mirror of
https://github.com/trustgraph-ai/trustgraph.git
synced 2026-04-28 18:06:21 +02:00
70 lines
1.7 KiB
Python
70 lines
1.7 KiB
Python
|
|
import asyncio
|
|
import queue
|
|
from pulsar.schema import JsonSchema
|
|
import uuid
|
|
|
|
from .. schema import GraphEmbeddings
|
|
from .. schema import graph_embeddings_store_queue
|
|
from .. base import Subscriber
|
|
|
|
from . socket import SocketEndpoint
|
|
from . serialize import serialize_graph_embeddings
|
|
|
|
class GraphEmbeddingsStreamEndpoint(SocketEndpoint):
|
|
|
|
def __init__(
|
|
self, pulsar_client, auth, path="/api/v1/stream/graph-embeddings"
|
|
):
|
|
|
|
super(GraphEmbeddingsStreamEndpoint, self).__init__(
|
|
endpoint_path=path, auth=auth,
|
|
)
|
|
|
|
self.pulsar_client=pulsar_client
|
|
|
|
self.subscriber = Subscriber(
|
|
self.pulsar_client, graph_embeddings_store_queue,
|
|
"api-gateway", "api-gateway",
|
|
schema=JsonSchema(GraphEmbeddings)
|
|
)
|
|
|
|
async def listener(self, ws, running):
|
|
|
|
worker = asyncio.create_task(
|
|
self.async_thread(ws, running)
|
|
)
|
|
|
|
await super(GraphEmbeddingsStreamEndpoint, self).listener(ws, running)
|
|
|
|
await worker
|
|
|
|
async def start(self):
|
|
|
|
self.subscriber.start()
|
|
|
|
async def async_thread(self, ws, running):
|
|
|
|
id = str(uuid.uuid4())
|
|
|
|
q = self.subscriber.subscribe_all(id)
|
|
|
|
while running.get():
|
|
try:
|
|
resp = await asyncio.to_thread(q.get, timeout=0.5)
|
|
await ws.send_json(serialize_graph_embeddings(resp))
|
|
|
|
except TimeoutError:
|
|
continue
|
|
|
|
except queue.Empty:
|
|
continue
|
|
|
|
except Exception as e:
|
|
print(f"Exception: {str(e)}", flush=True)
|
|
break
|
|
|
|
self.subscriber.unsubscribe_all(id)
|
|
|
|
running.stop()
|
|
|