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https://github.com/Hopiu/linkchecker.git
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89 lines
3 KiB
Python
89 lines
3 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2006-2012 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""Logger for aggregator instances"""
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import threading
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import thread
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from ..decorators import synchronized
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_lock = threading.Lock()
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class Logger (object):
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"""Thread safe multi-logger class used by aggregator instances."""
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def __init__ (self, config):
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"""Initialize basic logging variables."""
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self.loggers = [config['logger']]
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self.loggers.extend(config['fileoutput'])
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self.verbose = config["verbose"]
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self.complete = config["complete"]
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self.warnings = config["warnings"]
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def start_log_output (self):
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"""
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Start output of all configured loggers.
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"""
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for logger in self.loggers:
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logger.start_output()
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def end_log_output (self):
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"""
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End output of all configured loggers.
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"""
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for logger in self.loggers:
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logger.end_output()
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def add_statistics(self, robots_txt_stats, download_stats):
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"""Add statistics to logger."""
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for logger in self.loggers:
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logger.add_statistics(robots_txt_stats, download_stats)
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def do_print (self, url_data):
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"""Determine if URL entry should be logged or not."""
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if self.complete:
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return True
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if url_data.cached and url_data.valid:
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return False
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if self.verbose:
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return True
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if self.warnings and url_data.warnings:
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return True
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return not url_data.valid
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@synchronized(_lock)
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def log_url (self, url_data):
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"""Send new url to all configured loggers."""
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self.check_active_loggers()
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do_print = self.do_print(url_data)
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# Only send a transport object to the loggers, not the complete
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# object instance.
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transport = url_data.to_wire()
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for log in self.loggers:
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log.log_filter_url(transport, do_print)
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@synchronized(_lock)
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def log_internal_error (self):
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"""Document that an internal error occurred."""
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for logger in self.loggers:
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logger.log_internal_error()
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def check_active_loggers(self):
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"""Check if all loggers are deactivated due to I/O errors."""
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for logger in self.loggers:
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if logger.is_active:
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break
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else:
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thread.interrupt_main()
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