001/**
002 * Copyright (c) 2012, 2014, Credit Suisse (Anatole Tresch), Werner Keil and others by the @author tag.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005 * use this file except in compliance with the License. You may obtain a copy of
006 * the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013 * License for the specific language governing permissions and limitations under
014 * the License.
015 */
016package org.javamoney.moneta.spi;
017
018import java.util.Objects;
019
020import javax.money.CurrencyUnit;
021import javax.money.MonetaryAmount;
022import javax.money.MonetaryOperator;
023
024import org.javamoney.moneta.RoundedMoney;
025import org.javamoney.moneta.function.MonetaryOperators;
026
027/**
028 * The implementation of {@link MonetaryAmountProducer} that creates {@link MonetaryAmount}
029 * using {@link RoundedMoney} using the {@link MonetaryOperator} as rounding operator
030 * @see {@link RoundedMoneyProducer#RoundedMoneyProducer(MonetaryOperator)}
031 * @author Otavio Santana
032 */
033public final class RoundedMoneyProducer implements MonetaryAmountProducer {
034
035        private final MonetaryOperator operator;
036
037        /**
038         * Creates this producer using this operator
039         * as rounding operator in all MonetaryAmount produced.
040         * @param operator
041         * @throws NullPointerException if operator is null
042         */
043        public RoundedMoneyProducer(MonetaryOperator operator) {
044                this.operator = Objects.requireNonNull(operator);
045        }
046
047        /**
048         * Returns the {@link MonetaryAmountProducer} that creates {@link MonetaryAmount}
049         * using the {@link RoundedMoney} implementation using {@link MonetaryOperators#rounding()}
050         * as rounding operator
051         * @see {@link RoundedMoneyProducer}
052         * @return the rounded money producer
053         */
054        public RoundedMoneyProducer() {
055                this.operator = MonetaryOperators.rounding();
056        }
057
058        @Override
059        public MonetaryAmount create(CurrencyUnit currency, Number number) {
060                return RoundedMoney.of(Objects.requireNonNull(number), Objects.requireNonNull(currency), operator);
061        }
062
063        public MonetaryOperator getOperator() {
064                return operator;
065        }
066
067}