PHPSocialNetwork /
phpfastcache
| Total Complexity | 43 |
| Total Lines | 304 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Driver often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Driver, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 36 | class Driver implements AggregatablePoolInterface |
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| 37 | { |
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| 38 | use IOHelperTrait; |
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| 39 | |||
| 40 | /** @var array<PDO> */ |
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| 41 | protected array $dbInstances = []; |
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| 42 | protected const INDEXING_FILE = 'indexing'; |
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| 43 | |||
| 44 | protected int $maxSize = 10; |
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| 45 | |||
| 46 | protected int $currentDB = 1; |
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| 47 | |||
| 48 | protected string $sqliteDir = ''; |
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| 49 | |||
| 50 | protected ?PDO $indexing; |
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| 51 | |||
| 52 | /** |
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| 53 | * @return bool |
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| 54 | * @throws PhpfastcacheCoreException |
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| 55 | */ |
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| 56 | public function driverCheck(): bool |
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| 57 | { |
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| 58 | return extension_loaded('pdo_sqlite') && (is_writable($this->getSqliteDir()) || @mkdir($this->getSqliteDir(), $this->getDefaultChmod(), true)); |
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| 59 | } |
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| 60 | |||
| 61 | /** |
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| 62 | * @return string |
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| 63 | * @throws PhpfastcacheCoreException |
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| 64 | * @throws PhpfastcacheInvalidArgumentException |
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| 65 | */ |
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| 66 | public function getSqliteDir(): string |
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| 67 | { |
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| 68 | return $this->sqliteDir ?: $this->getPath(); |
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| 69 | } |
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| 70 | |||
| 71 | /** |
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| 72 | * @return array |
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| 73 | */ |
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| 74 | public function __sleep(): array |
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| 75 | { |
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| 76 | return array_diff(array_keys(get_object_vars($this)), ['indexing', 'instance']); |
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| 77 | } |
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| 78 | |||
| 79 | /** |
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| 80 | * @return bool |
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| 81 | * @throws PhpfastcacheIOException |
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| 82 | */ |
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| 83 | protected function driverConnect(): bool |
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| 84 | { |
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| 85 | if (!file_exists($this->getSqliteDir()) && !@mkdir($this->getSqliteDir(), $this->getDefaultChmod(), true)) { |
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| 86 | throw new PhpfastcacheIOException(sprintf('Sqlite cannot write in "%s", aborting...', $this->getPath())); |
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| 87 | } |
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| 88 | |||
| 89 | $this->sqliteDir = $this->getPath(); |
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| 90 | |||
| 91 | return true; |
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| 92 | } |
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| 93 | |||
| 94 | /** |
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| 95 | * @param ExtendedCacheItemInterface $item |
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| 96 | * @return ?array<string, mixed> |
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| 97 | */ |
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| 98 | protected function driverRead(ExtendedCacheItemInterface $item): ?array |
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| 99 | { |
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| 100 | try { |
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| 101 | $stm = $this->getDb($item->getEncodedKey()) |
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| 102 | ->prepare("SELECT * FROM `caching` WHERE `keyword`=:keyword LIMIT 1"); |
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| 103 | $stm->execute( |
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| 104 | [ |
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| 105 | ':keyword' => $item->getEncodedKey(), |
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| 106 | ] |
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| 107 | ); |
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| 108 | $row = $stm->fetch(PDO::FETCH_ASSOC); |
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| 109 | } catch (PDOException $e) { |
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| 110 | try { |
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| 111 | $stm = $this->getDb($item->getEncodedKey(), true) |
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| 112 | ->prepare("SELECT * FROM `caching` WHERE `keyword`=:keyword LIMIT 1"); |
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| 113 | $stm->execute( |
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| 114 | [ |
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| 115 | ':keyword' => $item->getEncodedKey(), |
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| 116 | ] |
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| 117 | ); |
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| 118 | $row = $stm->fetch(PDO::FETCH_ASSOC); |
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| 119 | } catch (PDOException $e) { |
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| 120 | return null; |
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| 121 | } |
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| 122 | } |
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| 123 | |||
| 124 | if (isset($row['object'])) { |
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| 125 | return $this->decode($row['object']); |
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| 126 | } |
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| 127 | |||
| 128 | return null; |
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| 129 | } |
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| 130 | |||
| 131 | /** |
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| 132 | * @param string $keyword |
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| 133 | * @param bool $reset |
