/// <summary>
/// Populates a publication object from an OCLC number
/// </summary>
/// <param name="oclcNumber">The OCLC number representing the material</param>
/// <returns>A publication object</returns>
async Task <Publication> FetchPublicationFromOCLCNumber(string oclcNumber)
{
var baseUri = @"http://www.worldcat.org/webservices/catalog/content/";
var queryURI = baseUri + oclcNumber + "?wskey=" + wsKey;
var request = WebRequest.CreateHttp(queryURI);
using (var response = await request.GetResponseAsync()) {
var doc = XDocument.Load(response.GetResponseStream());
var pub = Publication.FromXML(doc);
pub.OCLCNumber = oclcNumber;
try {
var imageUriTasks = from num in await FetchAllOCLCNumbers(oclcNumber)
select GetOCLCCoverImageUriAsync(num);
foreach (var task in imageUriTasks)
{
var uris = await task;
foreach (var uri in uris)
{
try {
var image = await GetBitmapImage(uri);
if (image != null)
{
pub.CoverImage = image;
return(pub);
}
} catch (WebException ex) {
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
}
foreach (var uri in await GetOCLCCoverImageUriAsync(oclcNumber))
{
try {
var image = await GetBitmapImage(uri);
if (image != null)
{
pub.CoverImage = image;
return(pub);
}
} catch (WebException ex) {
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
}
} catch (Exception ex) {
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
pub.CoverImage = DrawPublicationImage(pub.Title, String.Join(", ", pub.Authors));
return(pub);
}
}