third_party/WebKit/Tools/Scripts/webkitpy/common/net/networktransaction.py - Issue 2578213005: Use underscores to separate words in filenames in webkitpy.

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Issue 2578213005: Use underscores to separate words in filenames in webkitpy. (Closed)

Patch Set: Created 4 years ago

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1 # Copyright (C) 2010 Google Inc. All rights reserved.

2 #

3 # Redistribution and use in source and binary forms, with or without

4 # modification, are permitted provided that the following conditions are

5 # met:

6 #

7 # * Redistributions of source code must retain the above copyright

8 # notice, this list of conditions and the following disclaimer.

9 # * Redistributions in binary form must reproduce the above

10 # copyright notice, this list of conditions and the following disclaimer

11 # in the documentation and/or other materials provided with the

12 # distribution.

13 # * Neither the name of Google Inc. nor the names of its

14 # contributors may be used to endorse or promote products derived from

15 # this software without specific prior written permission.

16 #

17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

28

29 import logging

30 import time

31 import urllib2

32

33 _log = logging.getLogger(__name__)

34

35

36 class NetworkTimeout(Exception):

37

38 def __str__(self):

39 return 'NetworkTimeout'

40

41

42 class NetworkTransaction(object):

43

44 def __init__(self, initial_backoff_seconds=10, grown_factor=1.5, timeout_sec onds=(10 * 60), convert_404_to_None=False):

45 self._initial_backoff_seconds = initial_backoff_seconds

46 self._grown_factor = grown_factor

47 self._timeout_seconds = timeout_seconds

48 self._convert_404_to_None = convert_404_to_None

49 self._total_sleep = 0

50 self._backoff_seconds = 0

51

52 def run(self, request):

53 self._total_sleep = 0

54 self._backoff_seconds = self._initial_backoff_seconds

55 while True:

56 try:

57 return request()

58 except urllib2.HTTPError as e:

59 if self._convert_404_to_None and e.code == 404:

60 return None

61 self._check_for_timeout()

62 _log.warning("Received HTTP status %s loading \"%s\". Retrying in %s seconds...",

63 e.code, e.filename, self._backoff_seconds)

64 self._sleep()

65

66 def _check_for_timeout(self):

67 if self._total_sleep + self._backoff_seconds > self._timeout_seconds:

68 raise NetworkTimeout()

69

70 def _sleep(self):

71 time.sleep(self._backoff_seconds)

72 self._total_sleep += self._backoff_seconds

73 self._backoff_seconds *= self._grown_factor

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