1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
/** |
4
|
|
|
* Base class for configurations. Contains methods for accessing RDF |
5
|
|
|
* Resources, handling literals and booleans. |
6
|
|
|
*/ |
7
|
|
|
abstract class BaseConfig extends DataObject |
8
|
|
|
{ |
9
|
|
|
/** |
10
|
|
|
* Returns a boolean value based on a literal value from the config.ttl configuration. |
11
|
|
|
* @param string $property the property to query |
12
|
|
|
* @param boolean $default the default value if the value is not set in configuration |
13
|
|
|
* @return boolean the boolean value for the given property, or the default value if not found |
14
|
|
|
*/ |
15
|
|
|
protected function getBoolean($property, $default = false) |
16
|
|
|
{ |
17
|
|
|
$val = $this->getResource()->getLiteral($property); |
18
|
|
|
if ($val) { |
|
|
|
|
19
|
|
|
return filter_var($val->getValue(), FILTER_VALIDATE_BOOLEAN); |
20
|
|
|
} |
21
|
|
|
return $default; |
22
|
|
|
} |
23
|
|
|
|
24
|
|
|
/** |
25
|
|
|
* Returns an array of URIs based on a property from the config.ttl configuration. |
26
|
|
|
* @param string $property the property to query |
27
|
|
|
* @return string[] List of URIs |
28
|
|
|
*/ |
29
|
|
|
protected function getResources($property) |
30
|
|
|
{ |
31
|
|
|
$resources = $this->getResource()->allResources($property); |
32
|
|
|
$ret = array(); |
33
|
|
|
foreach ($resources as $res) { |
34
|
|
|
$ret[] = $res->getURI(); |
35
|
|
|
} |
36
|
|
|
return $ret; |
37
|
|
|
} |
38
|
|
|
|
39
|
|
|
/** |
40
|
|
|
* Returns a string value based on a literal value from the config.ttl configuration. |
41
|
|
|
* @param string $property the property to query |
42
|
|
|
* @param string $default default value |
43
|
|
|
* @param string $lang preferred language for the literal |
44
|
|
|
* @return string string value for the given property, or the default value if not found |
45
|
|
|
*/ |
46
|
|
|
protected function getLiteral($property, $default = null, $lang = null) |
47
|
|
|
{ |
48
|
|
|
if (!isset($lang)) { |
49
|
|
|
$lang = $this->getLang(); |
50
|
|
|
} |
51
|
|
|
|
52
|
|
|
$literal = $this->getResource()->getLiteral($property, $lang); |
53
|
|
|
if ($literal) { |
|
|
|
|
54
|
|
|
return $literal->getValue(); |
|
|
|
|
55
|
|
|
} |
56
|
|
|
|
57
|
|
|
// not found with selected language, try to find one without a language tag |
58
|
|
|
foreach ($this->getResource()->allLiterals($property) as $literal) { |
59
|
|
|
if ($literal->getLang() === null) { |
60
|
|
|
return $literal->getValue(); |
61
|
|
|
} |
62
|
|
|
} |
63
|
|
|
|
64
|
|
|
// not found, return the default value |
65
|
|
|
return $default; |
66
|
|
|
} |
67
|
|
|
|
68
|
|
|
} |
69
|
|
|
|