Java BigDecimal Format formatStore(long store)

Description

format Store

License

Apache License

Declaration

public static String formatStore(long store) 

Method Source Code

//package com.java2s;
/*//  w w  w. j  a v a2 s  .  c om
 * Copyright 1999-2012 Alibaba Group.
 *  
 * 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.
 */

import java.math.BigDecimal;

public class Main {
    private static final long KB = 1024L;
    private static final long MB = 1024L * 1024;
    private static final long GB = 1024L * 1024 * 1024;
    private static final long TB = 1024L * 1024 * 1024 * 1024;

    public static String formatStore(long store) {
        if (store > TB) {
            double mem = divider(store, TB, 2);
            return new StringBuilder(String.valueOf(mem)).append(" ").append("TB").toString();
        } else if (store > GB) {
            double mem = divider(store, GB, 2);
            return new StringBuilder(String.valueOf(mem)).append(" ").append("GB").toString();
        } else if (store > MB) {
            double mem = divider(store, MB, 2);
            return new StringBuilder(String.valueOf(mem)).append(" ").append("MB").toString();
        } else if (store > KB) {
            double mem = divider(store, KB, 2);
            return new StringBuilder(String.valueOf(mem)).append(" ").append("KB").toString();
        } else {
            return new StringBuilder(String.valueOf(store)).append(" ").append("B").toString();
        }
    }

    public static double divider(double d1, double d2, int scale) {
        if (d2 == 0) {
            return 0;
        }
        BigDecimal bd1 = new BigDecimal(Double.toString(d1));
        BigDecimal bd2 = new BigDecimal(Double.toString(d2));
        return bd1.divide(bd2, scale, BigDecimal.ROUND_HALF_UP).doubleValue();
    }
}

Related

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2. formatRateForDisplay(BigDecimal rate)
3. formatRight(BigDecimal pNombre, NumberFormat pNf, int pMaxNumberOfDigit)
4. formatServiceSpecificDate(Date date)
5. formatSize(Integer size)
6. formattedFromBigDecimal(BigDecimal number, int scale, Locale locale)
7. formattedToBigDecimal(String str, Locale locale)
8. formatTime(BigDecimal seconds)
9. formatTwoDecimals(float num)