Updated all the contrib modules to their latest versions.

[yaffs-website] / web / modules / contrib / file_mdm / src / FileMetadataManager.php

diff --git a/web/modules/contrib/file_mdm/src/FileMetadataManager.php b/web/modules/contrib/file_mdm/src/FileMetadataManager.php
new file mode 100644 (file)
index 0000000..97d8a6b
--- /dev/null
+++ b/web/modules/contrib/file_mdm/src/FileMetadataManager.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace Drupal\file_mdm;
+
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Config\ConfigFactoryInterface;
+use Drupal\Core\File\FileSystemInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\file_mdm\Plugin\FileMetadataPluginManager;
+use Psr\Log\LoggerInterface;
+
+/**
+ * A service class to provide file metadata.
+ */
+class FileMetadataManager implements FileMetadataManagerInterface {
+
+  use StringTranslationTrait;
+
+  /**
+   * The FileMetadata plugin manager.
+   *
+   * @var \Drupal\file_mdm\Plugin\FileMetadataPluginManager
+   */
+  protected $pluginManager;
+
+  /**
+   * The file_mdm logger.
+   *
+   * @var \Psr\Log\LoggerInterface
+   */
+  protected $logger;
+
+  /**
+   * The config factory service.
+   *
+   * @var \Drupal\Core\Config\ConfigFactoryInterface
+   */
+  protected $configFactory;
+
+  /**
+   * The file system service.
+   *
+   * @var \Drupal\Core\File\FileSystemInterface
+   */
+  protected $fileSystem;
+
+  /**
+   * The cache service.
+   *
+   * @var \Drupal\Core\Cache\CacheBackendInterface
+   */
+  protected $cache;
+
+  /**
+   * The array of FileMetadata objects currently in use.
+   *
+   * @var \Drupal\file_mdm\FileMetadataInterface[]
+   */
+  protected $files = [];
+
+  /**
+   * Constructs a FileMetadataManager object.
+   *
+   * @param \Drupal\file_mdm\Plugin\FileMetadataPluginManager $plugin_manager
+   *   The FileMetadata plugin manager.
+   * @param \Psr\Log\LoggerInterface $logger
+   *   The file_mdm logger.
+   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
+   *   The config factory.
+   * @param \Drupal\Core\File\FileSystemInterface $file_system
+   *   The file system service.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_service
+   *   The cache service.
+   */
+  public function __construct(FileMetadataPluginManager $plugin_manager, LoggerInterface $logger, ConfigFactoryInterface $config_factory, FileSystemInterface $file_system, CacheBackendInterface $cache_service) {
+    $this->pluginManager = $plugin_manager;
+    $this->logger = $logger;
+    $this->configFactory = $config_factory;
+    $this->fileSystem = $file_system;
+    $this->cache = $cache_service;
+  }
+
+  /**
+   * Returns an hash for the URI, used internally by the manager.
+   *
+   * @param string $uri
+   *   The URI to a file.
+   *
+   * @return string
+   *   An hash string.
+   */
+  protected function calculateHash($uri) {
+    // Sanitize URI removing duplicate slashes, if any.
+    // @see http://stackoverflow.com/questions/12494515/remove-unnecessary-slashes-from-path
+    $uri = preg_replace('/([^:])(\/{2,})/', '$1/', $uri);
+    // If URI is invalid and no local file path exists, return NULL.
+    if (!file_valid_uri($uri) && !$this->fileSystem->realpath($uri)) {
+      return NULL;
+    }
+    // Return a hash of the URI.
+    return hash('sha256', $uri);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function has($uri) {
+    $hash = $this->calculateHash($uri);
+    return $hash ? isset($this->files[$hash]) : NULL;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function uri($uri) {
+    if (!$hash = $this->calculateHash($uri)) {
+      return NULL;
+    }
+    if (!isset($this->files[$hash])) {
+      $this->files[$hash] = new FileMetadata($this->pluginManager, $this->logger, $this->fileSystem, $uri, $hash);
+    }
+    return $this->files[$hash];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function deleteCachedMetadata($uri) {
+    if (!$hash = $this->calculateHash($uri)) {
+      return FALSE;
+    }
+    foreach (array_keys($this->pluginManager->getDefinitions()) as $plugin_id) {
+      $this->cache->delete("hash:{$plugin_id}:{$hash}");
+    }
+    return TRUE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function release($uri) {
+    if (!$hash = $this->calculateHash($uri)) {
+      return FALSE;
+    }
+    if (isset($this->files[$hash])) {
+      unset($this->files[$hash]);
+      return TRUE;
+    }
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function count() {
+    return count($this->files);
+  }
+
+}