def get_project_information(project_name):
"""
:param project_name: the name of the current project.
:return: the query for general information about the current project.
"""
pypher_object = Pypher()
pypher_object.Match.node('u')
pypher_object.WHERE(__.u.__name__ == project_name)
pypher_object.RETURN('u')
return GenerateQuery.reformat_query(pypher_object)
def get_largest_compilation_unit_query(bundle_name=None, order="mthd"):
"""
:param bundle_name: in entire project or in one specific bundle. Default is in all bundles.
:param order: largest by lines of code (loc) or number of methods (mthd). Default is "mthd".
:return: the query for the largest compilation unit.
'large' in this context means lines of code or number of methods.
It also can be the largest CU in a bundle or in general.
"""
pypher_object = Pypher()
if order == "loc":
pypher_object.Match.node('bundle', labels='bundles')\
.relationship('pkg', labels="Pkg_fragment").node('k')\
.relationship('kl', labels='compiled_By').node('cmp')
if bundle_name:
pypher_object.WHERE(__.bundle.__name__ == bundle_name)
pypher_object.RETURN('cmp')
pypher_object.OrderBy(__.cmp.__Loc__)
return GenerateQuery.reformat_query(pypher_object)
class GenerateQuery:
def __init__(self, tracker):
self.extracted_intents = dict()
self.extracted_values = dict()
self.pypher_object = Pypher()
self.tracker = tracker
def get_simple_query(self):
extracted_intent = self.tracker.latest_message['intent']['name']
if len(self.tracker.latest_message['entities']) > 0:
extracted_value = self.tracker.latest_message['entities'][0][
'value']
extracted_entities = {
self.tracker.latest_message['entities'][index]['entity']:
self.tracker.latest_message['entities'][index]['value']
for index in range(len(
self.tracker.latest_message['entities']))
}
else:
extracted_entities = self.tracker.slots
if len(extracted_entities) <= 0:
return []
if extracted_intent == 'showNodeInformation':
if extracted_entities['node'] is None:
return []
self.pypher_object.Match.node('u').where.u.__name__.CONTAINS(
Param('per_param', extracted_entities['node']))
self.pypher_object.RETURN('u')
elif extracted_intent == 'showAllNodes':
self.pypher_object.Match.node(
'u',
labels=self.get_key_with_none_empty_value(extracted_entities))
self.pypher_object.RETURN('u')
elif extracted_intent == 'countAllNodes':
self.pypher_object.Match.node(
'u',
labels=self.get_key_with_none_empty_value(extracted_entities))
self.pypher_object.RETURN(__.count('u'))
elif extracted_intent == 'showLargestCompilationUnit':
if self.tracker.get_slot('Methods') is not None:
self.pypher_object.Match.node('bundle', labels='bundles').relationship \
('pkg', labels="Pkg_fragment").node('k').relationship \
('kl', labels='compiled_By').node().relationship \
('cp', labels="compiledUnits_topLevelType").node('n').relationship \
('rl', 'Methods_Contains').node('mthd')
self.pypher_object.RETURN('bundle.name', 'n.name',
__.count('mthd'))
self.pypher_object.OrderBy(__.count('mthd'))
else:
self.pypher_object.Match.node('bundle', labels='bundles').relationship \
('pkg', labels="Pkg_fragment").node('k').relationship \
('kl', labels='compiled_By').node('cmp')
if self.tracker.get_slot('bundles') is not None:
self.pypher_object.WHERE(
__.bundle.__name__ == self.tracker.get_slot('bundles'))
self.pypher_object.RETURN('bundle.name', 'cmp.name', 'cmp.Loc')
self.pypher_object.OrderBy(__.cmp.__Loc__)
self.pypher_object.Desc()
self.pypher_object.Limit(1)
elif extracted_intent == 'showDetailInfoBundles':
bundle_name = None
key_value = None
# iterate through all entities
for key, value in self.tracker.slots.items():
# key_value is assigned according to relation names
if key == 'bundles':
bundle_name = value
elif key == 'imports' or key == 'Exports':
key_value = value
elif key == 'packages':
key_value = 'uses_pkgs'
elif key == 'components':
key_value = 'uses_components'
elif key == 'compilationUnit':
key_value = 'compiled_By'
elif key == 'Methods':
key_value = 'Methods_Contains'
# this is relation name
if key_value == 'compiled_By':
self.pypher_object.Match.node('u', labels='bundles').relationship \
('f', labels="Pkg_fragment").node('n').relationship \
('c', labels="compiled_By").node("m")
elif key_value == 'Methods_Contains':
self.pypher_object.Match.node('u', labels='bundles').relationship \
('pkg', labels="Pkg_fragment").node('k').relationship \
('kl', labels='compiled_By').node('n').relationship \
('r', labels='compiledUnits_topLevelType').node('nl').relationship \
('rl', labels='Methods_Contains').node('m')
else:
self.pypher_object.Match.node('u', labels='bundles').relationship \
('r', labels=key_value).node('m')
self.pypher_object.WHERE(__.u.__name__ == bundle_name)
# this can be changed according to req. if we need all info or just names of packages
# query = str(self.pypherObject.RETURN('u.name', 'm.name'))
self.pypher_object.RETURN('u.name', 'm.name')
elif self.extracted_intents == 'showProjectInformation':
self.pypher_object.Match.node('u')
self.pypher_object.WHERE(
__.u.__name__ == self.tracker.get_slot('bundles'))
self.pypher_object.RETURN('u')
else:
if extracted_value is not None:
self.pypher_object.Match.node(
'u', labels=extracted_entities).WHERE.u.property(
'name') == extracted_value
self.pypher_object.RETURN('u')
query = str(self.pypher_object)
params = self.pypher_object.bound_params
return [query, params, extracted_intent]
@staticmethod
def get_key_with_none_empty_value(entities_dict):
for key, value in entities_dict.items():
print('key: ' + key)
if value:
print('value: ' + value)
if key != "project":
return key
return {}
def convert_text_to_query(self):
error = None
[query, params, extracted_intent] = self.get_simple_query()
if query is None or params is None or extracted_intent is None:
error = "no Query written regarding this intention or intent prediction is not valid"
return [query, params, self.tracker.latest_message['intent'], error]
def save_relationship(self, entity, ensure_unique=False):
"""this method handles creating and saving relationships.
