Class: Console::Log4rLogger::ColorConsoleOutputter

Inherits:
Log4r::StdoutOutputter
  • Object
show all
Defined in:
lib/color_console/log4r_logger.rb

Overview

Extends the Log4r StdoutOutputter, adding colorised logging output to the console.

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ ColorConsoleOutputter

Returns a new instance of ColorConsoleOutputter.



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# File 'lib/color_console/log4r_logger.rb', line 16

def initialize(name, options = {})
    super(name, options)
    @console_width = Console.width || -1
end

Instance Method Details

#format(event) ⇒ Object 



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# File 'lib/color_console/log4r_logger.rb', line 22

def format(event)
    @fg = case event.level
    when Log4r::INFO then :white
    when Log4r::CONFIG then :cyan
    when Log4r::WARNING then :yellow
    when Log4r::ERROR then :red
    when Log4r::DEBUG then :dark_gray
    else :light_gray
    end

    if event.data
        begin
            thread = Log4r::NDC.peek.to_s.upcase[0, 2]
            level = Log4r::LNAMES[event.level]
            case
            when event.data.is_a?(Exception) || (RUBY_ENGINE == 'jruby' &&
                                                 event.data.java_kind_of?(java.lang.Throwable))
                e = event.data
                msg = "%-8s %-2s  %s: %s\n" % [level, thread, e.class, e.message]
                bt = e.backtrace.take(3).map{ |s| "                 from #{s}" }.join("\n")
                msg += bt
            when event.data.is_a?(Array)
                msg = event.data
                case msg.first
                when String then msg[0] = "%-8s %-2s  %s" % [level, thread, msg[0]]
                when Array then msg[0][0] = "%-8s %-2s  %s" % [level, thread, msg[0][0]]
                end
            else
                msg_lines = Console.wrap_text(event.data, @console_width - 13)
                msg = ""
                msg_lines.each_with_index do |line, i|
                    fmt = "%-8s %-2s  %s" % [[level][i], [thread][i], line]
                    msg += fmt
                    msg += "\n" if @console_width < 0 || fmt.length < @console_width
                end
            end
            msg.chomp
        rescue Object => ex
            "(Unable to format event.data due to #{ex})\n"
        end
    end
end

#write(data) ⇒ Object 



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# File 'lib/color_console/log4r_logger.rb', line 66

def write(data)
    if data.is_a?(Array)
        if data[0].is_a?(String) && (data.length == 0 || data[1].is_a?(Symbol))
            Console.puts(*data)
        else
            data.each do |chunk|
                Console.write(*chunk)
            end
            Console.puts
        end
    elsif data
        Console.puts(data, @fg)
    end
end