Newer
Older
Angie Byron
committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
<?php
/**
* EasyRdf
*
* LICENSE
*
* Copyright (c) 2009-2012 Nicholas J Humfrey. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package EasyRdf
* @copyright Copyright (c) 2009-2012 Nicholas J Humfrey
* @license http://www.opensource.org/licenses/bsd-license.php
* @version $Id$
*/
/**
* Class that represents an RDF Literal of datatype xsd:hexBinary
*
* @package EasyRdf
* @link http://www.w3.org/TR/xmlschema-2/#hexBinary
* @copyright Copyright (c) 2009-2012 Nicholas J Humfrey
* @license http://www.opensource.org/licenses/bsd-license.php
*/
class EasyRdf_Literal_HexBinary extends EasyRdf_Literal
{
/** Constructor for creating a new xsd:hexBinary literal
*
* @param mixed $value The value of the literal (already encoded as hexadecimal)
* @param string $lang Should be null (literals with a datatype can't have a language)
* @param string $datatype Optional datatype (default 'xsd:hexBinary')
* @return object EasyRdf_Literal_HexBinary
*/
public function __construct($value, $lang = null, $datatype = null)
{
// Normalise the canonical representation, as specified here:
// http://www.w3.org/TR/xmlschema-2/#hexBinary-canonical-repr
$value = strtoupper($value);
// Validate the data
if (preg_match("/[^A-F0-9]/", $value)) {
throw new InvalidArgumentException(
"Literal of type xsd:hexBinary contains non-hexadecimal characters"
);
}
parent::__construct(strtoupper($value), null, 'xsd:hexBinary');
}
/** Constructor for creating a new literal object from a binary blob
*
* @param string $binary The binary data
* @return object EasyRdf_Literal_HexBinary
*/
public static function fromBinary($binary)
{
return new self( bin2hex($binary) );
}
/** Decode the hexadecimal string into a binary blob
*
* @return string The binary blob
*/
public function toBinary()
{
return pack("H*", $this->value);
}
}
EasyRdf_Literal::setDatatypeMapping('xsd:hexBinary', 'EasyRdf_Literal_HexBinary');