module Telemetry::Snmp::Publisher

Public Class Methods

channel() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 94
def channel
  if !@channel_thread.nil? && !@channel_thread.value.nil? && @channel_thread.value.open?
    return @channel_thread.value
  end

  @channel_thread = Concurrent::ThreadLocalVar.new(nil) if @channel_thread.nil?
  @channel_thread.value = session.create_channel
  @channel_thread.value
end
exchange_name() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 73
def exchange_name
  ENV['telemetry.snmp.amqp.exchange_name'] || opts[:amqp][:exchange_name] || 'telemetry.snmp'
end
line_exchange() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 104
def line_exchange
  @exchange ||= channel.topic(
    exchange_name,
    durable: true,
    auto_delete: false,
    internal: false,
    passive: false
  )
rescue Bunny::PreconditionFailed
  @exchange ||= channel.topic(exchange_name, passive: true)
end
nodes() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 63
def nodes
  if ENV.key?('telemetry.snmp.amqp.nodes')
    ENV['telemetry.snmp.amqp.nodes'].split(',')
  elsif opts[:amqp].key?(:nodes)
    opts[:amqp][:nodes]
  else
    ['localhost']
  end
end
opts() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 19
def opts
  @opts ||= { amqp: {} }
end
password() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 33
def password
  ENV['telemetry.snmp.amqp.password'] || opts[:amqp][:password] || 'guest'
end
port() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 41
def port
  if ENV.key? 'telemetry.snmp.amqp.port'
    ENV['telemetry.snmp.amqp.port'].to_i
  elsif opts[:amqp].key? :port
    opts[:amqp][:port]
  elsif use_ssl?
    5671
  else
    5672
  end
end
publish_opts() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 116
def publish_opts
  {
    routing_key: 'snmp',
    persistent: true,
    mandatory: false,
    timstamp: Time.now.to_i,
    type: 'metric',
    content_type: 'application/json',
    content_encoding: 'identity'
  }
end
push_lines(lines) click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 90
def push_lines(lines)
  line_exchange.publish(lines.join("\n"), **publish_opts, routing_key: 'snmp')
end
session() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 77
def session
  @session ||= Telemetry::AMQP::Base.new(
    auto_start: true,
    vhost: vhost,
    application: 'Telemetry::Snmp',
    app_version: Telemetry::Snmp::VERSION,
    username: username,
    password: password,
    port: port,
    nodes: nodes
  )
end
start!(**opts) click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 7
def start!(**opts)
  @opts = opts
  @opts[:amqp] = {} if opts[:amqp].nil?

  @session = nil
  @channel = nil
  @exchange = nil
  session
  channel
  true
end
use_ssl?() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 53
def use_ssl?
  if ENV.key? 'telemetry.snmp.amqp.use_ssl'
    %w[1 true].include? ENV['telemetry.snmp.amqp.use_ssl']
  elsif opts[:amqp].key?(:use_ssl)
    opts[:amqp][:use_ssl]
  else
    false
  end
end
username() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 23
def username
  if ENV.key? 'telemetry.snmp.amqp.username'
    ENV['telemetry.snmp.amqp.username']
  elsif opts[:amqp].key? :username
    opts[:amqp][:username]
  else
    'guest'
  end
end
vhost() click to toggle source
# File lib/telemetry/snmp/publisher.rb, line 37
def vhost
  ENV['telemetry.snmp.amqp.vhost'] || opts[:amqp][:vhost] || 'telemetry'
end