Mercurial > hg > blitz_condensed
annotate src/org/dancres/util/NumUtil.java @ 28:4b2f23b6feca
Add a schema compatibility check to indexer that parallels storage.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 12 Jun 2010 10:11:15 +0100 |
parents | 3dc0c5604566 |
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0
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1 package org.dancres.util; |
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2 |
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3 import java.util.regex.Matcher; |
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4 import java.util.regex.Pattern; |
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5 |
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6 /** |
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7 */ |
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8 public class NumUtil { |
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9 private static final String GB = "g"; |
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10 private static final String MB = "m"; |
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11 private static final String KB = "k"; |
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12 |
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13 public static long convertToBytes(String theDbCacheSizeValue) |
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14 throws IllegalArgumentException { |
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15 |
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16 String format = "\\d\\s*[" + GB + MB + KB + "]?"; |
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17 |
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18 // check format |
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19 // |
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20 Pattern pattern = Pattern.compile(format, Pattern.CASE_INSENSITIVE); |
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21 Matcher matcher = pattern.matcher(theDbCacheSizeValue); |
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22 if (!matcher.find()) |
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23 throw new IllegalArgumentException("Could not parse " + |
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24 theDbCacheSizeValue + |
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25 ". Should be of the form '0-9[k|m|g]'"); |
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26 |
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27 // grab the number piece |
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28 // |
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29 String splitOnUOM = "[kKmMgG]"; |
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30 String[] splitOnUOMArr = theDbCacheSizeValue.split(splitOnUOM); |
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31 long size = Long.parseLong(splitOnUOMArr[0].trim()); |
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32 |
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33 // grab the unit of measure piece |
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34 // |
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35 String uom = theDbCacheSizeValue.substring(splitOnUOMArr[0].length()); |
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36 if (uom.length() > 0) |
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37 uom = uom.substring(0, 1); |
3dc0c5604566
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Dan Creswell <dan.creswell@gmail.com>
parents:
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38 |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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39 // convert the size to bytes |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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40 // |
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41 long sizeInBytes = size; |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
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42 if (KB.equalsIgnoreCase(uom)) |
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43 sizeInBytes = size * 1024; |
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44 else if (MB.equalsIgnoreCase(uom)) |
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45 sizeInBytes = size * 1024 * 1024; |
3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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46 else if (GB.equalsIgnoreCase(uom)) |
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47 sizeInBytes = size * 1024 * 1024 * 1024; |
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parents:
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48 else |
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49 sizeInBytes = size; |
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Dan Creswell <dan.creswell@gmail.com>
parents:
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50 |
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51 return sizeInBytes; |
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52 } |
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53 |
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54 public static void main(String anArgs[]) throws Exception { |
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55 System.out.println(convertToBytes(anArgs[0])); |
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56 } |
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57 } |