io.virtdata.libbasics.shared.from_long.to_bigint.ModuloToBigInt Maven / Gradle / Ivy

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With inspiration from other libraries

There is a newer version: 2.12.15

/*
 *
 *       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.libbasics.shared.from_long.to_bigint;

import io.virtdata.annotations.Categories;
import io.virtdata.annotations.Category;
import io.virtdata.annotations.ThreadSafeMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.math.BigInteger;
import java.util.function.LongFunction;

/**
 * Return a {@code BigInteger} value as the result of modulo division with the specified divisor.
 */
@ThreadSafeMapper
@Categories({Category.conversion})
public class ModuloToBigInt implements LongFunction {
    private final static Logger logger = LoggerFactory.getLogger(ModuloToBigInt.class);

    private final long modulo;

    public ModuloToBigInt() {
        this.modulo = Long.MAX_VALUE;
    }

    public ModuloToBigInt(long modulo) {
        this.modulo=modulo;
    }

    @Override
    public BigInteger apply(long value) {
        long ret = (value % modulo) & Long.MAX_VALUE;
        return BigInteger.valueOf(ret);
    }
}