Class: NewRelic::Agent::Transaction::DeveloperModeSampleBuffer

Inherits:
TransactionSampleBuffer show all
Defined in:
lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb

Constant Summary collapse

MAX_SAMPLES = 
100

Constants inherited from TransactionSampleBuffer

TransactionSampleBuffer::NO_SAMPLES

Instance Attribute Summary

Attributes inherited from TransactionSampleBuffer

#samples

Instance Method Summary collapse

Methods inherited from TransactionSampleBuffer

#allow_sample?, #full?, #initialize, #reset!, #store, #truncate_samples_if_needed

Constructor Details

This class inherits a constructor from NewRelic::Agent::Transaction::TransactionSampleBuffer

Instance Method Details

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


22
23
24
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 22

def enabled?
  Agent.config[:developer_mode]
end

#harvest_samples ⇒ Object 



18
19
20
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 18

def harvest_samples
  NO_SAMPLES
end

#max_samples ⇒ Object 



14
15
16
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 14

def max_samples
  MAX_SAMPLES
end

#store_previous ⇒ Object

We don’t hold onto previously trapped transactions on harvest We’ve already got all the traces we want, thank you!



33
34
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 33

def store_previous(*)
end

#strip_newrelic_frames(trace) ⇒ Object 



46
47
48
49
50
51
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 46

def strip_newrelic_frames(trace)
  while trace.first =~/\/lib\/new_relic\/agent\//
    trace.shift
  end
  trace
end

#truncate_samples ⇒ Object

Truncate to the last max_samples we’ve received



27
28
29
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 27

def truncate_samples
  @samples = @samples.last(max_samples)
end

#visit_segment(segment) ⇒ Object

Captures the stack trace for a segment This is expensive and not for production mode



38
39
40
41
42
43
44
 
# File 'lib/new_relic/agent/transaction/developer_mode_sample_buffer.rb', line 38

def visit_segment(segment)
  return unless enabled? && segment

  trace = strip_newrelic_frames(caller)
  trace = trace.first(40) if trace.length > 40
  segment[:backtrace] = trace
end