public static List<Album> DoFindAlbums(string artistId, string artistName)
{
string uri = string.Format("http://musicbrainz.org/ws/1/artist/{0}?type=xml&inc=sa-Official+release-events", artistId);
XPathDocument doc = new XPathDocument(uri);
XPathNavigator nav = doc.CreateNavigator();
XmlNamespaceManager nsmgr = new XmlNamespaceManager(nav.NameTable);
string ns = "http://musicbrainz.org/ns/mmd-1.0#";
nsmgr.AddNamespace("mb", ns);
XPathNodeIterator ni = nav.Select("//mb:release", nsmgr);
List<Album> albums = new List<Album>();
while (ni.MoveNext())
{
XPathNavigator current = ni.Current;
Album album = new Album();
album.Artist = artistName;
album.Id = current.GetAttribute("id", string.Empty);
current.MoveToChild("title", ns);
album.Title = HttpUtility.HtmlDecode(current.InnerXml);
current.MoveToParent();
if (current.MoveToChild("asin", ns))
album.Asin = current.InnerXml;
current.MoveToParent();
if (current.MoveToChild("release-event-list", ns))
{
current.MoveToChild("event", ns);
string s = current.GetAttribute("date", string.Empty); // month and day may be missing
album.Date = GetDate(s);
}
current.MoveToChild("title", ns);
albums.Add(album);
}
return albums;
}
public void ShowInfo(Album theAlbum)
{
album = theAlbum;
ShowDetails();
ShowCoverArt();
ShowTracks();
textBoxLyrics.Text = string.Empty;
}
public static void DoGetAlbumDetails(Album album)
{
if (AreCredentialsMissing)
{
if (errorMessageShown) return;
errorMessageShown = true; // so we don't show the message again
MessageBox.Show("To retrieve album details, Music Explorer requires access to the Amazon Associates Web Service. " +
"This service is free, but requires you to register for an associates account. " +
"See http://aws.amazon.com/associates for details. Once you have an account, enter " +
"your Account Number and Access Key ID in the Options->Amazon Credentials dialog box.",
"Not all album details available");
return;
}
ItemLookup search = new ItemLookup();
search.AssociateTag = Properties.Settings.Default.AmazonAwsAccountNumber;
search.AWSAccessKeyId = Properties.Settings.Default.AmazonAwsAccessKeyId;
ItemLookupRequest request = new ItemLookupRequest();
request.ItemId = new string[] { album.Asin };
request.IdType = ItemLookupRequestIdType.ASIN;
request.ResponseGroup = new string[] { "Images", "ItemAttributes", "BrowseNodes" };
search.Request = new ItemLookupRequest[] { request };
ItemLookupResponse response = amazonWebService.ItemLookup(search);
AmazonAws.Items items = response.Items[0];
if (items.Item == null) return;
if (items.Item.Length == 0) return;
AmazonAws.Item item = items.Item[0];
if (item == null) return;
if (item.MediumImage == null)
album.ImageUrl = null;
else
album.ImageUrl = item.MediumImage.URL;
if (item.ItemAttributes != null)
album.Label = item.ItemAttributes.Label;
if (item.ItemAttributes.NumberOfDiscs != null)
album.Discs = int.Parse(item.ItemAttributes.NumberOfDiscs);
album.Genre = GetGenre(item);
}
public static void GetAlbumDetails(Album album)
{
try
{
DoGetAlbumDetails(album);
}
catch (WebException wex)
{
MessageBox.Show(string.Format("A communication error occurred ({0}). The Amazon server might be down.", wex.Status), "Couldn't retrieve album details");
}
catch (Exception ex)
{
MessageBox.Show(string.Format("An error occurred ({0}). The error may have been caused by bad data from the Amazon server.", ex.Message), "Couldn't retrieve album details");
}
}
