private ItemMatch <T1, T2> Append <T>(ItemMatch <T1, T2> match)
{
// Given the generics it very difficult to reduce duplication further here.
if (typeof(T) == typeof(T1) && EqualityComparer <T1> .Default.Equals(match.Result1, default(T1)))
{
var item2Id = ChannelConfig.Type2EndpointConfiguration.TypeConfig.IdExtractor(match.Result2);
var result1 = ChannelConfig.Type1EndpointConfiguration.Endpoint.Read(item2Id);
if (!EqualityComparer <T1> .Default.Equals(result1, default(T1)))
{
return(new ItemMatch <T1, T2>(result1, match.Result2));
}
}
if (typeof(T) == typeof(T2) && EqualityComparer <T2> .Default.Equals(match.Result2, default(T2)))
{
var itemId = ChannelConfig.Type1EndpointConfiguration.TypeConfig.IdExtractor(match.Result1);
var result2 = ChannelConfig.Type2EndpointConfiguration.Endpoint.Read(itemId);
if (!EqualityComparer <T2> .Default.Equals(result2, default(T2)))
{
return(new ItemMatch <T1, T2>(match.Result1, result2));
}
}
return(match);
}
public ItemMatch <T1, T2> Complete(ItemMatch <T1, T2> itemMatch)
{
if (itemMatch.IsComplete)
{
return(itemMatch);
}
if (_completionSourceType == TargetType.T1 && itemMatch.Result1 == null)
{
var result2Id =
_channelConfiguration.Type2EndpointConfiguration.TypeConfig.IdExtractor(itemMatch.Result2);
var oppositeItem = _channelConfiguration.Type1EndpointConfiguration.Endpoint.Read(result2Id);
return(new ItemMatch <T1, T2>(oppositeItem, itemMatch.Result2));
}
if (_completionSourceType == TargetType.T2 && itemMatch.Result2 == null)
{
var result1Id =
_channelConfiguration.Type1EndpointConfiguration.TypeConfig.IdExtractor(itemMatch.Result1);
var oppositeItem = _channelConfiguration.Type2EndpointConfiguration.Endpoint.Read(result1Id);
return(new ItemMatch <T1, T2>(itemMatch.Result1, oppositeItem));
}
// Expecting not to even this this.
return(itemMatch);
}
public ItemMatch <T1, T2> AppendIndividualItem([NotNull] ItemMatch <T1, T2> initial, TargetType appendType = TargetType.T1)
{
if (initial == null)
{
throw new ArgumentNullException(nameof(initial));
}
if (initial.IsComplete)
{
return(initial);
}
if (appendType == TargetType.T1)
{
return(Append <T1>(initial));
}
return(Append <T2>(initial));
}
