52 lines
1.6 KiB
Python
52 lines
1.6 KiB
Python
"""Event tracker backend that saves events to a python logger."""
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from __future__ import absolute_import
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import logging
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import json
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from django.conf import settings
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from track.backends import BaseBackend
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from track.utils import DateTimeJSONEncoder
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log = logging.getLogger('track.backends.logger')
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application_log = logging.getLogger('track.backends.application_log') # pylint: disable=invalid-name
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class LoggerBackend(BaseBackend):
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"""Event tracker backend that uses a python logger.
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Events are logged to the INFO level as JSON strings.
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"""
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def __init__(self, name, **kwargs):
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"""Event tracker backend that uses a python logger.
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:Parameters:
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- `name`: identifier of the logger, which should have
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been configured using the default python mechanisms.
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"""
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super(LoggerBackend, self).__init__(**kwargs)
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self.event_logger = logging.getLogger(name)
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def send(self, event):
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try:
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event_str = json.dumps(event, cls=DateTimeJSONEncoder)
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except UnicodeDecodeError:
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application_log.exception(
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"UnicodeDecodeError Event_type: %r, Event_source: %r, Page: %r, Referer: %r",
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event.get('event_type'), event.get('event_source'), event.get('page'), event.get('referer')
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)
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raise
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# TODO: remove trucation of the serialized event, either at a
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# higher level during the emittion of the event, or by
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# providing warnings when the events exceed certain size.
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event_str = event_str[:settings.TRACK_MAX_EVENT]
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self.event_logger.info(event_str)
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