|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* This file is part of the League.csv library |
|
4
|
|
|
* |
|
5
|
|
|
* @license http://opensource.org/licenses/MIT |
|
6
|
|
|
* @link https://github.com/thephpleague/csv/ |
|
7
|
|
|
* @version 9.0.0 |
|
8
|
|
|
* @package League.csv |
|
9
|
|
|
* |
|
10
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
11
|
|
|
* file that was distributed with this source code. |
|
12
|
|
|
*/ |
|
13
|
|
|
declare(strict_types=1); |
|
14
|
|
|
|
|
15
|
|
|
namespace League\Csv\Config; |
|
16
|
|
|
|
|
17
|
|
|
use League\Csv\StreamIterator; |
|
18
|
|
|
use LogicException; |
|
19
|
|
|
use SplFileObject; |
|
20
|
|
|
|
|
21
|
|
|
/** |
|
22
|
|
|
* An abstract class to enable basic CSV manipulation |
|
23
|
|
|
* |
|
24
|
|
|
* @package League.csv |
|
25
|
|
|
* @since 9.0.0 |
|
26
|
|
|
* @internal |
|
27
|
|
|
*/ |
|
28
|
|
|
trait StreamTrait |
|
29
|
|
|
{ |
|
30
|
|
|
/** |
|
31
|
|
|
* The CSV document |
|
32
|
|
|
* |
|
33
|
|
|
* can be a StreamIterator object, a SplFileObject object or the string path to a file |
|
34
|
|
|
* |
|
35
|
|
|
* @var StreamIterator|SplFileObject |
|
36
|
|
|
*/ |
|
37
|
|
|
protected $document; |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* The CSV stream filter mode |
|
41
|
|
|
*/ |
|
42
|
|
|
protected $stream_filter_mode; |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* collection of stream filters |
|
46
|
|
|
* |
|
47
|
|
|
* @var array |
|
48
|
|
|
*/ |
|
49
|
|
|
protected $stream_filters = []; |
|
50
|
|
|
|
|
51
|
|
|
/** |
|
52
|
|
|
* Check if the trait methods can be used |
|
53
|
|
|
* |
|
54
|
|
|
* @throws LogicException If the API can not be use |
|
55
|
|
|
*/ |
|
56
|
|
|
protected function assertStreamable() |
|
57
|
|
|
{ |
|
58
|
|
|
if (!$this->isActiveStreamFilter()) { |
|
59
|
|
|
throw new LogicException('The stream filter API can not be used'); |
|
60
|
|
|
} |
|
61
|
|
|
} |
|
62
|
|
|
|
|
63
|
|
|
/** |
|
64
|
|
|
* Tells whether the stream filter capabilities can be used |
|
65
|
|
|
* |
|
66
|
|
|
* @return bool |
|
67
|
|
|
*/ |
|
68
|
|
|
public function isActiveStreamFilter(): bool |
|
69
|
|
|
{ |
|
70
|
|
|
return $this->document instanceof StreamIterator; |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* stream filter mode getter |
|
75
|
|
|
* |
|
76
|
|
|
* @return int |
|
77
|
|
|
*/ |
|
78
|
|
|
public function getStreamFilterMode(): int |
|
79
|
|
|
{ |
|
80
|
|
|
return $this->stream_filter_mode; |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* append a stream filter |
|
85
|
|
|
* |
|
86
|
|
|
* @param string $filter_name a string or an object that implements the '__toString' method |
|
87
|
|
|
* |
|
88
|
|
|
* @return $this |
|
89
|
|
|
*/ |
|
90
|
|
|
public function appendStreamFilter(string $filter_name): self |
|
91
|
|
|
{ |
|
92
|
|
|
$this->assertStreamable(); |
|
93
|
|
|
$this->stream_filters[] = $this->document->appendFilter($filter_name, $this->stream_filter_mode); |
|
94
|
|
|
|
|
95
|
|
|
return $this; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
/** |
|
99
|
|
|
* prepend a stream filter |
|
100
|
|
|
* |
|
101
|
|
|
* @param string $filter_name a string or an object that implements the '__toString' method |
|
102
|
|
|
* |
|
103
|
|
|
* @return $this |
|
104
|
|
|
*/ |
|
105
|
|
|
public function prependStreamFilter(string $filter_name): self |
|
106
|
|
|
{ |
|
107
|
|
|
$this->assertStreamable(); |
|
108
|
|
|
$this->stream_filters[] = $this->document->prependFilter($filter_name, $this->stream_filter_mode); |
|
109
|
|
|
|
|
110
|
|
|
return $this; |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* Remove all registered stream filter |
|
115
|
|
|
* |
|
116
|
|
|
* @return $this |
|
117
|
|
|
*/ |
|
118
|
|
|
public function clearStreamFilter(): self |
|
119
|
|
|
{ |
|
120
|
|
|
if (!$this->isActiveStreamFilter()) { |
|
121
|
|
|
return $this; |
|
122
|
|
|
} |
|
123
|
|
|
|
|
124
|
|
|
foreach ($this->stream_filters as $filter) { |
|
125
|
|
|
$this->document->removeFilter($filter); |
|
126
|
|
|
} |
|
127
|
|
|
|
|
128
|
|
|
$this->stream_filters = []; |
|
129
|
|
|
|
|
130
|
|
|
return $this; |
|
131
|
|
|
} |
|
132
|
|
|
} |
|
133
|
|
|
|
thephpleague /
csv
