ucar.ma2.Array#hasNext

Source File: TestSequence.java From netcdf-java with BSD 3-Clause "New" or "Revised" License

6 votes

public void testSequence() {
  String url = "http://tsds.net/tsds/test/Scalar";
  try {
    NetcdfDataset ds = NetcdfDatasets.openDataset(url);
    System.out.println(ds);
    Structure struct = (Structure) ds.findVariable("TimeSeries");
    Variable var = struct.findVariable("time");
    Array arr = var.read();
    int n = (int) arr.getSize();
    int i;
    for (i = 0; arr.hasNext() && i < n; i++)
      System.out.println(arr.nextDouble());
    if (i != n) {
      System.err.println("short sequence");
      System.exit(1);
    }
  } catch (Exception e) {
    e.printStackTrace();
  }
}

Source File: H5headerNew.java From netcdf-java with BSD 3-Clause "New" or "Revised" License

6 votes

protected Array convertEnums(Map<Integer, String> map, DataType dataType, Array values) {
  Array result = Array.factory(DataType.STRING, values.getShape());
  IndexIterator ii = result.getIndexIterator();
  values.resetLocalIterator();
  while (values.hasNext()) {
    int ival;
    if (dataType == DataType.ENUM1)
      ival = (int) DataType.unsignedByteToShort(values.nextByte());
    else if (dataType == DataType.ENUM2)
      ival = DataType.unsignedShortToInt(values.nextShort());
    else
      ival = values.nextInt();
    String sval = map.get(ival);
    if (sval == null)
      sval = "Unknown enum value=" + ival;
    ii.setObjectNext(sval);
  }
  return result;
}

Source File: Table.java From netcdf-java with BSD 3-Clause "New" or "Revised" License

6 votes

private void init() {
  if (startVarName == null) { // read numRecords when startVar is not known LOOK this should be deffered
    try {
      Variable v = ds.findVariable(numRecordsVarName);
      Array numRecords = v.read();
      int n = (int) numRecords.getSize();

      // construct the start variable
      this.numRecords = new int[n];
      this.startIndex = new int[n];
      int i = 0;
      int count = 0;
      while (numRecords.hasNext()) {
        this.startIndex[i] = count;
        this.numRecords[i] = numRecords.nextInt();
        count += this.numRecords[i];
        i++;
      }
      isInit = true;
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
}

Source File: Table.java From netcdf-java with BSD 3-Clause "New" or "Revised" License

6 votes

TableParentIndex(NetcdfDataset ds, TableConfig config) {
  super(ds, config);
  this.parentIndexName = config.parentIndex;

  // construct the map
  try {
    Variable rpIndex = ds.findVariable(config.parentIndex);
    Array index = rpIndex.read();

    int childIndex = 0;
    this.indexMap = new HashMap<>((int) (2 * index.getSize()));
    while (index.hasNext()) {
      int parent = index.nextInt();
      List<Integer> list = indexMap.computeIfAbsent(parent, k -> new ArrayList<>());
      list.add(childIndex);
      childIndex++;
    }
  } catch (IOException e) {
    throw new RuntimeException(e);
  }

  addNonDataVariable(config.parentIndex);
}