Class: LogAnalyzer::Analyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/log_analyzer/analyzer.rb

Constant Summary collapse

DEFAULT_TABLE_WIDTH =

width

120
MATCHER = 
/Rendered (.*) \((.*)ms\)/.freeze
DANGER_DEFAULT =

ms

800
WARNING_DEFAULT =

ms

400
INFO_DEFAULT =

ms

100

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename:) ⇒ Analyzer

Returns a new instance of Analyzer.



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# File 'lib/log_analyzer/analyzer.rb', line 13

def initialize(filename:)
  @filename = filename
  @stats    = {}
end

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/log_analyzer/analyzer.rb', line 10

def filename
  @filename
end

#stats ⇒ Object (readonly)

Returns the value of attribute stats.



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# File 'lib/log_analyzer/analyzer.rb', line 11

def stats
  @stats
end

Instance Method Details

#avg_label(avg) ⇒ Object 



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# File 'lib/log_analyzer/analyzer.rb', line 58

def avg_label(avg)
  str = avg.to_s
  if avg > DANGER_DEFAULT
    str.white.on_red
  elsif avg > WARNING_DEFAULT
    str.red
  elsif avg > INFO_DEFAULT
    str.yellow
  else
    str.green
  end
end

#order(by: :time) ⇒ Object 



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# File 'lib/log_analyzer/analyzer.rb', line 29

def order(by: :time)
  case by.to_sym
  when :name
    @stats = @stats.sort{|a, b| a[0] <=> b[0] }
  when :time
    @stats = @stats.sort{|a, b| a[1].avg <=> b[1].avg }
  when :count
    @stats = @stats.sort{|a, b| a[1].count <=> b[1].count }
  end
end

#run ⇒ Object 



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# File 'lib/log_analyzer/analyzer.rb', line 18

def run
  IO.foreach(filename).each do |line|
    if line =~ MATCHER
      if $1 && $2
        @stats[$1] ||= Stat.new
        @stats[$1].push($2)
      end
    end
  end
end

#visualize(limit: 100) ⇒ Object 



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# File 'lib/log_analyzer/analyzer.rb', line 40

def visualize(limit: 100)
  length = (0..DEFAULT_TABLE_WIDTH - 20).freeze
  table  = Terminal::Table.new \
    headings: ['Path', 'Count', 'AVG (ms)', 'Max', 'Min'],
    width: DEFAULT_TABLE_WIDTH do |t|
    stats.each do |path, stat|
      t.add_row [
        path[length],
        stat.count,
        avg_label(stat.avg),
        stat.max,
        stat.min,
      ]
    end
  end
  puts table
end