1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/staxex/Base64Encoder.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,101 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.org.jvnet.staxex;
1.30 +
1.31 +/**
1.32 + * @author Kohsuke Kawaguchi
1.33 + */
1.34 +class Base64Encoder {
1.35 + private static final char[] encodeMap = initEncodeMap();
1.36 +
1.37 + private static char[] initEncodeMap() {
1.38 + char[] map = new char[64];
1.39 + int i;
1.40 + for( i= 0; i<26; i++ ) map[i] = (char)('A'+i);
1.41 + for( i=26; i<52; i++ ) map[i] = (char)('a'+(i-26));
1.42 + for( i=52; i<62; i++ ) map[i] = (char)('0'+(i-52));
1.43 + map[62] = '+';
1.44 + map[63] = '/';
1.45 +
1.46 + return map;
1.47 + }
1.48 +
1.49 + public static char encode( int i ) {
1.50 + return encodeMap[i&0x3F];
1.51 + }
1.52 +
1.53 + public static byte encodeByte( int i ) {
1.54 + return (byte)encodeMap[i&0x3F];
1.55 + }
1.56 +
1.57 + public static String print(byte[] input, int offset, int len) {
1.58 + char[] buf = new char[((len+2)/3)*4];
1.59 + int ptr = print(input,offset,len,buf,0);
1.60 + assert ptr==buf.length;
1.61 + return new String(buf);
1.62 + }
1.63 +
1.64 + /**
1.65 + * Encodes a byte array into a char array by doing base64 encoding.
1.66 + *
1.67 + * The caller must supply a big enough buffer.
1.68 + *
1.69 + * @return
1.70 + * the value of {@code ptr+((len+2)/3)*4}, which is the new offset
1.71 + * in the output buffer where the further bytes should be placed.
1.72 + */
1.73 + public static int print(byte[] input, int offset, int len, char[] buf, int ptr) {
1.74 + for( int i=offset; i<len; i+=3 ) {
1.75 + switch( len-i ) {
1.76 + case 1:
1.77 + buf[ptr++] = encode(input[i]>>2);
1.78 + buf[ptr++] = encode(((input[i])&0x3)<<4);
1.79 + buf[ptr++] = '=';
1.80 + buf[ptr++] = '=';
1.81 + break;
1.82 + case 2:
1.83 + buf[ptr++] = encode(input[i]>>2);
1.84 + buf[ptr++] = encode(
1.85 + ((input[i]&0x3)<<4) |
1.86 + ((input[i+1]>>4)&0xF));
1.87 + buf[ptr++] = encode((input[i+1]&0xF)<<2);
1.88 + buf[ptr++] = '=';
1.89 + break;
1.90 + default:
1.91 + buf[ptr++] = encode(input[i]>>2);
1.92 + buf[ptr++] = encode(
1.93 + ((input[i]&0x3)<<4) |
1.94 + ((input[i+1]>>4)&0xF));
1.95 + buf[ptr++] = encode(
1.96 + ((input[i+1]&0xF)<<2)|
1.97 + ((input[i+2]>>6)&0x3));
1.98 + buf[ptr++] = encode(input[i+2]&0x3F);
1.99 + break;
1.100 + }
1.101 + }
1.102 + return ptr;
1.103 + }
1.104 +}
