private static RasterDataNode[] getReferencedNodes(final RasterDataNode node) {
final Product product = node.getProduct();
if (product != null) {
final List<String> expressions = new ArrayList<String>(10);
if (node.getValidPixelExpression() != null) {
expressions.add(node.getValidPixelExpression());
}
final ProductNodeGroup<Mask> overlayMaskGroup = node.getOverlayMaskGroup();
if (overlayMaskGroup.getNodeCount() > 0) {
final Mask[] overlayMasks =
overlayMaskGroup.toArray(new Mask[overlayMaskGroup.getNodeCount()]);
for (final Mask overlayMask : overlayMasks) {
final String expression;
if (overlayMask.getImageType() == Mask.BandMathsType.INSTANCE) {
expression = Mask.BandMathsType.getExpression(overlayMask);
} else if (overlayMask.getImageType() == Mask.RangeType.INSTANCE) {
expression = Mask.RangeType.getExpression(overlayMask);
} else {
expression = null;
}
if (expression != null) {
expressions.add(expression);
}
}
}
if (node instanceof VirtualBand) {
final VirtualBand virtualBand = (VirtualBand) node;
expressions.add(virtualBand.getExpression());
}
final ArrayList<Term> termList = new ArrayList<Term>(10);
for (final String expression : expressions) {
try {
final Term term = product.parseExpression(expression);
if (term != null) {
termList.add(term);
}
} catch (ParseException e) {
// @todo se handle parse exception
Debug.trace(e);
}
}
final Term[] terms = termList.toArray(new Term[termList.size()]);
final RasterDataSymbol[] refRasterDataSymbols = BandArithmetic.getRefRasterDataSymbols(terms);
return BandArithmetic.getRefRasters(refRasterDataSymbols);
}
return new RasterDataNode[0];
}
protected void addBandsToProduct(Product product) {
Debug.assertNotNull(getSourceProduct());
Debug.assertNotNull(product);
for (int i = 0; i < getSourceProduct().getNumBands(); i++) {
Band sourceBand = getSourceProduct().getBandAt(i);
String bandName = sourceBand.getName();
if (isNodeAccepted(bandName)) {
Band destBand;
boolean treatVirtualBandsAsRealBands = false;
if (getSubsetDef() != null && getSubsetDef().getTreatVirtualBandsAsRealBands()) {
treatVirtualBandsAsRealBands = true;
}
// @todo 1 se/se - extract copy of a band or virtual band to create deep clone of band and
// virtual band
if (!treatVirtualBandsAsRealBands && sourceBand instanceof VirtualBand) {
VirtualBand virtualSource = (VirtualBand) sourceBand;
destBand =
new VirtualBand(
bandName,
sourceBand.getDataType(),
getSceneRasterWidth(),
getSceneRasterHeight(),
virtualSource.getExpression());
} else {
destBand =
new Band(
bandName,
sourceBand.getDataType(),
getSceneRasterWidth(),
getSceneRasterHeight());
}
if (sourceBand.getUnit() != null) {
destBand.setUnit(sourceBand.getUnit());
}
if (sourceBand.getDescription() != null) {
destBand.setDescription(sourceBand.getDescription());
}
destBand.setScalingFactor(sourceBand.getScalingFactor());
destBand.setScalingOffset(sourceBand.getScalingOffset());
destBand.setLog10Scaled(sourceBand.isLog10Scaled());
destBand.setSpectralBandIndex(sourceBand.getSpectralBandIndex());
destBand.setSpectralWavelength(sourceBand.getSpectralWavelength());
destBand.setSpectralBandwidth(sourceBand.getSpectralBandwidth());
destBand.setSolarFlux(sourceBand.getSolarFlux());
if (sourceBand.isNoDataValueSet()) {
destBand.setNoDataValue(sourceBand.getNoDataValue());
}
destBand.setNoDataValueUsed(sourceBand.isNoDataValueUsed());
destBand.setValidPixelExpression(sourceBand.getValidPixelExpression());
FlagCoding sourceFlagCoding = sourceBand.getFlagCoding();
IndexCoding sourceIndexCoding = sourceBand.getIndexCoding();
if (sourceFlagCoding != null) {
String flagCodingName = sourceFlagCoding.getName();
FlagCoding destFlagCoding = product.getFlagCodingGroup().get(flagCodingName);
Debug.assertNotNull(
destFlagCoding); // should not happen because flag codings should be already in
// product
destBand.setSampleCoding(destFlagCoding);
} else if (sourceIndexCoding != null) {
String indexCodingName = sourceIndexCoding.getName();
IndexCoding destIndexCoding = product.getIndexCodingGroup().get(indexCodingName);
Debug.assertNotNull(
destIndexCoding); // should not happen because index codings should be already in
// product
destBand.setSampleCoding(destIndexCoding);
} else {
destBand.setSampleCoding(null);
}
if (isFullScene(getSubsetDef()) && sourceBand.isStxSet()) {
copyStx(sourceBand, destBand);
}
product.addBand(destBand);
bandMap.put(destBand, sourceBand);
}
}
for (final Map.Entry<Band, RasterDataNode> entry : bandMap.entrySet()) {
copyImageInfo(entry.getValue(), entry.getKey());
}
}