Preliminary capability, knowledge cores with msgpack

test-api/test-embeddings-api

@@ -23,3 +23,6 @@ if "error" in resp:
     print(f"Error: {resp['error']}")
     sys.exit(1)
 
+print(resp["vectors"])
+
+

trustgraph-cli/scripts/dump-msgpack

@@ -0,0 +1,9 @@
+#!/usr/bin/env python3
+
+import msgpack
+import sys
+
+unpacker = msgpack.Unpacker(sys.stdin.buffer, raw=False)
+for unpacked in unpacker:
+    print(unpacked)
+

trustgraph-flow/scripts/tg-save-kg-core

@@ -0,0 +1,190 @@
+#!/usr/bin/env python3
+
+import aiohttp
+import asyncio
+import msgpack
+import json
+import sys
+import argparse
+import os
+
+async def fetch_ge(queue, user, collection, url):
+    async with aiohttp.ClientSession() as session:
+        async with session.ws_connect(f"{url}stream/graph-embeddings") as ws:
+            async for msg in ws:
+                if msg.type == aiohttp.WSMsgType.TEXT:
+
+                    data = msg.json()
+
+                    if user:
+                        if data["metadata"]["user"] != user:
+                            continue
+
+                    if collection:
+                        if data["metadata"]["collection"] != collection:
+                            continue
+
+                    await queue.put([
+                        "ge",
+                        {
+                            "m": {
+                                "i": data["metadata"]["id"], 
+                                "m": data["metadata"]["metadata"],
+                                "u": data["metadata"]["user"],
+                                "c": data["metadata"]["collection"],
+                            },
+                            "v": data["vectors"],
+                            "e": data["entity"],
+                        }
+                    ])
+                if msg.type == aiohttp.WSMsgType.ERROR:
+                    print("Error")
+                    break
+
+async def fetch_triples(queue, user, collection, url):
+    async with aiohttp.ClientSession() as session:
+        async with session.ws_connect(f"{url}stream/triples") as ws:
+            async for msg in ws:
+                if msg.type == aiohttp.WSMsgType.TEXT:
+
+                    data = msg.json()
+
+                    if user:
+                        if data["metadata"]["user"] != user:
+                            continue
+
+                    if collection:
+                        if data["metadata"]["collection"] != collection:
+                            continue
+
+                    await queue.put((
+                        "t",
+                        {
+                            "m": {
+                                "i": data["metadata"]["id"], 
+                                "m": data["metadata"]["metadata"],
+                                "u": data["metadata"]["user"],
+                                "c": data["metadata"]["collection"],
+                            },
+                            "t": data["triples"],
+                        }
+                    ))
+                if msg.type == aiohttp.WSMsgType.ERROR:
+                    print("Error")
+                    break
+
+ge_counts = 0
+t_counts = 0
+
+async def stats():
+
+    global t_counts
+    global ge_counts
+
+    while True:
+        await asyncio.sleep(5)
+        print(
+            f"Graph embeddings: {ge_counts:10d}  Triples: {t_counts:10d}"
+        )
+
+async def output(queue, path, format):
+
+    global t_counts
+    global ge_counts
+    
+    with open(path, "wb") as f:
+
+        while True:
+
+            msg = await queue.get()
+
+            if format == "msgpack":
+                f.write(msgpack.packb(msg, use_bin_type=True))
+            else:
+                f.write(json.dumps(msg).encode("utf-8"))
+
+            if msg[0] == "t":
+                t_counts += 1
+            else:
+                if msg[0] == "ge":
+                    ge_counts += 1
+
+async def run(**args):
+
+    q = asyncio.Queue()
+
+    ge_task = asyncio.create_task(
+        fetch_ge(
+            queue=q, user=args["user"], collection=args["collection"],
+            url=args["url"] + "api/v1/"
+        )
+    )
+
+    triples_task = asyncio.create_task(
+        fetch_triples(
+            queue=q, user=args["user"], collection=args["collection"],
+            url=args["url"] + "api/v1/"
+        )
+    )
+
+    output_task = asyncio.create_task(
+        output(
+            queue=q, path=args["output_file"], format=args["format"],
+        )
+        
+    )
+
+    stats_task = asyncio.create_task(stats())
+
+    await output_task
+    await triples_task
+    await ge_task
+    await stats_task
+
+async def main():
+    
+    parser = argparse.ArgumentParser(
+        prog='tg-load-pdf',
+        description=__doc__,
+    )
+
+    default_url = os.getenv("TRUSTGRAPH_API", "http://localhost:8088/")
+    default_user = "trustgraph"
+    collection = "default"
+
+    parser.add_argument(
+        '-u', '--url',
+        default=default_url,
+        help=f'TrustGraph API URL (default: {default_url})',
+    )
+
+    parser.add_argument(
+        '-o', '--output-file',
+        # Make it mandatory, difficult to over-write an existing file
+        required=True,
+        help=f'Output file'
+    )
+
+    parser.add_argument(
+        '--format',
+        default="msgpack",
+        choices=["msgpack", "json"],
+        help=f'Output format (default: msgpack)',
+    )
+
+    parser.add_argument(
+        '--user',
+        help=f'User ID to filter on (default: no filter)'
+    )
+
+    parser.add_argument(
+        '--collection',
+        help=f'Collection ID to filter on (default: no filter)'
+    )
+
+    args = parser.parse_args()
+
+    await run(**vars(args))
+
+asyncio.run(main())
+

