public void CopyTo(AbstractSource outputSource)
{
outputSource.SetMetaData(this.MetaData);
outputSource.SetProviderID(this.ProviderID);
outputSource.SetSourceName(this.SourceName);
}
/// <summary>
/// Actual logic for checking for updates.
/// This is usually run from separate threads by UpdateItems
/// </summary>
/// <param name="p"></param>
/// <param name="s"></param>
/// <param name="addedItems"></param>
private void DoItemsCheck(IProvider p, AbstractSource s, List <IDataItem> addedItems)
{
try
{
DateTime start = DateTime.Now;
var results = p.CheckForNewItems(s);
if (results != null)
{
results = dataStore.AddItems(results);
addedItems.AddRange(results);
}
DateTime end = DateTime.Now;
TimeSpan ts = end - start;
AddMessage(String.Format("Source: {0}, New Items: {1}, Total Time: {2}",
s.GetDisplayName(),
results == null ? 0 : results.Count,
(int)ts.TotalSeconds + " seconds"));
}
catch (Exception e)
{
AddMessage(String.Format("Source: {0}, Error: {1}",
s.GetDisplayName(), e.Message));
}
}
public AbstractSource AddSource(AbstractSource source)
{
if (sources.Contains(source))
{
throw new Exception("Source already exists.");
}
else if (source.ID != null)
{
throw new Exception("Source should not have ID");
}
else
{
try
{
sources.Add(source);
DoInsertSource(source);
if (source.ID == null)
{
throw new Exception("Logic error, expected DataStore to set ID");
}
}
catch (Exception e)
{
sources.RemoveAt(sources.Count - 1);
throw;
}
return(source);
}
}
public void RemoveSource(AbstractSource source)
{
bool removed = sources.Remove(source);
if (removed)
{
RemoveFromDataStore(source);
}
}
public List <AbstractItem> CheckForNewItems(AbstractSource source)
{
if (this.providerId != source.ProviderID)
{
return(null); //throw new Exception(String.Format("Source is not supported by this provider."));
}
else
{
return(GetNewItems(source));
}
}
private bool IsEqual(AbstractSource that)
{
return(this.ProviderID == that.ProviderID &&
this.SourceName == that.SourceName);
}
public abstract void RemoveFromDataStore(AbstractSource source);
protected abstract void DoUpdateSource(AbstractSource source);
public void UpdateSource(AbstractSource source)
{
DoUpdateSource(source);
}
/// <summary> /// Insert the Source into the actual data store. /// This function should set the ID on the source object /// </summary> /// <param name="source"></param> protected abstract void DoInsertSource(AbstractSource source);
public virtual AbstractSource CastSource(AbstractSource src)
{
return(src);
}
public bool CanCheck(AbstractSource source)
{
return(source.ProviderID == this.providerId);
}
protected abstract List <AbstractItem> GetNewItems(AbstractSource source);