package org.apache.cassandra.stress.generate;
/*
*
* 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.
*
*/
public class RatioDistribution
{
final Distribution distribution;
final double divisor;
public RatioDistribution(Distribution distribution, double divisor)
{
this.distribution = distribution;
this.divisor = divisor;
}
// yields a value between 0 and 1
public double next()
{
return Math.max(0f, Math.min(1f, distribution.nextDouble() / divisor));
}
public double min()
{
return Math.min(1d, distribution.minValue() / divisor);
}
public double max()
{
return Math.min(1d, distribution.maxValue() / divisor);
}
}