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| 134 | * @return PDO |
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| 135 | */ |
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| 136 | public function getDb(string $keyword, bool $reset = false): PDO |
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| 137 | { |
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| 138 | /** |
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| 139 | * Default is phpfastcache |
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| 140 | */ |
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| 141 | $instant = $this->getDbIndex($keyword); |
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| 142 | |||
| 143 | /** |
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| 144 | * init instant |
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| 145 | */ |
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| 146 | if (!isset($this->dbInstances[$instant])) { |
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| 147 | // check DB Files ready or not |
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| 148 | $tableCreated = false; |
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| 149 | if ($reset || !file_exists($this->sqliteDir . '/db' . $instant)) { |
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| 150 | $tableCreated = true; |
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| 151 | } |
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| 152 | $pdo = new PDO('sqlite:' . $this->sqliteDir . '/db' . $instant); |
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| 153 | $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
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| 154 | |||
| 155 | if ($tableCreated) { |
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| 156 | $this->initDB($pdo); |
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| 157 | } |
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| 158 | |||
| 159 | $this->dbInstances[$instant] = $pdo; |
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| 160 | unset($pdo); |
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| 161 | } |
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| 162 | |||
| 163 | return $this->dbInstances[$instant]; |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Return Database of Keyword |
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| 168 | * @param string $keyword |
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| 169 | * @return int |
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| 170 | */ |
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| 171 | public function getDbIndex(string $keyword) |
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| 172 | { |
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| 173 | if (!isset($this->indexing)) { |
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| 174 | $tableCreated = false; |
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| 175 | if (!file_exists($this->sqliteDir . '/indexing')) { |
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| 176 | $tableCreated = true; |
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| 177 | } |
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| 178 | |||
| 179 | $pdo = new PDO("sqlite:" . $this->sqliteDir . '/' . self::INDEXING_FILE); |
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| 180 | $pdo->setAttribute( |
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| 181 | PDO::ATTR_ERRMODE, |
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| 182 | PDO::ERRMODE_EXCEPTION |
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| 183 | ); |
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| 184 | |||
| 185 | if ($tableCreated) { |
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| 186 | $this->initIndexing($pdo); |
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| 187 | } |
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| 188 | $this->indexing = $pdo; |
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| 189 | unset($pdo); |
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| 190 | |||
| 191 | $stm = $this->indexing->prepare("SELECT MAX(`db`) as `db` FROM `balancing`"); |
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| 192 | $stm->execute(); |
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| 193 | $row = $stm->fetch(PDO::FETCH_ASSOC); |
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| 194 | if (!isset($row['db'])) { |
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| 195 | $db = 1; |
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| 196 | } elseif ($row['db'] <= 1) { |
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| 197 | $db = 1; |
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| 198 | } else { |
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| 199 | $db = $row['db']; |
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| 200 | } |
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| 201 | |||
| 202 | // check file size |
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| 203 | |||
| 204 | $size = file_exists($this->sqliteDir . '/db' . $db) ? filesize($this->sqliteDir . '/db' . $db) : 1; |
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| 205 | $size = round($size / 1024 / 1024, 1); |
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| 206 | |||
| 207 | |||
| 208 | if ($size > $this->maxSize) { |
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| 209 | $db++; |
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| 210 | } |
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| 211 | $this->currentDB = $db; |
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| 212 | } |
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| 213 | |||
| 214 | // look for keyword |
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| 215 | $stm = $this->indexing->prepare("SELECT * FROM `balancing` WHERE `keyword`=:keyword LIMIT 1"); |
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| 216 | $stm->execute( |
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| 217 | [ |
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| 218 | ':keyword' => $keyword, |
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| 219 | ] |
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| 220 | ); |
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| 221 | $row = $stm->fetch(PDO::FETCH_ASSOC); |
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| 222 | if (isset($row['db']) && $row['db'] != '') { |
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| 223 | $db = $row['db']; |
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| 224 | } else { |
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| 225 | /* |
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| 226 | * Insert new to Indexing |
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| 227 | */ |
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| 228 | $db = $this->currentDB; |
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| 229 | $stm = $this->indexing->prepare("INSERT INTO `balancing` (`keyword`,`db`) VALUES(:keyword, :db)"); |
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| 230 | $stm->execute( |
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| 231 | [ |
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| 232 | ':keyword' => $keyword, |
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| 233 | ':db' => $db, |
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| 234 | ] |
