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1 | <?php |
2 | |
3 | namespace oat\taoQtiTest\models; |
4 | |
5 | use qtism\data\storage\php\PhpDocument; |
6 | use qtism\data\storage\php\PhpStorageException; |
7 | use qtism\data\QtiComponent; |
8 | |
9 | /** |
10 | * PHP Code Compilation Data Service. |
11 | * |
12 | * This Compilation Data Service implementation aims at compiling |
13 | * Delivery data as plain PHP code. |
14 | */ |
15 | class PhpCodeCompilationDataService extends CompilationDataService |
16 | { |
17 | protected $cacheDir; |
18 | |
19 | public const OPTION_CACHE_COMPACT_TEST_FILE = 'cacheCompactTestFile'; |
20 | |
21 | public const OUTPUT_FILE_TYPE = 'php'; |
22 | |
23 | public function __construct($options = []) |
24 | { |
25 | parent::__construct($options); |
26 | |
27 | $this->cacheDir = sys_get_temp_dir() . '/taooldtestrunnerphpcache'; |
28 | } |
29 | |
30 | /** |
31 | * @return string |
32 | */ |
33 | public function getOutputFileType() |
34 | { |
35 | return self::OUTPUT_FILE_TYPE; |
36 | } |
37 | |
38 | public function writeCompilationData( |
39 | \tao_models_classes_service_StorageDirectory $compilationDirectory, |
40 | $path, |
41 | QtiComponent $object |
42 | ) { |
43 | $path .= '.' . self::OUTPUT_FILE_TYPE; |
44 | $doc = new PhpDocument(); |
45 | $doc->setDocumentComponent($object); |
46 | |
47 | $compilationDirectory->write( |
48 | $path, |
49 | $doc->saveToString() |
50 | ); |
51 | } |
52 | |
53 | public function readCompilationData( |
54 | \tao_models_classes_service_StorageDirectory $compilationDirectory, |
55 | $path, |
56 | $cacheInfo = '' |
57 | ) { |
58 | $path .= '.' . self::OUTPUT_FILE_TYPE; |
59 | $dir = $this->ensureCacheDirectory($compilationDirectory); |
60 | $cacheKey = $this->cacheKey($cacheInfo); |
61 | $cacheFile = "${dir}/${cacheKey}." . self::OUTPUT_FILE_TYPE; |
62 | |
63 | if ($this->useCompactCacheFile() && !is_file($cacheFile)) { |
64 | file_put_contents($cacheFile, $compilationDirectory->read($path)); |
65 | } |
66 | |
67 | try { |
68 | $doc = new PhpDocument(); |
69 | if ($this->useCompactCacheFile()) { |
70 | $doc->load($cacheFile); |
71 | } else { |
72 | $doc->loadFromString($compilationDirectory->read($path)); |
73 | } |
74 | } catch (PhpStorageException $e) { |
75 | $msg = "PHP Compilation Data in directory '" . $compilationDirectory->getId() . "' at path '" . $path |
76 | . "' could not be executed properly."; |
77 | throw new \common_Exception($msg); |
78 | } |
79 | |
80 | return $doc->getDocumentComponent(); |
81 | } |
82 | |
83 | /** |
84 | * @return bool|mixed |
85 | */ |
86 | protected function useCompactCacheFile() |
87 | { |
88 | $value = $this->getOption(static::OPTION_CACHE_COMPACT_TEST_FILE); |
89 | |
90 | return is_null($value) ? true : $value; |
91 | } |
92 | |
93 | protected function ensureCacheDirectory(\tao_models_classes_service_StorageDirectory $compilationDirectory) |
94 | { |
95 | $dirId = md5($compilationDirectory->getId()); |
96 | |
97 | for ($i = 1; $i < 6; $i += 2) { |
98 | $dirId = substr_replace($dirId, '/', $i, 0); |
99 | } |
100 | |
101 | $path = $this->cacheDir . "/${dirId}"; |
102 | |
103 | if (!is_dir($path)) { |
104 | @mkdir($path, 0700, true); |
105 | } |
106 | |
107 | return $path; |
108 | } |
109 | |
110 | protected function cacheKey($cacheInfo = '') |
111 | { |
112 | $key = 'php-data'; |
113 | |
114 | if (!empty($cacheInfo)) { |
115 | $key .= "-${cacheInfo}"; |
116 | } |
117 | |
118 | return $key; |
119 | } |
120 | } |