Class: GraphQL::Tracing::MonitorTrace::Monitor

Inherits:
Object
  • Object
show all
Defined in:
lib/graphql/tracing/monitor_trace.rb

Defined Under Namespace

Modules: GraphQLPrefixNames, GraphQLSuffixNames Classes: Event

Instance Method Summary collapse

Constructor Details

#initialize(trace:, set_transaction_name:, **_rest) ⇒ Monitor

Returns a new instance of Monitor.



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# File 'lib/graphql/tracing/monitor_trace.rb', line 11

def initialize(trace:, set_transaction_name:, **_rest)
  @trace = trace
  @set_transaction_name = set_transaction_name
  @platform_field_key_cache = Hash.new { |h, k| h[k] = platform_field_key(k) }.compare_by_identity
  @platform_authorized_key_cache = Hash.new { |h, k| h[k] = platform_authorized_key(k) }.compare_by_identity
  @platform_resolve_type_key_cache = Hash.new { |h, k| h[k] = platform_resolve_type_key(k) }.compare_by_identity
  @platform_source_class_key_cache = Hash.new { |h, source_cls| h[source_cls] = platform_source_class_key(source_cls) }.compare_by_identity
end

Instance Method Details

#fallback_transaction_name(context) ⇒ Object 



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# File 'lib/graphql/tracing/monitor_trace.rb', line 44

def fallback_transaction_name(context)
  context[:tracing_fallback_transaction_name]
end

#instrument(keyword, object, &block) ⇒ Object 



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# File 'lib/graphql/tracing/monitor_trace.rb', line 20

def instrument(keyword, object, &block)
  raise "Implement #{self.class}#instrument to measure the block"
end

#name_for(keyword, object) ⇒ Object 



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# File 'lib/graphql/tracing/monitor_trace.rb', line 48

def name_for(keyword, object)
  case keyword
  when :execute_field
    @platform_field_key_cache[object]
  when :authorized
    @platform_authorized_key_cache[object]
  when :resolve_type
    @platform_resolve_type_key_cache[object]
  when :dataloader_source
    @platform_source_class_key_cache[object.class]
  when :parse then self.class::PARSE_NAME
  when :lex then self.class::LEX_NAME
  when :execute then self.class::EXECUTE_NAME
  when :analyze then self.class::ANALYZE_NAME
  when :validate then self.class::VALIDATE_NAME
  else
    raise "No name for #{keyword.inspect}"
  end
end

#start_event(keyword, object) ⇒ Object 



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# File 'lib/graphql/tracing/monitor_trace.rb', line 24

def start_event(keyword, object)
  ev = self.class::Event.new(self, keyword, object)
  ev.start
  ev
end

#transaction_name(query) ⇒ Object

Get the transaction name based on the operation type and name if possible, or fall back to a user provided one. Useful for anonymous queries.



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# File 'lib/graphql/tracing/monitor_trace.rb', line 32

def transaction_name(query)
  selected_op = query.selected_operation
  txn_name = if selected_op
    op_type = selected_op.operation_type
    op_name = selected_op.name || fallback_transaction_name(query.context) || "anonymous"
    "#{op_type}.#{op_name}"
  else
    "query.anonymous"
  end
  "GraphQL/#{txn_name}"
end