public Task Insert(FactContext <T> context)
{
return(context.WorkingMemory.Access(this, x =>
{
x.Add(context.Fact);
return _sinks.All(sink => sink.Insert(context));
}));
}
Task IFactSink.Insert <T>(FactContext <T> context)
{
if (!_typeNodes.ContainsKey(typeof(T)))
{
GetTypeNode <T>();
}
return(Task.WhenAll(_typeNodes.Values.Select(x => x.FactSink.Insert(context))));
}
protected Task Matching(FactContext <TRight> context, Func <TupleContext <TLeft>, Task> callback)
{
return(_leftSource.All(context, async tupleContext =>
{
var match = await Evaluate(context, tupleContext.Tuple, context.Fact).ConfigureAwait(false);
if (match)
{
await callback(new SessionTupleContext <TLeft>(context, tupleContext.Tuple)).ConfigureAwait(false);
}
}));
}
public virtual Task Insert(FactContext <TRight> context)
{
return(_leftSource.All(context, async tupleContext =>
{
var match = await Evaluate(context, tupleContext.Tuple, context.Fact).ConfigureAwait(false);
if (match)
{
await MemoryNode.Insert(context, tupleContext.Tuple, context.Fact).ConfigureAwait(false);
}
}));
}
public virtual async Task Insert(FactContext <TFact> context)
{
using (_log.BeginTypeScope(GetType()))
{
if (Evaluate(context))
{
await _childNodes.All(node => node.Insert(context)).ConfigureAwait(false);
await _memoryNode.Value.Insert(context).ConfigureAwait(false);
}
}
}
async Task IFactSink.Insert <T>(FactContext <T> factContext)
{
var typeContext = factContext as FactContext <TFact>;
if (typeContext == null)
{
return;
}
try
{
await _observers.PreInsert(typeContext).ConfigureAwait(false);
await Insert(typeContext).ConfigureAwait(false);
await _observers.PostInsert(typeContext).ConfigureAwait(false);
}
catch (Exception exception)
{
await _observers.InsertFault(typeContext, exception).ConfigureAwait(false);
throw;
}
}
public bool Evaluate(FactContext <T> context)
{
return(_condition(context.Fact));
}
public Task InsertFault <T>(FactContext <T> fact, Exception exception) where T : class
{
return(Console.Out.WriteLineAsync($"InsertFault:{typeof(T).Name}:{exception}"));
}
public Task PostInsert <T>(FactContext <T> fact) where T : class
{
return(Console.Out.WriteLineAsync($"PostInsert:{typeof(T).Name}"));
}
public Task InsertFault(FactContext <TFact> context, Exception exception)
{
return(_observer.InsertFault(context, exception));
}
public Task PostInsert(FactContext <TFact> context)
{
return(_observer.PostInsert(context));
}
protected override bool Evaluate(FactContext <T> context)
{
return(_condition.Evaluate(context));
}
protected virtual bool Evaluate(FactContext <TFact> context)
{
return(true);
}
public Task InsertFault <T>(FactContext <T> fact, Exception exception)
where T : class
{
return(ForEachAsync(x => x.InsertFault(fact, exception)));
}
public Task PostInsert <T>(FactContext <T> fact)
where T : class
{
return(ForEachAsync(x => x.PostInsert(fact)));
}
protected override bool Evaluate(FactContext <T> context)
{
return(_matches(context.Fact));
}