Rich Lane | 53ddf5c | 2014-03-20 15:24:08 -0700 | [diff] [blame] | 1 | package org.projectfloodlight.openflow.types; |
| 2 | |
| 3 | import javax.annotation.concurrent.Immutable; |
| 4 | |
| 5 | import org.jboss.netty.buffer.ChannelBuffer; |
| 6 | |
| 7 | import com.google.common.hash.PrimitiveSink; |
| 8 | import com.google.common.primitives.UnsignedInts; |
| 9 | |
| 10 | @Immutable |
| 11 | public class UDF implements OFValueType<UDF> { |
| 12 | static final int LENGTH = 4; |
| 13 | private final int rawValue; |
| 14 | |
| 15 | public static final UDF ZERO = UDF.of(0x0); |
| 16 | public static final UDF NO_MASK = UDF.of(0xFFFFFFFF); |
| 17 | public static final UDF FULL_MASK = UDF.of(0x00000000); |
| 18 | |
| 19 | private UDF(final int rawValue) { |
| 20 | this.rawValue = rawValue; |
| 21 | } |
| 22 | |
| 23 | public static UDF of(final int raw) { |
| 24 | return new UDF(raw); |
| 25 | } |
| 26 | |
| 27 | public int getInt() { |
| 28 | return rawValue; |
| 29 | } |
| 30 | |
| 31 | @Override |
| 32 | public int getLength() { |
| 33 | return LENGTH; |
| 34 | } |
| 35 | |
| 36 | @Override |
| 37 | public int hashCode() { |
| 38 | final int prime = 31; |
| 39 | int result = 1; |
| 40 | result = prime * result + rawValue; |
| 41 | return result; |
| 42 | } |
| 43 | |
| 44 | @Override |
| 45 | public boolean equals(Object obj) { |
| 46 | if (this == obj) |
| 47 | return true; |
| 48 | if (obj == null) |
| 49 | return false; |
| 50 | if (getClass() != obj.getClass()) |
| 51 | return false; |
| 52 | UDF other = (UDF) obj; |
| 53 | if (rawValue != other.rawValue) |
| 54 | return false; |
| 55 | return true; |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public String toString() { |
| 60 | return Integer.toString(rawValue); |
| 61 | } |
| 62 | |
| 63 | public void write4Bytes(ChannelBuffer c) { |
| 64 | c.writeInt(rawValue); |
| 65 | } |
| 66 | |
| 67 | public static UDF read4Bytes(ChannelBuffer c) { |
| 68 | return UDF.of(c.readInt()); |
| 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public UDF applyMask(UDF mask) { |
| 73 | return UDF.of(this.rawValue & mask.rawValue); |
| 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public int compareTo(UDF o) { |
| 78 | return UnsignedInts.compare(rawValue, o.rawValue); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public void putTo(PrimitiveSink sink) { |
| 83 | sink.putInt(rawValue); |
| 84 | } |
| 85 | } |