| package org.openflow.types; |
| |
| public class IPv4WithMask extends Masked<IPv4> { |
| |
| private IPv4WithMask(int rawValue, int rawMask) { |
| super(IPv4.of(rawValue), IPv4.of(rawMask)); |
| } |
| |
| private IPv4WithMask(IPv4 value, IPv4 mask) { |
| super(value, mask); |
| } |
| |
| public static IPv4WithMask of(int rawValue, int rawMask) { |
| return new IPv4WithMask(rawValue, rawMask); |
| } |
| |
| public static IPv4WithMask of(IPv4 value, IPv4 mask) { |
| return new IPv4WithMask(value, mask); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder res = new StringBuilder(); |
| res.append(((IPv4)value).toString()); |
| |
| int maskint = ((IPv4)mask).getInt(); |
| res.append('/'); |
| if (Integer.bitCount((~maskint) + 1) == 1) { |
| // CIDR notation |
| res.append(Integer.bitCount(maskint)); |
| } else { |
| // Full address mask |
| res.append(((IPv4)mask).toString()); |
| } |
| |
| return res.toString(); |
| } |
| |
| public static OFValueType ofPossiblyMasked(final String string) { |
| int slashPos; |
| String ip = string; |
| int maskBits = 0; |
| IPv4 maskAddress = null; |
| |
| // Read mask suffix |
| if ((slashPos = string.indexOf('/')) != -1) { |
| ip = string.substring(0, slashPos); |
| try { |
| String suffix = string.substring(slashPos + 1); |
| if (suffix.length() == 0) |
| throw new IllegalArgumentException("IP Address not well formed: " + string); |
| if (suffix.indexOf('.') != -1) { |
| // Full mask |
| maskAddress = IPv4.of(suffix); |
| } else { |
| // CIDR Suffix |
| maskBits = Integer.parseInt(suffix); |
| } |
| } catch (NumberFormatException e) { |
| throw new IllegalArgumentException("IP Address not well formed: " + string); |
| } |
| if (maskBits < 0 || maskBits > 32) { |
| throw new IllegalArgumentException("IP Address not well formed: " + string); |
| } |
| } |
| |
| // Read IP |
| IPv4 ipv4 = IPv4.of(ip); |
| |
| if (maskAddress != null) { |
| // Full address mask |
| return IPv4WithMask.of(ipv4, maskAddress); |
| } else if (maskBits == 0) { |
| // No mask |
| return ipv4; |
| } else { |
| // With mask |
| int mask = (-1) << (32 - maskBits); |
| return IPv4WithMask.of(ipv4, IPv4.of(mask)); |
| } |
| } |
| |
| } |