Class: Spider::Logger::LogDevice

Inherits:
Logger::LogDevice
  • Object
show all
Defined in:
lib/spiderfw/utils/logger.rb

Instance Method Summary collapse

Instance Method Details

#shift_log_age ⇒ Object 



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# File 'lib/spiderfw/utils/logger.rb', line 264

def shift_log_age
    super
    (@shift_age-3).downto(0) do |i|
        if FileTest.exist?("#{@filename}.#{i}.gz")
            File.rename("#{@filename}.#{i}.gz", "#{@filename}.#{i+1}.gz")
        end
    end
    if Spider.conf.get('log.gzip')
        gzip_filename = "#{@filename}.0.gz"
        f = File.open("#{@filename}.0")
        Zlib::GzipWriter.open(gzip_filename) do | gzip|
            f.each do |line|
                gzip << line
            end
        end
        File.unlink("#{@filename}.0")
        f.close
    end
    if keep = Spider.conf.get('log.keep')
        dir = File.dirname(@filename)
        basename = File.basename(@filename)
        Dir.glob(File.join(dir, "#{basename}.*")).each do |logfile|
            name = File.basename(logfile)
            if logfile =~ /\.(\d+)(\.gz)?$/
                File.unlink(logfile) if $1.to_i >= Spider.config.get('log.keep')
            end
        end
    end
    return true
end

#shift_log_period(now) ⇒ Object 



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# File 'lib/spiderfw/utils/logger.rb', line 229

def shift_log_period(now)
    super
    postfix = previous_period_end(now).strftime("%Y%m%d")	# YYYYMMDD
    if Spider.conf.get('log.gzip')
        gzip_filename = "#{@filename}.#{postfix}.gz"
        f = File.open("#{@filename}.#{postfix}")
        Zlib::GzipWriter.open(gzip_filename) do | gzip|
            f.each do |line|
                gzip << line
            end
        end
        File.unlink("#{@filename}.#{postfix}")
        f.close
    end
    if keep = Spider.conf.get('log.keep')
        dir = File.dirname(@filename)
        basename = File.basename(@filename)
        dates = []
        zipped = {}
        Dir.glob(File.join(dir, "#{basename}.*")).each do |logfile|
            name = File.basename(logfile)
            if logfile =~ /\.(\d+)(\.gz)?$/
                dates << $1
                zipped[$1] = $2
            end
        end
        (dates - dates.sort.reverse[0..keep-1]).each do |d|
            fname = "#{@filename}.#{d}"
            fname += ".gz" if zipped[d]
            File.unlink(fname)
        end
    end
    return true
end