module Mmtrix::Agent::DataMapperTracing
Constants
- DATA_MAPPER
Public Class Methods
add_tracer(clazz, method_name, operation_only = false)
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# File lib/mmtrix/agent/instrumentation/data_mapper.rb, line 99 def self.add_tracer(clazz, method_name, operation_only = false) clazz.class_eval do if method_defined?(method_name) || private_method_defined?(method_name) define_method("#{method_name}_with_mmtrix", Mmtrix::Agent::DataMapperTracing.method_body(clazz, method_name, operation_only)) alias_method "#{method_name}_without_mmtrix", method_name alias_method method_name, "#{method_name}_with_mmtrix" end end end
method_body(clazz, method_name, operation_only)
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# File lib/mmtrix/agent/instrumentation/data_mapper.rb, line 113 def self.method_body(clazz, method_name, operation_only) use_model_name = Mmtrix::Helper.instance_methods_include?(clazz, :model) metric_operation = method_name.to_s.gsub(/[!?]/, "") Proc.new do |*args, &blk| begin if operation_only # Used by direct SQL, like ::DataMapper::Adapters::DataObjectsAdapter#select name = nil elsif use_model_name # Used by ::DataMapper::Collection to get contained model name name = self.model.name elsif self.is_a?(Class) # Used by class-style access, like Model.first() name = self.name else # Used by instance-style access, like model.update(attr: "new") name = self.class.name end metrics = Mmtrix::Agent::Datastores::MetricHelper.metrics_for( DATA_MAPPER, metric_operation, name) Mmtrix::Agent::MethodTracer.trace_execution_scoped(metrics) do self.send("#{method_name}_without_mmtrix", *args, &blk) end end end end