/// <summary>
/// Helper, automates the loading of sources items from DB.
/// </summary>
/// <param name="source"></param>
void LoadSourceItemsFromPersistence(EventSource source)
{
List <EventBase> items =
_persistenceHelper.SelectDynamicType <EventBase>(new MatchExpression("SourceId", source.Id), null);
Dictionary <string, List <EventBase> > itemsByChannel = new Dictionary <string, List <EventBase> >();
foreach (RssNewsEvent item in items)
{
item.Channel = source.GetChannelByName(item.ChannelId, true);
if (itemsByChannel.ContainsKey(item.ChannelId) == false)
{
itemsByChannel.Add(item.ChannelId, new List <EventBase>());
}
itemsByChannel[item.ChannelId].Add(item);
}
foreach (string name in itemsByChannel.Keys)
{
// Handle the relation to persistence.
EventSourceChannel channel = source.GetChannelByName(name, false);
channel.AddItems(itemsByChannel[name]);
}
}
/// <summary>
///
/// </summary>
public void Initialize(Platform platform)
{
SystemMonitor.CheckWarning(NewsSourcesUnsafe.Count == 0, "Manager already has assigned sources.");
_platform = platform;
_persistenceHelper = CreatePersistenceHelper(platform.Settings);
if (_persistenceHelper == null)
{
SystemMonitor.Error("Failed to initialize the persistence helper for Platform News Manager.");
return;
}
// Make sure this load is before the accept events, so that they do not cause adding failure.
List <EventSource> sources = _persistenceHelper.SelectDynamicType <EventSource>(null, null);
base.SourceAddedEvent += new NewsSourceUpdateDelegate(PlatformNewsManager_SourceAddedEvent);
base.SourceRemovedEvent += new NewsSourceUpdateDelegate(PlatformNewsManager_SourceRemovedEvent);
if (sources != null)
{
foreach (EventSource source in sources)
{ // Add the source to subscribe to it, than load items.
base.AddSource(source);
if (source.Enabled)
{
LoadSourceItemsFromPersistence(source);
}
}
}
if (platform != null)
{// Load the default sources.
foreach (string feedAddress in platform.Settings.DefaultRSSFeeds)
{
if (GetSourceByAddress(feedAddress) == null)
{
RssNewsSource newSource = new RssNewsSource();
newSource.Initialize(feedAddress);
AddSource(newSource);
}
}
}
GeneralHelper.FireAndForget(UpdateFeeds);
}
/// <summary>
///
/// </summary>
public void Initialize(Platform platform)
{
SystemMonitor.CheckWarning(NewsSourcesUnsafe.Count == 0, "Manager already has assigned sources.");
_platform = platform;
_persistenceHelper = CreatePersistenceHelper(platform.Settings);
if (_persistenceHelper == null)
{
SystemMonitor.Error("Failed to initialize the persistence helper for Platform News Manager.");
return;
}
// Make sure this load is before the accept events, so that they do not cause adding failure.
List<EventSource> sources = _persistenceHelper.SelectDynamicType<EventSource>(null, null);
base.SourceAddedEvent += new NewsSourceUpdateDelegate(PlatformNewsManager_SourceAddedEvent);
base.SourceRemovedEvent += new NewsSourceUpdateDelegate(PlatformNewsManager_SourceRemovedEvent);
if (sources != null)
{
foreach (EventSource source in sources)
{// Add the source to subscribe to it, than load items.
base.AddSource(source);
if (source.Enabled)
{
LoadSourceItemsFromPersistence(source);
}
}
}
if (platform != null)
{// Load the default sources.
foreach (string feedAddress in platform.Settings.DefaultRSSFeeds)
{
if (GetSourceByAddress(feedAddress) == null)
{
RssNewsSource newSource = new RssNewsSource();
newSource.Initialize(feedAddress);
AddSource(newSource);
}
}
}
GeneralHelper.FireAndForget(UpdateFeeds);
}
