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A collection of classes shared by broadleaf profile, cms, admin, and core.
/*
* Copyright 2008-2013 the original author or authors.
*
* 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 org.broadleafcommerce.common.money;
import java.math.BigDecimal;
import java.util.Currency;
public final class BankersRounding {
public static final int DEFAULT_SCALE = 2;
public static final BigDecimal ZERO = setScale(0);
public static int getScaleForCurrency(Currency currency) {
if (currency != null) {
return currency.getDefaultFractionDigits();
} else {
return DEFAULT_SCALE;
}
}
public static BigDecimal setScale(int scale, BigDecimal amount) {
return amount.setScale(scale, BigDecimal.ROUND_HALF_EVEN);
}
public static BigDecimal setScale(int scale, double amount) {
return setScale(scale, new BigDecimal(amount));
}
public static double multiply(int scale, double multiplicand, double multiplier) {
return setScale(scale, multiplicand).multiply(setScale(scale, multiplier)).doubleValue();
}
public static BigDecimal divide(int scale, BigDecimal dividend, BigDecimal divisor) {
return dividend.divide(divisor, scale, BigDecimal.ROUND_HALF_EVEN);
}
public static double divide(int scale, double dividend, double divisor) {
return divide(setScale(scale, dividend), setScale(scale, divisor)).doubleValue();
}
public static BigDecimal setScale(BigDecimal amount) {
return setScale(DEFAULT_SCALE, amount);
}
public static BigDecimal setScale(BigDecimal amount, int scale) {
return setScale(scale, amount);
}
public static BigDecimal setScale(double amount) {
return setScale(DEFAULT_SCALE, new BigDecimal(amount));
}
public static BigDecimal divide(BigDecimal dividend, BigDecimal divisor) {
return divide(DEFAULT_SCALE, dividend, divisor);
}
public static BigDecimal zeroAmount() {
return ZERO;
}
}
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