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| Name | Lines | Methods | CRAP | ||||
|---|---|---|---|---|---|---|---|
| setDefaultTtl | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| getDefaultTtl | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| resolveTtl | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | ||
| validateKey | 100.00% | 2 / 2 | 100.00% | 1 / 1 | 3 | ||
| expiryFromTtl | 85.71% | 6 / 7 | 0.00% | 0 / 1 | 4.05 | ||
| getMultiple | 100.00% | 5 / 5 | 100.00% | 1 / 1 | 2 | ||
| setMultiple | 83.33% | 5 / 6 | 0.00% | 0 / 1 | 3.04 | ||
| deleteMultiple | 83.33% | 5 / 6 | 0.00% | 0 / 1 | 3.04 | ||
| 27 | abstract class Cache implements CacheInterface | |
| 28 | { | |
| 29 | /** | |
| 30 | * Default TTL in seconds applied when a {@see set()} call omits one. | |
| 31 | * | |
| 32 | * `null` means "no default" — an omitted TTL caches forever, matching the | |
| 33 | * PSR-16 semantics. Set via {@see setDefaultTtl()}. | |
| 34 | * | |
| 35 | * @var int|null | |
| 36 | */ | |
| 37 | private ?int $defaultTtl = null; | |
| 38 | ||
| 39 | /** | |
| 40 | * Set the default TTL applied when a {@see set()} call omits one. | |
| 41 | * | |
| 42 | * @param int|null $ttl Default TTL in seconds, or null for no default | |
| 43 | * @return void | |
| 44 | */ | |
| 45 | public function setDefaultTtl(?int $ttl): void | |
| 46 | { | |
| 47 | $this->defaultTtl = $ttl; | |
| 48 | } | |
| 49 | ||
| 50 | /** | |
| 51 | * Get the configured default TTL. | |
| 52 | * | |
| 53 | * @return int|null Default TTL in seconds, or null when none is set | |
| 54 | */ | |
| 55 | public function getDefaultTtl(): ?int | |
| 56 | { | |
| 57 | return $this->defaultTtl; | |
| 58 | } | |
| 59 | ||
| 60 | /** | |
| 61 | * Resolve the effective TTL for a {@see set()} call. | |
| 62 | * | |
| 63 | * Returns the caller-supplied TTL, or the configured default when none | |
| 64 | * was given. | |
| 65 | * | |
| 66 | * @param null|int|DateInterval $ttl The caller-supplied TTL | |
| 67 | * @return null|int|DateInterval The effective TTL | |
| 68 | */ | |
| 69 | protected function resolveTtl(null|int|DateInterval $ttl): null|int|DateInterval | |
| 70 | { | |
| 71 | return $ttl ?? $this->defaultTtl; | |
| 72 | } | |
| 73 | ||
| 74 | /** | |
| 75 | * Validate a cache key. | |
| 76 | * | |
| 77 | * Keys must be strings; anything else is rejected so callers get a | |
| 78 | * consistent {@see InvalidArgumentException} rather than a TypeError. | |
| 79 | * | |
| 80 | * The 512-character cap is well above the PSR-16 minimum of 64 and is | |
| 81 | * bounded to keep cache metadata from being abused. The character set | |
| 82 | * `[A-Za-z0-9_.]` matches the PSR-16 required set; the reserved | |
| 83 | * characters `{}()/\@:` are rejected. | |
| 84 | * | |
| 85 | * @param mixed $key The key to validate | |
| 86 | * @return void | |
| 87 | * @throws InvalidArgumentException If the key is not a legal value | |
| 88 | */ | |
| 89 | protected function validateKey(mixed $key): void | |
| 90 | { | |
| 91 | if (!is_string($key) || preg_match('/^[A-Za-z0-9_.]{1,512}$/', $key) !== 1) { | |
| 92 | throw new InvalidArgumentException($key); | |
| 93 | } | |
| 94 | } | |
| 95 | ||
| 96 | /** | |
| 97 | * Convert a TTL into an absolute expiry timestamp. | |
| 98 | * | |
| 99 | * @param null|int|DateInterval $ttl The TTL to convert | |
| 100 | * @return int|null Absolute unix timestamp of expiry, or null for "forever" | |
| 101 | */ | |
| 102 | protected function expiryFromTtl(null|int|DateInterval $ttl): ?int | |
| 103 | { | |
| 104 | if ($ttl === null) { | |
| 105 | return null; | |
| 106 | } | |
| 107 | ||
| 108 | if ($ttl instanceof DateInterval) { | |
| 109 | $ttl = (new \DateTimeImmutable())->add($ttl)->getTimestamp() - time(); | |
| 110 | } | |
| 111 | ||
| 112 | if ($ttl <= 0) { | |
| 113 | // Already expired: return a timestamp in the past so the item is | |
| 114 | // treated as stale and removed rather than stored. | |
| 115 | return time() - 1; | |
| 116 | } | |
| 117 | ||
| 118 | return time() + $ttl; | |
| 119 | } | |
| 120 | ||
| 121 | /** | |
| 122 | * @inheritDoc | |
| 123 | */ | |
| 124 | public function getMultiple(iterable $keys, mixed $default = null): iterable | |
| 125 | { | |
| 126 | $result = []; | |
| 127 | ||
| 128 | foreach ($keys as $key) { | |
| 129 | $this->validateKey($key); | |
| 130 | $result[$key] = $this->get($key, $default); | |
| 131 | } | |
| 132 | ||
| 133 | return $result; | |
| 134 | } | |
| 135 | ||
| 136 | /** | |
| 137 | * @inheritDoc | |
| 138 | */ | |
| 139 | public function setMultiple(iterable $values, null|int|DateInterval $ttl = null): bool | |
| 140 | { | |
| 141 | $success = true; | |
| 142 | ||
| 143 | foreach ($values as $key => $value) { | |
| 144 | $this->validateKey($key); | |
| 145 | if (!$this->set($key, $value, $ttl)) { | |
| 146 | $success = false; | |
| 147 | } | |
| 148 | } | |
| 149 | ||
| 150 | return $success; | |
| 151 | } | |
| 152 | ||
| 153 | /** | |
| 154 | * @inheritDoc | |
| 155 | */ | |
| 156 | public function deleteMultiple(iterable $keys): bool | |
| 157 | { | |
| 158 | $success = true; | |
| 159 | ||
| 160 | foreach ($keys as $key) { | |
| 161 | $this->validateKey($key); | |
| 162 | if (!$this->delete($key)) { | |
| 163 | $success = false; | |
| 164 | } | |
| 165 | } | |
| 166 | ||
| 167 | return $success; | |
| 168 | } | |
| 169 | } |