org.mayocat.shop.taxes.PriceWithTaxes.java Source code

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Here is the source code for org.mayocat.shop.taxes.PriceWithTaxes.java

Source

/*
 * Copyright (c) 2012, Mayocat <hello@mayocat.org>
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
package org.mayocat.shop.taxes;

import java.io.Serializable;
import java.math.BigDecimal;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.common.base.Objects;

/**
 * Represents a price with taxes. Right now only VAT is supported.
 *
 * This is a container, immutable object.
 *
 * PriceWithTaxes objects holds strictly no information about how the taxes were calculated (what rate, what country,
 * etc.), they just hold the inclusive, exclusive and tax amounts.
 *
 * @version $Id: 26fa00d4a56ad7575b5af83cdf9bf0f2bedbf7d1 $
 */
public class PriceWithTaxes implements Serializable {
    private final BigDecimal incl;

    private final BigDecimal excl;

    private final BigDecimal vat;

    @JsonCreator
    public PriceWithTaxes(@JsonProperty("incl") BigDecimal incl, @JsonProperty("excl") BigDecimal excl,
            @JsonProperty("vat") BigDecimal vat) {
        this.incl = incl;
        this.excl = excl;
        this.vat = vat;
    }

    public BigDecimal excl() {
        return excl;
    }

    public BigDecimal incl() {
        return incl;
    }

    public BigDecimal vat() {
        return vat;
    }

    //

    public PriceWithTaxes add(PriceWithTaxes price) {
        return new PriceWithTaxes(this.incl().add(price.incl()), this.excl().add(price.excl()),
                this.vat().add(price.vat()));
    }

    public PriceWithTaxes multiply(Long quantity) {
        return new PriceWithTaxes(this.incl().multiply(BigDecimal.valueOf(quantity)),
                this.excl().multiply(BigDecimal.valueOf(quantity)),
                this.vat().multiply(BigDecimal.valueOf(quantity)));
    }

    //

    @Override
    public int hashCode() {
        return Objects.hashCode(this.incl, this.excl, this.vat);
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final PriceWithTaxes other = (PriceWithTaxes) obj;

        return Objects.equal(this.incl, other.incl) && Objects.equal(this.excl, other.excl)
                && Objects.equal(this.vat, other.vat);
    }

    @Override
    public String toString() {
        return super.toString();
    }
}