Class: StackifyRubyAPM::Serializers::Transactions Private

Inherits:
Serializer
  • Object
show all
Includes:
Log
Defined in:
lib/stackify_apm/serializers/transactions.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary

Constants included from Log

Log::PREFIX

Instance Method Summary collapse

Methods included from Log

#debug, #error, #fatal, #info, #log, #warn

Methods inherited from Serializer

#initialize

Constructor Details

This class inherits a constructor from StackifyRubyAPM::Serializers::Serializer

Instance Method Details

#build_json(config, transaction) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method will return a Hash object(Transaction). It will accept Config and Transaction instance.



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# File 'lib/stackify_apm/serializers/transactions.rb', line 13

def build_json(config, transaction)
  root_span_json = {
    id: -1,
    call: transaction.name,
    reqBegin: transaction.timestamp,
    reqEnd: transaction.duration,
    props: RootInfo.build(config, transaction),
    exceptions: transaction.exceptions,
    stacks: []
  }

  # serialize all the spans
  children_spans_json = []
  transaction.spans.each do |span|
    children_spans_json.push(build_span(span))
  end

  add_children_spans(root_span_json, children_spans_json)
  root_span_json
rescue StandardError => e
  debug "[Transactions::Serializer] build_json() exception: #{e.inspect}"
end

#build_protobuf(config, transaction) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method will build a Protobuf object. It will accept the Config and Transaction instance. Return a Stackify::Trace object.



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# File 'lib/stackify_apm/serializers/transactions.rb', line 39

def build_protobuf(config, transaction)
  root_span_hash = build_json(config, transaction)
  begin
    # create Trace object
    trace = StackifyProtoBuf::Trace.new
    # create TraceFrame object
    trace_frame = StackifyProtoBuf::TraceFrame.new
    trace_frame.call = root_span_hash[:call].to_s
    trace_frame.start_timestamp_millis = root_span_hash[:reqBegin]
    trace_frame.end_timestamp_millis = root_span_hash[:reqEnd]

    exception = StackifyProtoBuf::TraceException.new
    if root_span_hash[:exceptions].count > 0
      ex = root_span_hash[:exceptions]
      ex.each do |exc|
        exception.caught_by = exc[:CaughtBy].to_s
        exception.exception = exc[:Exception].to_s
        exception.message = exc[:Message].to_s
        exception.timestamp_millis = exc[:Timestamp].to_f
        exc[:Frames].each do |f|
          trace_ex_frame = StackifyProtoBuf::TraceExceptionFrame.new
          trace_ex_frame.method = f[:Method].to_s
          exception.frames.push(trace_ex_frame)
        end
        trace_frame.exceptions.push(exception)
      end
    end

    # create props
    root_frame_props = Google::Protobuf::Map.new(:string, :string)
    root_span_hash[:props].each { |key, value| root_frame_props[key.to_s] = value.to_s }
    trace_frame.properties = root_frame_props

    add_child_frame trace_frame, root_span_hash
    trace.frame = trace_frame
    return trace
  rescue StandardError => e
    debug "[Serializers::Transactions] build_protobuf() exception: #{e.inspect}"
  end
end