2022-11-28 09:53:23 +01:00
|
|
|
|
|
|
|
package eu.dnetlib.dhp.common.action;
|
|
|
|
|
2023-02-09 12:32:28 +01:00
|
|
|
import static eu.dnetlib.dhp.schema.oaf.utils.IdentifierFactory.*;
|
|
|
|
|
2022-11-28 09:53:23 +01:00
|
|
|
import java.io.BufferedWriter;
|
|
|
|
import java.io.IOException;
|
|
|
|
import java.io.OutputStreamWriter;
|
|
|
|
import java.nio.charset.StandardCharsets;
|
|
|
|
import java.sql.ResultSet;
|
|
|
|
import java.sql.SQLException;
|
|
|
|
|
|
|
|
import org.apache.hadoop.conf.Configuration;
|
|
|
|
import org.apache.hadoop.fs.FSDataOutputStream;
|
|
|
|
import org.apache.hadoop.fs.FileSystem;
|
|
|
|
import org.apache.hadoop.fs.Path;
|
|
|
|
import org.slf4j.Logger;
|
|
|
|
import org.slf4j.LoggerFactory;
|
|
|
|
|
|
|
|
import com.fasterxml.jackson.databind.ObjectMapper;
|
|
|
|
|
|
|
|
import eu.dnetlib.dhp.common.DbClient;
|
|
|
|
import eu.dnetlib.dhp.common.action.model.MasterDuplicate;
|
|
|
|
|
|
|
|
public class ReadDatasourceMasterDuplicateFromDB {
|
|
|
|
|
|
|
|
private static final Logger log = LoggerFactory.getLogger(ReadDatasourceMasterDuplicateFromDB.class);
|
|
|
|
|
|
|
|
private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
|
|
|
|
|
2022-11-28 10:18:43 +01:00
|
|
|
private static final String QUERY = "SELECT distinct dd.id as masterId, d.officialname as masterName, dd.duplicate as duplicateId "
|
|
|
|
+
|
|
|
|
"FROM dsm_dedup_services dd join dsm_services d on (dd.id = d.id);";
|
2022-11-28 09:53:23 +01:00
|
|
|
|
|
|
|
public static int execute(String dbUrl, String dbUser, String dbPassword, String hdfsPath, String hdfsNameNode)
|
|
|
|
throws IOException {
|
|
|
|
int count = 0;
|
|
|
|
try (DbClient dbClient = new DbClient(dbUrl, dbUser, dbPassword)) {
|
|
|
|
Configuration conf = new Configuration();
|
|
|
|
conf.set("fs.defaultFS", hdfsNameNode);
|
|
|
|
FileSystem fileSystem = FileSystem.get(conf);
|
|
|
|
FSDataOutputStream fos = fileSystem.create(new Path(hdfsPath));
|
|
|
|
|
|
|
|
log.info("running query: {}", QUERY);
|
|
|
|
log.info("storing results in: {}", hdfsPath);
|
|
|
|
|
|
|
|
try (BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(fos, StandardCharsets.UTF_8))) {
|
|
|
|
dbClient.processResults(QUERY, rs -> writeMap(datasourceMasterMap(rs), writer));
|
|
|
|
count++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
private static MasterDuplicate datasourceMasterMap(ResultSet rs) {
|
|
|
|
try {
|
2022-11-28 10:18:43 +01:00
|
|
|
final MasterDuplicate md = new MasterDuplicate();
|
|
|
|
|
|
|
|
final String duplicateId = rs.getString("duplicateId");
|
|
|
|
final String masterId = rs.getString("masterId");
|
|
|
|
final String masterName = rs.getString("masterName");
|
|
|
|
|
2023-02-09 12:32:28 +01:00
|
|
|
md.setDuplicateId(createOpenaireId(10, duplicateId, true));
|
|
|
|
md.setMasterId(createOpenaireId(10, masterId, true));
|
2022-11-28 10:18:43 +01:00
|
|
|
md.setMasterName(masterName);
|
2022-11-28 09:53:23 +01:00
|
|
|
|
|
|
|
return md;
|
|
|
|
} catch (final SQLException e) {
|
|
|
|
throw new RuntimeException(e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
private static void writeMap(final MasterDuplicate dm, final BufferedWriter writer) {
|
|
|
|
try {
|
|
|
|
writer.write(OBJECT_MAPPER.writeValueAsString(dm));
|
|
|
|
writer.newLine();
|
|
|
|
} catch (final IOException e) {
|
|
|
|
throw new RuntimeException(e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|