root / snf-pithos-app / pithos / middleware / log.py @ 4a669c71
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1 | 2e662088 | Antony Chazapis | # Copyright 2011-2012 GRNET S.A. All rights reserved.
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2 | aa4fac11 | Giorgos Verigakis | #
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3 | aa4fac11 | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
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4 | aa4fac11 | Giorgos Verigakis | # without modification, are permitted provided that the following
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5 | aa4fac11 | Giorgos Verigakis | # conditions are met:
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6 | aa4fac11 | Giorgos Verigakis | #
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7 | aa4fac11 | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
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8 | aa4fac11 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
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9 | aa4fac11 | Giorgos Verigakis | # disclaimer.
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10 | aa4fac11 | Giorgos Verigakis | #
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11 | aa4fac11 | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
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12 | aa4fac11 | Giorgos Verigakis | # copyright notice, this list of conditions and the following
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13 | aa4fac11 | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
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14 | aa4fac11 | Giorgos Verigakis | # provided with the distribution.
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15 | aa4fac11 | Giorgos Verigakis | #
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16 | aa4fac11 | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | aa4fac11 | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | aa4fac11 | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | aa4fac11 | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | aa4fac11 | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | aa4fac11 | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | aa4fac11 | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | aa4fac11 | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | aa4fac11 | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | aa4fac11 | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | aa4fac11 | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | aa4fac11 | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
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28 | aa4fac11 | Giorgos Verigakis | #
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29 | aa4fac11 | Giorgos Verigakis | # The views and conclusions contained in the software and
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30 | aa4fac11 | Giorgos Verigakis | # documentation are those of the authors and should not be
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31 | aa4fac11 | Giorgos Verigakis | # interpreted as representing official policies, either expressed
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32 | aa4fac11 | Giorgos Verigakis | # or implied, of GRNET S.A.
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33 | aa4fac11 | Giorgos Verigakis | |
34 | aa4fac11 | Giorgos Verigakis | from django.conf import settings |
35 | d7d60147 | Antony Chazapis | from django.core.exceptions import MiddlewareNotUsed |
36 | aa4fac11 | Giorgos Verigakis | |
37 | 18d8fb23 | Antony Chazapis | from pithos.lib.dictconfig import dictConfig |
38 | 18d8fb23 | Antony Chazapis | |
39 | d7d60147 | Antony Chazapis | import logging |
40 | aa4fac11 | Giorgos Verigakis | |
41 | d7d60147 | Antony Chazapis | |
42 | 18d8fb23 | Antony Chazapis | class NullHandler(logging.Handler): |
43 | 18d8fb23 | Antony Chazapis | def emit(self, record): |
44 | 18d8fb23 | Antony Chazapis | pass
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45 | 18d8fb23 | Antony Chazapis | |
46 | 18d8fb23 | Antony Chazapis | |
47 | d7d60147 | Antony Chazapis | class LoggingConfigMiddleware: |
48 | d7d60147 | Antony Chazapis | def __init__(self): |
49 | d7d60147 | Antony Chazapis | '''Initialise the logging setup from settings, called on first request.'''
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50 | 18d8fb23 | Antony Chazapis | logging_setting = getattr(settings, 'LOGGING_SETUP', None) |
51 | 18d8fb23 | Antony Chazapis | if logging_setting:
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52 | 18d8fb23 | Antony Chazapis | # Disable handlers that are not used by any logger.
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53 | 18d8fb23 | Antony Chazapis | active_handlers = set()
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54 | 18d8fb23 | Antony Chazapis | loggers = logging_setting.get('loggers', {})
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55 | 18d8fb23 | Antony Chazapis | for logger in loggers.values(): |
56 | 18d8fb23 | Antony Chazapis | active_handlers.update(logger.get('handlers', []))
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57 | 18d8fb23 | Antony Chazapis | handlers = logging_setting.get('handlers', {})
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58 | 18d8fb23 | Antony Chazapis | for handler in handlers: |
59 | 18d8fb23 | Antony Chazapis | if handler not in active_handlers: |
60 | 18d8fb23 | Antony Chazapis | handlers[handler] = {'class': 'logging.NullHandler'} |
61 | 18d8fb23 | Antony Chazapis | |
62 | 18d8fb23 | Antony Chazapis | logging.NullHandler = NullHandler |
63 | 18d8fb23 | Antony Chazapis | dictConfig(logging_setting) |
64 | d7d60147 | Antony Chazapis | raise MiddlewareNotUsed('Logging setup only.') |