Begin to add binary support for swisscom receiver

python/notify.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+
+# Send lora packet to node-red when being triggered by postgresql
+# Nico Schottelius <nico.schottelius -at- ungleich.ch>
+# 2016-11-02
+# GPLv3+
+
+import select
+import psycopg2
+import psycopg2.extensions
+import websocket
+
+import adeunisrf
+
+channels = [ "loriot", "swisscom", "ttn" ]
+
+
+def to_nodered(provider, data):
+    ws = websocket.create_connection("ws://localhost:1880/{}".format(provider))
+    ws.send("%s" % data)
+    ws.close()
+
+def wait_for_pkg(conns):
+
+    readable, writable, exceptional = select.select(conns,[],[])
+
+    for conn in readable:
+        conn.poll()
+        while conn.notifies:
+            notify = conn.notifies.pop(0)
+            print("Got NOTIFY: {} {} {}".format(notify.pid, notify.channel, notify.payload))
+            to_nodered(notify.channel, notify.payload)
+
+if __name__ == '__main__':
+    conns = []
+    for channel in channels:
+
+        conn = psycopg2.connect("dbname=lorawan")
+        conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
+
+        curs = conn.cursor()
+        curs.execute("LISTEN {};".format(channel))
+
+        conns.append(conn)
+        print("Waiting for notifications on channel {}".format(channel))
+
+    while True:
+        wait_for_pkg(conns)