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# -------------------------------------------------------------------------
# Copyright (c) 2015-2017 AT&T Intellectual Property
#
# 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.
#
# -------------------------------------------------------------------------
#
from requests import RequestException
import traceback
from osdf.operation.error_handling import build_json_error_body
from osdf.logging.osdf_logging import metrics_log, MH, error_log
from osdf.optimizers.placementopt.conductor import conductor
from osdf.optimizers.licenseopt.simple_license_allocation import license_optim
from osdf.utils.interfaces import get_rest_client
def process_placement_opt(request_json, policies, osdf_config):
"""Perform the work for placement optimization (e.g. call SDC artifact and make conductor request)
NOTE: there is scope to make the requests to policy asynchronous to speed up overall performance
:param request_json: json content from original request
:param policies: flattened policies corresponding to this request
:param osdf_config: configuration specific to OSDF app
:param prov_status: provStatus retrieved from Subscriber policy
:return: None, but make a POST to callback URL
"""
try:
rc = get_rest_client(request_json, service="so")
req_id = request_json["requestInfo"]["requestId"]
transaction_id = request_json['requestInfo']['transactionId']
metrics_log.info(MH.inside_worker_thread(req_id))
license_info = None
if request_json.get('licenseInfo', {}).get('licenseDemands'):
license_info = license_optim(request_json)
# Conductor only handles placement, only call Conductor if placementDemands exist
if request_json.get('placementInfo', {}).get('placementDemands'):
metrics_log.info(MH.requesting("placement/conductor", req_id))
placement_response = conductor.request(request_json, osdf_config, policies)
if license_info: # Attach license solution if it exists
placement_response['solutionInfo']['licenseInfo'] = license_info
else: # License selection only scenario
placement_response = {
"transactionId": transaction_id,
"requestId": req_id,
"requestStatus": "completed",
"statusMessage": "License selection completed successfully",
"solutionInfo": {"licenseInfo": license_info}
}
except Exception as err:
error_log.error("Error for {} {}".format(req_id, traceback.format_exc()))
try:
body = build_json_error_body(err)
metrics_log.info(MH.sending_response(req_id, "ERROR"))
rc.request(json=body, noresponse=True)
except RequestException:
error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc()))
return
try:
metrics_log.info(MH.calling_back_with_body(req_id, rc.url,placement_response))
rc.request(json=placement_response, noresponse=True)
except RequestException : # can't do much here but log it and move on
error_log.error("Error sending asynchronous notification for {} {}".format(req_id, traceback.format_exc()))
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