Java Size stringToSize(String sizeString)

Description

string To Size

License

Apache License

Declaration

public static long stringToSize(String sizeString) throws ParseException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.text.ParseException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {

    public static long stringToSize(String sizeString) throws ParseException {
        Pattern pattern = Pattern.compile("(-?\\d+\\.?\\d*)([\\w]{0,2})", Pattern.CASE_INSENSITIVE);
        Matcher matcher = pattern.matcher(sizeString);
        if (matcher.matches()) {
            double baseSize = Double.parseDouble(matcher.group(1));
            String unit = matcher.group(2).toLowerCase();
            if (unit.equals("b") || unit.length() == 0) {
                return (long) baseSize;
            } else if (unit.equals("k") || unit.equals("kb")) {
                return (long) (baseSize * 1024);
            } else if (unit.equals("m") || unit.equals("mb")) {
                return (long) (baseSize * (1024 * 1024));
            } else if (unit.equals("g") || unit.equals("gb")) {
                return (long) (baseSize * (1024 * 1024 * 1024));
            } else if (unit.equals("e") || unit.equals("eb")) {
                return (long) (baseSize * (1024L * 1024 * 1024 * 1024));
            }/*from w w w  .j  a  va 2s.  c om*/
        }
        throw new ParseException(sizeString, 0);
    }
}

Related

1. readableSize(long size, DecimalFormat format)
2. renderNumber(int n, int size)
3. size(long l)
4. size2human(long size)
5. sizeRenderer(String value)
6. toByte(String size)
7. toHumanReadableSize(final long pSizeInBytes)
8. toReadable(long size)