/// <summary>
/// Queue a download action.
/// </summary>
/// <param name="client">Source remote client.</param>
/// <param name="dataStore">Destination data source.</param>
public void QueueDownload(RemoteClient client, DataStore dataStore)
{
if (_downloadActions.Count(x => x.Client.Address.RawUrl == client.Address.RawUrl) > 0 && _downloadActions.Count(x => x.Store.Location == dataStore.Location) > 0)
{
throw new InvalidOperationException("This operation is already queued");
}
DownloadAction action = new DownloadAction(client, dataStore);
_downloadActions.Add(action);
action.DownloadStarted += action_DownloadStarted;
action.DownloadFailed += action_DownloadFailed;
action.DownloadCompleted += action_DownloadCompleted;
}
/// <summary>
/// Starts the download process.
/// </summary>
public virtual void Start()
{
if (IsDownloading)
{
throw new InvalidOperationException("Download Already in Progress!");
}
onDownloadStarted(new DownloadEventArgs(_downloadActions.Count));
IsDownloading = true;
foreach (var item in _downloadActions)
{
_currentAction = item;
item.Start();
}
IsDownloading = !IsDownloading;
onDownloadCompleted(new DownloadEventArgs(_downloadActions.Count, _itemsCompleted, _itemsFailed));
}
/// <summary>
/// Creates a new DataDownloader instance
/// </summary>
internal DataDownloader()
{
_downloadActions = new List <DownloadAction>();
_itemsCompleted = 0; _itemsFailed = 0;
_currentAction = null;
}