Java BigDecimal Normalize normalizePrecision(String precision, BigDecimal... decimals)

Description

Returns the specified precision unless it is null, in which case the maximum precision from the list of decimals is returned.

License

Open Source License

Parameter

Parameter	Description
precision	Optional precision to be returned.
decimals	If precision not specified, the maximum precision from this list of decimals is returned.

Return

The resolved precision to be used by the caller.

Declaration

private static int normalizePrecision(String precision, BigDecimal... decimals) 

Method Source Code

//package com.java2s;
/*/*from  w  w w .ja v  a 2  s  . c  om*/
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Lachlan Dowding
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.math.BigDecimal;

public class Main {
    /**
     * The default decimal precision used by the methods in this class.
     */
    public static int DEFAULT_DECIMAL_PRECISION = 0;

    /**
     * Returns the specified precision unless it is null, in which case the maximum precision from the list of decimals
     * is returned.
     *
     * @param precision Optional precision to be returned.
     * @param decimals  If precision not specified, the maximum precision from this list of decimals is returned.
     * @return The resolved precision to be used by the caller.
     */
    private static int normalizePrecision(String precision, BigDecimal... decimals) {
        int result;
        if (precision != null) {
            result = Integer.parseInt(precision);
        } else {
            result = getMaxPrecision(decimals);
        }
        return result;
    }

    /**
     * Returns the maximum precision used by the given list of decimals.
     *
     * @param decimals A list of decimals to calculate the maximum precision of.
     * @return The maximum precision used by the given list of decimals.
     */
    private static int getMaxPrecision(BigDecimal... decimals) {
        int precision = DEFAULT_DECIMAL_PRECISION;
        if (decimals != null) {
            for (BigDecimal decimal : decimals) {
                if (decimal != null && decimal.scale() > precision)
                    precision = decimal.scale();
            }
        }
        return precision;
    }
}

Related

1. normalize(BigDecimal bigDecimal)
2. normalize(final BigDecimal dec)
3. normalizeDecimalValue(BigDecimal bigDecimal, int allowedPrecision)
4. normalizeScale(BigDecimal bigDecimal)