C# IHasImages.GetImageDateModified方法代码示例

        /// <summary>
        /// Gets the enhanced image.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="imageType">Type of the image.</param>
        /// <param name="imageIndex">Index of the image.</param>
        /// <returns>Task{System.String}.</returns>
        public async Task<string> GetEnhancedImage(IHasImages item, ImageType imageType, int imageIndex)
        {
            var enhancers = GetSupportedEnhancers(item, imageType).ToList();

            var imagePath = item.GetImagePath(imageType, imageIndex);

            var dateModified = item.GetImageDateModified(imagePath);

            var result = await GetEnhancedImage(imagePath, dateModified, item, imageType, imageIndex, enhancers);

            return result.Item1;
        }

        /// <summary>
        /// Attaches the primary image aspect ratio.
        /// </summary>
        /// <param name="dto">The dto.</param>
        /// <param name="item">The item.</param>
        /// <returns>Task.</returns>
        public void AttachPrimaryImageAspectRatio(IItemDto dto, IHasImages item)
        {
            var path = item.PrimaryImagePath;

            if (string.IsNullOrEmpty(path))
            {
                return;
            }

            // See if we can avoid a file system lookup by looking for the file in ResolveArgs
            var dateModified = item.GetImageDateModified(path);

            ImageSize size;

            try
            {
                size = _imageProcessor.GetImageSize(path, dateModified);
            }
            catch (FileNotFoundException)
            {
                _logger.Error("Image file does not exist: {0}", path);
                return;
            }
            catch (Exception ex)
            {
                _logger.ErrorException("Failed to determine primary image aspect ratio for {0}", ex, path);
                return;
            }

            dto.OriginalPrimaryImageAspectRatio = size.Width / size.Height;

            var supportedEnhancers = _imageProcessor.GetSupportedEnhancers(item, ImageType.Primary).ToList();

            foreach (var enhancer in supportedEnhancers)
            {
                try
                {
                    size = enhancer.GetEnhancedImageSize(item, ImageType.Primary, 0, size);
                }
                catch (Exception ex)
                {
                    _logger.ErrorException("Error in image enhancer: {0}", ex, enhancer.GetType().Name);
                }
            }

            dto.PrimaryImageAspectRatio = size.Width / size.Height;
        }

        /// <summary>
        /// Gets the image cache tag.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="imageType">Type of the image.</param>
        /// <param name="imagePath">The image path.</param>
        /// <returns>Guid.</returns>
        /// <exception cref="System.ArgumentNullException">item</exception>
        public Guid GetImageCacheTag(IHasImages item, ImageType imageType, string imagePath)
        {
            if (item == null)
            {
                throw new ArgumentNullException("item");
            }

            if (string.IsNullOrEmpty(imagePath))
            {
                throw new ArgumentNullException("imagePath");
            }

            var dateModified = item.GetImageDateModified(imagePath);

            var supportedEnhancers = GetSupportedEnhancers(item, imageType);

            return GetImageCacheTag(item, imageType, imagePath, dateModified, supportedEnhancers.ToList());
        }