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Splunk_Deploiement/apps/trackme/bin/trackmeextractjsonmetrics.py

153 lines
4.9 KiB

#!/usr/bin/env python
# coding=utf-8
__author__ = "TrackMe Limited"
__copyright__ = "Copyright 2022-2026, TrackMe Limited, U.K."
__credits__ = "TrackMe Limited, U.K."
__license__ = "TrackMe Limited, all rights reserved"
__version__ = "0.1.0"
__maintainer__ = "TrackMe Limited, U.K."
__email__ = "support@trackme-solutions.com"
__status__ = "PRODUCTION"
# Standard library imports
import os
import sys
import time
import json
# Logging imports
import logging
from logging.handlers import RotatingFileHandler
# Third-party library imports
import urllib3
# Disable InsecureRequestWarning for urllib3
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
# splunk home
splunkhome = os.environ["SPLUNK_HOME"]
# set logging
filehandler = RotatingFileHandler(
"%s/var/log/splunk/trackme_extract_json_metrics.log" % splunkhome,
mode="a",
maxBytes=10000000,
backupCount=1,
)
formatter = logging.Formatter(
"%(asctime)s %(levelname)s %(filename)s %(funcName)s %(lineno)d %(message)s"
)
logging.Formatter.converter = time.gmtime
filehandler.setFormatter(formatter)
log = logging.getLogger() # root logger - Good to get it only once.
for hdlr in log.handlers[:]: # remove the existing file handlers
if isinstance(hdlr, logging.FileHandler):
log.removeHandler(hdlr)
log.addHandler(filehandler) # set the new handler
# set the log level to INFO, DEBUG as the default is ERROR
log.setLevel(logging.INFO)
# append current directory
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
# import libs
import import_declare_test
# import Splunk libs
from splunklib.searchcommands import (
dispatch,
StreamingCommand,
Configuration,
Option,
validators,
)
# impport TrackMe libs
from trackme_libs import trackme_reqinfo
@Configuration(distributed=False)
class TrackMeExtractJsonMetrics(StreamingCommand):
fields = Option(
doc="""
**Syntax:** **fields=****
**Description:** Comma-separated list of fields containing JSON metrics objects.""",
require=False,
default="metrics",
validate=validators.Match("fields", r"^.*$"),
)
def stream(self, records):
# Start performance counter
start = time.time()
# Get request info and set logging level
reqinfo = trackme_reqinfo(
self._metadata.searchinfo.session_key, self._metadata.searchinfo.splunkd_uri
)
log.setLevel(reqinfo["logging_level"])
# Convert fields into a set for faster lookup
fields_set = set(self.fields.split(","))
# Create a set to store unique metric field names
metrics_extracted = set()
# Process records
result_records = []
for record in records:
result_record = {}
# Add fields to the corresponding dictionaries
for key, value in record.items():
if key in fields_set:
try:
# Here we load the JSON object
metrics_json = json.loads(value)
# Now we check its type
if isinstance(metrics_json, dict):
# If it's a dictionary, handle as before
for subkey, subvalue in metrics_json.items():
result_record[subkey] = subvalue
metrics_extracted.add(subkey)
elif isinstance(metrics_json, list):
# If it's a list, handle each element as a dictionary
for elem in metrics_json:
for subkey, subvalue in elem["metrics"].items():
result_record[subkey] = subvalue
metrics_extracted.add(subkey)
# Add the original in pretty print format
result_record[key] = json.dumps(metrics_json, indent=2)
except Exception as e:
logging.error(
f'Failed to extract metrics in field="{key}", value="{value}", exception="{str(e)}"'
)
# Add the original untouched
result_record[key] = value
else:
result_record[key] = value
# Add to the final records
result_records.append(result_record)
# Ensure we have a value for each extracted field, otherwise set to 0
for result_record in result_records:
for field in metrics_extracted:
result_record.setdefault(field, 0)
# Yield the result_record
yield result_record
# Log the run time
logging.info(
f"trackmeextractjsonmetrics has terminated, run_time={round(time.time() - start, 3)}"
)
dispatch(TrackMeExtractJsonMetrics, sys.argv, sys.stdin, sys.stdout, __name__)