io.virtdata.functional.Murmur3DivToLong Maven / Gradle / Ivy
/*
*
* Copyright 2015 Jonathan Shook
*
* 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 io.virtdata.functional;
import de.greenrobot.common.hash.Murmur3F;
import java.util.function.LongUnaryOperator;
public class Murmur3DivToLong implements LongUnaryOperator {
private Murmur3F murmur3f = new Murmur3F();
private DivideToLong divideToLongMapper;
public Murmur3DivToLong(long divisor) {
this.divideToLongMapper = new DivideToLong(divisor);
}
@Override
public long applyAsLong(long input) {
long divided= divideToLongMapper.applyAsLong(input);
murmur3f.update((int) (divided % Integer.MAX_VALUE));
return murmur3f.getValue();
}
}