/**
* @param info
* @param files
* @param rasters
* @param options
*/
public DiskBasedTileContainer(
QTreeInfo info, List<File> files, List<AbstractRaster> rasters, RasterIOOptions options) {
qtree = new QTree<File>(createEnvelope(info.envelope), info.numberOfObjects);
envelope = info.envelope;
AbstractRaster raster = rasters.iterator().next();
rasterDataInfo = raster.getRasterDataInfo();
rasterGeoReference = info.rasterGeoReference;
resolutionInfo = raster.getResolutionInfo();
this.options = options;
Iterator<File> iter = files.iterator();
for (AbstractRaster r : rasters) {
File f = iter.next();
qtree.insert(createEnvelope(r.getEnvelope()), f);
cache.put(f, new SoftReference<AbstractRaster>(r));
}
initialized = true;
}
public List<AbstractRaster> getTiles(Envelope env) {
List<File> files = qtree.query(createEnvelope(env));
List<AbstractRaster> result = new ArrayList<AbstractRaster>(files.size());
for (File f : files) {
SoftReference<AbstractRaster> ref = cache.get(f);
AbstractRaster raster = ref == null ? null : ref.get();
if (raster != null) {
result.add(raster);
} else {
try {
result.add(raster = loadRasterFromFile(f, options));
cache.put(f, new SoftReference<AbstractRaster>(raster));
} catch (IOException e) {
LOG.debug("Raster file '{}' could not be loaded: '{}'.", f, e.getLocalizedMessage());
LOG.trace("Stack trace:", e);
}
}
}
return result;
}