/**
* Provides a complete set of the known codes provided by this authority. The returned set
* contains only numeric identifiers like {@code "84"}, {@code "27"}, <cite>etc</cite>. The
* authority name ({@code "CRS"}) is not included. This is consistent with the {@linkplain
* org.geotools.referencing.factory.epsg.DirectEpsgFactory#getAuthorityCodes codes returned by the
* EPSG factory} and avoid duplication, since the authority is the same for every codes returned
* by this factory. It also make it easier for clients to prepend whatever authority name they
* wish, as for example in the {@linkplain
* org.geotools.referencing.factory.AllAuthoritiesFactory#getAuthorityCodes all authorities
* factory}.
*/
public Set getAuthorityCodes(final Class type) throws FactoryException {
ensureInitialized();
final Set set = new LinkedHashSet();
for (final Iterator it = crsMap.entrySet().iterator(); it.hasNext(); ) {
final Map.Entry entry = (Map.Entry) it.next();
final CoordinateReferenceSystem crs = (CoordinateReferenceSystem) entry.getValue();
if (type.isAssignableFrom(crs.getClass())) {
final Integer code = (Integer) entry.getKey();
set.add(String.valueOf(code));
}
}
return set;
}
