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| author | Luke Pulverenti <luke.pulverenti@gmail.com> | 2017-02-23 14:13:07 -0500 |
|---|---|---|
| committer | Luke Pulverenti <luke.pulverenti@gmail.com> | 2017-02-23 14:13:07 -0500 |
| commit | e391ee1b1724c44c3a12bca24f3dff9389de4b8b (patch) | |
| tree | a8174e5dd1adaa876f32b00495becbd1a9246924 /Emby.Server.Implementations/Sync/TargetDataProvider.cs | |
| parent | 34171a7507d393d2afbe0f4dd2719f9067441e8a (diff) | |
update components
Diffstat (limited to 'Emby.Server.Implementations/Sync/TargetDataProvider.cs')
| -rw-r--r-- | Emby.Server.Implementations/Sync/TargetDataProvider.cs | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/Emby.Server.Implementations/Sync/TargetDataProvider.cs b/Emby.Server.Implementations/Sync/TargetDataProvider.cs deleted file mode 100644 index cac8f0cd8..000000000 --- a/Emby.Server.Implementations/Sync/TargetDataProvider.cs +++ /dev/null @@ -1,208 +0,0 @@ -using MediaBrowser.Common.Configuration; -using MediaBrowser.Controller; -using MediaBrowser.Controller.Sync; -using MediaBrowser.Model.Logging; -using MediaBrowser.Model.Serialization; -using MediaBrowser.Model.Sync; -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading; -using System.Threading.Tasks; -using MediaBrowser.Model.IO; - -namespace Emby.Server.Implementations.Sync -{ - public class TargetDataProvider : ISyncDataProvider - { - private readonly SyncTarget _target; - private readonly IServerSyncProvider _provider; - - private readonly SemaphoreSlim _dataLock = new SemaphoreSlim(1, 1); - private readonly SemaphoreSlim _remoteDataLock = new SemaphoreSlim(1, 1); - private List<LocalItem> _items; - - private readonly ILogger _logger; - private readonly IJsonSerializer _json; - private readonly IFileSystem _fileSystem; - private readonly IApplicationPaths _appPaths; - private readonly IServerApplicationHost _appHost; - private readonly IMemoryStreamFactory _memoryStreamProvider; - - public TargetDataProvider(IServerSyncProvider provider, SyncTarget target, IServerApplicationHost appHost, ILogger logger, IJsonSerializer json, IFileSystem fileSystem, IApplicationPaths appPaths, IMemoryStreamFactory memoryStreamProvider) - { - _logger = logger; - _json = json; - _provider = provider; - _target = target; - _fileSystem = fileSystem; - _appPaths = appPaths; - _memoryStreamProvider = memoryStreamProvider; - _appHost = appHost; - } - - private string[] GetRemotePath() - { - var parts = new List<string> - { - _appHost.FriendlyName, - "data.json" - }; - - parts = parts.Select(i => GetValidFilename(_provider, i)).ToList(); - - return parts.ToArray(); - } - - private string GetValidFilename(IServerSyncProvider provider, string filename) - { - // We can always add this method to the sync provider if it's really needed - return _fileSystem.GetValidFilename(filename); - } - - private async Task<List<LocalItem>> RetrieveItems(CancellationToken cancellationToken) - { - _logger.Debug("Getting {0} from {1}", string.Join(MediaSync.PathSeparatorString, GetRemotePath().ToArray()), _provider.Name); - - await _remoteDataLock.WaitAsync(cancellationToken).ConfigureAwait(false); - - try - { - var fileResult = await _provider.GetFiles(GetRemotePath().ToArray(), _target, cancellationToken).ConfigureAwait(false); - - if (fileResult.Items.Length > 0) - { - using (var stream = await _provider.GetFile(fileResult.Items[0].FullName, _target, new Progress<double>(), cancellationToken)) - { - return _json.DeserializeFromStream<List<LocalItem>>(stream); - } - } - } - finally - { - _remoteDataLock.Release(); - } - - return new List<LocalItem>(); - } - - private async Task EnsureData(CancellationToken cancellationToken) - { - if (_items == null) - { - _items = await RetrieveItems(cancellationToken).ConfigureAwait(false); - } - } - - private async Task SaveData(List<LocalItem> items, CancellationToken cancellationToken) - { - using (var stream = _memoryStreamProvider.CreateNew()) - { - _json.SerializeToStream(items, stream); - - // Save to sync provider - stream.Position = 0; - var remotePath = GetRemotePath(); - - await _remoteDataLock.WaitAsync(cancellationToken).ConfigureAwait(false); - - try - { - _logger.Debug("Saving data.json to {0}. Remote path: {1}", _provider.Name, string.Join("/", remotePath)); - - await _provider.SendFile(stream, remotePath, _target, new Progress<double>(), cancellationToken).ConfigureAwait(false); - } - finally - { - _remoteDataLock.Release(); - } - } - } - - private async Task<T> GetData<T>(bool enableCache, Func<List<LocalItem>, T> dataFactory) - { - if (!enableCache) - { - var items = await RetrieveItems(CancellationToken.None).ConfigureAwait(false); - var newCache = items.ToList(); - var result = dataFactory(items); - await UpdateCache(newCache).ConfigureAwait(false); - return result; - } - - await _dataLock.WaitAsync().ConfigureAwait(false); - - try - { - await EnsureData(CancellationToken.None).ConfigureAwait(false); - - return dataFactory(_items); - } - finally - { - _dataLock.Release(); - } - } - - private async Task UpdateData(Func<List<LocalItem>, List<LocalItem>> action) - { - var items = await RetrieveItems(CancellationToken.None).ConfigureAwait(false); - items = action(items); - await SaveData(items.ToList(), CancellationToken.None).ConfigureAwait(false); - - await UpdateCache(null).ConfigureAwait(false); - } - - private async Task UpdateCache(List<LocalItem> list) - { - await _dataLock.WaitAsync().ConfigureAwait(false); - - try - { - _items = list; - } - finally - { - _dataLock.Release(); - } - } - - public Task<List<LocalItem>> GetLocalItems(SyncTarget target, string serverId) - { - return GetData(false, items => items.Where(i => string.Equals(i.ServerId, serverId, StringComparison.OrdinalIgnoreCase)).ToList()); - } - - public Task AddOrUpdate(SyncTarget target, LocalItem item) - { - return UpdateData(items => - { - var list = items.Where(i => !string.Equals(i.Id, item.Id, StringComparison.OrdinalIgnoreCase)) - .ToList(); - - list.Add(item); - - return list; - }); - } - - public Task Delete(SyncTarget target, string id) - { - return UpdateData(items => items.Where(i => !string.Equals(i.Id, id, StringComparison.OrdinalIgnoreCase)).ToList()); - } - - public Task<LocalItem> Get(SyncTarget target, string id) - { - return GetData(true, items => items.FirstOrDefault(i => string.Equals(i.Id, id, StringComparison.OrdinalIgnoreCase))); - } - - public Task<List<LocalItem>> GetItems(SyncTarget target, string serverId, string itemId) - { - return GetData(true, items => items.Where(i => string.Equals(i.ServerId, serverId, StringComparison.OrdinalIgnoreCase) && string.Equals(i.ItemId, itemId, StringComparison.OrdinalIgnoreCase)).ToList()); - } - - public Task<List<LocalItem>> GetItemsBySyncJobItemId(SyncTarget target, string serverId, string syncJobItemId) - { - return GetData(false, items => items.Where(i => string.Equals(i.ServerId, serverId, StringComparison.OrdinalIgnoreCase) && string.Equals(i.SyncJobItemId, syncJobItemId, StringComparison.OrdinalIgnoreCase)).ToList()); - } - } -} |
