| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.qpid.proton.amqp; |
| |
| public final class UnsignedByte extends Number implements Comparable<UnsignedByte> |
| { |
| private final byte _underlying; |
| private static final UnsignedByte[] cachedValues = new UnsignedByte[256]; |
| |
| static |
| { |
| for(int i = 0; i<256; i++) |
| { |
| cachedValues[i] = new UnsignedByte((byte)i); |
| } |
| } |
| |
| public UnsignedByte(byte underlying) |
| { |
| _underlying = underlying; |
| } |
| |
| @Override |
| public byte byteValue() |
| { |
| return _underlying; |
| } |
| |
| @Override |
| public short shortValue() |
| { |
| return (short) intValue(); |
| } |
| |
| @Override |
| public int intValue() |
| { |
| return ((int)_underlying) & 0xFF; |
| } |
| |
| @Override |
| public long longValue() |
| { |
| return ((long) _underlying) & 0xFFl; |
| } |
| |
| @Override |
| public float floatValue() |
| { |
| return (float) longValue(); |
| } |
| |
| @Override |
| public double doubleValue() |
| { |
| return (double) longValue(); |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) |
| { |
| return false; |
| } |
| |
| UnsignedByte that = (UnsignedByte) o; |
| |
| if (_underlying != that._underlying) |
| { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| public int compareTo(UnsignedByte o) |
| { |
| return Integer.signum(intValue() - o.intValue()); |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return _underlying; |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.valueOf(intValue()); |
| } |
| |
| public static UnsignedByte valueOf(byte underlying) |
| { |
| final int index = ((int) underlying) & 0xFF; |
| return cachedValues[index]; |
| } |
| |
| public static UnsignedByte valueOf(final String value) |
| throws NumberFormatException |
| { |
| int intVal = Integer.parseInt(value); |
| if(intVal < 0 || intVal >= (1<<8)) |
| { |
| throw new NumberFormatException("Value \""+value+"\" lies outside the range [" + 0 + "-" + (1<<8) +")."); |
| } |
| return valueOf((byte)intVal); |
| } |
| |
| } |