module Mmtrix::Agent::Datastores::MetricHelper

Constants

ALL
ALL_OTHER
ALL_WEB
DEFAULT_PRODUCT_NAME
OTHER
OTHER_ROLLUP_METRIC
ROLLUP_METRIC
WEB_ROLLUP_METRIC

Public Class Methods

all_suffix() click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 39
def self.all_suffix
  if Mmtrix::Agent::Transaction.recording_web_transaction?
    ALL_WEB
  else
    ALL_OTHER
  end
end
metrics_for(product, operation, collection = nil, generic_product = nil) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 47
def self.metrics_for(product, operation, collection = nil, generic_product = nil)
  if overrides = overridden_operation_and_collection
    if should_override?(overrides, product, generic_product)
      operation  = overrides[0] || operation
      collection = overrides[1] || collection
    end
  end

  suffix = all_suffix

  # Order of these metrics matters--the first metric in the list will
  # be treated as the scoped metric in a bunch of different cases.
  metrics = [
    operation_metric_for(product, operation),
    product_suffixed_rollup(product, suffix),
    product_rollup(product),
    suffixed_rollup(suffix),
    ROLLUP_METRIC
  ]

  metrics.unshift statement_metric_for(product, collection, operation) if collection

  metrics
end
metrics_from_sql(product, sql) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 72
def self.metrics_from_sql(product, sql)
  operation = Mmtrix::Agent::Database.parse_operation_from_query(sql) || OTHER
  metrics_for(product, operation)
end
operation_metric_for(product, operation) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 23
def self.operation_metric_for(product, operation)
  "Datastore/operation/#{product}/#{operation}"
end
overridden_operation_and_collection() click to toggle source

Allow Transaction#with_database_metric_name to override our collection and operation

# File lib/mmtrix/agent/datastores/metric_helper.rb, line 79
def self.overridden_operation_and_collection #THREAD_LOCAL_ACCESS
  state = Mmtrix::Agent::TransactionState.tl_get
  txn   = state.current_transaction
  txn ? txn.instrumentation_state[:datastore_override] : nil
end
product_rollup(product) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 31
def self.product_rollup(product)
  "Datastore/#{product}/all"
end
product_suffixed_rollup(product, suffix) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 27
def self.product_suffixed_rollup(product, suffix)
  "Datastore/#{product}/#{suffix}"
end
should_override?(overrides, product, generic_product) click to toggle source

If the override declared a product affiliation, abide by that ActiveRecord has database-specific product names, so we recognize it by the generic_product it passes.

# File lib/mmtrix/agent/datastores/metric_helper.rb, line 88
def self.should_override?(overrides, product, generic_product)
  override_product = overrides[2]

  override_product.nil? ||
    override_product == product ||
    override_product == generic_product
end
statement_metric_for(product, collection, operation) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 19
def self.statement_metric_for(product, collection, operation)
  "Datastore/statement/#{product}/#{collection}/#{operation}"
end
suffixed_rollup(suffix) click to toggle source
# File lib/mmtrix/agent/datastores/metric_helper.rb, line 35
def self.suffixed_rollup(suffix)
  "Datastore/#{suffix}"
end