/*******************************************************************************
* Copyright 2014 Analog Devices, Inc.
*
* 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 com.analog.lyric.options;
import net.jcip.annotations.Immutable;
import org.eclipse.jdt.annotation.Nullable;
/**
* Key for double options.
* <p>
* @since 0.07
* @author Christopher Barber
*/
@Immutable
public class DoubleOptionKey extends OptionKey<Double>
{
private static final long serialVersionUID = 1L;
private final Double _defaultValue;
private final double _lowerBound;
private final double _upperBound;
/**
* Creates a new double-valued option key with default value zero.
* <p>
* @param declaringClass is the class containing the static field declaration for this key.
* @param name is the name of static field declaration for this key.
* @since 0.07
*/
public DoubleOptionKey(Class<?> declaringClass, String name)
{
this(declaringClass, name, 0.0);
}
/**
* Creates a new double-valued option key with default value.
* <p>
* @param declaringClass is the class containing the static field declaration for this key.
* @param name is the name of static field declaration for this key.
* @param defaultValue is the default value of the option. Used when option is not set.
* @since 0.07
*/
public DoubleOptionKey(Class<?> declaringClass, String name, double defaultValue)
{
this(declaringClass, name, defaultValue, Double.NEGATIVE_INFINITY, Double.POSITIVE_INFINITY);
}
/**
* Creates a new double-valued option key with default value and bounds.
* @param declaringClass is the class containing the static field declaration for this key.
* @param name is the name of static field declaration for this key.
* @param defaultValue is the default value of the option. Used when option is not set.
* @param lowerBound is the lowest allowable value for the option.
* @param upperBound is the highest allowable value for the option.
* @since 0.07
*/
public DoubleOptionKey(Class<?> declaringClass, String name, double defaultValue,
double lowerBound, double upperBound)
{
this(declaringClass, name, defaultValue, lowerBound, upperBound, IOptionKey.Lookup.NONLOCAL);
}
/**
* Creates a new double-valued option key with default value and bounds.
* @param declaringClass is the class containing the static field declaration for this key.
* @param name is the name of static field declaration for this key.
* @param defaultValue is the default value of the option. Used when option is not set.
* @param lowerBound is the lowest allowable value for the option.
* @param upperBound is the highest allowable value for the option.
* @param lookupMethod specifies how the option value should be looked up.
* @since 0.08
*/
public DoubleOptionKey(Class<?> declaringClass, String name, double defaultValue, double lowerBound, double upperBound,
IOptionKey.Lookup lookupMethod)
{
super(declaringClass, name, lookupMethod);
_defaultValue = defaultValue;
_lowerBound = lowerBound;
_upperBound = upperBound;
validate(defaultValue, null);
}
/*--------------------
* IOptionKey methods
*/
@Override
public final Class<Double> type()
{
return Double.class;
}
@Override
public final Double defaultValue()
{
return defaultDoubleValue();
}
/**
* {@inheritDoc}
* <p>
* @throws ClassCastException if value is not an {@link Double}.
* @throws OptionValidationException if value is less than {@link #lowerBound()}
* or greater than {@link #upperBound()}.
*/
@Override
public Double validate(Double value, @Nullable IOptionHolder optionHolder)
{
value = super.validate(value, optionHolder);
// This is written in this fashion to correctly handle NaN values.
if (!(value >= _lowerBound && value <= _upperBound))
{
throw new OptionValidationException("Value %f is not in range [%f,%f].",
value, _lowerBound, _upperBound);
}
return value;
}
/**
* The default value of the option.
* @since 0.07
*/
public final double defaultDoubleValue()
{
return _defaultValue;
}
/**
* The lowest allowable value for the option.
* <p>
* If not specified in the constructor, this will default to {@link Double#NEGATIVE_INFINITY}.
* @since 0.07
*/
public final double lowerBound()
{
return _lowerBound;
}
/**
* The highest allowable value for the option.
* <p>
* If not specified in the constructor, this will default to {@link Double#POSITIVE_INFINITY}.
* @since 0.07
*/
public final double upperBound()
{
return _upperBound;
}
}