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diff --git a/compass-tasks/hdsdiscovery/vendors/ovswitch/ovswitch.py b/compass-tasks/hdsdiscovery/vendors/ovswitch/ovswitch.py
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+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# 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.
+
+"""Open Vswitch module."""
+import logging
+import re
+
+from compass.hdsdiscovery import base
+from compass.hdsdiscovery import utils
+
+
+# Vendor_loader will load vendor instance by CLASS_NAME
+CLASS_NAME = "OVSwitch"
+
+
+class OVSwitch(base.BaseVendor):
+ """Open Vswitch."""
+ def __init__(self):
+ self.__name = "Open vSwitch"
+
+ def is_this_vendor(self, sys_info, host=None, credential=None, **kwargs):
+ """Determine if the hostname is accociated witH this vendor.
+
+ :param host: swtich's IP address
+ :param credential: credential to access switch
+ """
+ result = sys_info
+ if host and credential:
+ if utils.is_valid_ssh_credential(credential):
+ user = credential['username']
+ pwd = credential['password']
+
+ else:
+ msg = ("[OVSwitch]The format of credential %r is not for SSH "
+ "or incorrect Keywords! " % credential)
+ logging.info(msg)
+ return False
+
+ cmd = "ovs-vsctl -V"
+ result = None
+ try:
+ result = utils.ssh_remote_execute(host, user, pwd, cmd)
+ logging.debug('%s result for %s is %s', cmd, host, result)
+ if not result:
+ return False
+ except Exception as exc:
+ logging.error("No vendor or connection failed to run %s", cmd)
+ logging.exception(exc)
+ return False
+
+ if isinstance(result, str):
+ result = [result]
+
+ for line in result:
+ if not line:
+ continue
+ if re.search(r"\b" + re.escape(self.__name) + r"\b", line):
+ return True
+
+ return False
+
+ @property
+ def name(self):
+ """Open Vswitch name."""
+ return self.__name