diff options
Diffstat (limited to 'app/discover/clique_finder.py')
| -rw-r--r-- | app/discover/clique_finder.py | 138 |
1 files changed, 76 insertions, 62 deletions
diff --git a/app/discover/clique_finder.py b/app/discover/clique_finder.py index 57b2e3b..4d68eb4 100644 --- a/app/discover/clique_finder.py +++ b/app/discover/clique_finder.py @@ -48,61 +48,53 @@ class CliqueFinder(Fetcher): self.find_cliques_for_type(clique_type) self.log.info("finished scanning for cliques") - # Calculate priority score + # Calculate priority score for clique type per environment and configuration def _get_priority_score(self, clique_type): + # environment-specific clique type takes precedence if self.env == clique_type['environment']: + return 16 + if (self.env_config['distribution'] == clique_type.get('distribution') + and + self.env_config['distribution_version'] == + clique_type.get('distribution_version')): + return 8 + if clique_type.get('mechanism_drivers') \ + in self.env_config['mechanism_drivers']: return 4 - if (self.env_config['distribution'] == clique_type.get('distribution') and - self.env_config['distribution_version'] == clique_type.get('distribution_version')): - return 3 - if clique_type.get('mechanism_drivers') in self.env_config['mechanism_drivers']: - return 2 if self.env_config['type_drivers'] == clique_type.get('type_drivers'): + return 2 + if clique_type.get('environment', '') == 'ANY': + # environment=ANY serves as fallback option, but it's not mandatory return 1 else: return 0 # Get clique type with max priority - # for given environment configuration and focal point type - def _get_clique_type(self, focal_point, clique_types): - # If there's no configuration match for the specified environment, - # we use the default clique type definition with environment='ANY' - fallback_type = next( - filter(lambda t: t['environment'] == 'ANY', clique_types), - None - ) - if not fallback_type: - raise ValueError("No fallback clique type (ANY) " - "defined for focal point type '{}'" - .format(focal_point)) - - clique_types.remove(fallback_type) - - priority_scores = [self._get_priority_score(clique_type) - for clique_type - in clique_types] - max_score = max(priority_scores) if priority_scores else 0 - - return (fallback_type - if max_score == 0 - else clique_types[priority_scores.index(max_score)]) + # for given focal point type + def _get_clique_type(self, clique_types): + scored_clique_types = [{'score': self._get_priority_score(clique_type), + 'clique_type': clique_type} + for clique_type in clique_types] + max_score = max(scored_clique_types, key=lambda t: t['score']) + if max_score['score'] == 0: + self.log.warn('No matching clique types for focal point type: {}' + .format(clique_types[0].get('focal_point_type'))) + return None + return max_score.get('clique_type') def get_clique_types(self): if not self.clique_types_by_type: - clique_types_by_focal_point = self.clique_types.aggregate([{ - "$group": { - "_id": "$focal_point_type", - "types": {"$push": "$$ROOT"} - } - }]) - - self.clique_types_by_type = { - cliques['_id']: self._get_clique_type(cliques['_id'], - cliques['types']) - for cliques in - clique_types_by_focal_point - } - + clique_types_candidates = {} + for clique in self.clique_types.find({}): + fp_type = clique.get('focal_point_type', '') + if not clique_types_candidates.get(fp_type): + clique_types_candidates[fp_type] = [] + clique_types_candidates[fp_type].append(clique) + for t in clique_types_candidates.keys(): + selected = self._get_clique_type(clique_types_candidates[t]) + if not selected: + continue + self.clique_types_by_type[t] = selected return self.clique_types_by_type def find_cliques_for_type(self, clique_type): @@ -125,11 +117,14 @@ class CliqueFinder(Fetcher): .find_one({"focal_point_type": o['type']}) constraints = [] if not constraint else constraint["constraints"] clique_types = self.get_clique_types() - clique_type = clique_types[o['type']] - new_clique = self.construct_clique_for_focal_point(o, clique_type, - constraints) - if not new_clique: + clique_type = clique_types.get(o['type']) + if not clique_type: self.cliques.delete({'_id': clique['_id']}) + else: + new_clique = self.construct_clique_for_focal_point(o, clique_type, + constraints) + if not new_clique: + self.cliques.delete({'_id': clique['_id']}) def construct_clique_for_focal_point(self, o, clique_type, constraints): # keep a hash of nodes in clique that were visited for each type @@ -146,12 +141,15 @@ class CliqueFinder(Fetcher): for c in constraints: val = o[c] if c in o else None clique["constraints"][c] = val + allow_implicit = clique_type.get('use_implicit_links', False) for link_type in clique_type["link_types"]: - self.check_link_type(clique, link_type, nodes_of_type) + self.check_link_type(clique, link_type, nodes_of_type, + allow_implicit=allow_implicit) # after adding the links to the clique, create/update the clique if not clique["links"]: return None + clique["clique_type"] = clique_type["_id"] focal_point_obj = self.inventory.find({"_id": clique["focal_point"]}) if not focal_point_obj: return None @@ -198,25 +196,32 @@ class CliqueFinder(Fetcher): '-'.join(link_type_parts) return CliqueFinder.link_type_reversed.get(link_type) - def check_link_type(self, clique, link_type, nodes_of_type): + def check_link_type(self, clique, link_type, nodes_of_type, + allow_implicit=False): # check if it's backwards link_type_reversed = self.get_link_type_reversed(link_type) # handle case of links like T<-->T self_linked = link_type == link_type_reversed use_reversed = False if not self_linked: - matches = self.links.find_one({ + link_search_condition = { "environment": self.env, "link_type": link_type_reversed - }) + } + if not allow_implicit: + link_search_condition['implicit'] = False + matches = self.links.find_one(link_search_condition) use_reversed = True if matches else False if self_linked or not use_reversed: - self.check_link_type_forward(clique, link_type, nodes_of_type) + self.check_link_type_forward(clique, link_type, nodes_of_type, + allow_implicit=allow_implicit) if self_linked or use_reversed: - self.check_link_type_back(clique, link_type, nodes_of_type) + self.check_link_type_back(clique, link_type, nodes_of_type, + allow_implicit=allow_implicit) def check_link_type_for_direction(self, clique, link_type, nodes_of_type, - is_reversed=False): + is_reversed=False, + allow_implicit=False): if is_reversed: link_type = self.get_link_type_reversed(link_type) from_type = link_type[:link_type.index("-")] @@ -233,7 +238,8 @@ class CliqueFinder(Fetcher): clique, link_type, side_to_match, - other_side) + other_side, + allow_implicit=allow_implicit) nodes_to_add = nodes_to_add | matches if other_side_type not in nodes_of_type: nodes_of_type[other_side_type] = set() @@ -241,13 +247,17 @@ class CliqueFinder(Fetcher): nodes_of_type[other_side_type] | nodes_to_add def find_matches_for_point(self, match_point, clique, link_type, - side_to_match, other_side) -> set: + side_to_match, other_side, + allow_implicit=False) -> set: nodes_to_add = set() - matches = self.links.find({ + link_search_condition = { "environment": self.env, "link_type": link_type, side_to_match: ObjectId(match_point) - }) + } + if not allow_implicit: + link_search_condition['implicit'] = False + matches = self.links.find(link_search_condition) for link in matches: link_id = link["_id"] if link_id in clique["links"]: @@ -260,10 +270,14 @@ class CliqueFinder(Fetcher): nodes_to_add.add(other_side_point) return nodes_to_add - def check_link_type_forward(self, clique, link_type, nodes_of_type): + def check_link_type_forward(self, clique, link_type, nodes_of_type, + allow_implicit=False): self.check_link_type_for_direction(clique, link_type, nodes_of_type, - is_reversed=False) + is_reversed=False, + allow_implicit=allow_implicit) - def check_link_type_back(self, clique, link_type, nodes_of_type): + def check_link_type_back(self, clique, link_type, nodes_of_type, + allow_implicit=False): self.check_link_type_for_direction(clique, link_type, nodes_of_type, - is_reversed=True) + is_reversed=True, + allow_implicit=allow_implicit) |