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src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/ASCIIUtility.java@373ffda63c9a (annotated)

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

Wed, 27 Apr 2016 01:27:09 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:27:09 +0800

changeset 0

373ffda63c9a

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/jaxws/
changeset: 657:d47a47f961ee
tag: jdk8u25-b17

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