Class: ISPMonitor::Checks::PingCheck

Inherits:
BaseCheck
  • Object
show all
Defined in:
lib/isp_monitor/checks/ping_check.rb

Instance Attribute Summary collapse

Attributes inherited from BaseCheck

#config, #interval, #name

Instance Method Summary collapse

Methods inherited from BaseCheck

#run

Constructor Details

#initialize(config) ⇒ PingCheck

Returns a new instance of PingCheck.

[View source]

5
6
7
8
9
 
# File 'lib/isp_monitor/checks/ping_check.rb', line 5

def initialize(config)
  super(config)
  @target = config.fetch(:target)
  @count = config.fetch(:count, 10)
end

Instance Attribute Details

#count ⇒ Object (readonly)

Returns the value of attribute count.


3
4
5
 
# File 'lib/isp_monitor/checks/ping_check.rb', line 3

def count
  @count
end

#target ⇒ Object (readonly)

Returns the value of attribute target.


2
3
4
 
# File 'lib/isp_monitor/checks/ping_check.rb', line 2

def target
  @target
end

Instance Method Details

#check ⇒ Object

[View source]

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
 
# File 'lib/isp_monitor/checks/ping_check.rb', line 11

def check
  icmp = Net::Ping::ICMP.new(target, nil, 1)

  response_times = []
  ping_fails = 0

  count.times.each do
    begin
      if icmp.ping
        response_times << icmp.duration
      else
        ping_fails += 1
      end
    rescue StandardError => e
      ISPMonitor::Logging.notify_error(e)
      ping_fails += 1
    end
  end

  avg_rtt = if response_times.present?
    (response_times.sum / response_times.count).round(4)
  end

  jitter = if response_times.count >= 2
    jitter_diffs = response_times.each_cons(2).map { |a,b| (a-b).abs }
    (jitter_diffs.sum / jitter_diffs.count).round(4)
  else
    0
  end

  packet_loss = (ping_fails.to_f / count.to_f * 100.0).round(2)

  log_event 'ping', {
    ping_target:      target,
    ping_avg_rtt:     avg_rtt,
    ping_avg_jitter:  jitter,
    ping_packet_loss: packet_loss,
    ping_attempts:    count,
    ping_fails:       ping_fails
  }
end