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-rw-r--r--ruby_1_9_3/lib/webrick/log.rb136
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diff --git a/ruby_1_9_3/lib/webrick/log.rb b/ruby_1_9_3/lib/webrick/log.rb
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--- a/ruby_1_9_3/lib/webrick/log.rb
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-#--
-# log.rb -- Log Class
-#
-# Author: IPR -- Internet Programming with Ruby -- writers
-# Copyright (c) 2000, 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
-# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
-# reserved.
-#
-# $IPR: log.rb,v 1.26 2002/10/06 17:06:10 gotoyuzo Exp $
-
-module WEBrick
-
- ##
- # A generic logging class
-
- class BasicLog
- # log-level constants
- FATAL, ERROR, WARN, INFO, DEBUG = 1, 2, 3, 4, 5
-
- # log-level, messages above this level will be logged
- attr_accessor :level
-
- ##
- # Initializes a new logger for +log_file+ that outputs messages at +level+
- # or higher. +log_file+ can be a filename, an IO-like object that
- # responds to #<< or nil which outputs to $stderr.
- #
- # If no level is given INFO is chosen by default
-
- def initialize(log_file=nil, level=nil)
- @level = level || INFO
- case log_file
- when String
- @log = open(log_file, "a+")
- @log.sync = true
- @opened = true
- when NilClass
- @log = $stderr
- else
- @log = log_file # requires "<<". (see BasicLog#log)
- end
- end
-
- ##
- # Closes the logger (also closes the log device associated to the logger)
- def close
- @log.close if @opened
- @log = nil
- end
-
- ##
- # Logs +data+ at +level+ if the given level is above the current log
- # level.
-
- def log(level, data)
- if @log && level <= @level
- data += "\n" if /\n\Z/ !~ data
- @log << data
- end
- end
-
- ##
- # Synonym for log(INFO, obj.to_s)
- def <<(obj)
- log(INFO, obj.to_s)
- end
-
- # Shortcut for logging a FATAL message
- def fatal(msg) log(FATAL, "FATAL " << format(msg)); end
- # Shortcut for logging an ERROR message
- def error(msg) log(ERROR, "ERROR " << format(msg)); end
- # Shortcut for logging a WARN message
- def warn(msg) log(WARN, "WARN " << format(msg)); end
- # Shortcut for logging an INFO message
- def info(msg) log(INFO, "INFO " << format(msg)); end
- # Shortcut for logging a DEBUG message
- def debug(msg) log(DEBUG, "DEBUG " << format(msg)); end
-
- # Will the logger output FATAL messages?
- def fatal?; @level >= FATAL; end
- # Will the logger output ERROR messages?
- def error?; @level >= ERROR; end
- # Will the logger output WARN messages?
- def warn?; @level >= WARN; end
- # Will the logger output INFO messages?
- def info?; @level >= INFO; end
- # Will the logger output DEBUG messages?
- def debug?; @level >= DEBUG; end
-
- private
-
- ##
- # Formats +arg+ for the logger
- #
- # * If +arg+ is an Exception, it will format the error message and
- # the back trace.
- # * If +arg+ responds to #to_str, it will return it.
- # * Otherwise it will return +arg+.inspect.
- def format(arg)
- if arg.is_a?(Exception)
- "#{arg.class}: #{arg.message}\n\t" <<
- arg.backtrace.join("\n\t") << "\n"
- elsif arg.respond_to?(:to_str)
- arg.to_str
- else
- arg.inspect
- end
- end
- end
-
- ##
- # A logging class that prepends a timestamp to each message.
-
- class Log < BasicLog
- # Format of the timestamp which is applied to each logged line. The
- # default is <tt>"[%Y-%m-%d %H:%M:%S]"</tt>
- attr_accessor :time_format
-
- ##
- # Same as BasicLog#initialize
- #
- # You can set the timestamp format through #time_format
- def initialize(log_file=nil, level=nil)
- super(log_file, level)
- @time_format = "[%Y-%m-%d %H:%M:%S]"
- end
-
- ##
- # Same as BasicLog#log
- def log(level, data)
- tmp = Time.now.strftime(@time_format)
- tmp << " " << data
- super(level, tmp)
- end
- end
-end