code: public void read(ProgressVisitor progress, String tableReference) throws SQLException, IOException {
          if (FileUtil.isFileImportable(fileName, "geojson")) {
              this.isH2 = JDBCUtilities.isH2DataBase(connection.getMetaData());
              this.tableLocation = TableLocation.parse(tableReference, isH2);
              if (fileName.length() > 0) {
                  parseGeoJson(progress);
              } else {
                  JDBCUtilities.createEmptyTable(connection, tableLocation.toString());
              }
          }
      }
docs: Read the GeoJSON file.
  
  @param progress
  @param tableReference
  @throws java.sql.SQLException
  @throws java.io.IOException