move ceilometer service over from xos repo

Change-Id: I9402876545cf552675cd0a836e02e2c72fea5f6b
diff --git a/xos/tosca/resources/sflowservice.py b/xos/tosca/resources/sflowservice.py
new file mode 100644
index 0000000..272518e
--- /dev/null
+++ b/xos/tosca/resources/sflowservice.py
@@ -0,0 +1,41 @@
+import os
+import pdb
+import sys
+import tempfile
+sys.path.append("/opt/tosca")
+from translator.toscalib.tosca_template import ToscaTemplate
+
+from core.models import ServiceAttribute
+from services.ceilometer.models import SFlowService
+
+from service import XOSService
+
+class XOSSFlowService(XOSService):
+    provides = "tosca.nodes.SFlowService"
+    xos_model = SFlowService
+    copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key", "versionNumber", "sflow_port", "sflow_api_port"]
+
+    def set_service_attr(self, obj, prop_name, value):
+        value = self.try_intrinsic_function(value)
+        if value:
+            attrs = ServiceAttribute.objects.filter(service=obj, name=prop_name)
+            if attrs:
+                attr = attrs[0]
+                if attr.value != value:
+                    self.info("updating attribute %s" % prop_name)
+                    attr.value = value
+                    attr.save()
+            else:
+                self.info("adding attribute %s" % prop_name)
+                ta = ServiceAttribute(service=obj, name=prop_name, value=value)
+                ta.save()
+
+    def postprocess(self, obj):
+        props = self.nodetemplate.get_properties()
+        for (k,d) in props.items():
+            v = d.value
+            if k.startswith("config_"):
+                self.set_service_attr(obj, k, v)
+            elif k.startswith("rest_"):
+                self.set_service_attr(obj, k, v)
+