PHPSocialNetwork /
phpfastcache
| Total Complexity | 55 |
| Total Lines | 453 |
| Duplicated Lines | 0 % |
| Changes | 2 | ||
| Bugs | 0 | Features | 0 |
Complex classes like CacheItemPoolTrait 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 CacheItemPoolTrait, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 39 | trait CacheItemPoolTrait |
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| 40 | { |
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| 41 | use DriverBaseTrait { |
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| 42 | DriverBaseTrait::__construct as __driverBaseConstruct; |
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| 43 | } |
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| 44 | |||
| 45 | /** |
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| 46 | * @var string |
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| 47 | */ |
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| 48 | protected static string $unsupportedKeyChars = '{}()/\@:'; |
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| 49 | |||
| 50 | /** |
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| 51 | * @var ExtendedCacheItemInterface[]|CacheItemInterface[] |
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| 52 | */ |
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| 53 | protected array $deferredList = []; |
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| 54 | |||
| 55 | /** |
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| 56 | * @var ExtendedCacheItemInterface[]|CacheItemInterface[] |
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| 57 | */ |
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| 58 | protected array $itemInstances = []; |
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| 59 | |||
| 60 | protected DriverIO $IO; |
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| 61 | |||
| 62 | public function __construct(ConfigurationOptionInterface $config, string $instanceId, EventManagerInterface $em) |
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| 63 | { |
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| 64 | $this->IO = new DriverIO(); |
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| 65 | $this->__driverBaseConstruct($config, $instanceId, $em); |
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| 66 | } |
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| 67 | |||
| 68 | /** |
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| 69 | * @throws PhpfastcacheLogicException |
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| 70 | * @throws PhpfastcacheInvalidArgumentException |
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| 71 | */ |
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| 72 | public function setItem(CacheItemInterface $item): static |
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| 73 | { |
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| 74 | if (self::getItemClass() === $item::class) { |
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| 75 | if (!$this->getConfig()->isUseStaticItemCaching()) { |
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| 76 | throw new PhpfastcacheLogicException( |
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| 77 | 'The static item caching option (useStaticItemCaching) is disabled so you cannot attach an item.' |
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| 78 | ); |
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| 79 | } |
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| 80 | |||
| 81 | $this->itemInstances[$item->getKey()] = $item; |
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| 82 | |||
| 83 | return $this; |
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| 84 | } |
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| 85 | throw new PhpfastcacheInvalidArgumentException( |
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| 86 | \sprintf( |
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| 87 | 'Invalid cache item class "%s" for driver "%s".', |
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| 88 | get_class($item), |
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| 89 | get_class($this) |
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| 90 | ) |
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| 91 | ); |
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| 92 | } |
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| 93 | |||
| 94 | /** |
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| 95 | * @inheritDoc |
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| 96 | * @throws PhpfastcacheCoreException |
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| 97 | * @throws PhpfastcacheDriverException |
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| 98 | * @throws PhpfastcacheInvalidArgumentException |
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| 99 | * @throws PhpfastcacheLogicException |
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| 100 | */ |
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| 101 | public function getItems(array $keys = []): iterable |
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| 102 | { |
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| 103 | $collection = []; |
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| 104 | |||
| 105 | foreach ($keys as $key) { |
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| 106 | $collection[$key] = $this->getItem($key); |
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| 107 | } |
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| 108 | |||
| 109 | return $collection; |
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| 110 | } |
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| 111 | |||
| 112 | /** |
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| 113 | * @param string $key |
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| 114 | * @return ExtendedCacheItemInterface |
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| 115 | * @throws PhpfastcacheCoreException |
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| 116 | * @throws PhpfastcacheInvalidArgumentException |
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| 117 | * @throws PhpfastcacheLogicException |
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| 118 | * @throws PhpfastcacheDriverException |
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| 119 | * |
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| 120 | * @SuppressWarnings(PHPMD.NPathComplexity) |
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| 121 | * @SuppressWarnings(PHPMD.GotoStatement) |
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| 122 | */ |
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| 123 | public function getItem(string $key): ExtendedCacheItemInterface |
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| 124 | { |
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| 125 | /** |
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| 126 | * Replace array_key_exists by isset |
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| 127 | * due to performance issue on huge |
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| 128 | * loop dispatching operations |
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| 129 | */ |
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| 130 | if (!isset($this->itemInstances[$key]) || !$this->getConfig()->isUseStaticItemCaching()) { |
