private void updateMetadata() {
final Product targetProduct = super.getTargetProduct();
final MetadataElement root = targetProduct.getMetadataRoot();
if (root == null) {
return;
}
MetadataElement abstractedMetadata = root.getElement("Abstracted_Metadata");
if (abstractedMetadata == null) {
return;
}
MetadataElement productElem = abstractedMetadata.getElement("Product_Information");
if (productElem == null) {
productElem = new MetadataElement("Product_Information");
abstractedMetadata.addElement(productElem);
}
MetadataElement inputElem = productElem.getElement("InputProducts");
if (inputElem == null) {
inputElem = new MetadataElement("InputProducts");
productElem.addElement(inputElem);
}
final MetadataAttribute[] inputProductAttrbList = inputElem.getAttributes();
boolean found = false;
for (MetadataAttribute attrib : inputProductAttrbList) {
if (attrib.getData().getElemString().equals(targetProduct.getName())) found = true;
}
if (!found) {
final MetadataAttribute inputAttrb =
addAttribute(inputElem, "InputProduct", ProductData.TYPE_ASCII, "", "");
inputAttrb.getData().setElems(targetProduct.getName());
}
}
/** Create target product. */
private void createTargetProduct() {
targetProduct =
new Product(
sourceProduct.getName(),
sourceProduct.getProductType(),
sourceImageWidth,
sourceImageHeight);
ProductUtils.copyProductNodes(sourceProduct, targetProduct);
addSelectedBands();
final MetadataElement absTgt = AbstractMetadata.getAbstractedMetadata(targetProduct);
if (externalDEMFile != null) { // if external DEM file is specified by user
AbstractMetadata.setAttribute(absTgt, AbstractMetadata.DEM, externalDEMFile.getPath());
} else {
AbstractMetadata.setAttribute(absTgt, AbstractMetadata.DEM, demName);
}
absTgt.setAttributeString("DEM resampling method", demResamplingMethod);
if (externalDEMFile != null) {
absTgt.setAttributeDouble("external DEM no data value", externalDEMNoDataValue);
}
sourceGeoCoding = sourceProduct.getSceneGeoCoding();
targetProduct.setPreferredTileSize(targetProduct.getSceneRasterWidth(), tileSize);
}
public static MetadataAttribute addAttribute(
final MetadataElement dest,
final String tag,
final int dataType,
final String unit,
final String desc) {
final MetadataAttribute attribute = new MetadataAttribute(tag, dataType, 1);
attribute.setUnit(unit);
attribute.setDescription(desc);
attribute.setReadOnly(true);
dest.addAttribute(attribute);
return attribute;
}
/**
* Retrieve required data from Abstracted Metadata
*
* @throws Exception if metadata not found
*/
private void getMetadata() throws Exception {
srgrFlag = AbstractMetadata.getAttributeBoolean(absRoot, AbstractMetadata.srgr_flag);
wavelength = SARUtils.getRadarFrequency(absRoot);
rangeSpacing = AbstractMetadata.getAttributeDouble(absRoot, AbstractMetadata.range_spacing);
firstLineUTC = absRoot.getAttributeUTC(AbstractMetadata.first_line_time).getMJD(); // in days
lastLineUTC = absRoot.getAttributeUTC(AbstractMetadata.last_line_time).getMJD(); // in days
lineTimeInterval =
absRoot.getAttributeDouble(AbstractMetadata.line_time_interval)
/ Constants.secondsInDay; // s to day
orbitStateVectors = AbstractMetadata.getOrbitStateVectors(absRoot);
if (srgrFlag) {
srgrConvParams = AbstractMetadata.getSRGRCoefficients(absRoot);
} else {
nearEdgeSlantRange =
AbstractMetadata.getAttributeDouble(absRoot, AbstractMetadata.slant_range_to_first_pixel);
}
final TiePointGrid incidenceAngle = OperatorUtils.getIncidenceAngle(sourceProduct);
nearRangeOnLeft = SARGeocoding.isNearRangeOnLeft(incidenceAngle, sourceImageWidth);
}