trustgraph-flow/setup.py

@@ -104,5 +104,6 @@ setuptools.setup(
         "scripts/triples-query-neo4j",
         "scripts/triples-write-cassandra",
         "scripts/triples-write-neo4j",
+        "scripts/tg-save-kg-core",
     ]
 )

trustgraph-flow/trustgraph/api/gateway/service.py

@@ -14,7 +14,7 @@ module = ".".join(__name__.split(".")[1:-1])
 
 import asyncio
 import argparse
-from aiohttp import web
+from aiohttp import web, WSMsgType
 import json
 import logging
 import uuid
@@ -47,9 +47,13 @@ from ... schema import GraphRagQuery, GraphRagResponse
 from ... schema import graph_rag_request_queue
 from ... schema import graph_rag_response_queue
 
-from ... schema import TriplesQueryRequest, TriplesQueryResponse
+from ... schema import TriplesQueryRequest, TriplesQueryResponse, Triples
 from ... schema import triples_request_queue
 from ... schema import triples_response_queue
+from ... schema import triples_store_queue
+
+from ... schema import GraphEmbeddings
+from ... schema import graph_embeddings_store_queue
 
 from ... schema import AgentRequest, AgentResponse
 from ... schema import agent_request_queue
@@ -84,6 +88,11 @@ def to_subgraph(x):
         for t in x
     ]
 
+class Running:
+    def __init__(self): self.running = True
+    def get(self): return self.running
+    def stop(self): self.running = False
+
 class Publisher:
 
     def __init__(self, pulsar_host, topic, schema=None, max_size=10,
@@ -132,6 +141,7 @@ class Subscriber:
         self.consumer_name = consumer_name
         self.schema = schema
         self.q = {}
+        self.full = {}
 
     async def run(self):
         while True:
@@ -145,10 +155,19 @@ class Subscriber:
                     ) as consumer:
                         while True:
                             msg = await consumer.receive()
-                            id = msg.properties()["id"]
+
+                            try:
+                                id = msg.properties()["id"]
+                            except:
+                                id = None
+
                             value = msg.value()
                             if id in self.q:
                                 await self.q[id].put(value)
+
+                            for q in self.full.values():
+                                await q.put(value)
+
             except Exception as e:
                 print("Exception:", e, flush=True)
          
@@ -164,6 +183,59 @@ class Subscriber:
         if id in self.q:
             del self.q[id]
     
+    async def subscribe_all(self, id):
+        q = asyncio.Queue()
+        self.full[id] = q
+        return q
+
+    async def unsubscribe_all(self, id):
+        if id in self.full:
+            del self.full[id]
+
+def serialize_triples(message):
+    return {
+        "metadata": {
+            "id": message.metadata.id,
+            "metadata": [
+                {
+                    "s": t.s.value,
+                    "p": t.p.value,
+                    "o": t.o.value,
+                }
+                for t in message.metadata.metadata
+            ],
+            "user": message.metadata.user,
+            "collection": message.metadata.collection,
+        },
+        "triples": [        
+            {
+                "s": t.s.value,
+                "p": t.p.value,
+                "o": t.o.value,
+            }
+            for t in message.triples
+        ]
+    }
+    
+def serialize_graph_embeddings(message):
+    return {
+        "metadata": {
+            "id": message.metadata.id,
+            "metadata": [
+                {
+                    "s": t.s.value,
+                    "p": t.p.value,
+                    "o": t.o.value,
+                }
+                for t in message.metadata.metadata
+            ],
+            "user": message.metadata.user,
+            "collection": message.metadata.collection,
+        },
+        "vectors": message.vectors,
+        "entity": message.entity.value,
+    }
+    
 class Api:
 
     def __init__(self, **config):
@@ -243,6 +315,18 @@ class Api:
             JsonSchema(EmbeddingsResponse)
         )
 
