初始化代码
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115
vendor/league/flysystem-cached-adapter/src/Storage/Adapter.php
vendored
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115
vendor/league/flysystem-cached-adapter/src/Storage/Adapter.php
vendored
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<?php
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namespace League\Flysystem\Cached\Storage;
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use League\Flysystem\AdapterInterface;
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use League\Flysystem\Config;
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class Adapter extends AbstractCache
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{
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/**
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* @var AdapterInterface An adapter
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*/
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protected $adapter;
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/**
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* @var string the file to cache to
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*/
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protected $file;
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/**
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* @var int|null seconds until cache expiration
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*/
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protected $expire = null;
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/**
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* Constructor.
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*
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* @param AdapterInterface $adapter adapter
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* @param string $file the file to cache to
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* @param int|null $expire seconds until cache expiration
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*/
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public function __construct(AdapterInterface $adapter, $file, $expire = null)
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{
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$this->adapter = $adapter;
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$this->file = $file;
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$this->setExpire($expire);
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}
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/**
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* Set the expiration time in seconds.
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*
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* @param int $expire relative expiration time
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*/
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protected function setExpire($expire)
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{
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if ($expire) {
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$this->expire = $this->getTime($expire);
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}
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}
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/**
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* Get expiration time in seconds.
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*
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* @param int $time relative expiration time
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*
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* @return int actual expiration time
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*/
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protected function getTime($time = 0)
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{
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return intval(microtime(true)) + $time;
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}
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/**
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* {@inheritdoc}
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*/
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public function setFromStorage($json)
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{
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list($cache, $complete, $expire) = json_decode($json, true);
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if (! $expire || $expire > $this->getTime()) {
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$this->cache = $cache;
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$this->complete = $complete;
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} else {
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$this->adapter->delete($this->file);
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function load()
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{
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if ($this->adapter->has($this->file)) {
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$file = $this->adapter->read($this->file);
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if ($file && !empty($file['contents'])) {
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$this->setFromStorage($file['contents']);
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function getForStorage()
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{
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$cleaned = $this->cleanContents($this->cache);
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return json_encode([$cleaned, $this->complete, $this->expire]);
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}
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/**
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* {@inheritdoc}
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*/
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public function save()
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{
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$config = new Config();
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$contents = $this->getForStorage();
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if ($this->adapter->has($this->file)) {
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$this->adapter->update($this->file, $contents, $config);
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} else {
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$this->adapter->write($this->file, $contents, $config);
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}
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}
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}
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