private IEnumerable <Path> InternalPaths(Node start, Node end, bool stopAsap)
{
_lastMetadata = new Metadata();
if (start.Equals(end))
{
return(FilterPaths(Collections.singletonList(PathImpl.singular(start))));
}
Hits hits = new Hits();
ICollection <long> sharedVisitedRels = new HashSet <long>();
MutableInt sharedFrozenDepth = new MutableInt(Null); // ShortestPathLengthSoFar
MutableBoolean sharedStop = new MutableBoolean();
MutableInt sharedCurrentDepth = new MutableInt(0);
using (DirectionData startData = new DirectionData(this, start, sharedVisitedRels, sharedFrozenDepth, sharedStop, sharedCurrentDepth, _expander), DirectionData endData = new DirectionData(this, end, sharedVisitedRels, sharedFrozenDepth, sharedStop, sharedCurrentDepth, _expander.reverse()))
{
while (startData.MoveNext() || endData.MoveNext())
{
GoOneStep(startData, endData, hits, startData, stopAsap);
GoOneStep(endData, startData, hits, startData, stopAsap);
}
ICollection <Hit> least = hits.Least();
return(least != null?FilterPaths(HitsToPaths( least, start, end, stopAsap, _maxResultCount )) : Collections.emptyList());
}
}