private void doVariable(Variable v, opendap.dap.AttributeTable parentTable) {
List dims = v.getDimensions();
for (int i = 0; i < dims.size(); i++) {
Dimension dim = (Dimension) dims.get(i);
if (dim.isShared()) usedDims.put(dim.getName(), dim);
}
// if (v.getAttributes().size() == 0) return; // LOOK DAP 2 say must have empty
String name = NcDDS.escapeName(v.getShortName());
opendap.dap.AttributeTable table;
if (parentTable == null) {
table = new opendap.dap.AttributeTable(name);
try {
addAttributeTable(name, table);
} catch (AttributeExistsException e) {
log.error("Cant add " + name, e);
}
} else {
table = parentTable.appendContainer(name);
}
addAttributes(table, v, v.getAttributes().iterator());
if (v instanceof Structure) {
Structure s = (Structure) v;
List nested = s.getVariables();
for (int i = 0; i < nested.size(); i++) {
Variable nv = (Variable) nested.get(i);
doVariable(nv, table);
}
}
}
private int addAttributes(opendap.dap.AttributeTable table, Variable v, Iterator iter) {
int count = 0;
// add attribute table for this variable
while (iter.hasNext()) {
Attribute att = (Attribute) iter.next();
int dods_type = DODSNetcdfFile.convertToDODSType(att.getDataType(), false);
try {
String attName = NcDDS.escapeName(att.getName());
if (att.isString()) {
/* FIX String value = escapeAttributeStringValues(att.getStringValue());
table.appendAttribute(attName, dods_type, "\""+value+"\"");
*/
table.appendAttribute(attName, dods_type, att.getStringValue());
} else {
// cant send signed bytes
if (att.getDataType() == DataType.BYTE) {
boolean signed = false;
for (int i = 0; i < att.getLength(); i++) {
if (att.getNumericValue(i).byteValue() < 0) signed = true;
}
if (signed) // promote to signed short
dods_type = opendap.dap.Attribute.INT16;
}
for (int i = 0; i < att.getLength(); i++)
table.appendAttribute(attName, dods_type, att.getNumericValue(i).toString());
}
count++;
} catch (Exception e) {
log.error(
"Error appending attribute " + att.getName() + " = " + att.getStringValue() + "\n" + e);
}
} // loop over variable attributes
// kludgy thing to map char arrays to DODS Strings
if ((v != null) && (v.getDataType().getPrimitiveClassType() == char.class)) {
int rank = v.getRank();
int strlen = (rank == 0) ? 0 : v.getShape(rank - 1);
Dimension dim = (rank == 0) ? null : v.getDimension(rank - 1);
try {
opendap.dap.AttributeTable dodsTable = table.appendContainer("DODS");
dodsTable.appendAttribute("strlen", opendap.dap.Attribute.INT32, Integer.toString(strlen));
if ((dim != null) && dim.isShared())
dodsTable.appendAttribute("dimName", opendap.dap.Attribute.STRING, dim.getName());
count++;
} catch (Exception e) {
log.error("Error appending attribute strlen\n" + e);
}
}
return count;
}