ohair@286: /*
ohair@286:  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
ohair@286:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286:  *
ohair@286:  * This code is free software; you can redistribute it and/or modify it
ohair@286:  * under the terms of the GNU General Public License version 2 only, as
ohair@286:  * published by the Free Software Foundation.  Oracle designates this
ohair@286:  * particular file as subject to the "Classpath" exception as provided
ohair@286:  * by Oracle in the LICENSE file that accompanied this code.
ohair@286:  *
ohair@286:  * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
ohair@286:  * version 2 for more details (a copy is included in the LICENSE file that
ohair@286:  * accompanied this code).
ohair@286:  *
ohair@286:  * You should have received a copy of the GNU General Public License version
ohair@286:  * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286:  *
ohair@286:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286:  * or visit www.oracle.com if you need additional information or have any
ohair@286:  * questions.
ohair@286:  */
ohair@286: 
ohair@286: package com.sun.xml.internal.ws.util;
ohair@286: 
ohair@286: import java.io.InputStream;
ohair@286: import java.io.IOException;
ohair@286: import java.io.ByteArrayInputStream;
ohair@286: import java.io.ByteArrayOutputStream;
ohair@286: import java.io.OutputStream;
ohair@286: 
ohair@286: /**
ohair@286:  * Copied from mail.jar.
ohair@286:  */
ohair@286: public class ASCIIUtility {
ohair@286:     // Private constructor so that this class is not instantiated
ohair@286:     private ASCIIUtility() { }
ohair@286: 
ohair@286: 
ohair@286:     /**
ohair@286:      * Convert the bytes within the specified range of the given byte
ohair@286:      * array into a signed integer in the given radix . The range extends
ohair@286:      * from <code>start</code> till, but not including <code>end</code>. <p>
ohair@286:      *
ohair@286:      * Based on java.lang.Integer.parseInt()
ohair@286:      */
ohair@286:     public static int parseInt(byte[] b, int start, int end, int radix)
ohair@286:         throws NumberFormatException {
ohair@286:         if (b == null)
ohair@286:             throw new NumberFormatException("null");
ohair@286: 
ohair@286:         int result = 0;
ohair@286:         boolean negative = false;
ohair@286:         int i = start;
ohair@286:         int limit;
ohair@286:         int multmin;
ohair@286:         int digit;
ohair@286: 
ohair@286:         if (end > start) {
ohair@286:             if (b[i] == '-') {
ohair@286:                 negative = true;
ohair@286:                 limit = Integer.MIN_VALUE;
ohair@286:                 i++;
ohair@286:             } else {
ohair@286:                 limit = -Integer.MAX_VALUE;
ohair@286:             }
ohair@286:             multmin = limit / radix;
ohair@286:             if (i < end) {
ohair@286:                 digit = Character.digit((char)b[i++], radix);
ohair@286:                 if (digit < 0) {
ohair@286:                     throw new NumberFormatException(
ohair@286:                     "illegal number: " + toString(b, start, end)
ohair@286:                     );
ohair@286:                 } else {
ohair@286:                     result = -digit;
ohair@286:                 }
ohair@286:             }
ohair@286:             while (i < end) {
ohair@286:                 // Accumulating negatively avoids surprises near MAX_VALUE
ohair@286:                 digit = Character.digit((char)b[i++], radix);
ohair@286:                 if (digit < 0) {
ohair@286:                     throw new NumberFormatException("illegal number");
ohair@286:                 }
ohair@286:                 if (result < multmin) {
ohair@286:                     throw new NumberFormatException("illegal number");
ohair@286:                 }
ohair@286:                 result *= radix;
ohair@286:                 if (result < limit + digit) {
ohair@286:                     throw new NumberFormatException("illegal number");
ohair@286:                 }
ohair@286:                 result -= digit;
ohair@286:             }
ohair@286:         } else {
ohair@286:             throw new NumberFormatException("illegal number");
ohair@286:         }
ohair@286:         if (negative) {
ohair@286:             if (i > start + 1) {
ohair@286:                 return result;
ohair@286:             } else {    /* Only got "-" */
ohair@286:                 throw new NumberFormatException("illegal number");
ohair@286:             }
ohair@286:         } else {
ohair@286:             return -result;
ohair@286:         }
ohair@286:     }
ohair@286: 
ohair@286:     /**
ohair@286:      * Convert the bytes within the specified range of the given byte
ohair@286:      * array into a String. The range extends from <code>start</code>
ohair@286:      * till, but not including <code>end</code>. <p>
ohair@286:      */
ohair@286:     public static String toString(byte[] b, int start, int end) {
ohair@286:         int size = end - start;
ohair@286:         char[] theChars = new char[size];
ohair@286: 
ohair@286:         for (int i = 0, j = start; i < size; )
ohair@286:             theChars[i++] = (char)(b[j++]&0xff);
ohair@286: 
ohair@286:         return new String(theChars);
ohair@286:     }
ohair@286: 
ohair@286:     public static byte[] getBytes(String s) {
ohair@286:         char [] chars= s.toCharArray();
ohair@286:         int size = chars.length;
ohair@286:         byte[] bytes = new byte[size];
ohair@286: 
ohair@286:         for (int i = 0; i < size;)
ohair@286:             bytes[i] = (byte) chars[i++];
ohair@286:         return bytes;
ohair@286:     }
ohair@286: 
ohair@286:     public static byte[] getBytes(InputStream is) throws IOException {
ohair@286:         ByteArrayBuffer bab = new ByteArrayBuffer();
ohair@286:         bab.write(is);
ohair@286:         return bab.toByteArray();
ohair@286:     }
ohair@286: 
ohair@286:     public static void copyStream(InputStream is, OutputStream out) throws IOException {
ohair@286:         int size = 1024;
ohair@286:         byte[] buf = new byte[size];
ohair@286:         int len;
ohair@286: 
ohair@286:         while ((len = is.read(buf, 0, size)) != -1)
ohair@286:             out.write(buf, 0, len);
ohair@286:     }
ohair@286: }