annotate commons/core/LoggerFactory.py @ 41:e57682cd6997

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date Thu, 30 May 2013 03:04:47 -0400
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1 # Copyright INRA (Institut National de la Recherche Agronomique)
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2 # http://www.inra.fr
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3 # http://urgi.versailles.inra.fr
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4 #
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5 # This software is governed by the CeCILL license under French law and
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6 # abiding by the rules of distribution of free software. You can use,
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7 # modify and/ or redistribute the software under the terms of the CeCILL
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8 # license as circulated by CEA, CNRS and INRIA at the following URL
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9 # "http://www.cecill.info".
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10 #
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11 # As a counterpart to the access to the source code and rights to copy,
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12 # modify and redistribute granted by the license, users are provided only
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13 # with a limited warranty and the software's author, the holder of the
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14 # economic rights, and the successive licensors have only limited
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15 # liability.
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16 #
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17 # In this respect, the user's attention is drawn to the risks associated
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18 # with loading, using, modifying and/or developing or reproducing the
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19 # software by the user in light of its specific status of free software,
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20 # that may mean that it is complicated to manipulate, and that also
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21 # therefore means that it is reserved for developers and experienced
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22 # professionals having in-depth computer knowledge. Users are therefore
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23 # encouraged to load and test the software's suitability as regards their
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24 # requirements in conditions enabling the security of their systems and/or
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25 # data to be ensured and, more generally, to use and operate it in the
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26 # same conditions as regards security.
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27 #
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28 # The fact that you are presently reading this means that you have had
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29 # knowledge of the CeCILL license and that you accept its terms.
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30
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31
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32 ## @mainpage Documentation of the REPET API
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33 #
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34 # Welcome to the API documentation!
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35 # This API is a set of packages and classes for pipeline(s) development.
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36 #
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37 # @par The "logger" package
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38 #
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39 # Logging is managed via LoggerFactory. This class creates instances of logging.logging python class. It's strongly encouraged to use this factory each time you need to log something.
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40 #
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41 # @par The "checker" package
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42 #
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43 # This package is a set of classes designed to facilitate development of different kind of checks: filesystem checks, environment checks, configuration file checks ...
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44 #
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45 # Classes should subclass checker::IChecker or if a logger is needed: checker::AbstractChecker.
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46 #
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47 # Methods should raise checker::CheckerException.
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48 #
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49 # Use checker::ConfigChecker and checker::ConfigException for configuration files checks.
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50 #
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51 # checker::CheckerUtils is a set of small static methods shared by other classes of checker package.
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52 #
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53 # @par The "coord" package
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54 #
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55 # This package is a set of classes dedicated to coordinates manipulations.
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56 #
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57 # A coord::Range instance records a region on a given sequence (start, end and sequence name).
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58 #
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59 # A coord::Map instance is a coord::Range instance and record a named region on a given sequence (start, end, sequence name and name).
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60 #
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61 # A coord::Set instance is a coord::Map instance and record a named region on a given sequence with an identifier (start, end, sequence name, name and id).
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62 #
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63 # A coord::Align instance handle a match between two sequences, query and subject (pair of coordinates with E-value, score and identity).
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64 #
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65 # A coord::Path instance is a coord::Align instance and handle a match between two sequences, query and subject (pair of coordinates with E-value, score and identity) with an identifier.
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66 #
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67 # A coord::Match instance is a coord::Path instance and handle a chain of match(es) between two sequences, query and subject, with an identifier and the length of the input sequences.
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68 #
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69 # coord::Align, coord::Map, coord::Path and coord::Set come with utils classes: coord::AlignUtils, coord::MapUtils, coord::PathUtils and coord::SetUtils.
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70 #
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71 # @par The "seq" package
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72 #
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73 # This package a set of classes dedicated to sequences manipulations.
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74 #
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75 # A seq::Bioseq instance records a sequence with its header. seq::Bioseq comes with an utils class: seq::BioseqUtils.
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76 #
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77 # A seq::BioseqDB instance handle a collection of a Bioseq (header-sequence).
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78 #
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79 # A seq::AlignedBioseqDB instance is a multiple sequence alignment representation.
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80 #
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81 # A seq::FastaUtils is a set of static methods for fasta file manipulation.
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82 #
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83 # @par The "sql" package
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84 #
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85 # This package is dedicated to persistance of coord package objects.
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86 # All classes come with dedicated interfaces. Use these interfaces for class manipulation.
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87 # Class names patterns are ITable*Adaptator and Table*Adaptator.
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88 #
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89 # sql::ITablePathAdaptator, sql::TablePathAdaptator /
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90 # sql::ITableSetAdaptator, sql::TableSetAdaptator /
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91 # sql::ITableSeqAdaptator, sql::TableSeqAdaptator /
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92 # sql::ITableMapAdaptator, sql::TableMapAdaptator /
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93 # sql::ITableMatchAdaptator, sql::TableMatchAdaptator.
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94 #
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95
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96 import logging
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97 import sys
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98
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99 DEFAULT_LEVEL = 1
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100 DEFAULT_FORMAT = "%(asctime)s - %(module)s - %(levelname)s - %(message)s"
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101 DATE_FORMAT = "%Y-%m-%d %H:%M:%S"
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102
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103 ## Use this class to create a instance of logging class.
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104 #
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105 class LoggerFactory(object):
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106
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107 def createLogger(name, verbosity = DEFAULT_LEVEL, format = DEFAULT_FORMAT, out = sys.stdout):
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108 log = logging.getLogger(name)
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109
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110 hasStreamHandler = False
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111 for handler in log.handlers:
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112 if handler.__class__ == logging.StreamHandler:
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113 hasStreamHandler = True
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114 break
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115 if not hasStreamHandler:
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116 formatter = logging.Formatter(format, DATE_FORMAT)
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117 handler = logging.StreamHandler(out)
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118 handler.setFormatter(formatter)
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119 log.addHandler(handler)
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120
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121 LoggerFactory.setLevel(log, verbosity)
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122 return log
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123
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124 createLogger = staticmethod(createLogger)
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125
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126 def setLevel(log, verbosity):
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127 log.disabled = False
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128 if verbosity >= 4:
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129 log.setLevel(logging.DEBUG)
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130 elif verbosity == 3:
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131 log.setLevel(logging.INFO)
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132 elif verbosity == 2:
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133 log.setLevel(logging.WARNING)
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134 elif verbosity == 1:
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135 log.setLevel(logging.ERROR)
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136 elif verbosity == 0:
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137 log.disabled = True
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138
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139 setLevel = staticmethod(setLevel)