Class: Franz::Output::HTTP

Inherits:
Object
  • Object
show all
Defined in:
lib/franz/output/http.rb

Overview

HTTP output for Franz.

Instance Method Summary collapse

Constructor Details

#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



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# 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

Instance Method Details

#join ⇒ Object

Join the Output thread. Effectively only once.



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# File 'lib/franz/output/http.rb', line 95

def join
  return if @foreground
  @foreground = true
  @thread.join
end

#stop ⇒ Object

Stop the Output thread. Effectively only once.



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# File 'lib/franz/output/http.rb', line 103

def stop
  return if @foreground
  @foreground = true
  @thread.kill
  log.info event: 'output stopped'
end