C# BaseItem.IsSaveLocalMetadataEnabled方法代码示例

        /// <summary>
        /// Determines whether [is enabled for] [the specified item].
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="updateType">Type of the update.</param>
        /// <returns><c>true</c> if [is enabled for] [the specified item]; otherwise, <c>false</c>.</returns>
        public bool IsEnabledFor(BaseItem item, ItemUpdateType updateType)
        {
            if (!item.IsFolder)
            {
                return false;
            }

            var wasMetadataEdited = (updateType & ItemUpdateType.MetadataEdit) == ItemUpdateType.MetadataEdit;
            var wasMetadataDownloaded = (updateType & ItemUpdateType.MetadataDownload) == ItemUpdateType.MetadataDownload;

            // If new metadata has been downloaded and save local is on
            if (item.IsSaveLocalMetadataEnabled() && (wasMetadataEdited || wasMetadataDownloaded))
            {
                if (!(item is Series) && !(item is BoxSet) && !(item is MusicArtist) && !(item is MusicAlbum) &&
                    !(item is Season))
                {
                    return true;
                }
            }

            // If new metadata has been downloaded or metadata was manually edited, proceed
            if (wasMetadataDownloaded || wasMetadataEdited)
            {
                if (item is AggregateFolder || item is UserRootFolder || item is CollectionFolder)
                {
                    return true;
                }
            }

            return false;
        }

        /// <summary>
        /// Determines whether [is enabled for] [the specified item].
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="updateType">Type of the update.</param>
        /// <returns><c>true</c> if [is enabled for] [the specified item]; otherwise, <c>false</c>.</returns>
        public bool IsEnabledFor(BaseItem item, ItemUpdateType updateType)
        {
            var wasMetadataEdited = (updateType & ItemUpdateType.MetadataEdit) == ItemUpdateType.MetadataEdit;
            var wasMetadataDownloaded = (updateType & ItemUpdateType.MetadataDownload) == ItemUpdateType.MetadataDownload;

            // If new metadata has been downloaded and save local is on
            if (item.IsSaveLocalMetadataEnabled() && (wasMetadataEdited || wasMetadataDownloaded))
            {
                if (item is MusicArtist)
                {
                    return true;
                }
            }

            // If new metadata has been downloaded or metadata was manually edited, proceed
            if (wasMetadataDownloaded || wasMetadataEdited)
            {
                var artist = item as MusicArtist;
                if (artist != null && artist.IsAccessedByName)
                {
                    return true;
                }
            }

            return false;
        }

        /// <summary>
        /// Determines whether [is enabled for] [the specified item].
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="updateType">Type of the update.</param>
        /// <returns><c>true</c> if [is enabled for] [the specified item]; otherwise, <c>false</c>.</returns>
        public bool IsEnabledFor(BaseItem item, ItemUpdateType updateType)
        {
            var wasMetadataEdited = (updateType & ItemUpdateType.MetadataEdit) == ItemUpdateType.MetadataEdit;
            var wasMetadataDownloaded = (updateType & ItemUpdateType.MetadataDownload) == ItemUpdateType.MetadataDownload;

            // If new metadata has been downloaded and save local is on
            if (item.IsSaveLocalMetadataEnabled() && (wasMetadataEdited || wasMetadataDownloaded))
            {
                return item is GameSystem;
            }

            return false;
        }

        /// <summary>
        /// Determines whether [is enabled for] [the specified item].
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="updateType">Type of the update.</param>
        /// <returns><c>true</c> if [is enabled for] [the specified item]; otherwise, <c>false</c>.</returns>
        public bool IsEnabledFor(BaseItem item, ItemUpdateType updateType)
        {
            var wasMetadataEdited = (updateType & ItemUpdateType.MetadataEdit) == ItemUpdateType.MetadataEdit;
            var wasMetadataDownloaded = (updateType & ItemUpdateType.MetadataDownload) == ItemUpdateType.MetadataDownload;

