private final void populateFieldFromMapTypeFamily(
T entity, Field field, KijiColumn column, KijiRowData row)
throws IOException, IllegalAccessException {
LOG.debug("Populating field '{}' from map-type family '{}'.", field, column.family());
if (column.pageSize() > 0) {
// Field is a closeable iterator of map-family entries (qualifier, timestamp, value).
LOG.debug(
"Populating field '{}' from paging-enabled map-type family '{}'.",
field,
column.family());
final MapFamilyVersionIterator<?> iterator =
new MapFamilyVersionIterator<Object>(
row, column.family(), column.pageSize(), column.pageSize());
field.set(entity, iterator);
} else if (column.maxVersions() == 1) {
// Field is a map: qualifier -> single value:
LOG.debug("Populating single version map field '{}'.", field);
Object value = null;
if (field.getType() == KijiCellIterator.class) {
Iterator<KijiCell<Object>> it = row.iterator(column.family());
value = new KijiCellIterator<Object>(it);
} else if (field.getType() == MapTypeCell.class) {
value = new MapTypeCell<Object>(row.getMostRecentCells(column.family()));
} else if (field.getType() == MapTypeValue.class) {
value = new MapTypeValue<Object>(row.getMostRecentValues(column.family()));
}
field.set(entity, value);
} else {
// Field is a map: qualifier -> time-series
LOG.debug("Populating map field '{}'.", field);
Object value = null;
if (field.getType() == KijiCellIterator.class) {
Iterator<KijiCell<Object>> it = row.iterator(column.family());
value = new KijiCellIterator<Object>(it);
} else if (field.getType() == TSMapTypeValue.class) {
// TODO: ARGH. This is awful.
TSMapTypeValue<Object> tsValues = new TSMapTypeValue<Object>();
for (String s : row.getQualifiers(column.family())) {
final TimeSeries<Object> timeseries = new TimeSeries<Object>();
for (final KijiCell<Object> cell : row.asIterable(column.family(), s)) {
timeseries.put(cell.getTimestamp(), cell.getData());
}
tsValues.put(s, timeseries);
}
value = tsValues;
}
field.set(entity, value);
}
}
