private PointFeature nextFilteredDataPoint() throws IOException {
if (orgIter == null) return null;
if (!orgIter.hasNext()) return null;
PointFeature pdata = orgIter.next();
while (!filter(pdata)) {
if (!orgIter.hasNext()) return null;
pdata = orgIter.next();
}
return pdata;
}
public boolean hasNext() throws IOException {
if (pfIter == null) {
pfIter = getNextIterator();
if (pfIter == null) {
finish();
return false;
}
}
if (!pfIter.hasNext()) {
pfIter.finish();
currentDataset.close();
if (CompositeDatasetFactory.debug)
System.out.printf(
"CompositeStationFeatureIterator close dataset: %s%n",
currentDataset.getLocation());
pfIter = getNextIterator();
return hasNext();
}
return true;
}
public void finish() {
if (finished) return;
if (pfIter != null) pfIter.finish();
if (currentDataset != null)
try {
currentDataset.close();
if (CompositeDatasetFactory.debug)
System.out.printf(
"CompositeStationFeatureIterator close dataset: %s%n",
currentDataset.getLocation());
} catch (IOException e) {
throw new RuntimeException(e);
}
finishCalcBounds();
finished = true;
// if (CompositeStationFeature.this.npts < 0) // LOOK needed ?
// CompositeStationFeature.this.npts = getCount();
}
public void finish() {
if (finished) return;
orgIter.finish();
finishCalcBounds();
finished = true;
}
public void setBufferSize(int bytes) {
orgIter.setBufferSize(bytes);
}
public PointFeature next() throws IOException {
npts++;
return pfIter.next();
}