Exemplo n.º 1
0
  @Override
  public DatasetMetadata queryMetadata(String uri, String referential) throws IOException {

    DatasetMetadata md = new DatasetMetadata();

    // Coordinate system
    Dataset dataset = findDataset(uri, referential);
    if (dataset == null) {
      throw new IOException(String.format("Could not find dataset %s", uri));
    }
    log.trace("Querying spatial axes of {}", dataset);
    List<TimeSlice> tss = datasetDao.getTimeSlices(dataset.getId());

    GridProjected grid = queryGrid(dataset, tss);
    TimeAxis timeAxis = queryTimeAxis(dataset, tss);
    md.setCsys(new QueryCoordinateSystem(grid, timeAxis));

    // Variable names
    log.trace("Querying variable names of {}", dataset);
    List<String> bandNames = new ArrayList<>();
    for (Band b : datasetDao.getBands(dataset.getId())) {
      bandNames.add(b.getName());
    }
    // In the current RSA, all datasets have coordinate axes (1D variables)
    // x, y and time
    bandNames.add("time");
    bandNames.add("y");
    bandNames.add("x");
    md.setVariables(bandNames);

    return md;
  }
Exemplo n.º 2
0
 ReadWriteLock getLock(Dataset dataset) {
   List<TimeSlice> tss = datasetDao.getTimeSlices(dataset.getId());
   // Get locks for all timeslices
   TimeSliceDbReadWriteLock lock = new TimeSliceDbReadWriteLock(TaskType.Query.toString());
   for (TimeSlice ts : tss) lock.getTimeSliceIds().add(ts.getId());
   return lock;
 }