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Feature/configure flows (#345)

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- Keeps processing in different flows separate so that data can go to different stores / collections etc.
- Potentially supports different processing flows
- Tidies the processing API with common base-classes for e.g. LLMs, and automatic configuration of 'clients' to use the right queue names in a flow
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cybermaggedon 2025-04-22 20:21:38 +01:00 • committed by GitHub
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125 changed files with 3751 additions and 2628 deletions
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121
trustgraph-flow/trustgraph/query/triples/cassandra/service.py
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@ -7,38 +7,24 @@ null. Output is a list of triples.
from .... direct.cassandra import TrustGraph
from .... schema import TriplesQueryRequest, TriplesQueryResponse, Error
from .... schema import Value, Triple
from .... schema import triples_request_queue
from .... schema import triples_response_queue
from .... base import ConsumerProducer
from .... base import TriplesQueryService
module = ".".join(__name__.split(".")[1:-1])
default_ident = "triples-query"
default_input_queue = triples_request_queue
default_output_queue = triples_response_queue
default_subscriber = module
default_graph_host='localhost'
class Processor(ConsumerProducer):
class Processor(TriplesQueryService):
def __init__(self, **params):
input_queue = params.get("input_queue", default_input_queue)
output_queue = params.get("output_queue", default_output_queue)
subscriber = params.get("subscriber", default_subscriber)
graph_host = params.get("graph_host", default_graph_host)
graph_username = params.get("graph_username", None)
graph_password = params.get("graph_password", None)
super(Processor, self).__init__(
**params | {
"input_queue": input_queue,
"output_queue": output_queue,
"subscriber": subscriber,
"input_schema": TriplesQueryRequest,
"output_schema": TriplesQueryResponse,
"graph_host": graph_host,
"graph_username": graph_username,
"graph_password": graph_password,
}
)
@ -53,92 +39,85 @@ class Processor(ConsumerProducer):
else:
return Value(value=ent, is_uri=False)
async def handle(self, msg):
async def query_triples(self, query):
try:
v = msg.value()
table = (v.user, v.collection)
table = (query.user, query.collection)
if table != self.table:
if self.username and self.password:
self.tg = TrustGraph(
hosts=self.graph_host,
keyspace=v.user, table=v.collection,
keyspace=query.user, table=query.collection,
username=self.username, password=self.password
)
else:
self.tg = TrustGraph(
hosts=self.graph_host,
keyspace=v.user, table=v.collection,
keyspace=query.user, table=query.collection,
)
self.table = table
# Sender-produced ID
id = msg.properties()["id"]
print(f"Handling input {id}...", flush=True)
triples = []
if v.s is not None:
if v.p is not None:
if v.o is not None:
if query.s is not None:
if query.p is not None:
if query.o is not None:
resp = self.tg.get_spo(
v.s.value, v.p.value, v.o.value,
limit=v.limit
query.s.value, query.p.value, query.o.value,
limit=query.limit
)
triples.append((v.s.value, v.p.value, v.o.value))
triples.append((query.s.value, query.p.value, query.o.value))
else:
resp = self.tg.get_sp(
v.s.value, v.p.value,
limit=v.limit
query.s.value, query.p.value,
limit=query.limit
)
for t in resp:
triples.append((v.s.value, v.p.value, t.o))
triples.append((query.s.value, query.p.value, t.o))
else:
if v.o is not None:
if query.o is not None:
resp = self.tg.get_os(
v.o.value, v.s.value,
limit=v.limit
query.o.value, query.s.value,
limit=query.limit
)
for t in resp:
triples.append((v.s.value, t.p, v.o.value))
triples.append((query.s.value, t.p, query.o.value))
else:
resp = self.tg.get_s(
v.s.value,
limit=v.limit
query.s.value,
limit=query.limit
)
for t in resp:
triples.append((v.s.value, t.p, t.o))
triples.append((query.s.value, t.p, t.o))
else:
if v.p is not None:
if v.o is not None:
if query.p is not None:
if query.o is not None:
resp = self.tg.get_po(
v.p.value, v.o.value,
limit=v.limit
query.p.value, query.o.value,
limit=query.limit
)
for t in resp:
triples.append((t.s, v.p.value, v.o.value))
triples.append((t.s, query.p.value, query.o.value))
else:
resp = self.tg.get_p(
v.p.value,
limit=v.limit
query.p.value,
limit=query.limit
)
for t in resp:
triples.append((t.s, v.p.value, t.o))
triples.append((t.s, query.p.value, t.o))
else:
if v.o is not None:
if query.o is not None:
resp = self.tg.get_o(
v.o.value,
limit=v.limit
query.o.value,
limit=query.limit
)
for t in resp:
triples.append((t.s, t.p, v.o.value))
triples.append((t.s, t.p, query.o.value))
else:
resp = self.tg.get_all(
limit=v.limit
limit=query.limit
)
for t in resp:
triples.append((t.s, t.p, t.o))
@ -152,37 +131,17 @@ class Processor(ConsumerProducer):
for t in triples
]
print("Send response...", flush=True)
r = TriplesQueryResponse(triples=triples, error=None)
await self.send(r, properties={"id": id})
print("Done.", flush=True)
return triples
except Exception as e:
print(f"Exception: {e}")
print("Send error response...", flush=True)
r = TriplesQueryResponse(
error=Error(
type = "llm-error",
message = str(e),
),
response=None,
)
await self.send(r, properties={"id": id})
self.consumer.acknowledge(msg)
raise e
@staticmethod
def add_args(parser):
ConsumerProducer.add_args(
parser, default_input_queue, default_subscriber,
default_output_queue,
)
TriplesQueryService.add_args(parser)
parser.add_argument(
'-g', '--graph-host',
@ -205,5 +164,5 @@ class Processor(ConsumerProducer):
def run():
Processor.launch(module, __doc__)
Processor.launch(default_ident, __doc__)