/**
* Creates a {@link IPRange} instance by IP with mask.
*
* @param ipWithMask IP/mask, such as 192.168.70.1/24
* @return {@link IPRange} instance
*/
public static IPRange parseFromIPWithMask(String ipWithMask) {
long minIpAsLong = 0;
long maxIpAsLong = 0;
String[] strs = ipWithMask.split("/");
if (strs.length == 2) {
IP ip = IP.parseFromString(strs[0]);
int mask = Integer.parseInt(strs[1]);
long maskAsLong = 0xffffffff << (32 - mask);
minIpAsLong = ip.toLong();
maxIpAsLong = minIpAsLong | (~maskAsLong);
} else {
throw new IllegalArgumentException(
"The input String format error. for example" + " 192.168.1.1/24");
}
return new IPRange(new IP(minIpAsLong), new IP(maxIpAsLong));
}
