From 419ec2ae02f6426bcce7822607827c2a44722fa3 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 22 Oct 2014 23:27:20 +0200
Subject: daq: flumotion-rrd now uses stateless protocol

---
 src/daq/flumotion-rrd/s5-flumotion-rrd | 38 ++++++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 9 deletions(-)

(limited to 'src/daq')

diff --git a/src/daq/flumotion-rrd/s5-flumotion-rrd b/src/daq/flumotion-rrd/s5-flumotion-rrd
index bef9488..c2e82eb 100755
--- a/src/daq/flumotion-rrd/s5-flumotion-rrd
+++ b/src/daq/flumotion-rrd/s5-flumotion-rrd
@@ -156,18 +156,13 @@ class FlumotionRRD():
 
     def _socketReady(self):
         print 'SFive: connection to sfive hub established'
-        self._sendInit()
+# we are using datagram sockets for now -> must use stateless protocol
+#        self._sendInit()
         cnt = self._sendRRDData()
         print 'SFive: sent %d datasets' % (cnt)
 
         reactor.stop()
 
-    def _sendInit(self):
-        initdata = { "version": 1, "hostname": self._hostname,
-                     "streamer-id": { "content-id": self._content_id, "format": self._format, "quality": self._quality },
-                     "tags": self._tags }
-        self._proto.sendDatagram('%s\n' % (json.dumps(initdata)));
-
     def _sendRRDData(self):
         try:
             data_bytes = rrdtool.fetch(self._bytes_rrdfile, 'AVERAGE', '-s', 'end-7d', '-e', '%d' % self._end)
@@ -184,8 +179,8 @@ class FlumotionRRD():
         cnt = 0
         for idx in range(0, max - 1):
             try:
-                self._sendDataset(datetime.datetime.utcfromtimestamp(ts), self._duration,
-                                  data_clients[2][idx][0], data_bytes[2][idx][0])
+                self._sendDatasetFull(datetime.datetime.utcfromtimestamp(ts), self._duration,
+                                      data_clients[2][idx][0], data_bytes[2][idx][0])
                 ts += self._duration
                 cnt += 1
             except ValueError as err:
@@ -193,6 +188,31 @@ class FlumotionRRD():
 
         return cnt
 
+    def _sendDatasetFull(self, timestamp, duration, client_count, bytes_sent):
+        client_count = int(round(client_count)) if client_count else 0
+        bytes_sent = int(round(bytes_sent)) if bytes_sent else 0
+        data = { "version": 1, "hostname": self._hostname,
+                 "streamer-id": {
+                     "content-id": self._content_id,
+                     "format": self._format,
+                     "quality": self._quality
+                 },
+                 "tags": self._tags,
+                 "start-time": timestamp.isoformat('T') + 'Z',
+                 "duration-ms": duration * 1000,
+                 "data": {
+                   "client-count": client_count,
+                   "bytes-sent": bytes_sent
+                 }
+               }
+        self._proto.sendDatagram('%s\n' % (json.dumps(data)));
+
+    def _sendInit(self):
+        initdata = { "version": 1, "hostname": self._hostname,
+                     "streamer-id": { "content-id": self._content_id, "format": self._format, "quality": self._quality },
+                     "tags": self._tags }
+        self._proto.sendDatagram('%s\n' % (json.dumps(initdata)));
+
     def _sendDataset(self, timestamp, duration, client_count, bytes_sent):
         client_count = int(round(client_count)) if client_count else 0
         bytes_sent = int(round(bytes_sent)) if bytes_sent else 0
-- 
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