Mercurial > jdk8-mips64-public > jaxws / file comparison

comparison: src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/ASCIIUtility.java

src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/ASCIIUtility.java

changeset 368
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parent 0
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equal deleted inserted replaced
366:8c0b6bccfe47 368:0989ad8c0860
1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /* FROM mail.jar */
27 package com.sun.xml.internal.org.jvnet.mimepull;
28
29 final class ASCIIUtility {
30
31 // Private constructor so that this class is not instantiated
32 private ASCIIUtility() { }
33
34 /**
35 * Convert the bytes within the specified range of the given byte
36 * array into a signed integer in the given radix . The range extends
37 * from <code>start</code> till, but not including <code>end</code>. <p>
38 *
39 * Based on java.lang.Integer.parseInt()
40 */
41 public static int parseInt(byte[] b, int start, int end, int radix)
42 throws NumberFormatException {
43 if (b == null) {
44 throw new NumberFormatException("null");
45 }
46
47 int result = 0;
48 boolean negative = false;
49 int i = start;
50 int limit;
51 int multmin;
52 int digit;
53
54 if (end > start) {
55 if (b[i] == '-') {
56 negative = true;
57 limit = Integer.MIN_VALUE;
58 i++;
59 } else {
60 limit = -Integer.MAX_VALUE;
61 }
62 multmin = limit / radix;
63 if (i < end) {
64 digit = Character.digit((char)b[i++], radix);
65 if (digit < 0) {
66 throw new NumberFormatException(
67 "illegal number: " + toString(b, start, end)
68 );
69 } else {
70 result = -digit;
71 }
72 }
73 while (i < end) {
74 // Accumulating negatively avoids surprises near MAX_VALUE
75 digit = Character.digit((char)b[i++], radix);
76 if (digit < 0) {
77 throw new NumberFormatException("illegal number");
78 }
79 if (result < multmin) {
80 throw new NumberFormatException("illegal number");
81 }
82 result *= radix;
83 if (result < limit + digit) {
84 throw new NumberFormatException("illegal number");
85 }
86 result -= digit;
87 }
88 } else {
89 throw new NumberFormatException("illegal number");
90 }
91 if (negative) {
92 if (i > start + 1) {
93 return result;
94 } else { /* Only got "-" */
95 throw new NumberFormatException("illegal number");
96 }
97 } else {
98 return -result;
99 }
100 }
101
102 /**
103 * Convert the bytes within the specified range of the given byte
104 * array into a String. The range extends from <code>start</code>
105 * till, but not including <code>end</code>. <p>
106 */
107 public static String toString(byte[] b, int start, int end) {
108 int size = end - start;
109 char[] theChars = new char[size];
110
111 for (int i = 0, j = start; i < size; ) {
112 theChars[i++] = (char)(b[j++]&0xff);
113 }
114
115 return new String(theChars);
116 }
117
118 }

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