|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* The MIT License (MIT) |
|
5
|
|
|
* |
|
6
|
|
|
* Copyright (c) 2014-2016 Spomky-Labs |
|
7
|
|
|
* |
|
8
|
|
|
* This software may be modified and distributed under the terms |
|
9
|
|
|
* of the MIT license. See the LICENSE file for details. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
namespace Jose\Object; |
|
13
|
|
|
|
|
14
|
|
|
use Assert\Assertion; |
|
15
|
|
|
|
|
16
|
|
|
trait Storable |
|
17
|
|
|
{ |
|
18
|
|
|
/** |
|
19
|
|
|
* @var \JsonSerializable |
|
20
|
|
|
*/ |
|
21
|
|
|
protected $object; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* @var string |
|
25
|
|
|
*/ |
|
26
|
|
|
protected $filename; |
|
27
|
|
|
|
|
28
|
|
|
/** |
|
29
|
|
|
* @var int|null |
|
30
|
|
|
*/ |
|
31
|
|
|
protected $file_modification_time = null; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* @param string $filename |
|
35
|
|
|
*/ |
|
36
|
|
|
public function setFilename($filename) |
|
37
|
|
|
{ |
|
38
|
|
|
Assertion::string($filename, 'Invalid filename.'); |
|
39
|
|
|
Assertion::directory(dirname($filename), 'The selected directory does not exist.'); |
|
40
|
|
|
Assertion::writeable(dirname($filename), 'The selected directory is not writable.'); |
|
41
|
|
|
$this->filename = $filename; |
|
42
|
|
|
} |
|
43
|
|
|
|
|
44
|
|
|
/** |
|
45
|
|
|
* @return string |
|
46
|
|
|
*/ |
|
47
|
|
|
public function getFilename() |
|
48
|
|
|
{ |
|
49
|
|
|
return $this->filename; |
|
50
|
|
|
} |
|
51
|
|
|
|
|
52
|
|
|
/** |
|
53
|
|
|
* @return \JsonSerializable |
|
54
|
|
|
*/ |
|
55
|
|
|
protected function getObject() |
|
56
|
|
|
{ |
|
57
|
|
|
return $this->object; |
|
58
|
|
|
} |
|
59
|
|
|
|
|
60
|
|
|
/** |
|
61
|
|
|
* @param \JsonSerializable $object |
|
62
|
|
|
*/ |
|
63
|
|
|
protected function setObject(\JsonSerializable $object) |
|
64
|
|
|
{ |
|
65
|
|
|
$this->object = $object; |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
protected function loadObjectIfNeeded() |
|
69
|
|
|
{ |
|
70
|
|
|
if (null !== $this->getObject() && false === $this->hasFileBeenUpdated()) { |
|
71
|
|
|
return; |
|
72
|
|
|
} |
|
73
|
|
|
|
|
74
|
|
|
if (null === $content = $this->getFileContent()) { |
|
75
|
|
|
$this->createAndSaveObject(); |
|
76
|
|
|
} else { |
|
77
|
|
|
$this->setObject($this->createObjectFromFileContent($content)); |
|
78
|
|
|
$this->file_modification_time = filemtime($this->getFilename()); |
|
79
|
|
|
} |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
|
|
/** |
|
83
|
|
|
* @return array|null |
|
84
|
|
|
*/ |
|
85
|
|
|
protected function getFileContent() |
|
86
|
|
|
{ |
|
87
|
|
|
if (file_exists($this->getFilename())) { |
|
88
|
|
|
$content = file_get_contents($this->getFilename()); |
|
89
|
|
|
if (false === $content) { |
|
90
|
|
|
return; |
|
91
|
|
|
} |
|
92
|
|
|
$content = json_decode($content, true); |
|
93
|
|
|
if (!is_array($content)) { |
|
94
|
|
|
return; |
|
95
|
|
|
} |
|
96
|
|
|
return $content; |
|
97
|
|
|
} |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
/** |
|
101
|
|
|
* @return \JsonSerializable |
|
102
|
|
|
*/ |
|
103
|
|
|
abstract protected function createNewObject(); |
|
104
|
|
|
|
|
105
|
|
|
/** |
|
106
|
|
|
* @param array $file_content |
|
107
|
|
|
* |
|
108
|
|
|
* @return \JsonSerializable |
|
109
|
|
|
*/ |
|
110
|
|
|
abstract protected function createObjectFromFileContent(array $file_content); |
|
111
|
|
|
|
|
112
|
|
|
/** |
|
113
|
|
|
* @return int|null |
|
114
|
|
|
*/ |
|
115
|
|
|
protected function getFileModificationTime() |
|
116
|
|
|
{ |
|
117
|
|
|
if (file_exists($this->getFilename())) { |
|
118
|
|
|
return filemtime($this->getFilename()); |
|
119
|
|
|
} |
|
120
|
|
|
} |
|
121
|
|
|
|
|
122
|
|
|
/** |
|
123
|
|
|
* @return bool |
|
124
|
|
|
*/ |
|
125
|
|
|
protected function hasFileBeenUpdated() |
|
126
|
|
|
{ |
|
127
|
|
|
if (null === $this->file_modification_time || null === $this->getFileModificationTime()) { |
|
128
|
|
|
return true; |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
|
|
return $this->file_modification_time !== $this->getFileModificationTime(); |
|
132
|
|
|
} |
|
133
|
|
|
|
|
134
|
|
|
/** |
|
135
|
|
|
* |
|
136
|
|
|
*/ |
|
137
|
|
|
protected function createAndSaveObject() |
|
138
|
|
|
{ |
|
139
|
|
|
$object = $this->createNewObject(); |
|
140
|
|
|
$this->setObject($object); |
|
141
|
|
|
$this->saveObject($object); |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
|
|
protected function saveObject(\JsonSerializable $object) |
|
145
|
|
|
{ |
|
146
|
|
|
file_put_contents($this->getFilename(), json_encode($object)); |
|
147
|
|
|
$this->file_modification_time = filemtime($this->getFilename()); |
|
148
|
|
|
} |
|
149
|
|
|
|
|
150
|
|
|
public function delete() |
|
151
|
|
|
{ |
|
152
|
|
|
if (file_exists($this->getFilename())) { |
|
153
|
|
|
unlink($this->getFilename()); |
|
154
|
|
|
} |
|
155
|
|
|
} |
|
156
|
|
|
} |
|
157
|
|
|
|
Spomky-Labs /
jose
