| package org.projectfloodlight.openflow.types; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| |
| import com.google.common.hash.PrimitiveSink; |
| |
| public class OFBitMask128 implements OFValueType<OFBitMask128> { |
| |
| static final int LENGTH = 16; |
| |
| private final long raw1; // MSBs (ports 64-127) |
| private final long raw2; // LSBs (ports 0-63) |
| |
| public static final OFBitMask128 ALL = new OFBitMask128(-1, -1); |
| public static final OFBitMask128 NONE = new OFBitMask128(0, 0); |
| |
| private OFBitMask128(long raw1, long raw2) { |
| this.raw1 = raw1; |
| this.raw2 = raw2; |
| } |
| |
| static OFBitMask128 of(long raw1, long raw2) { |
| if (raw1 == -1 && raw2 == -1) |
| return ALL; |
| if (raw1 == 0 && raw2 == 0) |
| return NONE; |
| return new OFBitMask128(raw1, raw2); |
| } |
| |
| @Override |
| public int getLength() { |
| return LENGTH; |
| } |
| |
| @Override |
| public OFBitMask128 applyMask(OFBitMask128 mask) { |
| return of(this.raw1 & mask.raw1, this.raw2 & mask.raw2); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (!(obj instanceof OFBitMask128)) |
| return false; |
| OFBitMask128 other = (OFBitMask128)obj; |
| return (other.raw1 == this.raw1 && other.raw2 == this.raw2); |
| } |
| |
| @Override |
| public int hashCode() { |
| return (int)(31 * raw1 + raw2); |
| } |
| |
| protected static boolean isBitOn(long raw1, long raw2, int bit) { |
| if (bit < 0 || bit >= 128) |
| throw new IndexOutOfBoundsException(); |
| long word; |
| if (bit < 64) { |
| word = raw2; // ports 0-63 |
| } else { |
| word = raw1; // ports 64-127 |
| bit -= 64; |
| } |
| return (word & ((long)1 << bit)) != 0; |
| } |
| |
| public void write16Bytes(ChannelBuffer cb) { |
| cb.writeLong(raw1); |
| cb.writeLong(raw2); |
| } |
| |
| public static OFBitMask128 read16Bytes(ChannelBuffer cb) { |
| long raw1 = cb.readLong(); |
| long raw2 = cb.readLong(); |
| return of(raw1, raw2); |
| } |
| |
| public boolean isOn(int bit) { |
| return isBitOn(raw1, raw2, bit); |
| } |
| |
| @Override |
| public String toString() { |
| return (String.format("%64s", Long.toBinaryString(raw2)) + String.format("%64s", Long.toBinaryString(raw1))).replaceAll(" ", "0"); |
| } |
| |
| @Override |
| public int compareTo(OFBitMask128 o) { |
| long c = this.raw1 - o.raw1; |
| if (c != 0) |
| return Long.signum(c); |
| return Long.signum(this.raw2 - o.raw2); |
| } |
| |
| @Override |
| public void putTo(PrimitiveSink sink) { |
| sink.putLong(raw1); |
| sink.putLong(raw2); |
| } |
| |
| } |