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# org.onap.dcae
# ================================================================================
# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# 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.
# ============LICENSE_END=========================================================
#
# ECOMP is a trademark and service mark of AT&T Intellectual Property.
""" send notification to deploy-handler"""
import logging
import json
import requests
from .config import Config
from .discovery import DiscoveryClient
from .onap.audit import REQUEST_X_ECOMP_REQUESTID, Audit, AuditHttpCode
POOL_SIZE = 1
class DeployHandler(object):
""" deploy-handler """
_logger = logging.getLogger("policy_handler.deploy_handler")
_lazy_inited = False
_requests_session = None
_config = None
_url = None
_url_path = None
_target_entity = None
@staticmethod
def _lazy_init():
""" set static properties """
if DeployHandler._lazy_inited:
return
DeployHandler._lazy_inited = True
DeployHandler._requests_session = requests.Session()
DeployHandler._requests_session.mount(
'https://',
requests.adapters.HTTPAdapter(pool_connections=POOL_SIZE, pool_maxsize=POOL_SIZE)
)
DeployHandler._requests_session.mount(
'http://',
requests.adapters.HTTPAdapter(pool_connections=POOL_SIZE, pool_maxsize=POOL_SIZE)
)
DeployHandler._target_entity = Config.config["deploy_handler"]
DeployHandler._url = DiscoveryClient.get_service_url(DeployHandler._target_entity)
DeployHandler._url_path = (DeployHandler._url or "") + '/policy'
DeployHandler._logger.info("DeployHandler url(%s)", DeployHandler._url)
@staticmethod
def policy_update(audit, latest_policies, removed_policies=None,
errored_policies=None, catch_up=False):
"""post policy_updated message to deploy-handler"""
if not latest_policies and not removed_policies and not catch_up:
return
latest_policies = latest_policies or {}
removed_policies = removed_policies or {}
errored_policies = errored_policies or {}
DeployHandler._lazy_init()
msg = {
"catch_up" : catch_up,
"latest_policies" : latest_policies,
"removed_policies" : removed_policies,
"errored_policies" : errored_policies
}
sub_aud = Audit(aud_parent=audit, targetEntity=DeployHandler._target_entity,
targetServiceName=DeployHandler._url_path)
headers = {REQUEST_X_ECOMP_REQUESTID : sub_aud.request_id}
msg_str = json.dumps(msg)
headers_str = json.dumps(headers)
DeployHandler._logger.info(
"catch_up(%s) latest_policies[%s], removed_policies[%s], errored_policies[%s]",
catch_up, len(latest_policies), len(removed_policies), len(errored_policies))
log_line = "post to deployment-handler {0} msg={1} headers={2}".format(
DeployHandler._url_path, msg_str, headers_str)
DeployHandler._logger.info(log_line)
sub_aud.metrics_start(log_line)
if not DeployHandler._url:
error_msg = "no url found to {0}".format(log_line)
DeployHandler._logger.error(error_msg)
sub_aud.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
audit.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
sub_aud.metrics(error_msg)
return
res = None
try:
res = DeployHandler._requests_session.post(
DeployHandler._url_path, json=msg, headers=headers
)
except requests.exceptions.RequestException as ex:
error_msg = "failed to post to deployment-handler {0} {1} msg={2} headers={3}" \
.format(DeployHandler._url_path, str(ex), msg_str, headers_str)
DeployHandler._logger.exception(error_msg)
sub_aud.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
audit.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
sub_aud.metrics(error_msg)
return
sub_aud.set_http_status_code(res.status_code)
audit.set_http_status_code(res.status_code)
sub_aud.metrics(
"response from deployment-handler to post {0}: {1} msg={2} text={3} headers={4}" \
.format(DeployHandler._url_path, res.status_code, msg_str, res.text,
res.request.headers))
if res.status_code == requests.codes.ok:
return res.json()
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