/// <summary>
/// Initializes a new instance of the MediaUploadControl class.
/// </summary>
public MediaUploadControl()
{
InitializeComponent();
// Initialize upload media
this.bookInfo = new BookInfoUpload();
this.movieInfo = new MovieInfoUpload();
this.albumInfo = new AlbumInfoUpload();
// Initialize selection.
comboBox1.SelectedIndex = 0;
mediaPropertyGrid.SelectedObject = bookInfo;
songsGroupBox.Enabled = false;
// Add the event handlers
songListView.SelectedIndexChanged += this.ListViewSelectionChanged;
songPropertyGrid.PropertyValueChanged += this.SongPropertyGrid_PropertyValueChanged;
comboBox1.SelectedValueChanged += this.ComboBox1_SelectedValueChanged;
BinaryCommuncator.FileUploadedEvent += this.UploadLabel_FileUploaded;
this.publisherCredentials = new Credentials("publishCorp", "7110EDA4D09E062AA5E4A390B0A572AC0D2C0220");
}
/// <author>Kenneth Søhrmann</author>
/// <summary>
/// This method is invoked whenever the "Discard"-button on the form i clicked.
/// It resets the currently displayed media object.
/// </summary>
private void discardButton_Click(object sender, EventArgs e)
{
if (comboBox1.SelectedItem.ToString().Equals("Album"))
{
this.albumInfo = new AlbumInfoUpload();
this.albumInfo.Publisher = this.PublisherAccount.PublisherName;
this.mediaPropertyGrid.SelectedObject = this.albumInfo;
songPropertyGrid.SelectedObject = null;
songListView.Items.Clear();
}
if (comboBox1.SelectedItem.ToString().Equals("Book"))
{
this.bookInfo = new BookInfoUpload();
this.bookInfo.Publisher = this.PublisherAccount.PublisherName;
this.mediaPropertyGrid.SelectedObject = this.bookInfo;
}
if (comboBox1.SelectedItem.ToString().Equals("Movie"))
{
this.movieInfo = new MovieInfoUpload();
this.movieInfo.Publisher = this.PublisherAccount.PublisherName;
this.mediaPropertyGrid.SelectedObject = this.movieInfo;
}
}
/// <author>Kenneth Søhrmann</author>
/// <summary>
/// Convenience method for uploading an album and its songs to the
/// server.
/// The methods blocks during upload.
/// </summary>
/// <param name="credentials">
/// The credentials of the publisher who is uploading the specified album.
/// </param>
/// <param name="songs">
/// A list of SongInfoUpload-objects each representing the metadata of the songs
/// that is a part of the album.
/// </param>
/// <param name="albumInfo">
/// Instance holding the metadata of the album to be uploaded.
/// </param>
/// <exception cref="WebException">
/// Is thrown if the upload of one of the songs or the thumbnail failed.
/// </exception>
/// <exception cref="ArgumentException">
/// Is thrown if the credentials are not authorized.
/// </exception>
public static void UploadAlbum(Credentials credentials, List<SongInfoUpload> songs, AlbumInfoUpload albumInfo)
{
// Check specified song files
foreach (SongInfoUpload song in songs)
{
// If the filepath has not been stated, it is okay.
if (string.IsNullOrEmpty(song.FilePath))
{
continue;
}
if (!File.Exists(song.FilePath))
{
throw new ArgumentException("The file, " + song.FilePath + ", does not exist.");
}
if (!new FileInfo(song.FilePath).Extension.Equals(".mp3"))
{
throw new ArgumentException("The file, " + song.FilePath + ", does not have the supported extension, mp3.");
}
}
var serviceClient = GetServiceClient();
var accountCredentials = new AccountCredentials
{
UserName = credentials.UserName,
HashedPassword = credentials.HashedPassword
};
try
{
serviceClient.ValidateCredentials(accountCredentials);
}
catch (Exception)
{
throw new ArgumentException("Invalid credentials submitted.");
}
var albumMedia = new AlbumInfo()
{
Title = albumInfo.Title,
Type = MediaType.Album,
Genre = albumInfo.Genre,
Price = albumInfo.Price,
Publisher = albumInfo.Publisher,
ReleaseDate = albumInfo.ReleaseDate,
AlbumArtist = albumInfo.AlbumArtist,
Description = albumInfo.Description,
};
int albumMediaId = serviceClient.PublishMedia(albumMedia, accountCredentials);
// Upload the thumbnail of the album.
try
{
UploadThumbnail(albumMediaId, albumInfo, credentials);
}
catch (Exception e)
{
serviceClient.DeleteMedia(albumMediaId, accountCredentials);
throw new WebException("Upload failed: " + e.Message);
}
// For database clean up if upload fails.
var publishedSongs = new List<int>();
// Process each song file; upload data to database, and upload song files to
// server.
foreach (SongInfoUpload songInfo in songs)
{
var songMedia = new SongInfo()
{
Title = songInfo.Title,
Type = MediaType.Song,
Genre = songInfo.Genre,
Price = songInfo.Price,
Publisher = songInfo.Publisher,
ReleaseDate = songInfo.ReleaseDate,
AlbumId = albumMediaId, // Set the album media id to the one received when publishing the album metadata.
Artist = songInfo.Artist,
Duration = songInfo.Duration
};
// publish the metadata of the song to the server.
int songMediaId = serviceClient.PublishMedia(songMedia, accountCredentials);
// For rollback if upload of binary data fails.
publishedSongs.Add(songMediaId);
try
{
if (!string.IsNullOrEmpty(songInfo.FilePath))
{
UploadMediaFile(songInfo.FilePath, songMediaId, credentials);
}
if (songInfo.Thumbnail != null)
{
UploadThumbnail(songMediaId, songInfo, credentials);
}
}
catch (Exception e)
{
// Clean up server database upon upload failure.
foreach (int songId in publishedSongs)
{
serviceClient.DeleteMedia(songId, accountCredentials);
}
serviceClient.DeleteMedia(albumMediaId, accountCredentials);
throw new WebException("Upload failed: " + e.Message);
}
}
}
