com.ibm.icu.impl.number.MultiplierImpl Maven / Gradle / Ivy

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With inspiration from other libraries

There is a newer version: 2.12.15

// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html#License
package com.ibm.icu.impl.number;

import java.math.BigDecimal;

public class MultiplierImpl implements MicroPropsGenerator {
    final int magnitudeMultiplier;
    final BigDecimal bigDecimalMultiplier;
    final MicroPropsGenerator parent;

    public MultiplierImpl(int magnitudeMultiplier) {
        this.magnitudeMultiplier = magnitudeMultiplier;
        this.bigDecimalMultiplier = null;
        parent = null;
    }

    public MultiplierImpl(BigDecimal bigDecimalMultiplier) {
        this.magnitudeMultiplier = 0;
        this.bigDecimalMultiplier = bigDecimalMultiplier;
        parent = null;
    }

    private MultiplierImpl(MultiplierImpl base, MicroPropsGenerator parent) {
        this.magnitudeMultiplier = base.magnitudeMultiplier;
        this.bigDecimalMultiplier = base.bigDecimalMultiplier;
        this.parent = parent;
    }

    public MicroPropsGenerator copyAndChain(MicroPropsGenerator parent) {
        return new MultiplierImpl(this, parent);
    }

    @Override
    public MicroProps processQuantity(DecimalQuantity quantity) {
        MicroProps micros = parent.processQuantity(quantity);
        quantity.adjustMagnitude(magnitudeMultiplier);
        if (bigDecimalMultiplier != null) {
            quantity.multiplyBy(bigDecimalMultiplier);
        }
        return micros;
    }
}