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Contents
require 'dependency_detection'
# This installs some code to manually start the agent when a delayed
# job worker starts. It's not really instrumentation. It's more like
# a hook from DJ to the Ruby Agent so it gets loaded at the time the
# Ruby Agent initializes, which must be before the DJ worker
# initializes. Loaded from control.rb
module NewRelic
module DelayedJobInjection
extend self
attr_accessor :worker_name
end
end
DependencyDetection.defer do
@name = :delayed_job_injection
depends_on do
defined?(::Delayed) && defined?(::Delayed::Worker) && !NewRelic::Control.instance['disable_dj']
end
executes do
if NewRelic::Agent.respond_to?(:logger)
NewRelic::Agent.logger.debug 'Installing DelayedJob instrumentation hooks'
end
end
executes do
Delayed::Worker.class_eval do
def initialize_with_new_relic(*args)
initialize_without_new_relic(*args)
worker_name = case
when self.respond_to?(:name) then self.name
when self.class.respond_to?(:default_name) then self.class.default_name
end
dispatcher_instance_id = worker_name || "host:#{Socket.gethostname} pid:#{Process.pid}" rescue "pid:#{Process.pid}"
say "New Relic Ruby Agent Monitoring DJ worker #{dispatcher_instance_id}"
NewRelic::DelayedJobInjection.worker_name = worker_name
NewRelic::Control.instance.init_plugin :dispatcher => :delayed_job, :dispatcher_instance_id => dispatcher_instance_id
end
alias initialize_without_new_relic initialize
alias initialize initialize_with_new_relic
end
end
end
# If Rails is defined, this gets called in an after_initialize hook
# see NewRelic::Control::Frameworks::Rails#init_config
unless defined?(Rails)
DependencyDetection.detect!
end
Version data entries
32 entries across 32 versions & 4 rubygems