Class: NewRelic::Rack::AgentMiddleware

Inherits:
Object
  • Object
show all
Includes:
Agent::Instrumentation::MiddlewareTracing
Defined in:
lib/new_relic/rack/agent_middleware.rb

Direct Known Subclasses

AgentHooks, BrowserMonitoring

Constant Summary

Constants included from Agent::Instrumentation::MiddlewareTracing

Agent::Instrumentation::MiddlewareTracing::CONTENT_LENGTH, Agent::Instrumentation::MiddlewareTracing::CONTENT_TYPE, Agent::Instrumentation::MiddlewareTracing::TXN_STARTED_KEY

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Agent::Instrumentation::MiddlewareTracing

#_nr_has_middleware_tracing, #build_transaction_options, #call, #capture_response_attributes, #capture_response_content_length, #events, #merge_first_middleware_options, #note_transaction_started

Constructor Details

#initialize(app, options = {}) ⇒ AgentMiddleware

Returns a new instance of AgentMiddleware.



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# File 'lib/new_relic/rack/agent_middleware.rb', line 16

def initialize(app, options = {})
  @app = app
  @category = :middleware
  @target = self
  @transaction_options = {
    :transaction_name => build_transaction_name
  }
end

Instance Attribute Details

#category ⇒ Object (readonly) 



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# File 'lib/new_relic/rack/agent_middleware.rb', line 14

def category
  @category
end

#target ⇒ Object (readonly) 



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# File 'lib/new_relic/rack/agent_middleware.rb', line 14

def target
  @target
end

#transaction_options ⇒ Object (readonly) 



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# File 'lib/new_relic/rack/agent_middleware.rb', line 14

def transaction_options
  @transaction_options
end

Instance Method Details

#build_transaction_name ⇒ Object 



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# File 'lib/new_relic/rack/agent_middleware.rb', line 25

def build_transaction_name
  prefix = ::NewRelic::Agent::Instrumentation::ControllerInstrumentation::TransactionNamer.prefix_for_category(nil, @category)
  "#{prefix}#{self.class.name}/call"
end

#capture_http_response_code(state, result) ⇒ Object

If middleware tracing is disabled, we’ll still inject our agent-specific middlewares, and still trace those, but we don’t want to capture HTTP response codes, since middleware that’s outside of ours might change the response code before it goes back to the client.



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# File 'lib/new_relic/rack/agent_middleware.rb', line 34

def capture_http_response_code(state, result)
  return if NewRelic::Agent.config[:disable_middleware_instrumentation]

  super
end

#capture_response_content_type(state, result) ⇒ Object 



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# File 'lib/new_relic/rack/agent_middleware.rb', line 40

def capture_response_content_type(state, result)
  return if NewRelic::Agent.config[:disable_middleware_instrumentation]

  super
end