Providing transformer support for sflow feature

azure-pipelines.yml

@@ -92,7 +92,6 @@ stages:
 
         [[ -f tools/test/database_config.json ]] && \
             export DB_CONFIG_PATH=${PWD}/tools/test/database_config.json
-
         # Run CVL tests
 
         pushd build/tests/cvl
@@ -115,6 +114,8 @@ stages:
 
         ./transformer.test -test.v -logtostderr || STATUS=1
 
+        ./testapp.test -test.v -logtostderr || STATUS=1
+
         popd
 
         exit ${STATUS}

config/transformer/models_list

@@ -1,3 +1,5 @@
 #List yang models transformer need to load
 openconfig-acl.yang
 openconfig-acl-annot.yang
+openconfig-sampling-sflow.yang
+openconfig-sampling-sflow-annot.yang

debian/sonic-mgmt-common.install

@@ -1,7 +1,7 @@
 # Yang models
 build/yang/*.yang                   usr/models/yang
 build/yang/common/*.yang            usr/models/yang
-#build/yang/extensions/*.yang       usr/models/yang
+build/yang/extensions/*.yang       usr/models/yang
 build/yang/sonic/*.yang             usr/models/yang
 build/yang/sonic/common/*.yang      usr/models/yang
 build/yang/annotations/*.yang       usr/models/yang

models/yang/annotations/openconfig-sampling-sflow-annot.yang

@@ -0,0 +1,34 @@
+module openconfig-sampling-sflow-annot {
+
+    yang-version "1";
+
+    namespace "http://openconfig.net/yang/annotation/oc-sampling-sflow-annot";
+    prefix "oc-sampling-annot";
+
+    import openconfig-extensions { prefix oc-ext; }
+    import openconfig-sampling-sflow { prefix oc-sampling; }
+    import sonic-extensions { prefix sonic-ext; }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow {
+      deviate add {
+        sonic-ext:subtree-transformer "sflow_xfmr";
+      }
+    }
+
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:collectors {
+      deviate add {
+        sonic-ext:subtree-transformer "sflow_collector_xfmr";
+        sonic-ext:path-transformer "sflow_collector_path_xfmr";
+      }
+    }
+
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:interfaces {
+      deviate add {
+        sonic-ext:subtree-transformer "sflow_interface_xfmr";
+        sonic-ext:path-transformer "sflow_interface_path_xfmr";
+      }
+    }
+}
+

models/yang/extensions/openconfig-sampling-sflow-deviation.yang

@@ -0,0 +1,54 @@
+module openconfig-sampling-sflow-deviation {
+
+    yang-version "1.1";
+
+    // namespace
+    namespace "http://openconfig.net/yang/sampling/sflow/deviation/extension";
+
+    prefix "oc-sampling-sflow-dev";
+
+    import openconfig-extensions { prefix "oc-ext"; }
+    import openconfig-sampling-sflow { prefix oc-sampling; }
+
+    organization "SONiC";
+    contact
+        "SONiC";
+    description
+        "This is a deviation yang for openconfig sampling model.";
+
+    oc-ext:openconfig-version "0.1.0";
+
+    revision 2020-06-23 {
+        description
+         "Initial version.";
+        reference "0.1.0";
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:config/oc-sampling:source-address {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:config/oc-sampling:sample-size {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:config/oc-sampling:sampling-rate {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:interfaces/oc-sampling:interface/oc-sampling:state/oc-sampling:packets-sampled {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:state/oc-sampling:source-address {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:state/oc-sampling:sample-size {
+         deviate not-supported;
+    }
+
+    deviation /oc-sampling:sampling/oc-sampling:sflow/oc-sampling:collectors/oc-sampling:collector/oc-sampling:state/oc-sampling:packets-sent {
+	 deviate not-supported;
+    }    
+}