# File lib/fluent/plugin/in_forward.rb, line 274 def initialize(io, linger_timeout, log, resolve_hostname, on_message) super(io) @peeraddr = nil if io.is_a?(TCPSocket) # for unix domain socket support in the future io.do_not_reverse_lookup = !resolve_hostname unless resolve_hostname.nil? @peeraddr = (io.peeraddr rescue PEERADDR_FAILED) opt = [1, linger_timeout].pack('I!I!') # { int l_onoff; int l_linger; } io.setsockopt(Socket::SOL_SOCKET, Socket::SO_LINGER, opt) end @chunk_counter = 0 @on_message = on_message @log = log @log.trace { begin remote_port, remote_addr = *Socket.unpack_sockaddr_in(@_io.getpeername) rescue => e remote_port = nil remote_addr = nil end "accepted fluent socket from '#{remote_addr}:#{remote_port}': object_id=#{self.object_id}" } end
# File lib/fluent/plugin/in_forward.rb, line 356 def on_close @log.trace { "closed socket" } end
# File lib/fluent/plugin/in_forward.rb, line 300 def on_connect end
# File lib/fluent/plugin/in_forward.rb, line 303 def on_read(data) first = data[0] if first == '{' || first == '[' m = method(:on_read_json) @serializer = :to_json.to_proc @y = Yajl::Parser.new @y.on_parse_complete = lambda { |obj| option = @on_message.call(obj, @chunk_counter, @peeraddr) respond option if option @chunk_counter = 0 } else m = method(:on_read_msgpack) @serializer = :to_msgpack.to_proc @u = Fluent::Engine.msgpack_factory.unpacker end (class << self; self; end).module_eval do define_method(:on_read, m) end m.call(data) end
# File lib/fluent/plugin/in_forward.rb, line 326 def on_read_json(data) @chunk_counter += data.bytesize @y << data rescue => e @log.error "forward error", error: e, error_class: e.class @log.error_backtrace close end
# File lib/fluent/plugin/in_forward.rb, line 335 def on_read_msgpack(data) @chunk_counter += data.bytesize @u.feed_each(data) do |obj| option = @on_message.call(obj, @chunk_counter, @peeraddr) respond option if option @chunk_counter = 0 end rescue => e @log.error "forward error", error: e, error_class: e.class @log.error_backtrace close end
# File lib/fluent/plugin/in_forward.rb, line 348 def respond(option) if option && option['chunk'] res = { 'ack' => option['chunk'] } write @serializer.call(res) @log.trace { "sent response to fluent socket" } end end