicationParser;
|
|
import eu.dnetlib.dhp.common.collection.CollectorException;
|
|
import eu.dnetlib.dhp.common.collection.GetCSV;
|
|
import eu.dnetlib.dhp.common.collection.HttpConnector2;
|
|
|
|
public class DownloadCSV {
|
|
|
|
private static final Logger log = LoggerFactory.getLogger(DownloadCSV.class);
|
|
|
|
public static final char DEFAULT_DELIMITER = ',';
|
|
|
|
public static void main(final String[] args) throws Exception {
|
|
final ArgumentApplicationParser parser = new ArgumentApplicationParser(
|
|
IOUtils
|
|
.toString(
|
|
Objects
|
|
.requireNonNull(
|
|
DownloadCSV.class
|
|
.getResourceAsStream(
|
|
"/eu/dnetlib/dhp/oa/graph/hostedbymap/download_csv_parameters.json"))));
|
|
|
|
parser.parseArgument(args);
|
|
|
|
final String fileURL = parser.get("fileURL");
|
|
log.info("fileURL {}", fileURL);
|
|
|
|
final String outputFile = parser.get("outputFile");
|
|
log.info("outputFile {}", outputFile);
|
|
|
|
final String hdfsNameNode = parser.get("hdfsNameNode");
|
|
log.info("hdfsNameNode {}", hdfsNameNode);
|
|
|
|
final String classForName = parser.get("classForName");
|
|
log.info("classForName {}", classForName);
|
|
|
|
final char delimiter = Optional
|
|
.ofNullable(parser.get("delimiter"))
|
|
.map(s -> s.charAt(0))
|
|
.orElse(DEFAULT_DELIMITER);
|
|
log.info("delimiter {}", delimiter);
|
|
|
|
Configuration conf = new Configuration();
|
|
conf.set("fs.defaultFS", hdfsNameNode);
|
|
|
|
FileSystem fileSystem = FileSystem.get(conf);
|
|
|
|
new DownloadCSV().doDownload(fileURL, outputFile, classForName, delimiter, fileSystem);
|
|
|
|
}
|
|
|
|
protected void doDownload(String fileURL, String outputFile, String classForName,
|
|
char delimiter, FileSystem fs)
|
|
throws IOException, ClassNotFoundException, CollectorException {
|
|
|
|
try (InputStreamReader reader = new InputStreamReader(new HttpConnector2().getInputSourceAsStream(fileURL))) {
|
|
GetCSV.getCsv(fs, reader, outputFile, classForName, delimiter);
|
|
}
|
|
}
|
|
|
|
}
|