Fixed a problem with the packages, api/__init__.py appeared in both (#196)

trustgraph-flow and trustgraph-base, moved the gateway stuff into a
different directory.

trustgraph-flow/trustgraph/gateway/triples_load.py

@@ -0,0 +1,57 @@
+
+import asyncio
+from pulsar.schema import JsonSchema
+import uuid
+from aiohttp import WSMsgType
+
+from ... schema import Metadata
+from ... schema import Triples
+from ... schema import triples_store_queue
+
+from . publisher import Publisher
+from . socket import SocketEndpoint
+from . serialize import to_subgraph
+
+class TriplesLoadEndpoint(SocketEndpoint):
+
+    def __init__(self, pulsar_host, auth, path="/api/v1/load/triples"):
+
+        super(TriplesLoadEndpoint, self).__init__(
+            endpoint_path=path, auth=auth,
+        )
+
+        self.pulsar_host=pulsar_host
+
+        self.publisher = Publisher(
+            self.pulsar_host, triples_store_queue,
+            schema=JsonSchema(Triples)
+        )
+
+    async def start(self):
+
+        self.publisher.start()
+
+    async def listener(self, ws, running):
+        
+        async for msg in ws:
+            # On error, finish
+            if msg.type == WSMsgType.ERROR:
+                break
+            else:
+
+                data = msg.json()
+
+                elt = Triples(
+                    metadata=Metadata(
+                        id=data["metadata"]["id"],
+                        metadata=to_subgraph(data["metadata"]["metadata"]),
+                        user=data["metadata"]["user"],
+                        collection=data["metadata"]["collection"],
+                    ),
+                    triples=to_subgraph(data["triples"]),
+                )
+
+                self.publisher.send(None, elt)
+
+
+        running.stop()