PHP Cache::save方法代码示例

 public function getAllProjects()
 {
     $key = "{$this->cachePrefix}-all-projects";
     if ($this->cache && ($projects = $this->cache->fetch($key))) {
         return $projects;
     }
     $first = json_decode($this->client->get('projects.json', ['query' => ['limit' => 100]])->getBody(), true);
     $projects = $first['projects'];
     if ($first['total_count'] > 100) {
         $requests = [];
         for ($i = 100; $i < $first['total_count']; $i += 100) {
             $requests[] = $this->client->getAsync('projects.json', ['query' => ['limit' => 100, 'offset' => $i]]);
         }
         /** @var Response[] $responses */
         $responses = Promise\unwrap($requests);
         $responseProjects = array_map(function (Response $response) {
             return json_decode($response->getBody(), true)['projects'];
         }, $responses);
         $responseProjects[] = $projects;
         $projects = call_user_func_array('array_merge', $responseProjects);
     }
     usort($projects, function ($projectA, $projectB) {
         return strcasecmp($projectA['name'], $projectB['name']);
     });
     $this->cache && $this->cache->save($key, $projects);
     return $projects;
 }

 /**
  * @param ServerRequestInterface $request
  * @param ResponseInterface $response
  * @param callable $next
  * @return ResponseInterface
  */
 public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
 {
     $key = $this->generateKey($request);
     $data = $this->cache->fetch($key);
     if (false !== $data) {
         list($body, $code, $headers) = unserialize($this->cache->fetch($key));
         $response->getBody()->write($body);
         $response = $response->withStatus($code);
         foreach (unserialize($headers) as $name => $value) {
             $response = $response->withHeader($name, $value);
         }
         return $response;
     }
     // prepare headers
     $ttl = $this->config['ttl'];
     $response = $next ? $next($request, $response) : $response;
     $response = $response->withHeader('Cache-Control', sprintf('public,max-age=%d,s-maxage=%d', $ttl, $ttl))->withHeader('ETag', $key);
     // save cache - status code, headers, body
     $body = $response->getBody()->__toString();
     $code = $response->getStatusCode();
     $headers = serialize($response->getHeaders());
     $data = serialize([$body, $code, $headers]);
     $this->cache->save($key, $data, $this->config['ttl']);
     return $response;
 }

 /**
  * @param $token
  * @param AuthUser $user
  * @return AccessToken
  */
 public function insertAccessToken($token, AuthUser $user)
 {
     $accessToken = new AccessToken();
     $accessToken->setCreatedAt(new \DateTime())->setId($token)->setUsername($user->getUsername());
     $this->cache->save($token, $accessToken, 604800);
     return $accessToken;
 }

 /**
  * Get the list of videos from YouTube
  *
  * @param string $channelId
  * @throws \Mcfedr\YouTube\LiveStreamsBundle\Exception\MissingChannelIdException
  * @return array
  */
 public function getStreams($channelId = null)
 {
     if (!$channelId) {
         $channelId = $this->channelId;
     }
     if (!$channelId) {
         throw new MissingChannelIdException("You must specify the channel id");
     }
     if ($this->cache) {
         $data = $this->cache->fetch($this->getCacheKey($channelId));
         if ($data !== false) {
             return $data;
         }
     }
     $searchResponse = $this->client->get('search', ['query' => ['part' => 'id', 'channelId' => $channelId, 'eventType' => 'live', 'type' => 'video', 'maxResults' => 50]]);
     $searchData = json_decode($searchResponse->getBody()->getContents(), true);
     $videosResponse = $this->client->get('videos', ['query' => ['part' => 'id,snippet,liveStreamingDetails', 'id' => implode(',', array_map(function ($video) {
         return $video['id']['videoId'];
     }, $searchData['items']))]]);
     $videosData = json_decode($videosResponse->getBody()->getContents(), true);
     $streams = array_map(function ($video) {
         return ['name' => $video['snippet']['title'], 'thumb' => $video['snippet']['thumbnails']['high']['url'], 'videoId' => $video['id']];
     }, array_values(array_filter($videosData['items'], function ($video) {
         return !isset($video['liveStreamingDetails']['actualEndTime']);
     })));
     if ($this->cache && $this->cacheTimeout > 0) {
         $this->cache->save($this->getCacheKey($channelId), $streams, $this->cacheTimeout);
     }
     return $streams;
 }

