C# IFileSystem.ResolveShortcut方法代码示例

        /// <summary>
        /// Deletes a shortcut from within a virtual folder, within either the default view or a user view
        /// </summary>
        /// <param name="fileSystem">The file system.</param>
        /// <param name="virtualFolderName">Name of the virtual folder.</param>
        /// <param name="mediaPath">The media path.</param>
        /// <param name="user">The user.</param>
        /// <param name="appPaths">The app paths.</param>
        /// <exception cref="System.IO.DirectoryNotFoundException">The media folder does not exist</exception>
        public static void RemoveMediaPath(IFileSystem fileSystem, string virtualFolderName, string mediaPath, User user, IServerApplicationPaths appPaths)
        {
            var rootFolderPath = user != null ? user.RootFolderPath : appPaths.DefaultUserViewsPath;
            var path = Path.Combine(rootFolderPath, virtualFolderName);

            if (!Directory.Exists(path))
            {
                throw new DirectoryNotFoundException(string.Format("The media collection {0} does not exist", virtualFolderName));
            }

            var shortcut = Directory.EnumerateFiles(path, ShortcutFileSearch, SearchOption.AllDirectories).FirstOrDefault(f => fileSystem.ResolveShortcut(f).Equals(mediaPath, StringComparison.OrdinalIgnoreCase));

            if (!string.IsNullOrEmpty(shortcut))
            {
                File.Delete(shortcut);
            }
        }

        /// <summary>
        /// Gets the filtered file system entries.
        /// </summary>
        /// <param name="directoryService">The directory service.</param>
        /// <param name="path">The path.</param>
        /// <param name="fileSystem">The file system.</param>
        /// <param name="logger">The logger.</param>
        /// <param name="args">The args.</param>
        /// <param name="flattenFolderDepth">The flatten folder depth.</param>
        /// <param name="resolveShortcuts">if set to <c>true</c> [resolve shortcuts].</param>
        /// <returns>Dictionary{System.StringFileSystemInfo}.</returns>
        /// <exception cref="System.ArgumentNullException">path</exception>
        public static Dictionary<string, FileSystemMetadata> GetFilteredFileSystemEntries(IDirectoryService directoryService,
            string path,
            IFileSystem fileSystem,
            ILogger logger,
            ItemResolveArgs args,
            int flattenFolderDepth = 0,
            bool resolveShortcuts = true)
        {
            if (string.IsNullOrEmpty(path))
            {
                throw new ArgumentNullException("path");
            }
            if (args == null)
            {
                throw new ArgumentNullException("args");
            }

            if (!resolveShortcuts && flattenFolderDepth == 0)
            {
                return directoryService.GetFileSystemDictionary(path);
            }

            var entries = directoryService.GetFileSystemEntries(path);

            var dict = new Dictionary<string, FileSystemMetadata>(StringComparer.OrdinalIgnoreCase);

            foreach (var entry in entries)
            {
                var isDirectory = entry.IsDirectory;

                var fullName = entry.FullName;

                if (resolveShortcuts && fileSystem.IsShortcut(fullName))
                {
                    try
                    {
                        var newPath = fileSystem.ResolveShortcut(fullName);

                        if (string.IsNullOrWhiteSpace(newPath))
                        {
                            //invalid shortcut - could be old or target could just be unavailable
                            logger.Warn("Encountered invalid shortcut: " + fullName);
                            continue;
                        }

                        // Don't check if it exists here because that could return false for network shares.
                        var data = fileSystem.GetDirectoryInfo(newPath);

                        // add to our physical locations
                        args.AddAdditionalLocation(newPath);

                        dict[newPath] = data;
                    }
                    catch (Exception ex)
                    {
                        logger.ErrorException("Error resolving shortcut from {0}", ex, fullName);
                    }
                }
                else if (flattenFolderDepth > 0 && isDirectory)
                {
                    foreach (var child in GetFilteredFileSystemEntries(directoryService, fullName, fileSystem, logger, args, flattenFolderDepth: flattenFolderDepth - 1, resolveShortcuts: resolveShortcuts))
                    {
                        dict[child.Key] = child.Value;
                    }
                }
                else
                {
                    dict[fullName] = entry;
                }
            }

            return dict;
        }

        /// <summary>
        /// Gets the filtered file system entries.
        /// </summary>
        /// <param name="path">The path.</param>
        /// <param name="fileSystem">The file system.</param>
        /// <param name="logger">The logger.</param>
        /// <param name="args">The args.</param>
        /// <param name="searchPattern">The search pattern.</param>
        /// <param name="flattenFolderDepth">The flatten folder depth.</param>
        /// <param name="resolveShortcuts">if set to <c>true</c> [resolve shortcuts].</param>
        /// <returns>Dictionary{System.StringFileSystemInfo}.</returns>
        /// <exception cref="System.ArgumentNullException">path</exception>
        public static Dictionary<string, FileSystemInfo> GetFilteredFileSystemEntries(string path, IFileSystem fileSystem, ILogger logger, ItemResolveArgs args, string searchPattern = "*", int flattenFolderDepth = 0, bool resolveShortcuts = true)
        {
            if (string.IsNullOrEmpty(path))
            {
                throw new ArgumentNullException("path");
            }
            if (args == null)
            {
                throw new ArgumentNullException("args");
            }

            var entries = new DirectoryInfo(path).EnumerateFileSystemInfos(searchPattern, SearchOption.TopDirectoryOnly);

            if (!resolveShortcuts && flattenFolderDepth == 0)
            {
                // Seeing dupes on some users file system for some reason
                var dictionary = new Dictionary<string, FileSystemInfo>(StringComparer.OrdinalIgnoreCase);

                foreach (var info in entries)
                {
                    dictionary[info.FullName] = info;
                }

                return dictionary;
            }

            var dict = new Dictionary<string, FileSystemInfo>(StringComparer.OrdinalIgnoreCase);

            foreach (var entry in entries)
            {
                var isDirectory = (entry.Attributes & FileAttributes.Directory) == FileAttributes.Directory;

                var fullName = entry.FullName;

                if (resolveShortcuts && fileSystem.IsShortcut(fullName))
                {
                    var newPath = fileSystem.ResolveShortcut(fullName);

                    if (string.IsNullOrWhiteSpace(newPath))
                    {
                        //invalid shortcut - could be old or target could just be unavailable
                        logger.Warn("Encountered invalid shortcut: " + fullName);
                        continue;
                    }

                    // Don't check if it exists here because that could return false for network shares.
                    var data = new DirectoryInfo(newPath);

                    // add to our physical locations
                    args.AddAdditionalLocation(newPath);

                    dict[newPath] = data;
                }
                else if (flattenFolderDepth > 0 && isDirectory)
                {
                    foreach (var child in GetFilteredFileSystemEntries(fullName, fileSystem, logger, args, flattenFolderDepth: flattenFolderDepth - 1, resolveShortcuts: resolveShortcuts))
                    {
                        dict[child.Key] = child.Value;
                    }
                }
                else
                {
                    dict[fullName] = entry;
                }
            }

            return dict;
        }