mirror of
https://github.com/checktheroads/hyperglass
synced 2024-05-11 05:55:08 +00:00
62 lines
1.9 KiB
Python
62 lines
1.9 KiB
Python
"""Parse Juniper XML Response to Structured Data."""
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# Standard Library
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from typing import Dict, Iterable
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# Third Party
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import xmltodict
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from pydantic import ValidationError
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# Project
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from hyperglass.log import log
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from hyperglass.util import validation_error_message
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from hyperglass.exceptions import ParsingError, ResponseEmpty
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from hyperglass.configuration import params
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from hyperglass.parsing.models.juniper import JuniperRoute
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def parse_juniper(output: Iterable) -> Dict: # noqa: C901
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"""Parse a Juniper BGP XML response."""
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data = {}
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for i, response in enumerate(output):
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try:
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parsed = xmltodict.parse(
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response, force_list=("rt", "rt-entry", "community", "nh")
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)
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if "rpc-reply" in parsed.keys():
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parsed_base = parsed["rpc-reply"]["route-information"]
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elif "route-information" in parsed.keys():
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parsed_base = parsed["route-information"]
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if "route-table" not in parsed_base:
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raise ResponseEmpty(params.messages.no_output)
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if "rt" not in parsed_base["route-table"]:
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raise ResponseEmpty(params.messages.no_output)
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parsed = parsed_base["route-table"]
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validated = JuniperRoute(**parsed)
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serialized = validated.serialize().export_dict()
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if i == 0:
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data.update(serialized)
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else:
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data["routes"].extend(serialized["routes"])
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except xmltodict.expat.ExpatError as err:
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log.critical(str(err))
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raise ParsingError("Error parsing response data")
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except KeyError as err:
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log.critical(f"'{str(err)}' was not found in the response")
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raise ParsingError("Error parsing response data")
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except ValidationError as err:
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log.critical(str(err))
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raise ParsingError(validation_error_message(*err.errors()))
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return data
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