 /**
  * @param float $latitude
  * @param float $longitude
  * @return WeatherForecastForDay
  */
 public function getForDay($latitude, $longitude, $timestamp)
 {
     if (!$this->isValidTimestamp($timestamp)) {
         throw new \Exception('Invalid timestamp: ' . $timestamp);
     }
     if (!$this->isValidLatitude($latitude)) {
         throw new \Exception('Invalid latitude: ' . $latitude);
     }
     if (!$this->isValidLongitude($longitude)) {
         throw new \Exception('Invalid longitude: ' . $longitude);
     }
     $latitude = $this->normalizeGeoCoordinate($latitude);
     $longitude = $this->normalizeGeoCoordinate($longitude);
     $timestamp = $this->normalizeTimestamp($timestamp);
     $cacheKey = md5($latitude . $longitude . $timestamp);
     if (false === ($apiData = $this->cache->fetch($cacheKey))) {
         try {
             $apiData = $this->provider->getForDay($latitude, $longitude, $timestamp);
             $this->cache->save($cacheKey, $apiData, 3600 * 6);
             //TTL 6h
         } catch (\Exception $e) {
             return null;
         }
     }
     return new WeatherForecastForDay($apiData);
 }

 /**
  * {@inheritdoc}
  */
 public function getMetadataFor($value)
 {
     $class = $this->getClass($value);
     if (empty($class)) {
         throw InvalidArgumentException::create(InvalidArgumentException::VALUE_IS_NOT_AN_OBJECT, $value);
     }
     if (isset($this->loadedClasses[$class])) {
         return $this->loadedClasses[$class];
     }
     if (null !== $this->cache && ($this->loadedClasses[$class] = $this->cache->fetch($class))) {
         return $this->loadedClasses[$class];
     }
     if (!class_exists($class) && !interface_exists($class)) {
         throw InvalidArgumentException::create(InvalidArgumentException::CLASS_DOES_NOT_EXIST, $class);
     }
     $reflectionClass = new \ReflectionClass($class);
     $classMetadata = $this->createMetadata($reflectionClass);
     if (!$this->loader->loadClassMetadata($classMetadata)) {
         return $classMetadata;
     }
     $this->mergeSuperclasses($classMetadata);
     $this->validate($classMetadata);
     if ($this->eventDispatcher) {
         $this->eventDispatcher->dispatch(ClassMetadataLoadedEvent::LOADED_EVENT, new ClassMetadataLoadedEvent($classMetadata));
     }
     if (null !== $this->cache) {
         $this->cache->save($class, $classMetadata);
     }
     return $this->loadedClasses[$class] = $classMetadata;
 }

 /**
  * Get metadata for a certain class - loads once and caches
  * @param  string                $className
  * @throws \Drest\DrestException
  * @return ClassMetaData         $metaData
  */
 public function getMetadataForClass($className)
 {
     if (isset($this->loadedMetadata[$className])) {
         return $this->loadedMetadata[$className];
     }
     // check the cache
     if ($this->cache !== null) {
         $classMetadata = $this->cache->fetch($this->cache_prefix . $className);
         if ($classMetadata instanceof ClassMetaData) {
             if ($classMetadata->expired()) {
                 $this->cache->delete($this->cache_prefix . $className);
             } else {
                 $this->loadedMetadata[$className] = $classMetadata;
                 return $classMetadata;
             }
         }
     }
     $classMetadata = $this->driver->loadMetadataForClass($className);
     if ($classMetadata !== null) {
         $this->loadedMetadata[$className] = $classMetadata;
         if ($this->cache !== null) {
             $this->cache->save($this->cache_prefix . $className, $classMetadata);
         }
         return $classMetadata;
     }
     if (is_null($this->loadedMetadata[$className])) {
         throw DrestException::unableToLoadMetaDataFromDriver();
     }
     return $this->loadedMetadata[$className];
 }

 /**
  * {@inheritdoc}
  */
 public function getMetadataFor($value)
 {
     $class = $this->getClass($value);
     if (isset($this->loadedClasses[$class])) {
         return $this->loadedClasses[$class];
     }
     if ($this->cache && ($this->loadedClasses[$class] = $this->cache->fetch($class))) {
         return $this->loadedClasses[$class];
     }
     $classMetadata = new ClassMetadata($class);
     $this->loader->loadClassMetadata($classMetadata);
     $reflectionClass = $classMetadata->getReflectionClass();
     // Include metadata from the parent class
     if ($parent = $reflectionClass->getParentClass()) {
         $classMetadata->merge($this->getMetadataFor($parent->name));
     }
     // Include metadata from all implemented interfaces
     foreach ($reflectionClass->getInterfaces() as $interface) {
         $classMetadata->merge($this->getMetadataFor($interface->name));
     }
     if ($this->cache) {
         $this->cache->save($class, $classMetadata);
     }
     return $this->loadedClasses[$class] = $classMetadata;
 }

