Class: PS::ProcessList::Printer

Inherits:
Object
  • Object
show all
Defined in:
lib/ps/process_list_printer.rb

Instance Method Summary collapse

Constructor Details

#initialize(pl, headers = nil) ⇒ Printer

Returns a new instance of Printer.



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# File 'lib/ps/process_list_printer.rb', line 9

def initialize pl, headers=nil
  @headers = headers || %w{# pid ppid user pcpu mem command}
  @process_list = pl
end

Instance Method Details

#data ⇒ Object 



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# File 'lib/ps/process_list_printer.rb', line 14

def data
  data = []

  data << header_cells = @headers.collect do |header|
    {:val => header, :header => header}
  end

  @process_list.to_a.each_with_index do |proc,i|
    data << @headers.collect do |header|
      val = header == '#' ? i : proc.send(header)
      
      cell = {:val => val, :header => header}

      case header
      when 'pid'
        cell[:format] = [:blue]
      when '#'
        cell[:format] = [:yellow]
        cell[:align] = :right
      when 'user','ruser'
        cell[:align] = :center
      when 'mem'
        cell[:val] = val.round.to_s + 'mb'
        cell[:align] = :right
      when 'pcpu', 'pmem'
        cell[:align] = :right
        cell[:format] = case cell[:val]
        when 0.0...25.0
          []
        when 25.0..75.0
          [:red]
        else
          [:white,:on_red]
        end
        
        cell[:val] = (cell[:val]).to_i.to_s+'%'
      end

      cell
    end
  end

  data
end

#to_s ⇒ Object 



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# File 'lib/ps/process_list_printer.rb', line 59

def to_s
  printgrid(data)
end