Java Code Examples for ucar.ma2.DataType#withSignedness()

private DataType getAttributeDataType(Attribute attribute) {
  DataType dataType = attribute.getDataType();
  if (signedness == Signedness.UNSIGNED) {
    // If variable is unsigned, make its integral attributes unsigned too.
    dataType = dataType.withSignedness(signedness);
  }
  return dataType;
}
 

/**
 * Parse the values element
 *
 * @param s JDOM element to parse
 * @return Array with parsed values
 * @throws IllegalArgumentException if string values not parsable to specified data type
 */
public static ucar.ma2.Array readAttributeValues(Element s) throws IllegalArgumentException {
  String valString = s.getAttributeValue("value");

  // can also be element text
  if (valString == null) {
    valString = s.getTextNormalize();
  }

  // no value specified hmm technically this is not illegal !!
  if (valString == null)
    throw new IllegalArgumentException("No value specified");

  String type = s.getAttributeValue("type");
  DataType dtype = (type == null) ? DataType.STRING : DataType.getType(type);
  if (dtype == DataType.CHAR)
    dtype = DataType.STRING;

  // backwards compatibility with deprecated isUnsigned attribute
  String unS = s.getAttributeValue("isUnsigned");
  boolean isUnsignedSet = "true".equalsIgnoreCase(unS);
  if (isUnsignedSet && dtype.isIntegral() && !dtype.isUnsigned()) {
    dtype = dtype.withSignedness(DataType.Signedness.UNSIGNED);
  }

  String sep = s.getAttributeValue("separator");
  if ((sep == null) && (dtype == DataType.STRING)) {
    List<String> list = new ArrayList<>();
    list.add(valString);
    return Array.makeArray(dtype, list);
  }

  if (sep == null)
    sep = " "; // default whitespace separated

  List<String> stringValues = new ArrayList<>();
  StringTokenizer tokn = new StringTokenizer(valString, sep);
  while (tokn.hasMoreTokens())
    stringValues.add(tokn.nextToken());

  return Array.makeArray(dtype, stringValues);
}
 

/**
 * Parse the values element
 *
 * @param s JDOM element to parse
 * @return Array with parsed values
 * @throws IllegalArgumentException if string values not parsable to specified data type
 */
private static ucar.ma2.Array readAttributeValues(Element s) throws IllegalArgumentException {
  String valString = s.getAttributeValue("value");

  // can also be element text
  if (valString == null) {
    valString = s.getTextNormalize();
  }

  // no value specified hmm technically this is not illegal !!
  if (valString == null) {
    throw new IllegalArgumentException("No value specified");
  }

  String type = s.getAttributeValue("type");
  DataType dtype = (type == null) ? DataType.STRING : DataType.getType(type);
  if (dtype == DataType.CHAR) {
    dtype = DataType.STRING;
  }

  // backwards compatibility with deprecated isUnsigned attribute
  String unS = s.getAttributeValue("isUnsigned");
  boolean isUnsignedSet = "true".equalsIgnoreCase(unS);
  if (isUnsignedSet && dtype.isIntegral() && !dtype.isUnsigned()) {
    dtype = dtype.withSignedness(DataType.Signedness.UNSIGNED);
  }

  String sep = s.getAttributeValue("separator");
  if ((sep == null) && (dtype == DataType.STRING)) {
    List<String> list = new ArrayList<>();
    list.add(valString);
    return Array.makeArray(dtype, list);
  }

  if (sep == null) {
    sep = " "; // default whitespace separated
  }

  List<String> stringValues = new ArrayList<>();
  StringTokenizer tokn = new StringTokenizer(valString, sep);
  while (tokn.hasMoreTokens()) {
    stringValues.add(tokn.nextToken());
  }

  return Array.makeArray(dtype, stringValues);
}
 

private Optional<Builder> readVariableExisting(Group.Builder groupBuilder,
    @Nullable StructureDS.Builder<?> parentStructure, DataType dtype, Variable refv, Element varElem) {
  String name = varElem.getAttributeValue("name");
  String typedefS = dtype.isEnum() ? varElem.getAttributeValue("typedef") : null;
  String nameInFile = Optional.ofNullable(varElem.getAttributeValue("orgName")).orElse(name);

  VariableDS.Builder vb;
  if (this.explicit) { // all metadata is in the ncml, do not copy
    vb = VariableDS.builder().setOriginalVariable(refv);
  } else { // modify existing
    if (parentStructure != null) {
      vb = (VariableDS.Builder<?>) parentStructure.findMemberVariable(nameInFile)
          .orElseThrow(() -> new IllegalStateException("Cant find variable " + nameInFile));
    } else {
      vb = (VariableDS.Builder) groupBuilder.findVariableLocal(nameInFile)
          .orElseThrow(() -> new IllegalStateException("Cant find variable " + nameInFile));
    }
  }
  vb.setName(name).setDataType(dtype);
  if (typedefS != null) {
    vb.setEnumTypeName(typedefS);
  }

  String dimNames = varElem.getAttributeValue("shape"); // list of dimension names
  if (dimNames != null) {
    List<Dimension> varDims = groupBuilder.makeDimensionsList(dimNames);
    vb.setDimensions(varDims); // TODO check conformable
  }

  java.util.List<Element> attList = varElem.getChildren("attribute", ncNS);
  for (Element attElem : attList) {
    readAtt(vb.getAttributeContainer(), refv, attElem);
  }

  // deal with legacy use of attribute with Unsigned = true
  Attribute att = vb.getAttributeContainer().findAttribute(CDM.UNSIGNED);
  boolean isUnsignedSet = att != null && att.getStringValue().equalsIgnoreCase("true");
  if (isUnsignedSet) {
    dtype = dtype.withSignedness(DataType.Signedness.UNSIGNED);
    vb.setDataType(dtype);
  }

  // process remove command
  java.util.List<Element> removeList = varElem.getChildren("remove", ncNS);
  for (Element remElem : removeList) {
    cmdRemove(vb, remElem.getAttributeValue("type"), remElem.getAttributeValue("name"));
  }

  Element valueElem = varElem.getChild("values", ncNS);
  if (valueElem != null) {
    readValues(vb, dtype, varElem, valueElem);
  }
  /*
   * else {
   * // see if we need to munge existing data. use case : aggregation
   * if (v.hasCachedData()) {
   * Array data;
   * try {
   * data = v.read();
   * } catch (IOException e) {
   * throw new IllegalStateException(e.getMessage());
   * }
   * if (data.getClass() != v.getDataType().getPrimitiveClassType()) {
   * Array newData = Array.factory(v.getDataType(), v.getShape());
   * MAMath.copy(newData, data);
   * v.setCachedData(newData, false);
   * }
   * }
   * }
   */

  // look for logical views
  // processLogicalViews(v, refGroup, varElem);
  // only return if it needs to be added
  return (this.explicit) ? Optional.of(vb) : Optional.empty();
}