/// <summary>
/// Extracts the exif save.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="momento">The momento.</param>
/// <returns>DateTime.</returns>
public DateTime? ExtractExifSave(Stream stream, Momento momento)
{
DateTime? date = null;
using (stream)
{
System.Drawing.Image image = System.Drawing.Image.FromStream(stream);
PropertyItem[] items = image.PropertyItems;
if (items.Length > 0)
{
var exifs = new List<Exif>();
foreach (PropertyItem propertyItem in items)
{
//The below codes output funky strings that won't go into the database.
string[] ignore = { "501b", "5091", "5090", "927c" };
string id = propertyItem.Id.ToString("x");
string value = Encoding.UTF8.GetString(propertyItem.Value);
if (!ignore.Contains(id))
{
var exif = new Exif
{
Momento = momento,
Key = propertyItem.Id.ToString("x"),
Type = propertyItem.Type,
Value = string.IsNullOrWhiteSpace(value) ? string.Empty : value
};
exifs.Add(exif);
}
date = GetDate(id, value, date);
}
SaveExifs(exifs);
}
}
return date;
}
/// <summary>
/// Gets the image configurations.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="format">The format.</param>
/// <param name="mediaMessage">The media message.</param>
/// <param name="momento">The momento.</param>
/// <returns>List{InParameters}.</returns>
private IEnumerable<InParameters> GetImageConfigurations(byte[] bytes, ImageFormat format, Messaging.Models.Media mediaMessage, Momento momento)
{
return new List<InParameters>
{
new InParameters { Bytes = bytes, MomentoMediaType = MomentoMediaType.SmallImage, Format = format, MediaMessage = mediaMessage, MaxHeight = _settings.ImageSmallHeight, MaxWidth = _settings.ImageSmallWidth, Momento = momento},
new InParameters { Bytes = bytes, MomentoMediaType = MomentoMediaType.MediumImage, Format = format, MediaMessage = mediaMessage, MaxHeight = _settings.ImageMediumHeight, MaxWidth = _settings.ImageMediumWidth, Momento = momento},
new InParameters { Bytes = bytes, MomentoMediaType = MomentoMediaType.LargeImage, Format = format, MediaMessage = mediaMessage, MaxHeight = _settings.ImageLargeHeight, MaxWidth = _settings.ImageLargeWidth, Momento = momento},
new InParameters { Bytes = bytes, MomentoMediaType = MomentoMediaType.OriginalImage, Format = format, MediaMessage = mediaMessage, MaxHeight = int.MaxValue, MaxWidth = int.MaxValue, Momento = momento},
};
}
/// <summary>
/// Saves the exif information.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="momento">The momento.</param>
/// <param name="session">The session.</param>
/// <returns>System.Nullable{DateTime}.</returns>
private static DateTime? SaveExifInformation(byte[] bytes, Momento momento, ISession session)
{
var imageMetadata = new ExifData(session);
DateTime? photoDateTime = imageMetadata.ExtractExifSave(new MemoryStream(bytes), momento);
return photoDateTime;
}
/// <summary>
/// Populates the momento object.
/// </summary>
/// <param name="mediaMessage">The media message.</param>
/// <returns>Momento.</returns>
private static Momento PopulateMomentoObject(Messaging.Models.Media mediaMessage)
{
var momento = new Momento
{
InternalId = mediaMessage.Id,
User = new User {Username = mediaMessage.Username},
UploadedBy = mediaMessage.Username,
Visibility = "Public"
};
return momento;
}
/// <summary>
/// Saves the automatic album.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="session">The session.</param>
/// <param name="momento">The momento.</param>
private static void SaveToAlbum(MediaMessage message, ISession session, Momento momento)
{
if (message.AlbumId.HasValue)
{
var album = session.Get<Album>(message.AlbumId);
var albumMomento = new AlbumMomento {Album = album, Momento = momento};
session.Save(albumMomento);
}
}
/// <summary>
/// Saves the media.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="single">The single.</param>
private void SaveMedia(CreateMomentoParameters command, Momento single)
{
command.Media.ForEach(m => m.MomentoId = single.Id);
List<Schema.MomentoMedia> media =
command.Media.ConvertAll(Mapper.DynamicMap<CreateMomentoMediaParameters, Schema.MomentoMedia>);
using (ITransaction transaction = _session.BeginTransaction())
{
foreach (Schema.MomentoMedia momentoMedia in media)
{
momentoMedia.Momento = single;
_session.Save(momentoMedia);
}
transaction.Commit();
}
}
