Class: Livestatus::UnixHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/livestatus/handler/unix.rb

Instance Method Summary collapse

Constructor Details

#initialize(connection, config) ⇒ UnixHandler

Returns a new instance of UnixHandler.



8
9
10
11
 
# File 'lib/livestatus/handler/unix.rb', line 8

def initialize(connection, config)
  @connection = connection
  @socket = UNIXSocket.open(config[:uri].sub(/^unix:\/\//, ''))
end

Instance Method Details

#command(cmd, time = nil) ⇒ Object 



54
55
56
57
58
 
# File 'lib/livestatus/handler/unix.rb', line 54

def command(cmd, time = nil)
  time = Time.now.to_i unless time
  @socket.write("COMMAND [#{time}] #{cmd}\n\n")
  nil
end

#get(model, options = {}) ⇒ Object 



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
 
# File 'lib/livestatus/handler/unix.rb', line 13

def get(model, options = {})
  options.merge!({
    :response_header => "fixed16",
    :output_format => "json",
    :keep_alive => "on",
  })

  headers = options.map do |k,v|
    if v.is_a?(Array)
      v.map do |e|
        "#{k.to_s.camelize}: #{e}"
      end
    else
      "#{k.to_s.camelize}: #{v}"
    end
  end.flatten.join("\n")

  headers += "\n" unless headers.empty?

  @socket.write("GET #{model.table_name}\n#{headers}\n")

  res = @socket.read(16)
  status, length = res[0..2].to_i, res[4..14].chomp.to_i

  unless status == 200
    raise HandlerException, "livestatus query failed with status #{status}"
  end

  data = Yajl::Parser.new.parse(@socket.read(length))

  if options.include?(:columns)
    columns = options[:columns].split(" ")
  else
    columns = data.delete_at(0)
  end

  column_zip(columns, data).map do |d|
    model.new(d, @connection)
  end
end