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|
# frozen_string_literal: true
require 'opentracing'
require 'grpc'
module Gitlab
module Tracing
class GRPCInterceptor < GRPC::ClientInterceptor
include Common
include Singleton
def initialize
end
def request_response(request:, call:, method:, metadata:)
wrap_with_tracing(method, 'unary', metadata) do
yield
end
end
def client_streamer(requests:, call:, method:, metadata:)
wrap_with_tracing(method, 'client_stream', metadata) do
yield
end
end
def server_streamer(request:, call:, method:, metadata:)
wrap_with_tracing(method, 'server_stream', metadata) do
yield
end
end
def bidi_streamer(requests:, call:, method:, metadata:)
wrap_with_tracing(method, 'bidi_stream', metadata) do
yield
end
end
private
def wrap_with_tracing(method, grpc_type, metadata)
start_active_span(
operation_name: method,
tags: {
'component': 'grpc',
'span.kind': 'client',
'grpc.method': method,
'grpc.type': grpc_type
}) do |span|
OpenTracing.inject(span.context, OpenTracing::FORMAT_TEXT_MAP, metadata)
yield
end
end
end
end
end
|
