Class: Cosmos::AnalyzeLog

Inherits:
Object show all
Defined in:
lib/cosmos/gui/utilities/analyze_log.rb

Overview

Class to analyze log files and report packet counts.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent, packet_log_frame) ⇒ AnalyzeLog

Returns a new instance of AnalyzeLog.



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# File 'lib/cosmos/gui/utilities/analyze_log.rb', line 16

def initialize(parent, packet_log_frame)
  @parent = parent
  @packet_log_frame = packet_log_frame
  @input_filenames = []
  @packet_log_reader = System.default_packet_log_reader.new(*System.default_packet_log_reader_params)
  @time_start = nil
  @time_end = nil
  @cancel = false
end

Class Method Details

.execute(parent, packet_log_frame) ⇒ Object 



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# File 'lib/cosmos/gui/utilities/analyze_log.rb', line 145

def self.execute(parent, packet_log_frame)
  log_analyzer = AnalyzeLog.new(parent, packet_log_frame)
  log_analyzer.analyze_log_files()
end

Instance Method Details

#analyze_files(progress_dialog) ⇒ Object 



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# File 'lib/cosmos/gui/utilities/analyze_log.rb', line 108

def analyze_files(progress_dialog)
  log_file_count = 1
  pkt_counts = {}
  @input_filenames.each do |log_file|
    break if @cancel
    begin
      Cosmos.check_log_configuration(@packet_log_reader, log_file)
      file_size = File.size(log_file).to_f
      progress_dialog.append_text("Analyzing File #{log_file_count}/#{@input_filenames.length}: #{log_file}")
      progress_dialog.set_step_progress(0.0)
      @packet_log_reader.each(
        log_file, # log filename
        true,     # identify and define packet
        @time_start,
        @time_end) do |packet|

        break if @cancel
        progress_dialog.set_step_progress(@packet_log_reader.bytes_read / file_size)
        pkt_counts[log_file] ||= {}
        pkt_counts[log_file]["#{packet.target_name} #{packet.packet_name}"] ||= 0
        pkt_counts[log_file]["#{packet.target_name} #{packet.packet_name}"] += 1       
      end
      progress_dialog.set_step_progress(1.0) if !@cancel
      progress_dialog.set_overall_progress(log_file_count.to_f / @input_filenames.length.to_f) if !@cancel
    rescue Exception => error
      progress_dialog.append_text("Error analyzing: #{error.formatted}\n")
    end
    log_file_count += 1
  end
  return pkt_counts
end

#analyze_log_files ⇒ Object 



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# File 'lib/cosmos/gui/utilities/analyze_log.rb', line 26

def analyze_log_files
  @cancel = false
  pkt_counts = {}
  begin
    @packet_log_reader = @packet_log_frame.packet_log_reader
    @input_filenames = @packet_log_frame.filenames.sort
    @time_start = @packet_log_frame.time_start
    @time_end = @packet_log_frame.time_end
    unless @input_filenames and @input_filenames[0]
      Qt::MessageBox.critical(@parent, 'Error', 'Please select at least 1 input file')
      return
    end

    ProgressDialog.execute(@parent, # parent
                           'Log File Progress', # title
                           600, # width, height
                           300) do |progress_dialog|
      progress_dialog.cancel_callback = method(:cancel_callback)
      progress_dialog.enable_cancel_button

      begin
        Cosmos.set_working_dir do
          pkt_counts = analyze_files(progress_dialog)
        end
      ensure
        progress_dialog.complete
      end
    end

    if !@cancel
      results = "Log Analysis Complete.\n"
      results << "Log Reader: #{@packet_log_reader.class.to_s}\n"
      if @time_start
        results << "Start time: #{@time_start.formatted}\n"
      else
        results << "Start time: not specified\n"
      end
      if @time_end
        results << "End time:   #{@time_end.formatted}\n"
      else
        results << "End time:   not specified\n"
      end
      results << "\n"

      if pkt_counts.empty?
        results << "No files analyzed"
      else
        if pkt_counts.keys.size > 1
          pkt_counts_total = {}
          pkt_counts.each do |file, counts|
            counts.each do |pkt, count|
              pkt_counts_total[pkt] ||= 0
              pkt_counts_total[pkt] += count
            end
          end
          results << "Total count of packets found in all files:\n"
          pkt_counts_total.keys.sort.each do |pkt|
            results << "#{pkt}: #{pkt_counts_total[pkt]}\n"
          end
          results << "\n"
        end

        pkt_counts.each do |file, counts|
          results << "Packets found in file: #{file}\n"
          if counts.empty?
            results << "  No packets found\n"
          else
            counts.keys.sort.each do |pkt|
              results << "#{pkt}: #{counts[pkt]}\n"
            end
          end
          results << "\n"
        end
      end
      ScrollTextDialog.new(@parent, 'Packet Counts', results)
    end

  rescue => error
    Qt::MessageBox.critical(@parent, 'Error!', "Error Analyzing Log File(s)\n#{error.formatted}")
  end
end

#cancel_callback(progress_dialog = nil) ⇒ Object 



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# File 'lib/cosmos/gui/utilities/analyze_log.rb', line 140

def cancel_callback(progress_dialog = nil)
  @cancel = true
  return true, false
end