131 lines
4.0 KiB
Python
Executable File
131 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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#
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# Copyright © 2014 Rackspace Hosting.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Command line tool help you debug your distiller event definitions.
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Feed it a list of test notifications in json format, and it will show
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you what events will be generated.
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"""
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import argparse
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import json
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import sys
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from stackdistiller import condenser
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from stackdistiller import distiller
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class TestCondenser(condenser.CondenserBase):
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def __init__(self):
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self.clear()
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def add_trait(self, name, trait_type, value):
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self.traits.append(distiller.Trait(name, trait_type, value))
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def add_envelope_info(self, event_type, message_id, when):
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self.event_type = event_type
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self.message_id = message_id
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self.when = when
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def get_event(self):
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return self
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def clear(self):
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self.event_type = None
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self.message_id = None
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self.when = None
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self.traits = []
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def __str__(self):
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text = ["Event: %s (id: %s) at %s" % (self.event_type,
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self.message_id,
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self.when)]
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for trait in sorted(self.traits):
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text.append(" Trait: name: %s, type: %s, value: %s" % trait)
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text.append('')
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return "\n".join(text)
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def test_data(args):
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if not args.test_data:
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n = json.load(sys.stdin)
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if args.list:
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for notif in n:
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yield notif
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else:
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yield n
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else:
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for f in args.test_data:
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with open(f, 'r') as data:
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n = json.load(data)
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if args.list:
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for notif in n:
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yield notif
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else:
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yield n
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parser = argparse.ArgumentParser(
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description="Test Distiller configuration")
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parser.add_argument(
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'-c', '--config',
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default='event_definitions.yaml',
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help='Name of event definitions file '
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'to test (Default: %(default)s)')
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parser.add_argument(
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'-l', '--list', action='store_true',
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help='Test data files contain JSON list of notifications.'
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' (By default data files should contain a single '
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'notification.)')
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parser.add_argument(
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'-d', '--add_default_definition', action='store_true',
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help='Add default event definition. Normally, '
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'notifications are dropped if there is no event '
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'definition for their event_type. Setting this adds a '
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'"catchall" that converts unknown notifications to Events'
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' with a few basic traits.')
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parser.add_argument('-o', '--output', type=argparse.FileType('w'),
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default=sys.stdout, help="Output file. Default stdout")
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parser.add_argument(
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'test_data', nargs='*', metavar='JSON_FILE',
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help="Test notifications in JSON format. Defaults to stdin")
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args = parser.parse_args()
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config = distiller.load_config(args.config)
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out = args.output
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out.write("Definitions file: %s\n" % args.config)
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notifications = test_data(args)
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dist = distiller.Distiller(config, catchall=args.add_default_definition)
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nct = 0
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drops = 0
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cond = TestCondenser()
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for notification in notifications:
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cond.clear()
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nct += 1
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if dist.to_event(notification, cond) is None:
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out.write("Dropped notification: %s\n" %
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notification['message_id'])
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drops += 1
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else:
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event = cond.get_event()
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out.write(str(event))
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out.write("--\n")
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out.write("Notifications tested: %s (%s dropped)\n" % (nct, drops))
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