private void handleMetadataGroup(Group group, MetadataElement metadataElement)
throws ProductIOException {
List<Variable> variables = group.getVariables();
for (Variable variable : variables) {
final String name = variable.getShortName();
final int dataType = getProductDataType(variable);
Array array;
try {
array = variable.read();
} catch (IOException e) {
throw new ProductIOException(e.getMessage());
}
final ProductData data = ProductData.createInstance(dataType, array.getStorage());
final MetadataAttribute attribute = new MetadataAttribute("data", data, true);
final MetadataElement sdsElement = new MetadataElement(name);
sdsElement.addAttribute(attribute);
metadataElement.addElement(sdsElement);
final List<Attribute> list = variable.getAttributes();
for (Attribute hdfAttribute : list) {
final String attribName = hdfAttribute.getShortName();
if ("units".equals(attribName)) {
attribute.setUnit(hdfAttribute.getStringValue());
} else if ("long_name".equals(attribName)) {
attribute.setDescription(hdfAttribute.getStringValue());
} else {
addAttributeToElement(sdsElement, hdfAttribute);
}
}
}
}
public MetadataElement getAsMetadataElement(CompoundData compoundData) throws IOException {
CompoundType type = compoundData.getType();
final int memberCount = type.getMemberCount();
MetadataElement metadataElement = new MetadataElement(type.getName());
for (int i = 0; i < memberCount; i++) {
String typeName = type.getMemberName(i);
CompoundMember member = type.getMember(i);
FormatMetadata formatMetadata = (FormatMetadata) member.getMetadata();
if (typeName.equals("fill")) {
// ignore
} else if (formatMetadata != null && formatMetadata.getType().equals("string")) {
String stringValue = getAsString(compoundData.getSequence(i));
Map<Object, String> map = getMetaData(member).getItemMap();
if (map != null) {
stringValue = map.get(stringValue);
}
ProductData data = ProductData.createInstance(stringValue);
MetadataAttribute attribute = new MetadataAttribute(typeName, data, true);
attribute.setDescription(getDescription(member));
attribute.setUnit(getUnits(member));
metadataElement.addAttribute(attribute);
} else if (member.getType().getName().equals("DATE")) {
CompoundData dateCompound = compoundData.getCompound(i);
ProductData data = createDate(dateCompound);
MetadataAttribute attribute = new MetadataAttribute(typeName, data, true);
attribute.setDescription(getDescription(member));
attribute.setUnit(getUnits(member));
metadataElement.addAttribute(attribute);
} else if (member.getType().isSequenceType()) {
SequenceData sequence = compoundData.getSequence(i);
for (int j = 0; j < sequence.getType().getElementCount(); j++) {
CompoundData compound = sequence.getCompound(j);
metadataElement.addElement(getAsMetadataElement(compound));
}
} else if (member.getType().isCompoundType()) {
metadataElement.addElement(getAsMetadataElement(compoundData.getCompound(i)));
} else if (member.getType().isSimpleType()) {
int intValue = compoundData.getInt(i);
Map<Object, String> map = getMetaData(member).getItemMap();
ProductData data;
if (map != null) {
String stringValue = map.get(intValue);
data = ProductData.createInstance(stringValue);
} else {
double scalingFactor = getMetaData(member).getScalingFactor();
if (scalingFactor == 1.0) {
data = ProductData.createInstance(new int[] {intValue});
} else {
data = ProductData.createInstance(new double[] {intValue * scalingFactor});
}
}
MetadataAttribute attribute = new MetadataAttribute(typeName, data, true);
attribute.setDescription(getDescription(member));
attribute.setUnit(getUnits(member));
metadataElement.addAttribute(attribute);
} else {
System.out.println("not handled: name=" + typeName);
System.out.println("member = " + member.getType());
}
}
return metadataElement;
}