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nsmirnov |
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import string
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from crab_exceptions import *
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from WorkSpace import WorkSpace
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from threading import RLock
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import common
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class Logger :
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#_instance = None
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#def getInstance():
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# if not Logger._instance :
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# Logger._instance = Logger()
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# return Logger._instance
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#getInstance = staticmethod(getInstance)
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#def hasInstance():
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# return Logger._instance
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#hasInstance = staticmethod(hasInstance)
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def __init__(self):
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#if Logger._instance:
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# raise CrabException, 'Logger already exists.'
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self.lock = RLock()
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self.debug_level = 0
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self.flag_quiet = 0
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self.prog_name = common.prog_name
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log_dir = common.work_space.logDir()
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self.log_fname = log_dir+self.prog_name+'.log'
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self.log_file = open(self.log_fname, 'a')
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self.log_file.write('\n-------------------------------------------\n')
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#Logger._instance = self
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return
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def __del__(self):
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if not self.flag_quiet:
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print self.prog_name+'. Log-file is '+self.log_fname
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self.log_file.close()
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return
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def get(self):
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"""
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Returns list of lines in the log-file.
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"""
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logf = open(self.log_fname, 'r')
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lines = logf.readlines()
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logf.close()
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return lines
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def quiet(self, flag):
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self.flag_quiet = flag
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return
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def flush(self):
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self.log_file.flush()
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return
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def write(self, msg):
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"""
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Stores the given message into log-file.
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"""
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self.lock.acquire()
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self.log_file.write(msg)
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self.lock.release()
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return
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def message(self, msg):
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"""
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Prints the given message on a screen and stores it into log-file.
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"""
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if len(msg) == 0: return
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self.lock.acquire()
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for i in range(len(msg)):
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if msg[i] in string.whitespace:
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if not self.flag_quiet: print msg[i],
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self.log_file.write(msg[i])
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else: break
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pass
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msg0 = msg[i:]
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if not self.flag_quiet: print self.prog_name+'. '+msg0
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self.log_file.write(msg0+'\n')
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self.log_file.flush()
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self.lock.release()
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return
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def setDebugLevel(self, level):
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self.debug_level = level
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return
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def debug(self, level, msg):
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self.lock.acquire()
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if level <= self.debug_level: self.message(msg)
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self.lock.release()
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return
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