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java.lang.Objectorg.apache.tomcat.util.buf.HexUtils
Library of utility methods useful in dealing with converting byte arrays to and from strings of hexadecimal digits. Code from Ajp11, from Apache's JServ.
| Field Summary | |
static int[] |
DEC
Table for HEX to DEC byte translation. |
static byte[] |
HEX
Table for DEC to HEX byte translation. |
| Constructor Summary | |
HexUtils()
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| Method Summary | |
static java.lang.String |
convert(byte[] bytes)
Convert a byte array into a printable format containing a String of hexadecimal digit characters (two per byte). |
static byte[] |
convert(java.lang.String digits)
Convert a String of hexadecimal digits into the corresponding byte array by encoding each two hexadecimal digits as a byte. |
static int |
convert2Int(byte[] hex)
Convert 4 hex digits to an int, and return the number of converted bytes. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
public static final int[] DEC
public static final byte[] HEX
| Constructor Detail |
public HexUtils()
| Method Detail |
public static byte[] convert(java.lang.String digits)
digits - Hexadecimal digits representation
java.lang.IllegalArgumentException - if an invalid hexadecimal digit
is found, or the input string contains an odd number of hexadecimal
digitspublic static java.lang.String convert(byte[] bytes)
bytes - Byte array representationpublic static int convert2Int(byte[] hex)
hex - Byte array containing exactly four hexadecimal digits
java.lang.IllegalArgumentException - if an invalid hexadecimal digit
is included
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