protected override async Task OnRun()
{
var position = 0;
using (var task = new SingletonReentrantTask(this, ComponentSlots.Database, SingletonReentrantTask.PRIORITY_LOW, async cancellationToken =>
{
var metaDataSource = this.MetaDataSourceFactory.Create();
foreach (var libraryItem in this.LibraryItems)
{
await this.SetDescription(new FileInfo(libraryItem.FileName).Name).ConfigureAwait(false);
await this.SetPosition(position).ConfigureAwait(false);
if (!File.Exists(libraryItem.FileName))
{
Logger.Write(this, LogLevel.Debug, "File \"{0}\" no longer exists: Cannot refresh.", libraryItem.FileName);
continue;
}
libraryItem.MetaDatas = new ObservableCollection <MetaDataItem>(
await metaDataSource.GetMetaData(libraryItem.FileName)
.ConfigureAwait(false));
await this.WriteLibraryMetaData(libraryItem).ConfigureAwait(false);
await LibraryTaskBase.SetLibraryItemStatus(this.Database, libraryItem.Id, LibraryItemStatus.Import).ConfigureAwait(false);
position++;
}
}))
{
await task.Run().ConfigureAwait(false);
}
}
protected override async Task OnRun()
{
var position = 0;
using (var task = new SingletonReentrantTask(this, ComponentSlots.Database, SingletonReentrantTask.PRIORITY_LOW, async cancellationToken =>
{
var metaDataSource = this.MetaDataSourceFactory.Create();
foreach (var libraryItem in this.LibraryItems)
{
if (this.IsCancellationRequested)
{
break;
}
await this.SetDescription(new FileInfo(libraryItem.FileName).Name).ConfigureAwait(false);
await this.SetPosition(position).ConfigureAwait(false);
if (!File.Exists(libraryItem.FileName))
{
Logger.Write(this, LogLevel.Debug, "File \"{0}\" no longer exists: Cannot update.", libraryItem.FileName);
this.Errors.Add(libraryItem, new FileNotFoundException(string.Format("File \"{0}\" no longer exists: Cannot update.", libraryItem.FileName)));
position++;
continue;
}
try
{
await metaDataSource.SetMetaData(
libraryItem.FileName,
libraryItem.MetaDatas,
metaDataItem => this.Names == null || !this.Names.Any() || this.Names.Contains(metaDataItem.Name, true)
).ConfigureAwait(false);
}
catch (Exception e)
{
this.Errors.Add(libraryItem, e);
position++;
continue;
}
foreach (var metaDataItem in libraryItem.MetaDatas.ToArray())
{
if (!string.IsNullOrEmpty(metaDataItem.Value))
{
continue;
}
libraryItem.MetaDatas.Remove(metaDataItem);
}
await this.WriteLibraryMetaData(libraryItem).ConfigureAwait(false);
await LibraryTaskBase.SetLibraryItemStatus(this.Database, libraryItem.Id, LibraryItemStatus.Import).ConfigureAwait(false);
position++;
}
}))
{
await task.Run().ConfigureAwait(false);
}
}
