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+# Copyright (c) 2017 Cisco and/or its affiliates.
+# 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.
+
+"""Keywords to manipulate NAT configuration using Honeycomb REST API."""
+
+from resources.libraries.python.HTTPRequest import HTTPCodes
+from resources.libraries.python.honeycomb.HoneycombSetup import HoneycombError
+from resources.libraries.python.honeycomb.HoneycombUtil \
+ import DataRepresentation
+from resources.libraries.python.honeycomb.HoneycombUtil \
+ import HoneycombUtil as HcUtil
+
+
+class DHCPRelayKeywords(object):
+ """Keywords for NAT configuration."""
+
+ def __init__(self):
+ pass
+
+ @staticmethod
+ def _set_dhcp_relay_properties(node, path, data=None):
+ """Set DHCP relay properties and check the return code.
+
+ :param node: Honeycomb node.
+ :param path: Path which is added to the base path to identify the data.
+ :param data: The new data to be set. If None, the item will be removed.
+ :type node: dict
+ :type path: str
+ :type data: dict
+ :return: Content of response.
+ :rtype: bytearray
+ :raises HoneycombError: If the status code in response is not
+ 200 = OK or 201 = ACCEPTED.
+ """
+
+ if data:
+ status_code, resp = HcUtil. \
+ put_honeycomb_data(node, "config_dhcp_relay", data, path,
+ data_representation=DataRepresentation.JSON)
+ else:
+ status_code, resp = HcUtil. \
+ delete_honeycomb_data(node, "config_dhcp_relay", path)
+
+ if status_code not in (HTTPCodes.OK, HTTPCodes.ACCEPTED):
+ raise HoneycombError(
+ "The configuration of DHCP relay was not successful. "
+ "Status code: {0}.".format(status_code))
+ return resp
+
+ @staticmethod
+ def add_dhcp_relay(node, data, ip_version, entry_id):
+ """Add a DHCP relay entry to the list on entries.
+
+ :param node: Honeycomb node.
+ :param data: Configuration for the relay entry.
+ :param ip_version: IP protocol version, ipv4 or ipv6.
+ :param entry_id: Numeric ID.
+ :type node: dict
+ :type data: dict
+ :type ip_version: str
+ :type entry_id: int
+ :returns: Content of response.
+ :rtype: bytearray
+ """
+
+ path = "/relay/dhcp:{0}/{1}".format(ip_version, entry_id)
+
+ return DHCPRelayKeywords._set_dhcp_relay_properties(node, path, data)
+
+ @staticmethod
+ def clear_dhcp_relay_configuration(node):
+ """Remove all DHCP relay configuration from the node.
+
+ :param node: Honeycomb node.
+ :type node: dict
+ :returns: Content of response.
+ :rtype: bytearray
+ """
+ return DHCPRelayKeywords._set_dhcp_relay_properties(node, "")
+
+ @staticmethod
+ def get_dhcp_relay_oper_data(node):
+ """Get operational data about the DHCP relay feature.
+
+ :param node: Honeycomb node.
+ :type node: dict
+ :returns: Content of response.
+ :rtype: bytearray
+ :raises HoneycombError: If the status code in response is not 200 = OK.
+ """
+
+ status_code, resp = HcUtil. \
+ get_honeycomb_data(node, "config_dhcp_relay")
+
+ if status_code != HTTPCodes.OK:
+ raise HoneycombError(
+ "Could not retrieve DHCP relay configuration. "
+ "Status code: {0}.".format(status_code))
+ return resp