 /**
  * @param BlockHeaderInterface $block
  * @return bool
  */
 public function save(BlockHeaderInterface $block)
 {
     $key = $this->cacheIndexBlk($block);
     $this->blocks->save($key, $block);
     $this->size++;
     return $this;
 }

 protected function saveCached(\Money\CurrencyPair $pair)
 {
     if ($this->cache) {
         $cacheKey = $this->getCacheKey($pair->getCounterCurrency(), $pair->getBaseCurrency());
         $this->cache->save($cacheKey, $pair, self::CACHE_LIFETIME);
     }
 }

 public function getArguments(Request $request, $controller)
 {
     if (!is_array($controller)) {
         throw new \InvalidArgumentException('Can not resolve arguments ' . 'for the controller type: "' . ($controller instanceof \Closure ? 'closure' : gettype($controller)) . '" for URI "' . $request->getPathInfo() . '"');
     }
     $id = get_class($controller[0]) . '::' . $controller[1] . '#method-parameters';
     if (($parameters = $this->cacheProvider->fetch($id)) === false) {
         $parameters = $this->getParameters($controller[0], $controller[1]);
         $this->cacheProvider->save($id, $parameters);
     }
     $attributes = $request->attributes->all();
     $arguments = array();
     foreach ($parameters as $name => $options) {
         if (array_key_exists($name, $attributes)) {
             $arguments[] = $attributes[$name];
             continue;
         }
         if (array_key_exists('defaultValue', $options)) {
             $arguments[] = $options['defaultValue'];
             continue;
         }
         throw new \RuntimeException('Controller ' . get_class($controller[0]) . '::' . $controller[1] . ' requires that you provide a value ' . 'for the "$' . $name . '" argument (because there is no default value or ' . 'because there is a non optional argument after this one).');
     }
     return $arguments;
 }

 /**
  * {@inheritdoc}
  */
 public function getMetadataFor($value)
 {
     $class = $this->getClass($value);
     if (!$class) {
         throw new InvalidArgumentException(sprintf('Cannot create metadata for non-objects. Got: "%s"', gettype($value)));
     }
     if (isset($this->loadedClasses[$class])) {
         return $this->loadedClasses[$class];
     }
     if ($this->cache && ($this->loadedClasses[$class] = $this->cache->fetch($class))) {
         return $this->loadedClasses[$class];
     }
     if (!class_exists($class) && !interface_exists($class)) {
         throw new InvalidArgumentException(sprintf('The class or interface "%s" does not exist.', $class));
     }
     $classMetadata = new ClassMetadata($class);
     $this->loader->loadClassMetadata($classMetadata);
     $reflectionClass = $classMetadata->getReflectionClass();
     // Include metadata from the parent class
     if ($parent = $reflectionClass->getParentClass()) {
         $classMetadata->merge($this->getMetadataFor($parent->name));
     }
     // Include metadata from all implemented interfaces
     foreach ($reflectionClass->getInterfaces() as $interface) {
         $classMetadata->merge($this->getMetadataFor($interface->name));
     }
     if ($this->cache) {
         $this->cache->save($class, $classMetadata);
     }
     return $this->loadedClasses[$class] = $classMetadata;
 }

 /**
  * get config webhook for current webinstance
  *
  * @param $version
  *
  * @return mixed
  */
 public function getCacheContext($version)
 {
     if (!($config = $this->cache->fetch($this->getCacheKey()))) {
         $config = $this->createConfig($version);
         $this->cache->save($this->getCacheKey(), $config, 86400);
     }
     return $config;
 }

 /**
  * Get the contents of an URI and cache it for CACHE_LIFETIME seconds.
  *
  * @param  string  $uri
  * @return string
  */
 public function getContents($uri)
 {
     if (!$this->cache->contains($uri)) {
         $this->cache->save($uri, $contents = $this->download($uri), static::CACHE_LIFETIME);
         return $contents;
     }
     return $this->cache->fetch($uri);
 }

 /**
  * @param RequestInterface $request
  * @param ResponseInterface $response
  * @return bool true if success
  */
 public function cache(RequestInterface $request, ResponseInterface $response)
 {
     try {
         return $this->storage->save($this->getCacheKey($request), $this->getCacheObject($response));
     } catch (\Exception $ignored) {
         return false;
     }
 }