| /** |
| * 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.openflow.types; |
| |
| import java.math.BigInteger; |
| |
| public class U64 { |
| private static final long UNSIGNED_MASK = 0x7fffffffffffffffL; |
| |
| private final long raw; |
| |
| private U64(final long raw) { |
| this.raw = raw; |
| } |
| |
| public static U64 of(final long raw) { |
| return new U64(raw); |
| } |
| |
| 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(); |
| } |
| } |