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| 235 | ); |
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| 236 | } |
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| 237 | |||
| 238 | return $db; |
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| 239 | } |
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| 240 | |||
| 241 | /** |
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| 242 | * INIT Indexing DB |
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| 243 | * @param PDO $db |
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| 244 | */ |
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| 245 | public function initIndexing(PDO $db): void |
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| 246 | { |
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| 247 | // delete everything before reset indexing |
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| 248 | $dir = opendir($this->sqliteDir); |
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| 249 | while ($file = readdir($dir)) { |
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| 250 | if ($file !== '.' && $file !== '..' && $file !== 'indexing' && $file !== 'dbfastcache') { |
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| 251 | unlink($this->sqliteDir . '/' . $file); |
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| 252 | } |
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| 253 | } |
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| 254 | |||
| 255 | $db->exec('DROP TABLE if exists "balancing"'); |
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| 256 | $db->exec('CREATE TABLE "balancing" ("keyword" VARCHAR PRIMARY KEY NOT NULL UNIQUE, "db" INTEGER)'); |
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| 257 | $db->exec('CREATE INDEX "db" ON "balancing" ("db")'); |
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| 258 | $db->exec('CREATE UNIQUE INDEX "lookup" ON "balancing" ("keyword")'); |
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| 259 | } |
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| 260 | |||
| 261 | /** |
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| 262 | * INIT NEW DB |
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| 263 | * @param PDO $db |
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| 264 | */ |
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| 265 | protected function initDB(PDO $db): void |
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| 266 | { |
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| 267 | $db->exec('drop table if exists "caching"'); |
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| 268 | $db->exec('CREATE TABLE "caching" ("id" INTEGER PRIMARY KEY AUTOINCREMENT, "keyword" VARCHAR UNIQUE, "object" BLOB, "exp" INTEGER)'); |
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| 269 | $db->exec('CREATE UNIQUE INDEX "cleanup" ON "caching" ("keyword","exp")'); |
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| 270 | $db->exec('CREATE INDEX "exp" ON "caching" ("exp")'); |
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| 271 | $db->exec('CREATE UNIQUE INDEX "keyword" ON "caching" ("keyword")'); |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * @param ExtendedCacheItemInterface $item |
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| 276 | * @return mixed |
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| 277 | * @throws PhpfastcacheInvalidArgumentException |
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| 278 | * @throws PhpfastcacheLogicException |
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| 279 | */ |
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| 280 | protected function driverWrite(ExtendedCacheItemInterface $item): bool |
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| 281 | { |
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| 282 | |||
| 283 | try { |
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| 284 | $stm = $this->getDb($item->getEncodedKey()) |
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| 285 | ->prepare("INSERT OR REPLACE INTO `caching` (`keyword`,`object`,`exp`) values(:keyword,:object,:exp)"); |
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| 286 | $stm->execute( |
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| 287 | [ |
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| 288 | ':keyword' => $item->getEncodedKey(), |
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| 289 | ':object' => $this->encode($this->driverPreWrap($item)), |
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| 290 | ':exp' => $item->getExpirationDate()->getTimestamp(), |
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| 291 | ] |
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| 292 | ); |
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| 293 | |||
| 294 | return true; |
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| 295 | } catch (PDOException $e) { |
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| 296 | return false; |
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| 297 | } |
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| 298 | } |
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| 299 | |||
| 300 | /** |
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| 301 | * @param string $key |
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| 302 | * @param string $encodedKey |
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| 303 | * @return bool |
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| 304 | */ |
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| 305 | protected function driverDelete(string $key, string $encodedKey): bool |
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| 306 | { |
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| 307 | try { |
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| 308 | $stm = $this->getDb($encodedKey) |
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| 309 | ->prepare("DELETE FROM `caching` WHERE (`exp` <= :exp) OR (`keyword`=:keyword) "); |
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| 310 | |||
| 311 | return $stm->execute( |
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| 312 | [ |
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| 313 | ':keyword' => $encodedKey, |
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| 314 | ':exp' => time(), |
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| 315 | ] |
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| 316 | ); |
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| 317 | } catch (PDOException $e) { |
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| 318 | return false; |
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| 319 | } |
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| 320 | } |
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| 321 | |||
| 322 | /** |
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| 323 | * @return bool |
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| 324 | * @throws PhpfastcacheCoreException |
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| 325 | */ |
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| 326 | protected function driverClear(): bool |
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| 340 | } |
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| 341 | } |
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| 342 |
This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.
This is most likely a typographical error or the method has been renamed.