Class: Evidence::ActionParser

Inherits:
Object
  • Object
show all
Defined in:
lib/evidence/action_parser.rb,
lib/evidence/rails_action_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(pid, message, action_patterns) ⇒ ActionParser

Returns a new instance of ActionParser.



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# File 'lib/evidence/action_parser.rb', line 4

def initialize(pid, message, action_patterns)
  @pid, @message = pid, message
  @processes = Hash.new
  @start_action_pattern, @end_action_pattern = action_patterns[:start], action_patterns[:end]
end

Instance Method Details

#end_action?(msg) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/evidence/action_parser.rb', line 35

def end_action?(msg)
  msg =~ @end_action_pattern
end

#parse_action_logs(logs) ⇒ Object 



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# File 'lib/evidence/action_parser.rb', line 27

def parse_action_logs(logs)
  {
    request: request(@message[logs[0]]),
    response: response(@message[logs[-1]]),
    logs: logs
  }
end

#request(msg) ⇒ Object 



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# File 'lib/evidence/action_parser.rb', line 43

def request(msg)
  to_hash(@start_action_pattern.match(msg))
end

#response(msg) ⇒ Object 



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# File 'lib/evidence/action_parser.rb', line 47

def response(msg)
  to_hash(@end_action_pattern.match(msg))
end

#start_action?(msg) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/evidence/action_parser.rb', line 39

def start_action?(msg)
  msg =~ @start_action_pattern
end

#to_hash(m) ⇒ Object 



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# File 'lib/evidence/action_parser.rb', line 51

def to_hash(m)
  Hash[m.names.map(&:to_sym).zip(m.captures)]
end

#to_proc ⇒ Object 



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# File 'lib/evidence/action_parser.rb', line 10

def to_proc
  lambda do |log|
    pid = @pid[log]
    if @processes.has_key?(pid)
      @processes[pid] << log
      if end_action?(@message[log])
        parse_action_logs(@processes.delete(pid))
      end
    else
      if start_action?(@message[log])
        @processes[pid] = [log]
      end
      nil
    end
  end
end