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src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/ASCIIUtility.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/packaging/mime/util/ASCIIUtility.java

Thu, 31 Aug 2017 15:18:52 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:18:52 +0800

changeset 637

9c07ef4934dd

parent 368

0989ad8c0860

parent 0

373ffda63c9a

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	/*
aoqi@0	27	* @(#)ASCIIUtility.java 1.9 02/03/27
aoqi@0	28	*/
aoqi@0	29
aoqi@0	30
aoqi@0	31	package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
aoqi@0	32
aoqi@0	33	import com.sun.xml.internal.messaging.saaj.util.ByteOutputStream;
aoqi@0	34
aoqi@0	35	import java.io.*;
aoqi@0	36
aoqi@0	37	public class ASCIIUtility {
aoqi@0	38
aoqi@0	39	// Private constructor so that this class is not instantiated
aoqi@0	40	private ASCIIUtility() { }
aoqi@0	41
aoqi@0	42
aoqi@0	43	/**
aoqi@0	44	* Convert the bytes within the specified range of the given byte
aoqi@0	45	* array into a signed integer in the given radix . The range extends
aoqi@0	46	* from <code>start</code> till, but not including <code>end</code>. <p>
aoqi@0	47	*
aoqi@0	48	* Based on java.lang.Integer.parseInt()
aoqi@0	49	*/
aoqi@0	50	public static int parseInt(byte[] b, int start, int end, int radix)
aoqi@0	51	throws NumberFormatException {
aoqi@0	52	if (b == null)
aoqi@0	53	throw new NumberFormatException("null");
aoqi@0	54
aoqi@0	55	int result = 0;
aoqi@0	56	boolean negative = false;
aoqi@0	57	int i = start;
aoqi@0	58	int limit;
aoqi@0	59	int multmin;
aoqi@0	60	int digit;
aoqi@0	61
aoqi@0	62	if (end > start) {
aoqi@0	63	if (b[i] == '-') {
aoqi@0	64	negative = true;
aoqi@0	65	limit = Integer.MIN_VALUE;
aoqi@0	66	i++;
aoqi@0	67	} else {
aoqi@0	68	limit = -Integer.MAX_VALUE;
aoqi@0	69	}
aoqi@0	70	multmin = limit / radix;
aoqi@0	71	if (i < end) {
aoqi@0	72	digit = Character.digit((char)b[i++], radix);
aoqi@0	73	if (digit < 0) {
aoqi@0	74	throw new NumberFormatException(
aoqi@0	75	"illegal number: " + toString(b, start, end)
aoqi@0	76	);
aoqi@0	77	} else {
aoqi@0	78	result = -digit;
aoqi@0	79	}
aoqi@0	80	}
aoqi@0	81	while (i < end) {
aoqi@0	82	// Accumulating negatively avoids surprises near MAX_VALUE
aoqi@0	83	digit = Character.digit((char)b[i++], radix);
aoqi@0	84	if (digit < 0) {
aoqi@0	85	throw new NumberFormatException("illegal number");
aoqi@0	86	}
aoqi@0	87	if (result < multmin) {
aoqi@0	88	throw new NumberFormatException("illegal number");
aoqi@0	89	}
aoqi@0	90	result *= radix;
aoqi@0	91	if (result < limit + digit) {
aoqi@0	92	throw new NumberFormatException("illegal number");
aoqi@0	93	}
aoqi@0	94	result -= digit;
aoqi@0	95	}
aoqi@0	96	} else {
aoqi@0	97	throw new NumberFormatException("illegal number");
aoqi@0	98	}
aoqi@0	99	if (negative) {
aoqi@0	100	if (i > start + 1) {
aoqi@0	101	return result;
aoqi@0	102	} else { /* Only got "-" */
aoqi@0	103	throw new NumberFormatException("illegal number");
aoqi@0	104	}
aoqi@0	105	} else {
aoqi@0	106	return -result;
aoqi@0	107	}
aoqi@0	108	}
aoqi@0	109
aoqi@0	110	/**
aoqi@0	111	* Convert the bytes within the specified range of the given byte
aoqi@0	112	* array into a String. The range extends from <code>start</code>
aoqi@0	113	* till, but not including <code>end</code>. <p>
aoqi@0	114	*/
aoqi@0	115	public static String toString(byte[] b, int start, int end) {
aoqi@0	116	int size = end - start;
aoqi@0	117	char[] theChars = new char[size];
aoqi@0	118
aoqi@0	119	for (int i = 0, j = start; i < size; )
aoqi@0	120	theChars[i++] = (char)(b[j++]&0xff);
aoqi@0	121
aoqi@0	122	return new String(theChars);
aoqi@0	123	}
aoqi@0	124
aoqi@0	125	public static byte[] getBytes(String s) {
aoqi@0	126	char [] chars= s.toCharArray();
aoqi@0	127	int size = chars.length;
aoqi@0	128	byte[] bytes = new byte[size];
aoqi@0	129
aoqi@0	130	for (int i = 0; i < size;)
aoqi@0	131	bytes[i] = (byte) chars[i++];
aoqi@0	132	return bytes;
aoqi@0	133	}
aoqi@0	134
aoqi@0	135	/**
aoqi@0	136	*
aoqi@0	137	* @deprecated
aoqi@0	138	* this is an expensive operation that require an additional
aoqi@0	139	* buffer reallocation just to get the array of an exact size.
aoqi@0	140	* Unless you absolutely need the exact size array, don't use this.
aoqi@0	141	* Use {@link ByteOutputStream} and {@link ByteOutputStream#write(InputStream)}.
aoqi@0	142	*/
aoqi@0	143	public static byte[] getBytes(InputStream is) throws IOException {
aoqi@0	144	ByteOutputStream bos = new ByteOutputStream();
aoqi@0	145	try {
aoqi@0	146	bos.write(is);
aoqi@0	147	} finally {
aoqi@0	148	is.close();
aoqi@0	149	}
aoqi@0	150	return bos.toByteArray();
aoqi@0	151	}
aoqi@0	152	}