Re-implement HCBF

pydtn/community.py

@@ -343,4 +343,36 @@ class HCBFNode(CommunityNode):
         if forward:
             return forward
 
+        dest = packet.destination
+
+        if self.community is not dest.community:
+            if self.out_community_neighbours:
+                cbc = lambda n: self._community.community_betweenness(n, dest)
+                target = _decide(self,
+                                 self.out_community_neighbours,
+                                 cbc)
+                if not (target is None or target is self):
+                    return {target: 'community-betweenness'}
+
+            if self.in_community_neighbours:
+                ncf = lambda n: self._community.nodal_contribution(n, dest)
+                target = _decide(self,
+                                 self.in_community_neighbours,
+                                 ncf)
+                if not (target is None or target is self):
+                    return {target: 'nodal-contribution'}
+
+        if self.in_community_neighbours:
+            target = _decide(self,
+                             self.in_community_neighbours,
+                             self._community.unique_interactions)
+            if not (target is None or target is self):
+                return {target: 'unique-interactions'}
+
+            target = _decide(self,
+                             self.in_community_neighbours,
+                             self._community.local_popularity)
+            if not (target is None or target is self):
+                return {target: 'local-popularity'}
+
         return {}