Module: OpenTelemetry::Instrumentation::Redis::Patches::Client

Defined in:
lib/opentelemetry/instrumentation/redis/patches/client.rb

Overview

Module to prepend to Redis::Client for instrumentation

Instance Method Summary collapse

Instance Method Details

#process(commands) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/MethodLength, Metrics/PerceivedComplexity, Metrics/CyclomaticComplexity



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# File 'lib/opentelemetry/instrumentation/redis/patches/client.rb', line 16

def process(commands) # rubocop:disable Metrics/AbcSize, Metrics/MethodLength, Metrics/PerceivedComplexity, Metrics/CyclomaticComplexity
  return super unless config[:trace_root_spans] || OpenTelemetry::Trace.current_span.context.valid?

  host = options[:host]
  port = options[:port]

  attributes = {
    'db.system' => 'redis',
    'net.peer.name' => host,
    'net.peer.port' => port
  }

  attributes['db.redis.database_index'] = options[:db] unless options[:db].zero?
  attributes['peer.service'] = config[:peer_service] if config[:peer_service]
  attributes.merge!(OpenTelemetry::Instrumentation::Redis.attributes)

  unless config[:db_statement] == :omit
    parsed_commands = parse_commands(commands)
    parsed_commands = OpenTelemetry::Common::Utilities.truncate(parsed_commands, MAX_STATEMENT_LENGTH)
    parsed_commands = OpenTelemetry::Common::Utilities.utf8_encode(parsed_commands, binary: true)
    attributes['db.statement'] = parsed_commands
  end

  span_name = if commands.length == 1
                commands[0][0].to_s.upcase
              else
                'PIPELINED'
              end

  tracer.in_span(span_name, attributes: attributes, kind: :client) do |s|
    super(commands).tap do |reply|
      if reply.is_a?(::Redis::CommandError)
        s.record_exception(reply)
        s.status = Trace::Status.error(reply.message)
      end
    end
  end
end