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<?php |
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namespace Storeman; |
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use Storeman\Exception\Exception; |
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use Storeman\SynchronizationProgressListener\SynchronizationProgressListenerInterface; |
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/** |
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* This class coordinates executions with multiple vaults involved. |
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*/ |
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class Storeman |
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{ |
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/** |
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* @var Container |
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*/ |
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protected $container; |
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public function __construct(Container $container = null) |
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{ |
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$this->container = $container ?: new Container(); |
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$this->container->injectStoreman($this); |
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} |
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public function getConfiguration(): Configuration |
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{ |
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return $this->container->get('configuration'); |
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} |
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/** |
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* Returns the DI container of this storeman instance. |
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* Some service names resolve to different implementations depending on the current vault which can be set as a context. |
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* E.g. "storageAdapter" resolves to the storage adapter implementation configured for the current vault. |
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* |
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* @param Vault $vault |
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* @return Container |
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*/ |
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public function getContainer(Vault $vault = null): Container |
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{ |
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return $this->container->selectVault($vault); |
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} |
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/** |
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* Returns a specific vault by title. |
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* |
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* @param string $vaultTitle |
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* @return Vault |
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*/ |
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public function getVault(string $vaultTitle): Vault |
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{ |
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$vaults = $this->container->getVaults(); |
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if (!$vaults->has($vaultTitle)) |
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{ |
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$vaultConfiguration = $this->getConfiguration()->getVault($vaultTitle); |
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$vaults->register(new Vault($this, $vaultConfiguration)); |
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} |
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return $vaults->get($vaultTitle); |
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} |
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/** |
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* Returns all configured vaults. |
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* |
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* @return Vault[] |
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*/ |
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public function getVaults(): array |
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{ |
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return array_values(array_map(function(VaultConfiguration $vaultConfiguration) { |
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return $this->getVault($vaultConfiguration->getTitle()); |
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}, $this->getConfiguration()->getVaults())); |
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} |
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/** |
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* Returns a subset of the configured vaults identified by the given set of titles. |
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* |
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* @param array $titles |
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* @return Vault[] |
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*/ |
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public function getVaultsByTitle(array $titles): array |
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{ |
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return array_filter($this->getVaults(), function(Vault $vault) use ($titles) { |
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return in_array($vault->getVaultConfiguration()->getTitle(), $titles); |
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}); |
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} |
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/** |
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* Returns all those vaults that have a given revision. |
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* |
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* @param int $revision |
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* @return Vault[] |
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*/ |
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public function getVaultsHavingRevision(int $revision): array |
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{ |
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return array_filter($this->getVaults(), function(Vault $vault) use ($revision) { |
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return $vault->getVaultLayout()->getSynchronizations()->getSynchronization($revision) !== null; |
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}); |
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} |
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public function synchronize(array $vaultTitles = null, SynchronizationProgressListenerInterface $progressListener = null): OperationResultList |
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{ |
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$vaults = ($vaultTitles === null) ? $this->getVaults() : $this->getVaultsByTitle($vaultTitles); |
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$this->acquireLocks($vaults, Vault::LOCK_SYNC); |
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$newRevision = ($this->getLastRevision() ?: 0) + 1; |
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$return = new OperationResultList(); |
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foreach ($vaults as $vault) |
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{ |
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$return->append($vault->synchronize($newRevision, $progressListener)); |
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} |
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$this->releaseLocks($vaults, Vault::LOCK_SYNC); |
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return $return; |
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} |
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public function restore(int $toRevision = null, string $fromVault = null, SynchronizationProgressListenerInterface $progressListener = null): OperationResultList |
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{ |
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$vault = $this->getVaultForDownload($toRevision, $fromVault); |
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if ($vault === null) |
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{ |
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return new OperationResultList(); |
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} |
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$operationResultList = $vault->restore($toRevision, $progressListener); |
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return $operationResultList; |
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} |
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public function dump(string $targetPath, int $revision = null, string $fromVault = null, SynchronizationProgressListenerInterface $progressListener = null): OperationResultList |
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{ |
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$vault = $this->getVaultForDownload($revision, $fromVault); |
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if ($vault === null) |
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{ |
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return new OperationResultList(); |
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} |
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$operationResultList = $vault->dump($targetPath, $revision, $progressListener); |
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return $operationResultList; |
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} |
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/** |
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* Returns the highest revision number across all vaults. |
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* |
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* @return int |
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*/ |
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public function getLastRevision(): ?int |
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{ |
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$max = 0; |
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foreach ($this->getVaults() as $vault) |
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{ |
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if ($lastSynchronization = $vault->getVaultLayout()->getLastSynchronization()) |
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{ |
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$max = max($max, $lastSynchronization->getRevision()); |
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} |
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} |
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return $max ?: null; |
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} |
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/** |
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* Builds and returns a history of all synchronizations on record for this archive. |
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* |
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* @return Synchronization[][] |
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*/ |
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public function buildSynchronizationHistory(): array |
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{ |
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$return = []; |
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foreach ($this->getVaults() as $vault) |
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{ |
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$vaultConfig = $vault->getVaultConfiguration(); |
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$list = $vault->loadSynchronizationList(); |
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foreach ($list as $synchronization) |
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{ |
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/** @var Synchronization $synchronization */ |
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$return[$synchronization->getRevision()][$vaultConfig->getTitle()] = $synchronization; |
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} |
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} |
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ksort($return); |
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return $return; |
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} |
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/** |
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* @param Vault[] $vaults |
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* @param string $lockName |
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*/ |
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protected function acquireLocks(array $vaults, string $lockName) |
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{ |
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foreach ($vaults as $vault) |
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{ |
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if (!$vault->getLockAdapter()->acquireLock($lockName)) |
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{ |
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throw new Exception("Failed to acquire lock for vault {$vault->getVaultConfiguration()->getTitle()}"); |
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} |
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} |
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} |
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/** |
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* @param Vault[] $vaults |
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* @param string $lockName |
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*/ |
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protected function releaseLocks(array $vaults, string $lockName) |
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{ |
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foreach ($vaults as $vault) |
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{ |
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if (!$vault->getLockAdapter()->releaseLock($lockName)) |
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{ |
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throw new Exception("Failed to release lock for vault {$vault->getVaultConfiguration()->getTitle()}"); |
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} |
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} |
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} |
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protected function getVaultForDownload(?int $revision, ?string $vaultTitle): ?Vault |
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{ |
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$revision = $revision ?: $this->getLastRevision(); |
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if ($revision === null) |
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{ |
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return null; |
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} |
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if ($vaultTitle) |
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{ |
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$vault = $this->getVault($vaultTitle); |
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} |
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else |
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{ |
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$vaults = $this->getVaultsHavingRevision($revision); |
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$vault = reset($vaults) ?: null; |
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} |
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if ($vault === null) |
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{ |
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throw new Exception("Cannot find requested revision #{$revision} in any configured vault."); |
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} |
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return $vault; |
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} |
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} |
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