Method: Franz::Output::HTTP#initialize

Defined in:
lib/franz/output/http.rb

#initialize(opts = {}) ⇒ HTTP

Start a new output in the background. We’ll consume from the input queue and ship events via HTTP.

Parameters:

  • opts (Hash) (defaults to: {}) —

    options for the output

Options Hash (opts):

  • :input (Queue) — default: [] —

    “input” queue

  • :output (Queue) — default: [] —

    “output” configuration



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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
 
# File 'lib/franz/output/http.rb', line 21

def initialize opts={}
  opts = {
    logger: Logger.new(STDOUT),
    tags: [],
    input: [],
    output: {
      uri: 'http://user:pass@localhost:3000/v2/.theon',
      flush_size: 500,
      flush_interval: 10,
      ssl: {
        cert_file: nil,
        key_file: nil,
        ca_file: nil,
        verify_mode: nil
      }
    }
  }.deep_merge!(opts)

  @statz = opts[:statz] || Franz::Stats.new
  @statz.create :num_output, 0

  @logger = opts[:logger]

  @stop = false
  @foreground = opts[:foreground]

  uri  = opts[:output].delete(:uri) || opts[:output].delete(:server)
  @uri = URI(uri)
  @ssl = if @uri.scheme =~ /https/
    opts[:output].delete :ssl
  end
  open_uri

  @flush_size = opts[:output][:flush_size]
  @flush_interval = opts[:output][:flush_interval]
  @lock = Mutex.new
  @messages = []

  Thread.new do
    until @stop
      @lock.synchronize do
        flush_messages true
      end
      sleep @flush_interval
    end
  end

  @thread = Thread.new do
    until @stop
      event = opts[:input].shift

      unless opts[:tags].empty?
        event['tags'] ||= []
        event['tags']  += opts[:tags]
      end

      payload = JSON::generate event
      @lock.synchronize do
        enqueue payload
      end

      log.debug \
        event: 'publish',
        raw: event
    end
  end

  log.info event: 'output started'

  @thread.join if @foreground
end