| /* |
| * Copyright (c) 2004, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| * THIS FILE WAS MODIFIED BY SUN MICROSYSTEMS, INC. |
| */ |
| |
| package com.sun.xml.internal.fastinfoset.algorithm; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import com.sun.xml.internal.org.jvnet.fastinfoset.EncodingAlgorithmException; |
| import com.sun.xml.internal.fastinfoset.CommonResourceBundle; |
| |
| public class HexadecimalEncodingAlgorithm extends BuiltInEncodingAlgorithm { |
| private static final char NIBBLE_TO_HEXADECIMAL_TABLE[] = |
| { '0','1','2','3','4','5','6','7', |
| '8','9','A','B','C','D','E','F' }; |
| |
| private static final int HEXADECIMAL_TO_NIBBLE_TABLE[] = { |
| /*'0'*/ 0, |
| /*'1'*/ 1, |
| /*'2'*/ 2, |
| /*'3'*/ 3, |
| /*'4'*/ 4, |
| /*'5'*/ 5, |
| /*'6'*/ 6, |
| /*'7'*/ 7, |
| /*'8'*/ 8, |
| /*'9'*/ 9, -1, -1, -1, -1, -1, -1, -1, |
| /*'A'*/ 10, |
| /*'B'*/ 11, |
| /*'C'*/ 12, |
| /*'D'*/ 13, |
| /*'E'*/ 14, |
| /*'F'*/ 15, |
| /*'G'-'Z'*/-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, |
| /*'[' - '`'*/ -1, -1, -1, -1, -1, -1, |
| /*'a'*/ 10, |
| /*'b'*/ 11, |
| /*'c'*/ 12, |
| /*'d'*/ 13, |
| /*'e'*/ 14, |
| /*'f'*/ 15 }; |
| |
| public final Object decodeFromBytes(byte[] b, int start, int length) throws EncodingAlgorithmException { |
| final byte[] data = new byte[length]; |
| System.arraycopy(b, start, data, 0, length); |
| return data; |
| } |
| |
| public final Object decodeFromInputStream(InputStream s) throws IOException { |
| throw new UnsupportedOperationException(CommonResourceBundle.getInstance().getString("message.notImplemented")); |
| } |
| |
| |
| public void encodeToOutputStream(Object data, OutputStream s) throws IOException { |
| if (!(data instanceof byte[])) { |
| throw new IllegalArgumentException(CommonResourceBundle.getInstance().getString("message.dataNotByteArray")); |
| } |
| |
| s.write((byte[])data); |
| } |
| |
| public final Object convertFromCharacters(char[] ch, int start, int length) { |
| if (length == 0) { |
| return new byte[0]; |
| } |
| |
| StringBuilder encodedValue = removeWhitespace(ch, start, length); |
| int encodedLength = encodedValue.length(); |
| if (encodedLength == 0) { |
| return new byte[0]; |
| } |
| |
| int valueLength = encodedValue.length() / 2; |
| byte[] value = new byte[valueLength]; |
| |
| int encodedIdx = 0; |
| for (int i = 0; i < valueLength; ++i) { |
| int nibble1 = HEXADECIMAL_TO_NIBBLE_TABLE[encodedValue.charAt(encodedIdx++) - '0']; |
| int nibble2 = HEXADECIMAL_TO_NIBBLE_TABLE[encodedValue.charAt(encodedIdx++) - '0']; |
| value[i] = (byte) ((nibble1 << 4) | nibble2); |
| } |
| |
| return value; |
| } |
| |
| public final void convertToCharacters(Object data, StringBuffer s) { |
| if (data == null) { |
| return; |
| } |
| final byte[] value = (byte[]) data; |
| if (value.length == 0) { |
| return; |
| } |
| |
| s.ensureCapacity(value.length * 2); |
| for (int i = 0; i < value.length; ++i) { |
| s.append(NIBBLE_TO_HEXADECIMAL_TABLE[(value[i] >>> 4) & 0xf]); |
| s.append(NIBBLE_TO_HEXADECIMAL_TABLE[value[i] & 0xf]); |
| } |
| } |
| |
| |
| |
| public final int getPrimtiveLengthFromOctetLength(int octetLength) throws EncodingAlgorithmException { |
| return octetLength * 2; |
| } |
| |
| public int getOctetLengthFromPrimitiveLength(int primitiveLength) { |
| return primitiveLength / 2; |
| } |
| |
| public final void encodeToBytes(Object array, int astart, int alength, byte[] b, int start) { |
| System.arraycopy((byte[])array, astart, b, start, alength); |
| } |
| } |