trustgraph/trustgraph-flow/trustgraph/query/graph_embeddings/milvus/service.py
cybermaggedon d35473f7f7
feat: workspace-based multi-tenancy, replacing user as tenancy axis (#840)
Introduces `workspace` as the isolation boundary for config, flows,
library, and knowledge data. Removes `user` as a schema-level field
throughout the code, API specs, and tests; workspace provides the
same separation more cleanly at the trusted flow.workspace layer
rather than through client-supplied message fields.

Design
------
- IAM tech spec (docs/tech-specs/iam.md) documents current state,
  proposed auth/access model, and migration direction.
- Data ownership model (docs/tech-specs/data-ownership-model.md)
  captures the workspace/collection/flow hierarchy.

Schema + messaging
------------------
- Drop `user` field from AgentRequest/Step, GraphRagQuery,
  DocumentRagQuery, Triples/Graph/Document/Row EmbeddingsRequest,
  Sparql/Rows/Structured QueryRequest, ToolServiceRequest.
- Keep collection/workspace routing via flow.workspace at the
  service layer.
- Translators updated to not serialise/deserialise user.

API specs
---------
- OpenAPI schemas and path examples cleaned of user fields.
- Websocket async-api messages updated.
- Removed the unused parameters/User.yaml.

Services + base
---------------
- Librarian, collection manager, knowledge, config: all operations
  scoped by workspace. Config client API takes workspace as first
  positional arg.
- `flow.workspace` set at flow start time by the infrastructure;
  no longer pass-through from clients.
- Tool service drops user-personalisation passthrough.

CLI + SDK
---------
- tg-init-workspace and workspace-aware import/export.
- All tg-* commands drop user args; accept --workspace.
- Python API/SDK (flow, socket_client, async_*, explainability,
  library) drop user kwargs from every method signature.

MCP server
----------
- All tool endpoints drop user parameters; socket_manager no longer
  keyed per user.

Flow service
------------
- Closure-based topic cleanup on flow stop: only delete topics
  whose blueprint template was parameterised AND no remaining
  live flow (across all workspaces) still resolves to that topic.
  Three scopes fall out naturally from template analysis:
    * {id} -> per-flow, deleted on stop
    * {blueprint} -> per-blueprint, kept while any flow of the
      same blueprint exists
    * {workspace} -> per-workspace, kept while any flow in the
      workspace exists
    * literal -> global, never deleted (e.g. tg.request.librarian)
  Fixes a bug where stopping a flow silently destroyed the global
  librarian exchange, wedging all library operations until manual
  restart.

RabbitMQ backend
----------------
- heartbeat=60, blocked_connection_timeout=300. Catches silently
  dead connections (broker restart, orphaned channels, network
  partitions) within ~2 heartbeat windows, so the consumer
  reconnects and re-binds its queue rather than sitting forever
  on a zombie connection.

Tests
-----
- Full test refresh: unit, integration, contract, provenance.
- Dropped user-field assertions and constructor kwargs across
  ~100 test files.
- Renamed user-collection isolation tests to workspace-collection.
2026-04-21 23:23:01 +01:00

102 lines
2.7 KiB
Python
Executable file

"""
Graph embeddings query service. Input is vector, output is list of
entities
"""
import logging
from .... direct.milvus_graph_embeddings import EntityVectors
from .... schema import GraphEmbeddingsResponse, EntityMatch
from .... schema import Error, Term, IRI, LITERAL
from .... base import GraphEmbeddingsQueryService
# Module logger
logger = logging.getLogger(__name__)
default_ident = "graph-embeddings-query"
default_store_uri = 'http://localhost:19530'
class Processor(GraphEmbeddingsQueryService):
def __init__(self, **params):
store_uri = params.get("store_uri", default_store_uri)
super(Processor, self).__init__(
**params | {
"store_uri": store_uri,
}
)
self.vecstore = EntityVectors(store_uri)
def create_value(self, ent):
if ent.startswith("http://") or ent.startswith("https://"):
return Term(type=IRI, iri=ent)
else:
return Term(type=LITERAL, value=ent)
async def query_graph_embeddings(self, workspace, msg):
try:
vec = msg.vector
if not vec:
return []
# Handle zero limit case
if msg.limit <= 0:
return []
resp = self.vecstore.search(
vec,
workspace,
msg.collection,
limit=msg.limit * 2
)
entity_set = set()
entities = []
for r in resp:
ent = r["entity"]["entity"]
# Milvus returns distance, convert to similarity score
distance = r.get("distance", 0.0)
score = 1.0 - distance if distance else 0.0
# De-dupe entities, keep highest score
if ent not in entity_set:
entity_set.add(ent)
entities.append(EntityMatch(
entity=self.create_value(ent),
score=score,
))
# Keep adding entities until limit
if len(entities) >= msg.limit:
break
logger.debug("Send response...")
return entities
except Exception as e:
logger.error(f"Exception querying graph embeddings: {e}", exc_info=True)
raise e
@staticmethod
def add_args(parser):
GraphEmbeddingsQueryService.add_args(parser)
parser.add_argument(
'-t', '--store-uri',
default=default_store_uri,
help=f'Milvus store URI (default: {default_store_uri})'
)
def run():
Processor.launch(default_ident, __doc__)