1. Project Clover database Tue Dec 20 2016 21:24:09 CET
  2. Package org.xwiki.crypto.internal.encoder

File InternalBinaryStringEncoder.java

 

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Classes

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InternalBinaryStringEncoder 31 0 - 0 0
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1    /*
2    * See the NOTICE file distributed with this work for additional
3    * information regarding copyright ownership.
4    *
5    * This is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU Lesser General Public License as
7    * published by the Free Software Foundation; either version 2.1 of
8    * the License, or (at your option) any later version.
9    *
10    * This software is distributed in the hope that it will be useful,
11    * but WITHOUT ANY WARRANTY; without even the implied warranty of
12    * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13    * Lesser General Public License for more details.
14    *
15    * You should have received a copy of the GNU Lesser General Public
16    * License along with this software; if not, write to the Free
17    * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18    * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
19    */
20    package org.xwiki.crypto.internal.encoder;
21   
22    import java.io.IOException;
23    import java.io.OutputStream;
24   
25    /**
26    * Encode and decode byte arrays (typically from binary to 7-bit ASCII encodings).
27    *
28    * @version $Id: a78ca03129e2680fd573a29a723276d8dce551a1 $
29    * @since 5.4M1
30    */
 
31    public interface InternalBinaryStringEncoder
32    {
33    /**
34    * Encode the given buffer area to the given output stream.
35    *
36    * @param buffer buffer to encode.
37    * @param offset offset in the buffer to start from.
38    * @param length len of the area to encode from the buffer.
39    * @param outputStream the output stream to write data to.
40    * @return the number bytes written to the output stream.
41    * @throws IOException on error.
42    */
43    int encode(byte[] buffer, int offset, int length, OutputStream outputStream) throws IOException;
44   
45    /**
46    * Decode the given buffer area to the given input stream.
47    *
48    * @param buffer buffer to decode.
49    * @param offset offset in the buffer to start from.
50    * @param length len of the area to decode from the buffer.
51    * @param outputStream the output stream to write data to.
52    * @return the number bytes written to the output stream.
53    * @throws IOException on error.
54    */
55    int decode(byte[] buffer, int offset, int length, OutputStream outputStream) throws IOException;
56   
57    /**
58    * Check is the given byte is a valid byte of encoded data.
59    *
60    * @param b byte to check.
61    * @return true if the byte is a valid encoded data.
62    */
63    boolean isValidEncoding(byte b);
64   
65    /**
66    * @return the number of bytes of binary data that should be encoded together during progressive encoding.
67    */
68    int getEncodingBlockSize();
69   
70    /**
71    * @return the number of bytes of string data that should be decoded together during progressive decoding.
72    */
73    int getDecodingBlockSize();
74    }