Add IxNextgen API for setting tracking options

Added IxNextgen API for setting:
- ingress flows tracking options
- egress flows tracking options

JIRA: YARDSTICK-1472

Change-Id: Ia604025a7d181213200c6562260b25cf11d4d73e
Signed-off-by: Oleksandr Naumets <oleksandrx.naumets@intel.com>

2 files changed, 53 insertions, 0 deletions

diff --git a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
index d4f75babb..8b69a8848 100644
--- a/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
+++ b/yardstick/network_services/libs/ixia_libs/ixnet/ixnet_api.py
@@ -608,6 +608,39 @@ class IxNextgen(object):  # pragma: no cover
             'getColumnValues', view_obj, data_ixia)
             for data_yardstick, data_ixia in name_map.items()}
 
+    def _set_egress_flow_tracking(self, encapsulation, offset):
+        """Set egress flow tracking options
+
+        :param encapsulation: encapsulation type
+        :type encapsulation: str, e.g. 'Ethernet'
+        :param offset: offset type
+        :type offset: str, e.g. 'IPv4 TOS Precedence (3 bits)'
+        """
+        traffic_item = self.ixnet.getList(self.ixnet.getRoot() + '/traffic',
+                                          'trafficItem')[0]
+        # Enable Egress Tracking
+        self.ixnet.setAttribute(traffic_item, '-egressEnabled', True)
+        self.ixnet.commit()
+
+        # Set encapsulation type
+        enc_obj = self.ixnet.getList(traffic_item, 'egressTracking')[0]
+        self.ixnet.setAttribute(enc_obj, '-encapsulation', encapsulation)
+
+        # Set offset
+        self.ixnet.setAttribute(enc_obj, '-offset', offset)
+        self.ixnet.commit()
+
+    def _set_flow_tracking(self, track_by):
+        """Set flow tracking options
+
+        :param track_by: list of tracking fields
+        :type track_by: list, e.g. ['vlanVlanId0','ipv4Precedence0']
+        """
+        traffic_item = self.ixnet.getList(self.ixnet.getRoot() + '/traffic',
+                                          'trafficItem')[0]
+        self.ixnet.setAttribute(traffic_item + '/tracking', '-trackBy', track_by)
+        self.ixnet.commit()
+
     def get_statistics(self):
         """Retrieve port and flow statistics
 
diff --git a/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py b/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
index 66fed81f1..2179a7d46 100644
--- a/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
+++ b/yardstick/tests/unit/network_services/libs/ixia_libs/test_ixnet_api.py
@@ -592,6 +592,26 @@ class TestIxNextgen(unittest.TestCase):
             mock.call(port_statistics, self.ixnet_gen.PORT_STATS_NAME_MAP),
             mock.call(flow_statistics, self.ixnet_gen.LATENCY_NAME_MAP)])
 
+    def test__set_flow_tracking(self):
+        self.ixnet_gen._ixnet.getList.return_value = ['traffic_item']
+        self.ixnet_gen._set_flow_tracking(track_by=['vlanVlanId0'])
+        self.ixnet_gen.ixnet.setAttribute.assert_called_once_with(
+            'traffic_item/tracking', '-trackBy', ['vlanVlanId0'])
+        self.assertEqual(self.ixnet.commit.call_count, 1)
+
+    def test__set_egress_flow_tracking(self):
+        self.ixnet_gen._ixnet.getList.side_effect = [['traffic_item'],
+                                                     ['encapsulation']]
+        self.ixnet_gen._set_egress_flow_tracking(encapsulation='Ethernet',
+                                                 offset='IPv4 TOS Precedence')
+        self.ixnet_gen.ixnet.setAttribute.assert_any_call(
+            'traffic_item', '-egressEnabled', True)
+        self.ixnet_gen.ixnet.setAttribute.assert_any_call(
+            'encapsulation', '-encapsulation', 'Ethernet')
+        self.ixnet_gen.ixnet.setAttribute.assert_any_call(
+            'encapsulation', '-offset', 'IPv4 TOS Precedence')
+        self.assertEqual(self.ixnet.commit.call_count, 2)
+
     def test__update_ipv4_address(self):
         with mock.patch.object(self.ixnet_gen, '_get_field_in_stack_item',
                                return_value='field_desc'):