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| 131 | if (\preg_match('~([' . \preg_quote(self::$unsupportedKeyChars, '~') . ']+)~', $key, $matches)) { |
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| 132 | throw new PhpfastcacheInvalidArgumentException( |
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| 133 | 'Unsupported key character detected: "' . $matches[1] . '". |
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| 134 | Please check: https://github.com/PHPSocialNetwork/phpfastcache/wiki/%5BV6%5D-Unsupported-characters-in-key-identifiers' |
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| 135 | ); |
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| 136 | } |
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| 137 | |||
| 138 | $cacheSlamsSpendSeconds = 0; |
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| 139 | $itemClass = self::getItemClass(); |
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| 140 | /** @var $item ExtendedCacheItemInterface */ |
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| 141 | $item = new $itemClass($this, $key, $this->eventManager); |
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| 142 | |||
| 143 | getItemDriverRead: |
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| 144 | { |
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| 145 | $driverArray = $this->driverRead($item); |
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| 146 | |||
| 147 | if ($driverArray) { |
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| 148 | if (!\is_array($driverArray)) { |
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|
introduced
by
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| 149 | throw new PhpfastcacheCoreException( |
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| 150 | sprintf( |
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| 151 | 'The driverRead method returned an unexpected variable type: %s', |
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| 152 | \gettype($driverArray) |
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| 153 | ) |
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| 154 | ); |
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| 155 | } |
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| 156 | $driverData = $this->driverUnwrapData($driverArray); |
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| 157 | |||
| 158 | if ($this->getConfig()->isPreventCacheSlams()) { |
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| 159 | while ($driverData instanceof ItemBatch) { |
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| 160 | if ($driverData->getItemDate()->getTimestamp() + $this->getConfig()->getCacheSlamsTimeout() < \time()) { |
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| 161 | /** |
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| 162 | * The timeout has been reached |
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| 163 | * Consider that the batch has |
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| 164 | * failed and serve an empty item |
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| 165 | * to avoid get stuck with a |
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| 166 | * batch item stored in driver |
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| 167 | */ |
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| 168 | goto getItemDriverExpired; |
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| 169 | } |
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| 170 | |||
| 171 | $this->eventManager->dispatch(Event::CACHE_GET_ITEM_IN_SLAM_BATCH, $this, $driverData, $cacheSlamsSpendSeconds); |
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| 172 | |||
| 173 | /** |
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| 174 | * Wait for a second before |
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| 175 | * attempting to get exit |
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| 176 | * the current batch process |
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| 177 | */ |
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| 178 | \sleep(1); |
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| 179 | $cacheSlamsSpendSeconds++; |
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| 180 | |||
| 181 | goto getItemDriverRead; |
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| 182 | } |
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| 183 | } |
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| 184 | |||
| 185 | $item->set($driverData); |
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| 186 | $item->expiresAt($this->driverUnwrapEdate($driverArray)); |
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| 187 | |||
| 188 | if ($this->getConfig()->isItemDetailedDate()) { |
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| 189 | /** |
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| 190 | * If the itemDetailedDate has been |
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| 191 | * set after caching, we MUST inject |
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| 192 | * a new DateTime object on the fly |
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| 193 | */ |
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| 194 | $item->setCreationDate($this->driverUnwrapCdate($driverArray) ?: new DateTime()); |
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| 195 | $item->setModificationDate($this->driverUnwrapMdate($driverArray) ?: new DateTime()); |
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| 196 | } |
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| 197 | |||
| 198 | $item->setTags($this->driverUnwrapTags($driverArray)); |
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| 199 | |||
| 200 | getItemDriverExpired: |
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| 201 | if ($item->isExpired()) { |
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| 202 | /** |
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| 203 | * Using driverDelete() instead of delete() |
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| 204 | * to avoid infinite loop caused by |
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| 205 | * getItem() call in delete() method |
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| 206 | * As we MUST return an item in any |
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| 207 | * way, we do not de-register here |
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| 208 | */ |
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| 209 | $this->driverDelete($item); |
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| 210 | |||
| 211 | /** |
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| 212 | * Reset the Item |
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| 213 | */ |
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| 214 | $item->set(null) |
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| 215 | ->expiresAfter((int) abs($this->getConfig()->getDefaultTtl())) |
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| 216 | ->setHit(false) |
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| 217 | ->setTags([]); |
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| 218 | if ($this->getConfig()->isItemDetailedDate()) { |
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| 219 | /** |
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| 220 | * If the itemDetailedDate has been |
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| 221 | * set after caching, we MUST inject |
