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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.disttest.client.property;
import java.util.Arrays;
/**
* Provides support for numeric generators with lower and upper boundaries.
*/
public abstract class NumericGeneratedPropertySupport extends GeneratedPropertySupport
{
public static final Class<?>[] SUPPORTED_TYPES = { double.class, float.class, int.class, long.class, short.class,
byte.class };
private String _type;
private double _upper;
private double _lower;
public NumericGeneratedPropertySupport()
{
super();
_type = SUPPORTED_TYPES[0].getName();
_upper = Double.MAX_VALUE;
_lower = 0.0;
}
public synchronized String getType()
{
return _type;
}
public synchronized double getUpper()
{
return _upper;
}
public synchronized double getLower()
{
return _lower;
}
public synchronized void setUpper(double upper)
{
_upper = upper;
}
public synchronized void setLower(double lower)
{
_lower = lower;
}
public synchronized void setType(String type)
{
_type = toClass(type).getName();
}
protected Class<?> toClass(String type)
{
Class<?> t = null;
for (int i = 0; i < SUPPORTED_TYPES.length; i++)
{
if (SUPPORTED_TYPES[i].getName().equals(type))
{
t = SUPPORTED_TYPES[i];
break;
}
}
if (t == null)
{
throw new IllegalArgumentException("Type " + type + " is not supported: "
+ Arrays.toString(SUPPORTED_TYPES));
}
return t;
}
@Override
public Object nextValue()
{
double result = nextDouble();
return doubleToNumber(result, toClass(_type));
}
protected Number doubleToNumber(double value, Class<?> targetType)
{
Number result = null;
if (targetType == double.class)
{
result = new Double(value);
}
else if (targetType == float.class)
{
result = new Float(value);
}
else if (targetType == int.class)
{
result = new Integer((int) value);
}
else if (targetType == long.class)
{
result = new Long((long) value);
}
else if (targetType == short.class)
{
result = new Short((short) value);
}
else if (targetType == byte.class)
{
result = new Byte((byte) value);
}
else
{
throw new IllegalArgumentException("Type " + targetType + " is not supported: "
+ Arrays.toString(SUPPORTED_TYPES));
}
return result;
}
protected abstract double nextDouble();
@Override
public int hashCode()
{
final int prime = 31;
int result = super.hashCode();
long temp;
temp = Double.doubleToLongBits(_lower);
result = prime * result + (int) (temp ^ (temp >>> 32));
result = prime * result + ((_type == null) ? 0 : _type.hashCode());
temp = Double.doubleToLongBits(_upper);
result = prime * result + (int) (temp ^ (temp >>> 32));
return result;
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null || !(obj instanceof NumericGeneratedPropertySupport))
{
return false;
}
NumericGeneratedPropertySupport other = (NumericGeneratedPropertySupport) obj;
if (Double.doubleToLongBits(_lower) != Double.doubleToLongBits(other._lower)
|| Double.doubleToLongBits(_upper) != Double.doubleToLongBits(other._upper))
{
return false;
}
if (_type == null && other._type != null)
{
return false;
}
else if (!_type.equals(other._type))
{
return false;
}
return true;
}
}
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