1 | /* |
2 | * Copyright (c) 2001-2009, Jean Tessier |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * * Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * |
12 | * * Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * * Neither the name of Jean Tessier nor the names of his contributors |
17 | * may be used to endorse or promote products derived from this software |
18 | * without specific prior written permission. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR |
24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | package com.jeantessier.text; |
34 | |
35 | import java.io.*; |
36 | |
37 | public final class Hex { |
38 | private Hex() { |
39 | // Do nothing |
40 | } |
41 | |
42 | public static void print(PrintStream out, byte[] bytes) { |
43 | for (byte b : bytes) { |
44 | print(out, b); |
45 | } |
46 | } |
47 | |
48 | public static void print(PrintWriter out, byte[] bytes) { |
49 | for (byte b : bytes) { |
50 | print(out, b); |
51 | } |
52 | } |
53 | |
54 | public static void print(PrintStream out, byte b) { |
55 | int highBits = (b & 0xF0) >> 4; |
56 | int lowBits = (b & 0x0F); |
57 | |
58 | print(out, highBits); |
59 | print(out, lowBits); |
60 | } |
61 | |
62 | public static void print(PrintWriter out, byte b) { |
63 | int highBits = (b & 0xF0) >> 4; |
64 | int lowBits = (b & 0x0F); |
65 | |
66 | print(out, highBits); |
67 | print(out, lowBits); |
68 | } |
69 | |
70 | public static void print(PrintStream out, int n) { |
71 | out.print(toHexChar(n)); |
72 | } |
73 | |
74 | public static void print(PrintWriter out, int n) { |
75 | out.print(toHexChar(n)); |
76 | } |
77 | |
78 | public static String toString(byte[] bytes) { |
79 | StringBuffer result = new StringBuffer(); |
80 | toString(bytes, result); |
81 | return result.toString(); |
82 | } |
83 | |
84 | private static void toString(byte[] bytes, StringBuffer buffer) { |
85 | for (byte b : bytes) { |
86 | toString(b, buffer); |
87 | } |
88 | } |
89 | |
90 | public static void toString(byte b, StringBuffer buffer) { |
91 | int highBits = (b & 0xF0) >> 4; |
92 | int lowBits = (b & 0x0F); |
93 | |
94 | toString(highBits, buffer); |
95 | toString(lowBits, buffer); |
96 | } |
97 | |
98 | private static void toString(int n, StringBuffer buffer) { |
99 | buffer.append(toHexChar(n)); |
100 | } |
101 | |
102 | public static String toHexChar(int n) { |
103 | return Integer.toHexString(n).toUpperCase(); |
104 | } |
105 | } |