Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 1 | package org.projectfloodlight.openflow.types; |
| 2 | |
| 3 | import org.jboss.netty.buffer.ChannelBuffer; |
| 4 | |
| 5 | /** |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 6 | * |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 7 | * @author Yotam Harchol (yotam.harchol@bigswitch.com) |
| 8 | * |
| 9 | */ |
| 10 | public class ICMPv4Code implements OFValueType<ICMPv4Code> { |
| 11 | |
| 12 | final static int LENGTH = 1; |
| 13 | final static short MAX_CODE = 0xFF; |
| 14 | |
| 15 | private final short code; |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 16 | |
| 17 | private static final short NONE_VAL = 0; |
| 18 | public static final ICMPv4Code NONE = new ICMPv4Code(NONE_VAL); |
| 19 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 20 | public static final ICMPv4Code NO_MASK = new ICMPv4Code((short)0xFFFF); |
| 21 | public static final ICMPv4Code FULL_MASK = new ICMPv4Code((short)0x0000); |
| 22 | |
| 23 | private ICMPv4Code(short code) { |
| 24 | this.code = code; |
| 25 | } |
| 26 | |
| 27 | public static ICMPv4Code of(short code) { |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 28 | if(code == NONE_VAL) |
| 29 | return NONE; |
| 30 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 31 | if (code > MAX_CODE || code < 0) |
| 32 | throw new IllegalArgumentException("Illegal ICMPv4 code: " + code); |
| 33 | return new ICMPv4Code(code); |
| 34 | } |
| 35 | |
| 36 | @Override |
| 37 | public int getLength() { |
| 38 | return LENGTH; |
| 39 | } |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 40 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 41 | public short getCode() { |
| 42 | return code; |
| 43 | } |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 44 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 45 | public void writeByte(ChannelBuffer c) { |
| 46 | c.writeByte(this.code); |
| 47 | } |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 48 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 49 | public static ICMPv4Code readByte(ChannelBuffer c) { |
| 50 | return ICMPv4Code.of(c.readUnsignedByte()); |
| 51 | } |
| 52 | |
| 53 | @Override |
| 54 | public ICMPv4Code applyMask(ICMPv4Code mask) { |
| 55 | return ICMPv4Code.of((short)(this.code & mask.code)); |
| 56 | } |
| 57 | |
Andreas Wundsam | b75c4ad | 2013-09-23 14:45:35 -0700 | [diff] [blame] | 58 | |
Yotam Harchol | f3f1115 | 2013-09-05 16:47:16 -0700 | [diff] [blame] | 59 | } |