            // If new metadata has been downloaded and save local is on
            if (item.IsSaveLocalMetadataEnabled() && (wasMetadataEdited || wasMetadataDownloaded))
            {
                var trailer = item as Trailer;

                // Don't support local trailers
                if (trailer != null)
                {
                    return !trailer.IsLocalTrailer;
                }

                // Check parent for null to avoid running this against things like video backdrops
                return item is Video && !(item is Episode) && item.Parent != null;
            }

            return false;
        }

        /// <summary>
        /// Saves the image.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="source">The source.</param>
        /// <param name="mimeType">Type of the MIME.</param>
        /// <param name="type">The type.</param>
        /// <param name="imageIndex">Index of the image.</param>
        /// <param name="sourceUrl">The source URL.</param>
        /// <param name="cancellationToken">The cancellation token.</param>
        /// <returns>Task.</returns>
        /// <exception cref="System.ArgumentNullException">mimeType</exception>
        public async Task SaveImage(BaseItem item, Stream source, string mimeType, ImageType type, int? imageIndex, string sourceUrl, CancellationToken cancellationToken)
        {
            if (string.IsNullOrEmpty(mimeType))
            {
                throw new ArgumentNullException("mimeType");
            }

            var saveLocally = item.IsSaveLocalMetadataEnabled() && item.Parent != null && !(item is Audio);

            if (item is IItemByName || item is User)
            {
                saveLocally = true;
            }

            if (type != ImageType.Primary && item is Episode)
            {
                saveLocally = false;
            }

            var locationType = item.LocationType;
            if (locationType == LocationType.Remote || locationType == LocationType.Virtual)
            {
                saveLocally = false;

                var season = item as Season;

                // If season is virtual under a physical series, save locally if using compatible convention
                if (season != null && _config.Configuration.ImageSavingConvention == ImageSavingConvention.Compatible)
                {
                    var series = season.Series;

                    if (series != null)
                    {
                        var seriesLocationType = series.LocationType;
                        if (seriesLocationType == LocationType.FileSystem || seriesLocationType == LocationType.Offline)
                        {
                            saveLocally = true;
                        }
                    }
                }
            }

            if (type == ImageType.Backdrop && imageIndex == null)
            {
                imageIndex = item.BackdropImagePaths.Count;
            }
            else if (type == ImageType.Screenshot && imageIndex == null)
            {
                var hasScreenshots = (IHasScreenshots)item;
                imageIndex = hasScreenshots.ScreenshotImagePaths.Count;
            }

            var index = imageIndex ?? 0;

            var paths = GetSavePaths(item, type, imageIndex, mimeType, saveLocally);

            // If there are more than one output paths, the stream will need to be seekable
            if (paths.Length > 1 && !source.CanSeek)
            {
                var memoryStream = new MemoryStream();
                using (source)
                {
                    await source.CopyToAsync(memoryStream).ConfigureAwait(false);
                }
                memoryStream.Position = 0;
                source = memoryStream;
            }

            var currentPath = GetCurrentImagePath(item, type, index);

            using (source)
            {
                var isFirst = true;

                foreach (var path in paths)
                {
                    // Seek back to the beginning
                    if (!isFirst)
                    {
                        source.Position = 0;
                    }

                    await SaveImageToLocation(source, path, cancellationToken).ConfigureAwait(false);

                    isFirst = false;
                }
            }

//.........这里部分代码省略.........

        private async void SaveMetadataForItem(BaseItem item, ItemUpdateType updateReason)
        {
            var locationType = item.LocationType;
            if (locationType == LocationType.Remote ||
                locationType == LocationType.Virtual)
            {
                return;
            }

            if (!item.SupportsLocalMetadata)
            {
                return;
            }

            if (!item.IsSaveLocalMetadataEnabled())
            {
                return;
            }

            try
            {
                await _providerManager.SaveMetadata(item, updateReason, new[] { BaseNfoSaver.SaverName }).ConfigureAwait(false);
            }
            catch (Exception ex)
            {
                _logger.ErrorException("Error saving metadata for {0}", ex, item.Path ?? item.Name);
            }
        }