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https://github.com/trustgraph-ai/trustgraph.git
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Some querying functions work on Neo
This commit is contained in:
Cyber MacGeddon
parent
053fc5511b
commit
737bedc62a
3 changed files with 143 additions and 49 deletions
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@ -53,8 +53,8 @@ dump(resp)
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print("-- po ---------------------------")
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resp = tq.request(
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"http://trustgraph.ai/e/shuttle", "http://trustgraph.ai/e/landed",
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None,
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None, "http://trustgraph.ai/e/landed",
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"on the concrete runway at Kennedy Space Center",
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limit
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)
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dump(resp)
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@ -4,7 +4,8 @@ Triples query service. Input is a (s, p, o) triple, some values may be
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null. Output is a list of triples.
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"""
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from .... direct.cassandra import TrustGraph
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from neo4j import GraphDatabase
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from .... schema import TriplesQueryRequest, TriplesQueryResponse
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from .... schema import Value, Triple
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from .... schema import triples_request_queue
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@ -16,7 +17,10 @@ module = ".".join(__name__.split(".")[1:-1])
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default_input_queue = triples_request_queue
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default_output_queue = triples_response_queue
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default_subscriber = module
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default_graph_host='localhost'
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default_graph_host = 'bolt://localhost:7687'
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default_username = 'neo4j'
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default_password = 'password'
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class Processor(ConsumerProducer):
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@ -26,6 +30,8 @@ class Processor(ConsumerProducer):
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output_queue = params.get("output_queue", default_output_queue)
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subscriber = params.get("subscriber", default_subscriber)
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graph_host = params.get("graph_host", default_graph_host)
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username = params.get("username", default_username)
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password = params.get("passowrd", default_password)
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super(Processor, self).__init__(
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**params | {
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@ -38,9 +44,12 @@ class Processor(ConsumerProducer):
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}
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)
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self.tg = TrustGraph([graph_host])
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self.db = "neo4j"
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self.io = GraphDatabase.driver(graph_host, auth=(username, password))
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def create_value(self, ent):
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if ent.startswith("http://") or ent.startswith("https://"):
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return Value(value=ent, is_uri=True)
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else:
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@ -60,63 +69,135 @@ class Processor(ConsumerProducer):
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if v.s is not None:
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if v.p is not None:
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if v.o is not None:
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resp = self.tg.get_spo(
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v.s.value, v.p.value, v.o.value,
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limit=v.limit
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# SPO
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel {uri: $rel}]->(dest:Literal {value: $value}) "
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"RETURN $src as src",
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src=v.s.value, rel=v.p.value, value=v.o.value,
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database_=self.db,
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)
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triples.append((v.s.value, v.p.value, v.o.value))
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for rec in records:
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triples.append((v.s.value, v.p.value, v.o.value))
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel {uri: $rel}]->(dest:Node {uri: $uri}) "
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"RETURN $src as src",
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src=v.s.value, rel=v.p.value, uri=v.o.value,
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database_=self.db,
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)
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for rec in records:
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triples.append((v.s.value, v.p.value, v.o.value))
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else:
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resp = self.tg.get_sp(
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v.s.value, v.p.value,
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limit=v.limit
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# SP
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel {uri: $rel}]->(dest:Literal) "
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"RETURN dest.value as dest",
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src=v.s.value, rel=v.p.value,
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database_=self.db,
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)
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for t in resp:
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triples.append((v.s.value, v.p.value, t.o))
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, v.p.value, data["dest"]))
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel {uri: $rel}]->(dest:Node) "
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"RETURN dest.uri as dest",
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src=v.s.value, rel=v.p.value,
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database_=self.db,
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)
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, v.p.value, data["dest"]))
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else:
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if v.o is not None:
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resp = self.tg.get_os(
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v.o.value, v.s.value,
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limit=v.limit
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# SO
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel]->(dest:Literal {value: $value}) "
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"RETURN rel.uri as rel",
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src=v.s.value, value=v.o.value,
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database_=self.db,
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)
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for t in resp:
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triples.append((v.s.value, t.p, v.o.value))
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, data["rel"], v.o.value))
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel]->(dest:Node {uri: $uri}) "
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"RETURN rel.uri as rel",
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src=v.s.value, uri=v.o.value,
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database_=self.db,
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)
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, data["rel"], v.o.value))
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else:
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resp = self.tg.get_s(
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v.s.value,
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limit=v.limit
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# S
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel]->(dest:Literal) "
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"RETURN rel.uri as rel, dest.value as dest",
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src=v.s.value,
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database_=self.db,
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)
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for t in resp:
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triples.append((v.s.value, t.p, t.o))
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, data["rel"], data["dest"]))
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records, summary, keys = self.io.execute_query(
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"MATCH (src:Node {uri: $src})-[rel:Rel]->(dest:Node) "
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"RETURN rel.uri as rel, dest.uri as dest",
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src=v.s.value,
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database_=self.db,
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)
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for rec in records:
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data = rec.data()
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triples.append((v.s.value, data["rel"], data["dest"]))
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else:
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if v.p is not None:
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if v.o is not None:
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resp = self.tg.get_po(
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v.p.value, v.o.value,
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limit=v.limit
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)
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for t in resp:
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triples.append((t.s, v.p.value, v.o.value))
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# PO
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pass
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else:
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resp = self.tg.get_p(
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v.p.value,
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limit=v.limit
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)
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for t in resp:
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triples.append((t.s, v.p.value, t.o))
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# P
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pass
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else:
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if v.o is not None:
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resp = self.tg.get_o(
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v.o.value,
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limit=v.limit
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)
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for t in resp:
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triples.append((t.s, t.p, v.o.value))
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# O
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pass
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else:
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resp = self.tg.get_all(
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limit=v.limit
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)
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for t in resp:
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triples.append((t.s, t.p, t.o))
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# *
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pass
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triples = [
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Triple(
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@ -143,8 +224,20 @@ class Processor(ConsumerProducer):
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parser.add_argument(
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'-g', '--graph-host',
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default="localhost",
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help=f'Graph host (default: localhost)'
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default=default_graph_host,
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help=f'Graph host (default: {default_graph_host})'
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)
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parser.add_argument(
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'--username',
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default=default_username,
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help=f'Neo4j username (default: {default_username})'
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)
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parser.add_argument(
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'--password',
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default=default_password,
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help=f'Neo4j password (default: {default_password})'
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)
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def run():
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@ -111,6 +111,7 @@ class Processor(Consumer):
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nodes_created=summary.counters.nodes_created,
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time=summary.result_available_after
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))
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def handle(self, msg):
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v = msg.value()
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