protected Product processProduct(Product existingProduct) throws IOException {
initInput();
Document dom = readDom();
this.product =
existingProduct == null ? DimapProductHelpers.createProduct(dom) : existingProduct;
this.product.setProductReader(this);
if (existingProduct == null) {
readTiePointGrids(dom);
}
bindBandsToFiles(dom);
if (existingProduct == null) {
readVectorData(ImageManager.DEFAULT_IMAGE_CRS, true);
// read GCPs and pins from DOM (old-style)
DimapProductHelpers.addGcps(dom, this.product);
DimapProductHelpers.addPins(dom, this.product);
initGeoCodings(dom);
readVectorData(ImageManager.getModelCrs(product.getGeoCoding()), false);
DimapProductHelpers.addMaskUsages(dom, this.product);
}
this.product.setProductReader(this);
this.product.setFileLocation(inputFile);
this.product.setModified(false);
return this.product;
}
private void addBandsToProduct(TiffFileInfo tiffInfo, Product product) throws IOException {
final ImageReadParam readParam = imageReader.getDefaultReadParam();
TIFFRenderedImage baseImage =
(TIFFRenderedImage) imageReader.readAsRenderedImage(FIRST_IMAGE, readParam);
SampleModel sampleModel = baseImage.getSampleModel();
final int numBands = sampleModel.getNumBands();
final int productDataType = ImageManager.getProductDataType(sampleModel.getDataType());
bandMap = new HashMap<>(numBands);
for (int i = 0; i < numBands; i++) {
final String bandName = String.format("band_%d", i + 1);
final Band band = product.addBand(bandName, productDataType);
if (tiffInfo.containsField(BaselineTIFFTagSet.TAG_COLOR_MAP)
&& baseImage.getColorModel() instanceof IndexColorModel) {
band.setImageInfo(createIndexedImageInfo(product, baseImage, band));
}
bandMap.put(band, i);
}
}