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/*
*
* 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.amqp_1_0.type;
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);
}
}
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