From: Brian Scott <cuiguy@...>
Date: 2007-06-21T14:29:19+09:00
Subject: Re: Log file doesn't show message

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> ----- Original Message -----
> From: "Florian A�mann" <florian.assmann@email.de>
> To: ruby-talk@ruby-lang.org 
> Subject: Re: Log file doesn't show message
> Date: Fri, 15 Jun 2007 18:00:03 +0900
> 
> 
> Hello Tom,
> 
> I'm not sure what this code should do when it's finished but I  
> rewrote the src, hope this helps:
> 
> # Initialize Logger
> require 'logger'
> root_logger = Logger.new 'root.log'
> root_logger.level = Logger::INFO
> 
> # Setup at_exit hook
> at_exit { root_logger.info 'done.' }
> 
> %w{ rubygems hpricot open-uri }.each { |lib| require lib }
> URL_MASK = 'http://www.securityfocus.com/bid/%i'.freeze
> 
> tgroup = ThreadGroup.new
> 
> root_logger.info 'Parsing SecurityFocus...'
> ( 1 .. 3 ).each do |id|
>    root_logger.info "  open #{ URL_MASK % id }"
>    thread = Thread.new do
>      begin
>        Hpricot open( URL_MASK % id )
>      rescue => error
>        root_logger.error error.inspect
>      end
>    end
>    tgroup.add thread
> end
> 
> tgroup.list.each_with_index do |thread, index|
>    if doc = thread.value
>      File.open( "#{ index }.txt", 'w+' ) do |file|
>        file << ( doc/'#vulnerability' ).inner_text
>      end
>    end
> end
> 
> Sincerely
> Florian
> 
> Am 15.06.2007 um 08:34 schrieb Tom Bombadil:
> 
> > Hello,
> >
> > I'd like to have a logging function which either tells me that the  text
> > files have been created successfully or that provides me an error  message
> > should there have been a fatal error. In doing so I coded the  following.
> > Note, however, that a logfile is created but neither of the comments
> > mentioned above are shown. Why?
> >
> >
> > # loads the library modules into the Ruby program
> > require 'rubygems'
> > require 'hpricot'
> > require 'open-uri'
> > require 'logger'
> >
> > # create a log file
> > def do_at_exit(message,exit_code,logger)
> >  at_exit { logger.fatal(message) if exit_code == 1 }
> >  Process.exit(exit_code)
> This would exit the Process (your programm) immediatly after 
> calling  do_at_exit...
> 
> > end
> >
> > logger = Logger.new('logfile.log')
> >
> > # logger formats: DEBUG < INFO < WARN < ERROR < FATAL < UNKNOWN
> > logger.level = Logger::INFO
> > do_at_exit("Text files successfully created.\n",1,logger) if  Process.uid !=
> >
> >
> > # creates array object and iterates over the collection passing  elements one
> > at a time to the "{ |e| ... }" block
> > %w(rubygems hpricot open-uri).each { |e| require e }
> You already requiered these (?)
> 
> >
> > # check new entries
> >
> > # Hpricot() method takes an object and loads the contents into a  document
> > object
> > (1..3).each do |id|
> >  doc = Hpricot(open("http://www.securityfocus.com/bid/#{id}"))
> >
> > # opens a txt-file for each id according to aModeString (w:= write  only,
> > truncates existing file to zero
> > # length or creates a new file for writing) and returns a new File  object
> >  File.open("#{id}.txt", "w+") do |f|
> >    f << (doc/'#vulnerability').inner_text
> >  end
> >
> > end

>


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