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| #!/usr/bin/env ruby | ||
| # | ||
| # Copyright (C) 2014 Droonga Project | ||
| # | ||
| # This library is free software; you can redistribute it and/or | ||
| # modify it under the terms of the GNU Lesser General Public | ||
| # License version 2.1 as published by the Free Software Foundation. | ||
| # | ||
| # This library is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| # Lesser General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU Lesser General Public | ||
| # License along with this library; if not, write to the Free Software | ||
| # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
|
|
||
| require "droonga/engine" | ||
| require "droonga/event_loop" | ||
| require "droonga/fluent_message_receiver" | ||
| require "droonga/plugin_loader" | ||
|
|
||
| Droonga::PluginLoader.load_all | ||
|
|
||
| raw_loop = Coolio::Loop.default | ||
| loop = Droonga::EventLoop.new(raw_loop) | ||
|
|
||
| engine = Droonga::Engine.new(:name => "droonga") | ||
| engine.start | ||
|
|
||
| receiver = Droonga::FluentMessageReceiver.new(loop) do |tag, time, record| | ||
| prefix, type, *arguments = tag.split(/\./) | ||
| if type.nil? or type.empty? or type == "message" | ||
| message = record | ||
| else | ||
| message = { | ||
| "type" => type, | ||
| "arguments" => arguments, | ||
| "body" => record | ||
| } | ||
| end | ||
| reply_to = message["replyTo"] | ||
| if reply_to.is_a? String | ||
| message["replyTo"] = { | ||
| "type" => "#{message["type"]}.result", | ||
| "to" => reply_to | ||
| } | ||
| end | ||
| message | ||
|
|
||
| engine.process(message) | ||
| end | ||
| receiver.start | ||
|
|
||
| begin | ||
| raw_loop.run | ||
| rescue Interrupt | ||
| end | ||
|
|
||
| receiver.shutdown | ||
| engine.shutdown |
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| # Copyright (C) 2014 Droonga Project | ||
| # | ||
| # This library is free software; you can redistribute it and/or | ||
| # modify it under the terms of the GNU Lesser General Public | ||
| # License version 2.1 as published by the Free Software Foundation. | ||
| # | ||
| # This library is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| # Lesser General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU Lesser General Public | ||
| # License along with this library; if not, write to the Free Software | ||
| # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
|
|
||
| require "socket" | ||
| require "ipaddr" | ||
|
|
||
| require "msgpack" | ||
|
|
||
| require "droonga/loggable" | ||
| require "droonga/event_loop" | ||
|
|
||
| module Droonga | ||
| class FluentMessageReceiver | ||
| include Loggable | ||
|
|
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| def initialize(loop, options={}, &on_message) | ||
| @loop = loop | ||
| @host = options[:host] || "0.0.0.0" | ||
| @port = options[:port] || 24224 | ||
| @server = nil | ||
| @clients = [] | ||
| @on_message = on_message | ||
| end | ||
|
|
||
| def start | ||
| logger.trace("start: start") | ||
| start_heartbeat_receiver | ||
| start_server | ||
| logger.trace("start: done") | ||
| end | ||
|
|
||
| def shutdown | ||
| logger.trace("shutdown: start") | ||
| shutdown_server | ||
| shutdown_clients | ||
| shutdown_heartbeat_receiver | ||
| logger.trace("shutdown: done") | ||
| end | ||
|
|
||
| private | ||
| def start_heartbeat_receiver | ||
| logger.trace("start_heartbeat_receiver: start") | ||
| @heartbeat_receiver = HeartbeatReceiver.new(@loop, @host, @port) | ||
| @heartbeat_receiver.start | ||
| logger.trace("start_heartbeat_receiver: done") | ||
| end | ||
|
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||
| def shutdown_heartbeat_receiver | ||
| logger.trace("shutdown_heartbeat_receiver: start") | ||
| @heartbeat_receiver.shutdown | ||
| logger.trace("shutdown_heartbeat_receiver: done") | ||
| end | ||
|
|
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| def start_server | ||
| logger.trace("start_server: start") | ||
|
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| @clients = [] | ||
| @server = Coolio::TCPServer.new(@host, @port) do |connection| | ||
| client = Client.new(connection) do |tag, time, record| | ||
| @on_message.call(tag, time, record) | ||
| end | ||
| @clients << client | ||
| end | ||
| @loop.attach(@server) | ||
|
|
||
| logger.trace("start_server: done") | ||
| end | ||
|
|
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| def shutdown_server | ||
| @server.close | ||
| end | ||
|
|
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| def shutdown_clients | ||
| @clients.each do |client| | ||
| client.close | ||
| end | ||
| end | ||
|
|
||
| def log_tag | ||
| "fluent-message-receiver" | ||
| end | ||
|
|
||
| class HeartbeatReceiver | ||
| def initialize(loop, host, port) | ||
| @loop = loop | ||
| @host = host | ||
| @port = port | ||
| end | ||
|
|
||
| def start | ||
| @socket = UDPSocket.new(address_family) | ||
| @socket.bind(@host, @port) | ||
|
|
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| @watcher = Coolio::IOWatcher.new(@socket, "r") | ||
| on_readable = lambda do | ||
| receive_heartbeat | ||
| end | ||
| @watcher.on_readable do | ||
| on_readable.call | ||
| end | ||
| @loop.attach(@watcher) | ||
| end | ||
|
|
||
| def shutdown | ||
| @watcher.detach | ||
| @socket.close | ||
| end | ||
|
|
||
| private | ||
| def address_family | ||
| ip_address = IPAddr.new(IPSocket.getaddress(@host)) | ||
| ip_address.family | ||
| end | ||
|
|
||
| def receive_heartbeat | ||
| address = nil | ||
| begin | ||
| _, address = @socket.recvfrom(1024) | ||
| rescue SystamCallError | ||
| return | ||
| end | ||
|
|
||
| host = address[3] | ||
| port = address[1] | ||
| send_back_heartbeat(host, port) | ||
| end | ||
|
|
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| def send_back_heartbeat(host, port) | ||
| data = "\0" | ||
| flags = 0 | ||
| begin | ||
| @socket.send(data, flags, host, port) | ||
| rescue SystemCallError | ||
| end | ||
| end | ||
| end | ||
|
|
||
| class Client | ||
| include Loggable | ||
|
|
||
| def initialize(io, &on_message) | ||
| @io = io | ||
| @on_message = on_message | ||
| @unpacker = MessagePack::Unpacker.new | ||
| on_read = lambda do |data| | ||
| feed(data) | ||
| end | ||
| @io.on_read do |data| | ||
| on_read.call(data) | ||
| end | ||
| end | ||
|
|
||
| private | ||
| def feed(data) | ||
| @unpacker.feed_each(data) do |object| | ||
| tag = object[0] | ||
| case object[1] | ||
| when String # PackedForward message | ||
| entries = MessagePack.unpack(object[1]) | ||
| when Array # Forward message | ||
| entries = object[1] | ||
| when Integer # Message message | ||
| entries = [[object[1], object[2]]] | ||
| else | ||
| logger.error("unknown message", :message => object) | ||
| next | ||
| end | ||
| entries.each do |time, record| | ||
| @on_message.call(tag, time || Time.now.to_i, record) | ||
| end | ||
| end | ||
| end | ||
|
|
||
| def log_tag | ||
| "fluent-message-receiver::client" | ||
| end | ||
| end | ||
| end | ||
| end |