+        self.triples_tap = Subscriber(
+            self.pulsar_host, triples_store_queue,
+            "api-gateway", "api-gateway",
+            schema=JsonSchema(Triples)
+        )
+
+        self.graph_embeddings_tap = Subscriber(
+            self.pulsar_host, graph_embeddings_store_queue,
+            "api-gateway", "api-gateway",
+            schema=JsonSchema(GraphEmbeddings)
+        )
+
         self.document_out = Publisher(
             self.pulsar_host, document_ingest_queue,
             schema=JsonSchema(Document),
@@ -264,6 +348,12 @@ class Api:
             web.post("/api/v1/embeddings", self.embeddings),
             web.post("/api/v1/load/document", self.load_document),
             web.post("/api/v1/load/text", self.load_text),
+            web.get("/api/v1/ws", self.socket),
+            web.get("/api/v1/stream/triples", self.stream_triples),
+            web.get(
+                "/api/v1/stream/graph-embeddings",
+                self.stream_graph_embeddings
+            ),
         ])
 
     async def llm(self, request):
@@ -660,6 +750,100 @@ class Api:
                 { "error": str(e) }
             )
 
+    async def socket(self, request):
+
+        ws = web.WebSocketResponse()
+        await ws.prepare(request)
+
+        async for msg in ws:
+            if msg.type == WSMsgType.TEXT:
+                if msg.data == 'close':
+                    await ws.close()
+                else:
+                    await ws.send_str(msg.data + '/answer')
+            elif msg.type == WSMsgType.ERROR:
+                print('ws connection closed with exception %s' %
+                      ws.exception())
+
+        print('websocket connection closed')
+
+        return ws
+
+    async def stream(self, q, ws, running, fn):
+
+        while running.get():
+            try:
+                resp = await asyncio.wait_for(q.get(), 0.5)
+                await ws.send_json(fn(resp))
+
+            except TimeoutError:
+                continue
+
+            except Exception as e:
+                print(f"Exception: {str(e)}", flush=True)
+
+    async def stream_triples(self, request):
+
+        id = str(uuid.uuid4())
+
+        q = await self.triples_tap.subscribe_all(id)
+        running = Running()
+
+        ws = web.WebSocketResponse()
+        await ws.prepare(request)
+
+        tsk = asyncio.create_task(self.stream(
+            q,
+            ws,
+            running,
+            serialize_triples,
+        ))
+
+        async for msg in ws:
+            if msg.type == WSMsgType.ERROR:
+                break
+            else:
+                # Ignore incoming messages
+                pass
+
+        running.stop()
+
+        await self.triples_tap.unsubscribe_all(id)
+        await tsk
+
+        return ws
+
+    async def stream_graph_embeddings(self, request):
+
+        id = str(uuid.uuid4())
+
+        q = await self.graph_embeddings_tap.subscribe_all(id)
+        running = Running()
+
+        ws = web.WebSocketResponse()
+        await ws.prepare(request)
+
+        tsk = asyncio.create_task(self.stream(
+            q,
+            ws,
+            running,
+            serialize_graph_embeddings,
+        ))
+
+        async for msg in ws:
+            if msg.type == WSMsgType.ERROR:
+                break
+            else:
+                # Ignore incoming messages
+                pass
+
+        running.stop()
+
+        await self.graph_embeddings_tap.unsubscribe_all(id)
+        await tsk
+
+        return ws
+
     async def app_factory(self):
 
         self.llm_pub_task = asyncio.create_task(self.llm_in.run())
@@ -688,6 +872,14 @@ class Api:
             self.embeddings_out.run()
         )
 
+        self.triples_tap_task = asyncio.create_task(
+            self.triples_tap.run()
+        )
+
+        self.graph_embeddings_tap_task = asyncio.create_task(
+            self.graph_embeddings_tap.run()
+        )
+
         self.doc_ingest_pub_task = asyncio.create_task(self.document_out.run())
 
         self.text_ingest_pub_task = asyncio.create_task(self.text_out.run())