1/* 2 * Copyright (c) 1997, 2013, 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 26package com.sun.xml.internal.ws.util; 27 28import java.io.InputStream; 29import java.io.IOException; 30import java.io.OutputStream; 31 32/** 33 * Copied from mail.jar. 34 */ 35public class ASCIIUtility { 36 // Private constructor so that this class is not instantiated 37 private ASCIIUtility() { } 38 39 40 /** 41 * Convert the bytes within the specified range of the given byte 42 * array into a signed integer in the given radix . The range extends 43 * from <code>start</code> till, but not including <code>end</code>. <p> 44 * 45 * Based on java.lang.Integer.parseInt() 46 */ 47 public static int parseInt(byte[] b, int start, int end, int radix) 48 throws NumberFormatException { 49 if (b == null) 50 throw new NumberFormatException("null"); 51 52 int result = 0; 53 boolean negative = false; 54 int i = start; 55 int limit; 56 int multmin; 57 int digit; 58 59 if (end > start) { 60 if (b[i] == '-') { 61 negative = true; 62 limit = Integer.MIN_VALUE; 63 i++; 64 } else { 65 limit = -Integer.MAX_VALUE; 66 } 67 multmin = limit / radix; 68 if (i < end) { 69 digit = Character.digit((char)b[i++], radix); 70 if (digit < 0) { 71 throw new NumberFormatException( 72 "illegal number: " + toString(b, start, end) 73 ); 74 } else { 75 result = -digit; 76 } 77 } 78 while (i < end) { 79 // Accumulating negatively avoids surprises near MAX_VALUE 80 digit = Character.digit((char)b[i++], radix); 81 if (digit < 0) { 82 throw new NumberFormatException("illegal number"); 83 } 84 if (result < multmin) { 85 throw new NumberFormatException("illegal number"); 86 } 87 result *= radix; 88 if (result < limit + digit) { 89 throw new NumberFormatException("illegal number"); 90 } 91 result -= digit; 92 } 93 } else { 94 throw new NumberFormatException("illegal number"); 95 } 96 if (negative) { 97 if (i > start + 1) { 98 return result; 99 } else { /* Only got "-" */ 100 throw new NumberFormatException("illegal number"); 101 } 102 } else { 103 return -result; 104 } 105 } 106 107 /** 108 * Convert the bytes within the specified range of the given byte 109 * array into a String. The range extends from <code>start</code> 110 * till, but not including <code>end</code>. <p> 111 */ 112 public static String toString(byte[] b, int start, int end) { 113 int size = end - start; 114 char[] theChars = new char[size]; 115 116 for (int i = 0, j = start; i < size; ) 117 theChars[i++] = (char)(b[j++]&0xff); 118 119 return new String(theChars); 120 } 121 122 public static void copyStream(InputStream is, OutputStream out) throws IOException { 123 int size = 1024; 124 byte[] buf = new byte[size]; 125 int len; 126 127 while ((len = is.read(buf, 0, size)) != -1) 128 out.write(buf, 0, len); 129 } 130} 131