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admin/phpMyAdmin/vendor/symfony/cache/Traits/AbstractAdapterTrait.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Cache\Traits;
+
+use Psr\Cache\CacheItemInterface;
+use Symfony\Component\Cache\CacheItem;
+use Symfony\Component\Cache\Exception\InvalidArgumentException;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+trait AbstractAdapterTrait
+{
+    use AbstractTrait;
+
+    /**
+     * @var \Closure needs to be set by class, signature is function(string <key>, mixed <value>, bool <isHit>)
+     */
+    private $createCacheItem;
+
+    /**
+     * @var \Closure needs to be set by class, signature is function(array <deferred>, string <namespace>, array <&expiredIds>)
+     */
+    private $mergeByLifetime;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $id = $this->getId($key);
+
+        $f = $this->createCacheItem;
+        $isHit = false;
+        $value = null;
+
+        try {
+            foreach ($this->doFetch([$id]) as $value) {
+                $isHit = true;
+            }
+
+            return $f($key, $value, $isHit);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch key "{key}": '.$e->getMessage(), ['key' => $key, 'exception' => $e]);
+        }
+
+        return $f($key, null, false);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+        $ids = [];
+
+        foreach ($keys as $key) {
+            $ids[] = $this->getId($key);
+        }
+        try {
+            $items = $this->doFetch($ids);
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch items: '.$e->getMessage(), ['keys' => $keys, 'exception' => $e]);
+            $items = [];
+        }
+        $ids = array_combine($ids, $keys);
+
+        return $this->generateItems($items, $ids);
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function save(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return $this->commit();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return bool
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        if (!$item instanceof CacheItem) {
+            return false;
+        }
+        $this->deferred[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    public function __sleep()
+    {
+        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
+    }
+
+    public function __wakeup()
+    {
+        throw new \BadMethodCallException('Cannot unserialize '.__CLASS__);
+    }
+
+    public function __destruct()
+    {
+        if ($this->deferred) {
+            $this->commit();
+        }
+    }
+
+    private function generateItems(iterable $items, array &$keys): iterable
+    {
+        $f = $this->createCacheItem;
+
+        try {
+            foreach ($items as $id => $value) {
+                if (!isset($keys[$id])) {
+                    throw new InvalidArgumentException(sprintf('Could not match value id "%s" to keys "%s".', $id, implode('", "', $keys)));
+                }
+                $key = $keys[$id];
+                unset($keys[$id]);
+                yield $key => $f($key, $value, true);
+            }
+        } catch (\Exception $e) {
+            CacheItem::log($this->logger, 'Failed to fetch items: '.$e->getMessage(), ['keys' => array_values($keys), 'exception' => $e]);
+        }
+
+        foreach ($keys as $key) {
+            yield $key => $f($key, null, false);
+        }
+    }
+}