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#
# ============LICENSE_START=======================================================
# Copyright (C) 2019 Nordix Foundation.
# ================================================================================
# 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.
#
# SPDX-License-Identifier: Apache-2.0
# ============LICENSE_END=========================================================
#
from time import sleep
from org.onap.ccsdk.cds.blueprintsprocessor.functions.restconf.executor import RestconfExecutorExtensionsKt
from org.onap.ccsdk.cds.blueprintsprocessor.functions.resource.resolution import ResourceResolutionExtensionsKt
class RestconfClient:
__base_odl_url = "restconf/config/network-topology:network-topology/topology/topology-netconf/node/"
__odl_status_check_limit = 10
__odl_status_check_pause = 1
# Once confirmed to be reliable, the check should change to use the connection-status API
__odl_status_check_url = "restconf/operational/network-topology:network-topology/topology/topology-netconf/node/"
def __init__(self, log, restconf_component_function):
self.__log = log
self.__component_function = restconf_component_function
def web_client_service(self, identifier):
return RestconfExecutorExtensionsKt.restconfClientService(self.__component_function, identifier)
def resolve_and_generate_message_from_template_prefix(self, artifact_prefix):
return ResourceResolutionExtensionsKt.contentFromResolvedArtifact(self.__component_function, artifact_prefix)
def retrieve_resolved_template_from_database(self, key, artifact_template):
return ResourceResolutionExtensionsKt.storedContentFromResolvedArtifact(self.__component_function, key,
artifact_template)
def mount_device(self, web_client_service, nf_id, mount_payload):
self.__log.debug("mounting device {}", nf_id)
headers = {"Content-Type": "application/xml"}
url = self.__base_odl_url + nf_id
self.__log.debug("sending mount request, url: {}", url)
web_client_service.exchangeResource("PUT", url, mount_payload, headers)
self.__wait_for_odl_to_mount(web_client_service, nf_id)
def __wait_for_odl_to_mount(self, web_client_service, nf_id):
counter = 0
url = self.__odl_status_check_url + nf_id
self.__log.info("url for ODL status check: {}", url)
# TODO: allow JSON format change
expected_result = '"netconf-node-topology:connection-status":"connected"'
while counter < self.__odl_status_check_limit:
result = web_client_service.exchangeResource("GET", url, "")
if expected_result in result.body:
self.__log.info("NF was mounted successfully on ODL")
return None
sleep(self.__odl_status_check_pause)
counter += 1
raise Exception("NF was not mounted on ODL, aborting configuration procedure")
def configure_device_json_patch(self, web_client_service, nf_id, configlet_resource_path, configlet_to_apply):
headers = {"Content-Type": "application/yang.patch+json"}
self.__configure_device(web_client_service, nf_id, configlet_resource_path, configlet_to_apply, headers)
def configure_device_xml_patch(self, web_client_service, nf_id, configlet_resource_path, configlet_to_apply):
headers = {"Content-Type": "application/yang.patch+xml"}
self.__configure_device(web_client_service, nf_id, configlet_resource_path, configlet_to_apply, headers)
def __configure_device(self, web_client_service, nf_id, configlet_resource_path, configlet_to_apply, headers):
self.__log.debug("headers: {}", headers)
self.__log.info("configuring device: {}, Configlet: {}", nf_id, configlet_to_apply)
url = self.__base_odl_url + nf_id + configlet_resource_path
self.__log.debug("sending patch request, url: {}", url)
result = web_client_service.exchangeResource("PATCH", url, configlet_to_apply, headers)
self.__log.info("Configuration application result: {}", result)
def retrieve_device_configuration_subtree(self, web_client_service, nf_id, configlet_resource_path):
url = self.__base_odl_url + nf_id + configlet_resource_path
self.__log.debug("sending GET request, url: {}", url)
result = web_client_service.exchangeResource("GET", url, "")
return result
def unmount_device(self, web_client_service, nf_id):
url = self.__base_odl_url + nf_id
self.__log.debug("sending unmount request, url: {}", url)
web_client_service.exchangeResource("DELETE", url, "")
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