private static void Validate(IpAddress entity)
{
if (StringUtils.IsBlank(entity.IpAddressValue))
{
throw new InvalidIpAddressException("IP Address cannot be blank");
}
const string pattern = @"[0-9]{1,3}(.[0-9]{1,3}){3,3}";
if (!Regex.IsMatch(entity.IpAddressValue, pattern))
{
throw new InvalidIpAddressException("The entered value does not appear to be a valid IP address");
}
IpAddressFinder finder = new IpAddressFinder();
finder.IpAddressValue = entity.IpAddressValue;
IpAddress ipAddress = IpAddress.FindOne(finder);
if (!ipAddress.IsNull)
{
if (entity.IsNew)
{
throw new InvalidIpAddressException("That IP Address already exists");
}
if (entity.IpAddressId.Equals(ipAddress.IpAddressId))
{
throw new InvalidIpAddressException("That IP Address already exists");
}
}
}