It will hanle quite a few situations.
Given the structure:
(start)-[rel]->[end]
We can have:
* A new start node
* An existing start node
* A new rel
* An existing rel
* A new end node
* An existing end node
Each start, rel, and end could have uniqueness assigned to it
* start/end could have unique properties
* rel could have unique relationships
A Chyper query should be generated that looks something like this,
depending on the settings for each of the nodes:
MERGE (n_0:Node {`key`: val})
ON CREATE SET n_0.key = val, n_0.key2 = val2
ON MATCH SET n_0.key = val, n_0.key2 = val2
CREATE (n_0)-[r_0:RelLabel, {`key`: someVal}]->(n_1:Node {`key`: val})
RETURN n_0, n_1, r_0
"""
start = entity.start
start_properties = {}
end = entity.end
end_properties = {}
props = self._properties(entity)
if start is None or end is None:
raise Exception('The relationship must have a start and end node')
if not isinstance(start, Node):
start = Node(id=start)
if not isinstance(end, Node):
end = Node(id=end)
VM.set_query_var(start)
VM.set_query_var(end)
VM.set_query_var(entity)
rel = Pypher()
if start not in self.matched_entities:
if start.id is not None:
self._update_properties(start)
self.matches.append(self._node_by_id(start))
else:
start_properties = self._properties(start)
self.matched_entities.append(start)
self.returns.append(start.query_variable)
if end not in self.matched_entities:
if end.id is not None:
self._update_properties(end)
self.matches.append(self._node_by_id(end))
else:
end_properties = self._properties(end)
self.matched_entities.append(end)
self.returns.append(end.query_variable)
if entity.id is None:
if start.id is not None:
rel = rel.node(start.query_variable)
else:
start_query = Query(start, self.params)
start_query.build_save_pypher()
if len(start_query.creates):
rel.append(*start_query.creates)
elif len(start_query.merges):
has_matches = len(self.matches) > 0
start_merge = Pypher()
start_merge.MERGE(*start_query.merges)
if start_query.on_create_sets:
start_merge.OnCreateSet(*start_query.on_create_sets)
if start_query.on_match_sets:
start_merge.OnMatchSet(*start_query.on_match_sets)
self.before_matches.append(start_merge)
rel.node(start.query_variable)
rel.rel(entity.query_variable,
labels=entity.labels,
direction='out',
**props)
if end.id is not None:
rel.node(end.query_variable)
else:
end_query = Query(end, self.params)
end_query.build_save_pypher()
if len(end_query.creates):
rel.append(*end_query.creates)
elif len(end_query.merges):
end_merge = Pypher().MERGE(*end_query.merges)
if end_query.on_create_sets:
end_merge.OnCreateSet(*end_query.on_create_sets)
if end_query.on_match_sets:
end_merge.OnMatchSet(*end_query.on_match_sets)
self.before_matches.append(end_merge)
rel.node(end.query_variable)
if ensure_unique:
self.merges.append(rel)
else:
self.creates.append(rel)
else:
_id = VM.get_next(entity, 'id')
_id = Param(_id, entity.id)
if start.id is not None:
rel = rel.node(start.query_variable)
else:
start_query = Query(start, self.params)
start_query.build_save_pypher()
if len(start_query.creates):
rel.append(*start_query.creates)
elif len(start_query.merges):
start_merge = Pypher().MERGE(*start_query.merges)
if start_query.on_create_sets:
start_merge.OnCreateSet(*start_query.on_create_sets)
if start_query.on_match_sets:
start_merge.OnMatchSet(*start_query.on_match_sets)
if len(self.matches):
self.matches[-1].append(start_merge)
else:
self.matches.append(start_merge)
rel.node(start.query_variable)
rel.rel(entity.query_variable,
labels=entity.labels,
direction='out')
if end.id is not None:
rel.node(end.query_variable)
else:
end_query = Query(end, self.params)
end_query.build_save_pypher()
if len(end_query.creates):
rel.append(*end_query.creates)
elif len(end_query.merges):
end_merge = Pypher().MERGE(*end_query.merges)
if end_query.on_create_sets:
end_merge.OnCreateSet(*end_query.on_create_sets)
if end_query.on_match_sets:
end_merge.OnMatchSet(*end_query.on_match_sets)
if len(self.matches):
self.matches[-1].append(end_merge)
else:
self.matches.append(end_merge)
rel.node(end.query_variable)
rel.WHERE(__.ID(entity.query_variable) == _id)
self._update_properties(entity)
self.matches.append(rel)
self.returns.append(entity.query_variable)
return self
