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# Copyright (c) 2016 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.
"""Used to parse JSON files or JSON data strings to dictionaries"""
import json
from os import uname
class JsonParser(object):
"""Parses JSON data string or files containing JSON data strings"""
def __init__(self):
pass
@staticmethod
def parse_data(json_data):
"""Return list parsed from JSON data string.
Translates JSON data into list of values/dictionaries/lists.
:param json_data: Data in JSON format.
:type json_data: str
:return: JSON data parsed as python list.
:rtype: list
"""
if "4.2.0-42-generic" in uname():
# TODO: remove ugly workaround
# On Ubuntu14.04 the VAT console returns "error:misc" even after
# some commands execute correctly. This causes problems
# with parsing JSON data.
known_errors = ["sw_interface_dump error: Misc",
"lisp_eid_table_dump error: Misc",
"show_lisp_status error: Misc",
"lisp_map_resolver_dump error: Misc",
"show_lisp_pitr error: Misc",
"snat_static_mapping_dump error: Misc",
]
for item in known_errors:
if item in json_data:
json_data = json_data.replace(item, "")
print("Removing API error: *{0}* "
"from JSON output.".format(item))
parsed_data = json.loads(json_data)
return parsed_data
@staticmethod
def parse_file(json_file):
"""Return list parsed from file containing JSON string.
Translates JSON data found in file into list of
values/dictionaries/lists.
:param json_file: File with JSON type data.
:type json_file: str
:return: JSON data parsed as python list.
:rtype: list
"""
input_data = open(json_file).read()
parsed_data = JsonParser.parse_data(input_data)
return parsed_data
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