| /** |
| * Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior |
| * University |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| * not use this file except in compliance with the License. You may obtain |
| * a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| **/ |
| |
| package org.projectfloodlight.openflow.types; |
| |
| import java.math.BigInteger; |
| |
| import org.jboss.netty.buffer.ChannelBuffer; |
| import org.projectfloodlight.openflow.protocol.Writeable; |
| |
| import com.google.common.primitives.UnsignedLongs; |
| |
| public class U64 implements Writeable, OFValueType<U64> { |
| private static final long UNSIGNED_MASK = 0x7fffffffffffffffL; |
| private final static long ZERO_VAL = 0; |
| public final static U64 ZERO = new U64(ZERO_VAL); |
| |
| private final long raw; |
| |
| protected U64(final long raw) { |
| this.raw = raw; |
| } |
| |
| public static U64 of(long raw) { |
| return ofRaw(raw); |
| } |
| |
| public static U64 ofRaw(final long raw) { |
| if(raw == ZERO_VAL) |
| return ZERO; |
| return new U64(raw); |
| } |
| |
| public static U64 parseHex(String hex) { |
| return new U64(new BigInteger(hex, 16).longValue()); |
| } |
| |
| public long getValue() { |
| return raw; |
| } |
| |
| public BigInteger getBigInteger() { |
| BigInteger bigInt = BigInteger.valueOf(raw & UNSIGNED_MASK); |
| if (raw < 0) { |
| bigInt = bigInt.setBit(Long.SIZE - 1); |
| } |
| return bigInt; |
| } |
| |
| @Override |
| public String toString() { |
| return getBigInteger().toString(); |
| } |
| |
| public static BigInteger f(final long value) { |
| BigInteger bigInt = BigInteger.valueOf(value & UNSIGNED_MASK); |
| if (value < 0) { |
| bigInt = bigInt.setBit(Long.SIZE - 1); |
| } |
| return bigInt; |
| } |
| |
| public static long t(final BigInteger l) { |
| return l.longValue(); |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + (int) (raw ^ (raw >>> 32)); |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| U64 other = (U64) obj; |
| if (raw != other.raw) |
| return false; |
| return true; |
| } |
| |
| @Override |
| public int getLength() { |
| return 8; |
| } |
| |
| @Override |
| public U64 applyMask(U64 mask) { |
| return ofRaw(raw & mask.raw); |
| } |
| |
| @Override |
| public void writeTo(ChannelBuffer bb) { |
| bb.writeLong(raw); |
| } |
| |
| @Override |
| public int compareTo(U64 o) { |
| return UnsignedLongs.compare(raw, o.raw); |
| } |
| |
| } |