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| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DetectsConnectionLoss | 100.00% | 13 / 13 | 100.00% | 4 / 4 | 10 | 100.00% | 1 / 1 | |||
| isStale | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| markStale | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| clearStale | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| isConnectionLoss | 100.00% | 10 / 10 | 100.00% | 1 / 1 | 7 | |||||
| 1 | <?php | |
| 2 | ||
| 3 | declare(strict_types=1); | |
| 4 | ||
| 5 | namespace BlueprintAU\Radiant\Database\Concerns; | |
| 6 | ||
| 7 | /** | |
| 8 | * Detects a connection whose transport has died, and tracks that state. | |
| 9 | * | |
| 10 | * Extracted from {@see \BlueprintAU\Radiant\Database\Connections\SqlConnection} | |
| 11 | * so any connection backend can share the same failure semantics: a | |
| 12 | * connection-loss error marks the instance stale, and a caching layer (e.g. | |
| 13 | * {@see \BlueprintAU\Radiant\Database\DatabaseManager}) consults | |
| 14 | * {@see isStale()} before handing the instance out again — one server | |
| 15 | * restart no longer poisons the cached connection for the life of the | |
| 16 | * process. | |
| 17 | * | |
| 18 | * The SQLSTATE handling is SQL-specific; a non-SQL backend using this trait | |
| 19 | * would override {@see isConnectionLoss()} (or simply never call it, since | |
| 20 | * nothing here auto-marks without a call site). | |
| 21 | */ | |
| 22 | trait DetectsConnectionLoss | |
| 23 | { | |
| 24 | /** | |
| 25 | * Whether a connection-loss error has marked this connection dead. | |
| 26 | * | |
| 27 | * @var bool | |
| 28 | */ | |
| 29 | protected bool $stale = false; | |
| 30 | ||
| 31 | /** | |
| 32 | * Whether this connection has been marked dead by a connection-loss | |
| 33 | * error and should be discarded by a caching layer. | |
| 34 | * | |
| 35 | * @return bool | |
| 36 | */ | |
| 37 | public function isStale(): bool | |
| 38 | { | |
| 39 | return $this->stale; | |
| 40 | } | |
| 41 | ||
| 42 | /** | |
| 43 | * Mark this connection dead after a connection-loss error. | |
| 44 | * | |
| 45 | * Public so a caching layer can also force-evict; the query paths set | |
| 46 | * it automatically when they detect a connection loss. | |
| 47 | */ | |
| 48 | public function markStale(): void | |
| 49 | { | |
| 50 | $this->stale = true; | |
| 51 | } | |
| 52 | ||
| 53 | /** | |
| 54 | * Clear the stale flag — used after a successful reconnect so a rebuilt | |
| 55 | * or recovered connection is served normally again. | |
| 56 | */ | |
| 57 | public function clearStale(): void | |
| 58 | { | |
| 59 | $this->stale = false; | |
| 60 | } | |
| 61 | ||
| 62 | /** | |
| 63 | * Whether a PDOException looks like a lost connection rather than a | |
| 64 | * statement-level failure. | |
| 65 | * | |
| 66 | * @param \PDOException $e | |
| 67 | * @return bool | |
| 68 | */ | |
| 69 | protected function isConnectionLoss(\PDOException $e): bool | |
| 70 | { | |
| 71 | $sqlstate = (string) ($e->errorInfo[0] ?? $e->getCode()); | |
| 72 | if (in_array($sqlstate, ['08001', '08003', '08006', '08007', '08S01', '28000'], true)) { | |
| 73 | return true; | |
| 74 | } | |
| 75 | ||
| 76 | if ($sqlstate === 'HY000') { | |
| 77 | return str_contains($e->getMessage(), 'server has gone away') | |
| 78 | || str_contains($e->getMessage(), 'Lost connection') | |
| 79 | || str_contains($e->getMessage(), 'Error while sending') | |
| 80 | || str_contains($e->getMessage(), 'broken pipe') | |
| 81 | || str_contains($e->getMessage(), 'connection closed'); | |
| 82 | } | |
| 83 | ||
| 84 | return false; | |
| 85 | } | |
| 86 | } |