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# ============LICENSE_START=======================================================
# Copyright (c) 2017-2020 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=========================================================
"""
trapd_http_session establishes an http session for future use in publishing
messages to the dmaap cluster.
"""
__docformat__ = 'restructuredtext'
import os
import requests
import traceback
prog_name = os.path.basename(__file__)
# # # # # # # # # # # # #
# fx: init_session_obj
# # # # # # # # # # # # #
def init_session_obj():
"""
Initializes and returns a http request session object for later use
:Parameters:
none
:Exceptions:
session object creation
this function will throw an exception if unable to create
a new session object
:Keywords:
http request session
:Variables:
none
"""
try:
_loc_session = requests.Session()
except Exception as e:
msg = "Unable to create new http session - FATAL ERROR, exiting"
ecomp_logger(tds.LOG_TYPE_ERROR, tds.SEV_FATAL, tds.CODE_GENERAL, msg)
stdout_logger(msg)
cleanup_and_exit(1, tds.pid_file_name)
return _loc_session
# # # # # # # # # # # # #
# fx: close_session_obj
# # # # # # # # # # # # #
def close_session_obj(_loc_http_requ_session):
"""
Closes existing http request session object
:Parameters:
_loc_http_requ_session
:Exceptions:
session object creation
this function will throw an exception if unable to create
a new session object
:Keywords:
http request session
:Variables:
none
"""
# Close existing session if present.
if _loc_http_requ_session is not None:
try:
_loc_http_requ_session.close()
return True
except Exception as e:
msg = "Unable to close current http session - FATAL ERROR, exiting"
ecomp_logger(tds.LOG_TYPE_ERROR, tds.SEV_FATAL,
tds.CODE_GENERAL, msg)
stdout_logger(msg)
cleanup_and_exit(1, tds.pid_file_name)
# # # # # # # # # # # # #
# fx: reset_session_obj
# # # # # # # # # # # # #
def reset_session_obj(_loc_http_requ_session):
"""
Closes existing http request session object
and re-opens with current config vals
:Parameters:
_loc_http_requ_session
:Exceptions:
session object creation
this function will throw an exception if unable to create
a new session object
:Keywords:
http request session
:Variables:
none
"""
# close existing http_requ_session if present
ret = close_session_obj(_loc_http_requ_session)
# open new http_requ_session
_loc_http_requ_session = init_session_obj()
return _loc_http_requ_session
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