Class: Instana::Activator

Inherits:

Object

• Object
• Instana::Activator

Defined in:

lib/instana/activator.rb

Direct Known Subclasses

Instana::Activators::ActionCable, Instana::Activators::ActionControllerAPI, Instana::Activators::ActionControllerBase, Instana::Activators::ActionMailer, Instana::Activators::ActionView, Instana::Activators::ActiveJob, Instana::Activators::ActiveRecord, Instana::Activators::AwsDynamoDB, Instana::Activators::AwsS3, Instana::Activators::AwsSdkLambda, Instana::Activators::AwsSdkSns, Instana::Activators::AwsSdkSqs, Instana::Activators::Bunny, Instana::Activators::Cuba, Instana::Activators::Dalli, Instana::Activators::Excon, Instana::Activators::Graphql, Instana::Activators::GrpcClient, Instana::Activators::GrpcServer, Instana::Activators::Mongo, Instana::Activators::NetHTTP, Instana::Activators::Rack, Instana::Activators::Rails, Instana::Activators::Redis, Instana::Activators::ResqueClient, Instana::Activators::ResqueWorker, Instana::Activators::RestClient, Instana::Activators::Roda, Instana::Activators::Sequel, Instana::Activators::Shoryuken, Instana::Activators::SidekiqClient, Instana::Activators::SidekiqWorker, Instana::Activators::Sinatra

Class Attribute Summary

• .activators ⇒ Object readonly

  Returns the value of attribute activators.

• .trace_point ⇒ Object readonly

  Returns the value of attribute trace_point.

Class Method Summary

• .call ⇒ Object
• .inherited(subclass) ⇒ Object
• .start ⇒ Object

Instance Method Summary

• #call ⇒ Object

Class Attribute Details

.activators ⇒ Object (readonly)

Returns the value of attribute activators.

# File 'lib/instana/activator.rb', line 7

def activators
  @activators
end

.trace_point ⇒ Object (readonly)

Returns the value of attribute trace_point.

# File 'lib/instana/activator.rb', line 7

def trace_point
  @trace_point
end

Class Method Details

.call ⇒ Object

# File 'lib/instana/activator.rb', line 20

def call
  @activators ||= []
  activated, @activators = @activators.partition(&:call)
  activated
end

.inherited(subclass) ⇒ Object

# File 'lib/instana/activator.rb', line 26

def inherited(subclass)
  super(subclass)

  @activators ||= []
  @activators << subclass.new
end

.start ⇒ Object

# File 'lib/instana/activator.rb', line 9

def start
  # :nocov:
  @trace_point = TracePoint.new(:end) do
    activated = ::Instana::Activator.call
    ::Instana.logger.debug { "Activated #{activated.join(', ')}" } unless activated.empty?
  end

  @trace_point.enable if enabled?
  # :nocov:
end

Instance Method Details

#call ⇒ Object

# File 'lib/instana/activator.rb', line 40

def call
  instrument if can_instrument?
end