1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
require 'multi_json'
require 'socket'
class FakeWireServer
def initialize(port, protocol_table)
@port, @protocol_table = port, protocol_table
@delays = {}
end
def run
@server = TCPServer.open(@port)
loop { handle_connections }
end
def delay_response(message, delay)
@delays[message] = delay
end
private
def handle_connections
Thread.start(@server.accept) { |socket| open_session_on socket }
end
def open_session_on(socket)
begin
SocketSession.new(socket, @protocol_table, @delays).start
rescue Exception => e
raise e
ensure
socket.close
end
end
class SocketSession
def initialize(socket, protocol, delays)
@socket = socket
@protocol = protocol
@delays = delays
end
def start
while message = @socket.gets
handle(message)
end
end
private
def handle(data)
if protocol_entry = response_to(data.strip)
sleep delay(data)
send_response(protocol_entry['response'])
else
serialized_exception = { :message => "Not understood: #{data}", :backtrace => [] }
send_response(['fail', serialized_exception ].to_json)
end
rescue => e
send_response(['fail', { :message => e.message, :backtrace => e.backtrace, :exception => e.class } ].to_json)
end
def response_to(data)
@protocol.detect do |entry|
MultiJson.load(entry['request']) == MultiJson.load(data)
end
end
def send_response(response)
@socket.puts response + "\n"
end
def delay(data)
message = MultiJson.load(data.strip)[0]
@delays[message.to_sym] || 0
end
end
end
|
