Class: NurseAndrea::ComponentTelemetry

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ComponentTelemetry

Returns a new instance of ComponentTelemetry.



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# File 'lib/nurse_andrea/component_telemetry.rb', line 11

def initialize
  reset!
end

Instance Attribute Details

#cache ⇒ Object (readonly)

Returns the value of attribute cache.



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# File 'lib/nurse_andrea/component_telemetry.rb', line 9

def cache
  @cache
end

#db ⇒ Object (readonly)

Returns the value of attribute db.



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# File 'lib/nurse_andrea/component_telemetry.rb', line 9

def db
  @db
end

#jobs ⇒ Object (readonly)

Returns the value of attribute jobs.



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# File 'lib/nurse_andrea/component_telemetry.rb', line 9

def jobs
  @jobs
end

Instance Method Details

#record_cache_delete ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 36

def record_cache_delete
  @cache[:delete_count] += 1
end

#record_cache_read(hit:) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 27

def record_cache_read(hit:)
  @cache[:read_count] += 1
  hit ? @cache[:hit_count] += 1 : @cache[:miss_count] += 1
end

#record_cache_write ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 32

def record_cache_write
  @cache[:write_count] += 1
end

#record_job_complete(duration_ms:, queue_name: nil) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 40

def record_job_complete(duration_ms:, queue_name: nil)
  @jobs[:complete_count] += 1
  @jobs[:total_duration_ms] += duration_ms
  @jobs[:queue_names].add(queue_name) if queue_name.present?
end

#record_job_enqueue(queue_name: nil) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 46

def record_job_enqueue(queue_name: nil)
  @jobs[:enqueue_count] += 1
  @jobs[:queue_names].add(queue_name) if queue_name.present?
end

#record_job_fail(queue_name: nil) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 51

def record_job_fail(queue_name: nil)
  @jobs[:fail_count] += 1
  @jobs[:queue_names].add(queue_name) if queue_name.present?
end

#record_query(duration_ms:, table: nil) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 15

def record_query(duration_ms:, table: nil)
  @db[:query_count] += 1
  @db[:total_duration_ms] += duration_ms
  @db[:slow_query_count] += 1 if duration_ms > 100
  @db[:tables_accessed].add(table) if table.present?
end

#record_transaction(outcome:) ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 22

def record_transaction(outcome:)
  @db[:transaction_count] += 1
  @db[:rollback_count] += 1 if outcome.to_s == "rollback"
end

#snapshot_and_reset! ⇒ Object 



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# File 'lib/nurse_andrea/component_telemetry.rb', line 56

def snapshot_and_reset!
  metrics = []

  if @db[:query_count] > 0
    metrics << {
      type: "database", tech: @db[:tech],
      interval_ms: NurseAndrea.config.hook_interval_ms,
      query_count: @db[:query_count],
      slow_query_count: @db[:slow_query_count],
      total_duration_ms: @db[:total_duration_ms].round(2),
      tables_accessed: @db[:tables_accessed].to_a,
      transaction_count: @db[:transaction_count],
      rollback_count: @db[:rollback_count],
      error_count: 0
    }
  end

  if @cache[:read_count] > 0 || @cache[:write_count] > 0
    metrics << {
      type: "cache", tech: @cache[:tech],
      interval_ms: NurseAndrea.config.hook_interval_ms,
      read_count: @cache[:read_count], write_count: @cache[:write_count],
      hit_count: @cache[:hit_count], miss_count: @cache[:miss_count],
      delete_count: @cache[:delete_count],
      total_duration_ms: 0, error_count: 0
    }
  end

  if @jobs[:enqueue_count] > 0 || @jobs[:complete_count] > 0
    metrics << {
      type: "queue", tech: @jobs[:tech],
      interval_ms: NurseAndrea.config.hook_interval_ms,
      enqueue_count: @jobs[:enqueue_count],
      complete_count: @jobs[:complete_count],
      fail_count: @jobs[:fail_count],
      total_duration_ms: @jobs[:total_duration_ms].round(2),
      queue_names: @jobs[:queue_names].to_a,
      retry_count: 0, error_count: 0
    }
  end

  reset!
  metrics
end