| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.axiom.util.base64; |
| |
| // For internal use only |
| class Base64Constants { |
| static final byte[] S_BASE64CHAR = { 'A', 'B', 'C', 'D', 'E', 'F', |
| 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', |
| 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', |
| 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', |
| 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', |
| '6', '7', '8', '9', '+', '/' }; |
| |
| static final byte S_BASE64PAD = '='; |
| |
| /** |
| * Used in {@link #S_DECODETABLE} to indicate that a character is the padding character. |
| */ |
| static final byte PADDING = -1; |
| |
| /** |
| * Used in {@link #S_DECODETABLE} to indicate that a character is white space. |
| */ |
| static final byte WHITE_SPACE = -2; |
| |
| /** |
| * Used in {@link #S_DECODETABLE} to indicate that a character is invalid. |
| */ |
| static final byte INVALID = -3; |
| |
| static final byte[] S_DECODETABLE = new byte[128]; |
| |
| static { |
| for (int i = 0; i < S_DECODETABLE.length; i++) { |
| S_DECODETABLE[i] = INVALID; |
| } |
| for (int i = 0; i < S_BASE64CHAR.length; i++) { |
| // 0 to 63 |
| S_DECODETABLE[S_BASE64CHAR[i]] = (byte) i; |
| } |
| S_DECODETABLE[S_BASE64PAD] = PADDING; |
| // See http://www.w3.org/TR/2008/REC-xml-20081126/#white |
| S_DECODETABLE[' '] = WHITE_SPACE; |
| S_DECODETABLE['\t'] = WHITE_SPACE; |
| S_DECODETABLE['\r'] = WHITE_SPACE; |
| S_DECODETABLE['\n'] = WHITE_SPACE; |
| } |
| } |