public void sequence(DapSequence seq) throws DapException {
List<DapVariable> fields = seq.getFields();
Odometer odom = null;
if (seq.getRank() == 0) { // scalar
odom = new ScalarOdometer();
} else { // dimensioned
List<Slice> slices = ce.getConstrainedSlices(seq);
odom = Odometer.factory(slices, seq.getDimensions(), false);
}
try {
while (odom.hasNext()) {
// Decide how many rows for this sequence
int nrows = (rowcount == 0 ? this.values.nextCount(MAXROWS) : rowcount);
writer.writeObject(DapType.INT64, (long) nrows);
for (int i = 0; i < nrows; i++) {
for (int j = 0; j < fields.size(); j++) {
DapVariable field = fields.get(j);
variable(field);
}
}
odom.next();
}
} catch (IOException ioe) {
throw new DapException(ioe);
}
}
public void atomicVariable(DapAtomicVariable dapvar) throws DapException {
DapType basetype = dapvar.getBaseType();
Odometer odom = null;
if (dapvar.getRank() == 0) { // scalar
odom = new ScalarOdometer();
} else { // dimensioned
// get the slices from the constraint
List<Slice> slices = ce.getConstrainedSlices(dapvar);
// Create an odometer from the slices
odom = Odometer.factory(slices, dapvar.getDimensions(), false);
}
while (odom.hasNext()) {
Object value = values.nextValue(basetype);
if (DEBUG) {
System.err.printf("generate: %s = %s\n", dapvar.getFQN(), value);
System.err.flush();
}
try {
assert (writer != null);
writer.writeObject(basetype, value);
} catch (IOException ioe) {
throw new DapException(ioe);
}
odom.next();
}
}
public void structure(DapStructure struct) throws DapException {
List<DapVariable> fields = struct.getFields();
Odometer odom = null;
if (struct.getRank() == 0) { // scalar
odom = new ScalarOdometer();
} else { // dimensioned
List<Slice> slices = ce.getConstrainedSlices(struct);
odom = Odometer.factory(slices, struct.getDimensions(), false);
}
while (odom.hasNext()) {
// generate a value for each field recursively
for (int i = 0; i < fields.size(); i++) {
DapVariable field = fields.get(i);
variable(field);
}
odom.next();
}
}
/**
* Projection X Iterator This basically returns an odometer that will iterate over the appropriate
* values.
*
* @param var over whose dimensions to iterate
* @throws DapException
*/
public Odometer projectionIterator(DapVariable var) throws DapException {
Segment seg = findSegment(var);
if (seg == null) return null;
return Odometer.factory(seg.slices, seg.dimset, false);
}