blob: 107c6b3b335d523e886886e38708ed93f4ac08bf (
plain)
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
<?php
namespace SMW\SQLStore\QueryEngine;
use RuntimeException;
use SMW\Query\Parser as QueryParser;
use SMWQuery as Query;
/**
* @license GNU GPL v2+
* @since 2.2
*
* @author mwjames
*/
class ConceptQuerySegmentBuilder {
/**
* @var QuerySegmentListBuilder
*/
private $querySegmentListBuilder;
/**
* @var QuerySegmentListProcessor
*/
private $querySegmentListProcessor;
/**
* @var QueryParser
*/
private $queryParser;
/**
* @since 2.2
*
* @param QuerySegmentListBuilder $querySegmentListBuilder
* @param QuerySegmentListProcessor $querySegmentListProcessor
*/
public function __construct( QuerySegmentListBuilder $querySegmentListBuilder, QuerySegmentListProcessor $querySegmentListProcessor ) {
$this->querySegmentListBuilder = $querySegmentListBuilder;
$this->querySegmentListProcessor = $querySegmentListProcessor;
}
/**
* @since 3.0
*
* @param QueryParser $queryParser
*/
public function setQueryParser( QueryParser $queryParser ) {
$this->queryParser = $queryParser;
}
/**
* @since 2.2
*
* @param string $conceptDescriptionText
*
* @return QuerySegment|null
*/
public function getQuerySegmentFrom( $conceptDescriptionText ) {
QuerySegment::$qnum = 0;
$querySegmentListBuilder = $this->querySegmentListBuilder;
$querySegmentListBuilder->setSortKeys( [] );
if ( $this->queryParser === null ) {
throw new RuntimeException( 'Missing a QueryParser instance' );
}
$querySegmentListBuilder->getQuerySegmentFrom(
$this->queryParser->getQueryDescription( $conceptDescriptionText )
);
$qid = $querySegmentListBuilder->getLastQuerySegmentId();
$querySegmentList = $querySegmentListBuilder->getQuerySegmentList();
if ( $qid < 0 ) {
return null;
}
// execute query tree, resolve all dependencies
$this->querySegmentListProcessor->setQueryMode(
Query::MODE_INSTANCES
);
$this->querySegmentListProcessor->setQuerySegmentList(
$querySegmentList
);
$this->querySegmentListProcessor->process( $qid );
return $querySegmentList[$qid];
}
/**
* @since 2.2
*/
public function cleanUp() {
$this->querySegmentListProcessor->setQueryMode( Query::MODE_INSTANCES );
$this->querySegmentListProcessor->cleanUp();
}
/**
* @since 2.2
*
* @return array
*/
public function getErrors() {
return $this->querySegmentListBuilder->getErrors();
}
}
|