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| 222 | * a new DateTime object on the fly |
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| 223 | */ |
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| 224 | $item->setCreationDate(new DateTime()); |
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| 225 | $item->setModificationDate(new DateTime()); |
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| 226 | } |
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| 227 | } else { |
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| 228 | $item->setHit(true); |
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| 229 | } |
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| 230 | } else { |
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| 231 | $item->expiresAfter((int) abs($this->getConfig()->getDefaultTtl())); |
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| 232 | } |
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| 233 | } |
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| 234 | } else { |
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| 235 | $item = $this->itemInstances[$key]; |
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| 236 | } |
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| 237 | |||
| 238 | |||
| 239 | if ($item !== null) { |
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| 240 | $this->eventManager->dispatch(Event::CACHE_GET_ITEM, $this, $item); |
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| 241 | |||
| 242 | $item->isHit() ? $this->getIO()->incReadHit() : $this->getIO()->incReadMiss(); |
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| 243 | } |
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| 244 | |||
| 245 | return $item; |
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| 246 | } |
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| 247 | |||
| 248 | /** |
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| 249 | * @param string $key |
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| 250 | * @return bool |
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| 251 | * @throws PhpfastcacheCoreException |
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| 252 | * @throws PhpfastcacheDriverException |
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| 253 | * @throws PhpfastcacheInvalidArgumentException |
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| 254 | * @throws PhpfastcacheLogicException |
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| 255 | */ |
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| 256 | public function hasItem(string $key): bool |
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| 257 | { |
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| 258 | return $this->getItem($key)->isHit(); |
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| 259 | } |
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| 260 | |||
| 261 | /** |
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| 262 | * @return bool |
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| 263 | * @throws PhpfastcacheCoreException |
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| 264 | * @throws PhpfastcacheDriverException |
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| 265 | * @throws PhpfastcacheLogicException |
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| 266 | * @throws PhpfastcacheIOException |
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| 267 | */ |
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| 268 | public function clear(): bool |
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| 269 | { |
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| 270 | $this->eventManager->dispatch(Event::CACHE_CLEAR_ITEM, $this, $this->itemInstances); |
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| 271 | |||
| 272 | $this->getIO()->incWriteHit(); |
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| 273 | // Faster than detachAllItems() |
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| 274 | $this->itemInstances = []; |
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| 275 | |||
| 276 | return $this->driverClear(); |
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| 277 | } |
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| 278 | |||
| 279 | /** |
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| 280 | * @inheritDoc |
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| 281 | * @throws PhpfastcacheCoreException |
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| 282 | * @throws PhpfastcacheDriverException |
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| 283 | * @throws PhpfastcacheInvalidArgumentException |
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| 284 | * @throws PhpfastcacheLogicException |
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| 285 | */ |
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| 286 | public function deleteItems(array $keys): bool |
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| 297 | } |
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| 298 | |||
| 299 | /** |
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| 300 | * @param string $key |
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| 301 | * @return bool |
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| 302 | * @throws PhpfastcacheCoreException |
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| 303 | * @throws PhpfastcacheDriverException |
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| 304 | * @throws PhpfastcacheInvalidArgumentException |
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| 305 | * @throws PhpfastcacheLogicException |
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| 306 | */ |
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| 307 | public function deleteItem(string $key): bool |
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| 308 | { |
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| 309 | $item = $this->getItem($key); |
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| 310 | if ($item->isHit() && $this->driverDelete($item)) { |
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| 311 | $item->setHit(false); |
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| 312 | $this->getIO()->incWriteHit(); |
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| 313 | |||
| 314 | $this->eventManager->dispatch(Event::CACHE_DELETE_ITEM, $this, $item); |
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| 315 | |||
| 316 | /** |
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| 317 | * De-register the item instance |
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| 318 | * then collect gc cycles |
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| 319 | */ |
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| 320 | $this->deregisterItem($key); |
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| 321 | |||
| 322 | /** |
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| 323 | * Perform a tag cleanup to avoid memory leaks |
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| 324 | */ |
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| 325 | if (!\str_starts_with($key, TaggableCacheItemPoolInterface::DRIVER_TAGS_KEY_PREFIX)) { |
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| 326 | $this->cleanItemTags($item); |
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| 327 | } |
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| 328 | |||
| 329 | return true; |
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| 330 | } |
