kiloeyes/kiloeyes/microservice/metrics_fixer.py

59 lines
1.9 KiB
Python
Executable File

# Copyright 2013 IBM Corp
#
# 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.
import hashlib
import json
import time
from oslo_log import log
LOG = log.getLogger(__name__)
class MetricsFixer(object):
def __init__(self):
LOG.debug('initializing MetricsFixer!')
super(MetricsFixer, self).__init__()
@staticmethod
def _add_hash(message):
# If there is no timestamp, we need to fix that up
if not message.get('timestamp'):
message['timestamp'] = time.time()
# fixup the dimensions_hash
if not message.get('dimensions_hash') and message.get('dimensions'):
key_str = json.dumps(message['dimensions'],
sort_keys=True, indent=None,
separators=(',', ':'))
message['dimensions_hash'] = hashlib.md5(key_str).hexdigest()
return json.dumps(message, sort_keys=False, indent=None,
separators=(',', ':'))
def process_msg(self, msg):
try:
data = json.loads(msg)
if not isinstance(data, list):
data = [data]
result = ''
for item in data:
result += '{"index":{}}\n' + MetricsFixer._add_hash(item)
result += '\n'
return result
except Exception:
LOG.exception('')
return ''