Mercurial > jdk8-mips64-public > jaxws / file comparison
comparison: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/ASCIIUtility.java
src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/ASCIIUtility.java
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| 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 /* | |
| 27 * @(#)ASCIIUtility.java 1.9 02/03/27 | |
| 28 */ | |
| 29 | |
| 30 | |
| 31 package com.sun.xml.internal.messaging.saaj.packaging.mime.util; | |
| 32 | |
| 33 import com.sun.xml.internal.messaging.saaj.util.ByteOutputStream; | |
| 34 | |
| 35 import java.io.*; | |
| 36 | |
| 37 public class ASCIIUtility { | |
| 38 | |
| 39 // Private constructor so that this class is not instantiated | |
| 40 private ASCIIUtility() { } | |
| 41 | |
| 42 | |
| 43 /** | |
| 44 * Convert the bytes within the specified range of the given byte | |
| 45 * array into a signed integer in the given radix . The range extends | |
| 46 * from <code>start</code> till, but not including <code>end</code>. <p> | |
| 47 * | |
| 48 * Based on java.lang.Integer.parseInt() | |
| 49 */ | |
| 50 public static int parseInt(byte[] b, int start, int end, int radix) | |
| 51 throws NumberFormatException { | |
| 52 if (b == null) | |
| 53 throw new NumberFormatException("null"); | |
| 54 | |
| 55 int result = 0; | |
| 56 boolean negative = false; | |
| 57 int i = start; | |
| 58 int limit; | |
| 59 int multmin; | |
| 60 int digit; | |
| 61 | |
| 62 if (end > start) { | |
| 63 if (b[i] == '-') { | |
| 64 negative = true; | |
| 65 limit = Integer.MIN_VALUE; | |
| 66 i++; | |
| 67 } else { | |
| 68 limit = -Integer.MAX_VALUE; | |
| 69 } | |
| 70 multmin = limit / radix; | |
| 71 if (i < end) { | |
| 72 digit = Character.digit((char)b[i++], radix); | |
| 73 if (digit < 0) { | |
| 74 throw new NumberFormatException( | |
| 75 "illegal number: " + toString(b, start, end) | |
| 76 ); | |
| 77 } else { | |
| 78 result = -digit; | |
| 79 } | |
| 80 } | |
| 81 while (i < end) { | |
| 82 // Accumulating negatively avoids surprises near MAX_VALUE | |
| 83 digit = Character.digit((char)b[i++], radix); | |
| 84 if (digit < 0) { | |
| 85 throw new NumberFormatException("illegal number"); | |
| 86 } | |
| 87 if (result < multmin) { | |
| 88 throw new NumberFormatException("illegal number"); | |
| 89 } | |
| 90 result *= radix; | |
| 91 if (result < limit + digit) { | |
| 92 throw new NumberFormatException("illegal number"); | |
| 93 } | |
| 94 result -= digit; | |
| 95 } | |
| 96 } else { | |
| 97 throw new NumberFormatException("illegal number"); | |
| 98 } | |
| 99 if (negative) { | |
| 100 if (i > start + 1) { | |
| 101 return result; | |
| 102 } else { /* Only got "-" */ | |
| 103 throw new NumberFormatException("illegal number"); | |
| 104 } | |
| 105 } else { | |
| 106 return -result; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 /** | |
| 111 * Convert the bytes within the specified range of the given byte | |
| 112 * array into a String. The range extends from <code>start</code> | |
| 113 * till, but not including <code>end</code>. <p> | |
| 114 */ | |
| 115 public static String toString(byte[] b, int start, int end) { | |
| 116 int size = end - start; | |
| 117 char[] theChars = new char[size]; | |
| 118 | |
| 119 for (int i = 0, j = start; i < size; ) | |
| 120 theChars[i++] = (char)(b[j++]&0xff); | |
| 121 | |
| 122 return new String(theChars); | |
| 123 } | |
| 124 | |
| 125 public static byte[] getBytes(String s) { | |
| 126 char [] chars= s.toCharArray(); | |
| 127 int size = chars.length; | |
| 128 byte[] bytes = new byte[size]; | |
| 129 | |
| 130 for (int i = 0; i < size;) | |
| 131 bytes[i] = (byte) chars[i++]; | |
| 132 return bytes; | |
| 133 } | |
| 134 | |
| 135 /** | |
| 136 * | |
| 137 * @deprecated | |
| 138 * this is an expensive operation that require an additional | |
| 139 * buffer reallocation just to get the array of an exact size. | |
| 140 * Unless you absolutely need the exact size array, don't use this. | |
| 141 * Use {@link ByteOutputStream} and {@link ByteOutputStream#write(InputStream)}. | |
| 142 */ | |
| 143 public static byte[] getBytes(InputStream is) throws IOException { | |
| 144 ByteOutputStream bos = new ByteOutputStream(); | |
| 145 try { | |
| 146 bos.write(is); | |
| 147 } finally { | |
| 148 is.close(); | |
| 149 } | |
| 150 return bos.toByteArray(); | |
| 151 } | |
| 152 } |