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| 331 | |||
| 332 | return false; |
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| 333 | } |
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| 334 | |||
| 335 | /** |
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| 336 | * @param CacheItemInterface $item |
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| 337 | * @return bool |
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| 338 | */ |
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| 339 | public function saveDeferred(CacheItemInterface $item): bool |
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| 340 | { |
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| 341 | if (!\array_key_exists($item->getKey(), $this->itemInstances)) { |
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| 342 | $this->itemInstances[$item->getKey()] = $item; |
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| 343 | } elseif (\spl_object_hash($item) !== \spl_object_hash($this->itemInstances[$item->getKey()])) { |
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| 344 | throw new RuntimeException('Spl object hash mismatches ! You probably tried to save a detached item which has been already retrieved from cache.'); |
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| 345 | } |
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| 346 | |||
| 347 | $this->eventManager->dispatch(Event::CACHE_SAVE_DEFERRED_ITEM, $this, $item); |
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| 348 | $this->deferredList[$item->getKey()] = $item; |
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| 349 | |||
| 350 | return true; |
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| 351 | } |
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| 352 | |||
| 353 | /** |
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| 354 | * @return bool |
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| 355 | * @throws PhpfastcacheCoreException |
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| 356 | * @throws PhpfastcacheDriverException |
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| 357 | * @throws PhpfastcacheInvalidArgumentException |
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| 358 | * @throws PhpfastcacheLogicException |
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| 359 | */ |
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| 360 | public function commit(): bool |
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| 361 | { |
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| 362 | $this->eventManager->dispatch(Event::CACHE_COMMIT_ITEM, $this, new EventReferenceParameter($this->deferredList)); |
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| 363 | |||
| 364 | if (\count($this->deferredList)) { |
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| 365 | $return = true; |
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| 366 | foreach ($this->deferredList as $key => $item) { |
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| 367 | $result = $this->save($item); |
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| 368 | if ($result !== true) { |
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| 369 | unset($this->deferredList[$key]); |
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| 370 | $return = $result; |
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| 371 | } |
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| 372 | } |
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| 373 | |||
| 374 | return $return; |
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| 375 | } |
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| 376 | return false; |
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| 377 | } |
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| 378 | |||
| 379 | /** |
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| 380 | * @param CacheItemInterface $item |
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| 381 | * @return bool |
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| 382 | * @throws PhpfastcacheCoreException |
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| 383 | * @throws PhpfastcacheDriverException |
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| 384 | * @throws PhpfastcacheIOException |
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| 385 | * @throws PhpfastcacheInvalidArgumentException |
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| 386 | * @throws PhpfastcacheLogicException |
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| 387 | */ |
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| 388 | public function save(CacheItemInterface $item): bool |
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| 439 | } |
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| 440 | |||
| 441 | /** |
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| 442 | * @return DriverIO |
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| 443 | */ |
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| 444 | public function getIO(): DriverIO |
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| 445 | { |
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| 446 | return $this->IO; |
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| 447 | } |
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| 448 | |||
| 449 | /** |
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| 450 | * @internal This method de-register an item from $this->itemInstances |
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| 451 | */ |
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| 452 | protected function deregisterItem(string $item): static |
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| 453 | { |
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| 454 | unset($this->itemInstances[$item]); |
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| 455 | |||
| 456 | if (\gc_enabled()) { |
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| 457 | \gc_collect_cycles(); |
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| 458 | } |
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| 459 | |||
| 460 | return $this; |
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| 461 | } |
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| 462 | |||
| 463 | /** |
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| 464 | * @throws PhpfastcacheLogicException |
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| 465 | */ |
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| 466 | public function attachItem(CacheItemInterface $item): static |
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| 484 | } |
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| 485 | |||
| 486 | public function isAttached(CacheItemInterface $item): bool |
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| 487 | { |
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| 488 | if (isset($this->itemInstances[$item->getKey()])) { |
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| 489 | return \spl_object_hash($item) === \spl_object_hash($this->itemInstances[$item->getKey()]); |
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| 490 | } |
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| 491 | return false; |
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| 492 | } |
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| 493 | } |
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| 494 |
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