Add HTTP request/reply samples

This relies on the notifications sent by the new
openstack.common.middleware.notifier middleware.

Change-Id: Ic5bb416417e9c99fdd9028ce75f2387732308ad7
Implements: blueprint count-api-requests

1 files changed, 74 insertions, 0 deletions

diff --git a/ceilometer/middleware.py b/ceilometer/middleware.py
new file mode 100644
index 00000000..a13e2d16
--- /dev/null
+++ b/ceilometer/middleware.py
@@ -0,0 +1,74 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright © 2013 eNovance
+#
+# Author: Julien Danjou <julien@danjou.info>
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+from oslo.config import cfg
+
+from ceilometer import plugin
+from ceilometer import sample
+
+cfg.CONF.import_opt('nova_control_exchange',
+                    'ceilometer.compute.notifications')
+cfg.CONF.import_opt('glance_control_exchange',
+                    'ceilometer.image.notifications')
+cfg.CONF.import_opt('neutron_control_exchange',
+                    'ceilometer.network.notifications')
+cfg.CONF.import_opt('cinder_control_exchange',
+                    'ceilometer.volume.notifications')
+
+OPTS = [
+    cfg.MultiStrOpt('http_control_exchanges',
+                    default=[cfg.CONF.nova_control_exchange,
+                             cfg.CONF.glance_control_exchange,
+                             cfg.CONF.neutron_control_exchange,
+                             cfg.CONF.cinder_control_exchange],
+                    help="Exchanges name to listen for notifications"),
+]
+
+cfg.CONF.register_opts(OPTS)
+
+
+class HTTPRequest(plugin.NotificationBase):
+    event_types = ['http.request']
+
+    @staticmethod
+    def get_exchange_topics(conf):
+        """Return a sequence of ExchangeTopics defining the exchange and
+        topics to be connected for this plugin.
+        """
+        return [
+            plugin.ExchangeTopics(
+                exchange=exchange,
+                topics=set(topic + ".info"
+                           for topic in conf.notification_topics))
+            for exchange in conf.http_control_exchanges
+        ]
+
+    def process_notification(self, message):
+        yield sample.Sample.from_notification(
+            name=message['event_type'],
+            type=sample.TYPE_DELTA,
+            volume=1,
+            unit=message['event_type'].split('.')[1],
+            user_id=message['payload']['request'].get('HTTP_X_USER_ID'),
+            project_id=message['payload']['request'].get('HTTP_X_PROJECT_ID'),
+            resource_id=None,
+            message=message)
+
+
+class HTTPResponse(HTTPRequest):
+    event_types = ['http.response']