Added osprofiler notifications plugin

As a default osprofiler notification driver in OpenStack
we are going to use notifier based on oslo.messaging.

These messages will send notification with event_type
"profiler.*" so we will be able to manage them separately
from other messages in "notifications.*"

Actually 1 osprofiler trace has a lot of notifications, so to be able
to retrieve them via ceilometer API in one request, we are using specific
specific resource_id, "profiler-<base_id>". We are using base_id in resource_id
case base_id is common id for all notifications related to one trace.

Implements bp osprofiler-plugin

Change-Id: Iefa98d479fc355343c96cdfa09f713a3ec0f47dd

2 files changed, 56 insertions, 0 deletions

diff --git a/ceilometer/profiler/__init__.py b/ceilometer/profiler/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/ceilometer/profiler/__init__.py
diff --git a/ceilometer/profiler/notifications.py b/ceilometer/profiler/notifications.py
new file mode 100644
index 00000000..f1735b72
--- /dev/null
+++ b/ceilometer/profiler/notifications.py
@@ -0,0 +1,56 @@
+# Copyright 2014: Mirantis Inc.
+# All Rights Reserved.
+#
+# 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.
+
+import oslo.messaging
+
+from ceilometer import plugin
+from ceilometer import sample
+
+
+class ProfilerNotifications(plugin.NotificationBase):
+
+    event_types = ["profiler.*"]
+
+    def get_targets(self, conf):
+        """Return a sequence of oslo.messaging.Target defining the exchange and
+        topics to be connected for this plugin.
+
+        :param conf: Configuration.
+        """
+        targets = []
+        exchanges = [
+            conf.nova_control_exchange,
+            conf.cinder_control_exchange,
+            conf.glance_control_exchange,
+            conf.neutron_control_exchange,
+            conf.heat_control_exchange
+        ]
+
+        for exchange in exchanges:
+            targets.extend(oslo.messaging.Target(topic=topic,
+                                                 exchange=exchange)
+                           for topic in conf.notification_topics)
+        return targets
+
+    def process_notification(self, message):
+        yield sample.Sample.from_notification(
+            name=message["payload"]["name"],
+            type=sample.TYPE_GAUGE,
+            volume=1,
+            unit="trace",
+            user_id=message["payload"].get("user_id"),
+            project_id=message["payload"].get("project_id"),
+            resource_id="profiler-%s" % message["payload"]["base_id"],
+            message=message)