/**
* Returns a new consistent hash of the same type with the given address removed.
*
* @param ch consistent hash to start with
* @param toRemove address to remove
* @param c configuration
* @return a new consistent hash instance of the same type
*/
public static ConsistentHash removeAddress(ConsistentHash ch, Address toRemove, Configuration c) {
if (ch instanceof UnionConsistentHash)
return removeAddressFromUnionConsistentHash((UnionConsistentHash) ch, toRemove, c);
else {
ConsistentHash newCH = constructConsistentHashInstance(c);
Set<Address> caches = new HashSet<Address>(ch.getCaches());
caches.remove(toRemove);
newCH.setCaches(caches);
return newCH;
}
}
