/*
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * 
 * 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. See accompanying LICENSE file.
 */

package voldemort.performance.benchmark.generator;

public class SkewedLatestGenerator extends IntegerGenerator {

    private CounterGenerator basis;
    private ZipfianGenerator zipfian;

    public SkewedLatestGenerator(CounterGenerator basis) {
        this.basis = basis;
        this.zipfian = new ZipfianGenerator(basis.lastInt());
        nextInt();
    }

    @Override
    public int nextInt() {
        int max = basis.lastInt();
        int nextint = max - zipfian.nextInt(max);
        setLastInt(nextint);
        return nextint;
    }

}
