Exemplo n.º 1
0
  public static ThreddsMetadata.Variables extractVariables(
      InvDatasetImpl threddsDataset, GridDataset gridDataset) {

    thredds.catalog.DataFormatType fileFormat = threddsDataset.getDataFormatType();
    if ((fileFormat != null)
        && (fileFormat.equals(DataFormatType.GRIB1) || fileFormat.equals(DataFormatType.GRIB2))) {
      boolean isGrib1 = fileFormat.equals(DataFormatType.GRIB1);
      ThreddsMetadata.Variables vars = new ThreddsMetadata.Variables(fileFormat.toString());
      for (GridDatatype grid : gridDataset.getGrids()) {
        ThreddsMetadata.Variable v = new ThreddsMetadata.Variable();
        v.setName(grid.getName());
        v.setDescription(grid.getDescription());
        v.setUnits(grid.getUnitsString());

        // ucar.nc2.Attribute att = grid.findAttributeIgnoreCase("GRIB_param_number");
        // String paramNumber = (att != null) ? att.getNumericValue().toString() : null;
        if (isGrib1) {
          v.setVocabularyName(grid.findAttValueIgnoreCase("GRIB_param_name", "ERROR"));
          v.setVocabularyId(grid.findAttributeIgnoreCase("GRIB_param_id"));
        } else {
          String paramDisc = grid.findAttValueIgnoreCase("GRIB_param_discipline", "");
          String paramCategory = grid.findAttValueIgnoreCase("GRIB_param_category", "");
          String paramName = grid.findAttValueIgnoreCase("GRIB_param_name", "");
          v.setVocabularyName(paramDisc + " / " + paramCategory + " / " + paramName);
          v.setVocabularyId(grid.findAttributeIgnoreCase("GRIB_param_id"));
        }
        vars.addVariable(v);
      }
      vars.sort();
      return vars;

    } else { // GRID but not GRIB
      ThreddsMetadata.Variables vars = new ThreddsMetadata.Variables("CF-1.0");
      for (GridDatatype grid : gridDataset.getGrids()) {
        ThreddsMetadata.Variable v = new ThreddsMetadata.Variable();
        vars.addVariable(v);

        v.setName(grid.getName());
        v.setDescription(grid.getDescription());
        v.setUnits(grid.getUnitsString());

        ucar.nc2.Attribute att = grid.findAttributeIgnoreCase("standard_name");
        v.setVocabularyName((att != null) ? att.getStringValue() : "N/A");
      }
      vars.sort();
      return vars;
    }
  }
Exemplo n.º 2
0
  /**
   * Extract a list of data variables (and their canonical names if possible) from the dataset.
   *
   * @param threddsDataset open this dataset
   * @return ThreddsMetadata.Variables, or null if unable.
   * @throws IOException on read error
   */
  public static ThreddsMetadata.Variables extractVariables(InvDatasetImpl threddsDataset)
      throws IOException {
    ThreddsDataFactory.Result result = null;

    try {
      result = new ThreddsDataFactory().openFeatureDataset(threddsDataset, null);
      if (result.fatalError) {
        System.out.println(" openDatatype errs=" + result.errLog);
        return null;
      }

      if (result.featureType == FeatureType.GRID) {
        // System.out.println(" extractVariables GRID=" + result.location);
        GridDataset gridDataset = (GridDataset) result.featureDataset;
        return extractVariables(threddsDataset, gridDataset);

      } else if ((result.featureType == FeatureType.STATION)
          || (result.featureType == FeatureType.POINT)) {
        PointObsDataset pobsDataset = (PointObsDataset) result.featureDataset;
        ThreddsMetadata.Variables vars = new ThreddsMetadata.Variables("CF-1.0");
        for (VariableSimpleIF vs : pobsDataset.getDataVariables()) {
          ThreddsMetadata.Variable v = new ThreddsMetadata.Variable();
          vars.addVariable(v);

          v.setName(vs.getName());
          v.setDescription(vs.getDescription());
          v.setUnits(vs.getUnitsString());

          ucar.nc2.Attribute att = vs.findAttributeIgnoreCase("standard_name");
          v.setVocabularyName((att != null) ? att.getStringValue() : "N/A");
        }
        vars.sort();
        return vars;
      }

    } finally {
      try {
        if ((result != null) && (result.featureDataset != null)) result.featureDataset.close();
      } catch (IOException ioe) {
        logger.error("Closing dataset " + result.featureDataset, ioe);
      }
    }

    return null;
  }
Exemplo n.º 3
0
  public static ThreddsMetadata.Variables extractVariables(FeatureDatasetPoint fd) {
    ThreddsMetadata.Variables vars = new ThreddsMetadata.Variables("CF-1.5");
    List<VariableSimpleIF> dataVars = fd.getDataVariables();
    if (dataVars == null) return vars;

    for (VariableSimpleIF v : dataVars) {
      ThreddsMetadata.Variable tv = new ThreddsMetadata.Variable();
      vars.addVariable(tv);

      tv.setName(v.getName());
      tv.setDescription(v.getDescription());
      tv.setUnits(v.getUnitsString());

      ucar.nc2.Attribute att = v.findAttributeIgnoreCase("standard_name");
      tv.setVocabularyName((att != null) ? att.getStringValue() : "N/A");
    }
    vars.sort();
    return vars;
  }