Class: MySlog

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

Instance Method Summary collapse

Instance Method Details

#divide(lines) ⇒ Object 



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# File 'lib/myslog.rb', line 25

def divide(lines)
  records = []

  line = lines.shift

  while line
    record = []

    while line != nil && line.start_with?("#")
      record << line.strip
      line = lines.shift
    end

    sql = []
    while line != nil && !line.start_with?("#")
      sql << line.strip
      line = lines.shift
    end
    record << sql.join(" ")

    records << record
  end

  records
end

#parse(text) ⇒ Object 



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# File 'lib/myslog.rb', line 21

def parse(text)
  divide(text.split("\n")).map {|r| parse_record(r) }
end

#parse_record(records) ⇒ Object 



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# File 'lib/myslog.rb', line 51

def parse_record(records)
  response = {}

  while (record = records.shift) != nil

    if record.start_with? "# User@Host:"

      elems = record.split(" ")
      response[:user]      = elems[2].strip
      if elems[5] == nil
        response[:host]    = nil
        response[:host_ip] = elems[4].strip[1...-1]
      else
        response[:host]    = elems[4].strip
        response[:host_ip] = elems[5].strip[1...-1]
      end
    elsif record.start_with? "#"

      # split with two space
      elems = record[2..-1].strip().split "  "
      if elems.size == 1 && elems[0].start_with?("Time:")
        response[:date] = Time.parse(record[8..-1].strip)
      else
        elems.each do |elem|
          name, value = elem.split ":"
          value.strip!
          case value
          when /^\d+$/
            value = value.to_i
          when /^\d+\.\d+(?:e[-+]\d+)?$/
            value = value.to_f
          end
          response[name.downcase.to_sym] = value
        end
      end
    else
      response[:sql] = record
    end
  end

  response
end