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 initGeoCodings(Document dom) {
final GeoCoding[] geoCodings = DimapProductHelpers.createGeoCoding(dom, product);
if (geoCodings != null) {
if (geoCodings.length == 1) {
product.setGeoCoding(geoCodings[0]);
} else if (geoCodings.length == product.getNumBands()) {
for (int i = 0; i < geoCodings.length; i++) {
final Band band = product.getBandAt(i);
if (product.getSceneRasterWidth() == band.getRasterWidth()
&& product.getSceneRasterHeight() == band.getRasterHeight()) {
product.setGeoCoding(geoCodings[i]);
}
band.setGeoCoding(geoCodings[i]);
}
}
} else {
final Band lonBand = product.getBand("longitude");
final Band latBand = product.getBand("latitude");
if (latBand != null && lonBand != null) {
final GeoCoding geoCoding =
GeoCodingFactory.createPixelGeoCoding(latBand, lonBand, null, 6);
product.setGeoCoding(geoCoding);
}
}
}
private void readTiePointGrids(Document jDomDocument) throws IOException {
final String[] tiePointGridNames = product.getTiePointGridNames();
for (String tiePointGridName : tiePointGridNames) {
final TiePointGrid tiePointGrid = product.getTiePointGrid(tiePointGridName);
String dataFile =
DimapProductHelpers.getTiePointDataFile(jDomDocument, tiePointGrid.getName());
final int dataType =
DimapProductHelpers.getTiePointDataType(
jDomDocument.getRootElement(), tiePointGrid.getName());
dataFile = FileUtils.exchangeExtension(dataFile, DimapProductConstants.IMAGE_FILE_EXTENSION);
FileImageInputStream inputStream = null;
try {
inputStream = new FileImageInputStream(new File(inputDir, dataFile));
final float[] data = ((float[]) tiePointGrid.getData().getElems());
inputStream.seek(0);
if (dataType == ProductData.TYPE_FLOAT32) {
inputStream.readFully(data, 0, data.length);
} else {
final double[] doubles = new double[data.length];
inputStream.readFully(doubles, 0, doubles.length);
int i = 0;
for (double d : doubles) {
data[i++] = (float) d;
}
}
inputStream.close();
inputStream = null;
// See if we have a -180...+180 or a 0...360 degree discontinuity
if (tiePointGrid.getDiscontinuity() != TiePointGrid.DISCONT_NONE) {
tiePointGrid.setDiscontinuity(TiePointGrid.getDiscontinuity(data));
}
} catch (Exception e) {
throw new IOException(
MessageFormat.format(
"I/O error while reading tie-point grid ''{0}''.", tiePointGridName),
e);
} finally {
if (inputStream != null) {
inputStream.close();
}
}
}
}
private void bindBandsToFiles(Document dom) {
bandDataFiles = DimapProductHelpers.getBandDataFiles(dom, product, getInputDir());
final Band[] bands = product.getBands();
for (final Band band : bands) {
if (band instanceof VirtualBand || band instanceof FilterBand) {
continue;
}
final File dataFile = bandDataFiles.get(band);
if (dataFile == null || !dataFile.canRead()) {
SystemUtils.LOG.warning(
"DimapProductReader: Unable to read file '"
+ dataFile
+ "' referenced by '"
+ band.getName()
+ "'.");
SystemUtils.LOG.warning(
"DimapProductReader: Removed band '"
+ band.getName()
+ "' from product '"
+ product.getFileLocation()
+ "'.");
}
}
}
