Module: Schlep

Extended by:
Schlep
Included in:
Schlep
Defined in:
lib/schlep.rb,
lib/schlep/version.rb

Constant Summary collapse

VERSION = 
"0.2.2"

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#app ⇒ Object 



12
13
14
 
# File 'lib/schlep.rb', line 12

def app
  @app ||= ""
end

#hostname ⇒ Object 



44
45
46
47
48
49
50
 
# File 'lib/schlep.rb', line 44

def hostname
  @hostname ||= `hostname`

  @hostname.gsub! /\s/, "" if @hostname =~ /\s/

  @hostname
end

#redis_url ⇒ Object 



68
69
70
 
# File 'lib/schlep.rb', line 68

def redis_url
  @redis_url ||= ENV["REDIS_URL"] or ENV["REDISTOGO_URL"]
end

Instance Method Details

#configure {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:

  • _self (Schlep) —

    the object that the method was called on



16
17
18
 
# File 'lib/schlep.rb', line 16

def configure
  yield self
end

#envelope(type, message) ⇒ Object 



20
21
22
23
24
25
26
27
28
 
# File 'lib/schlep.rb', line 20

def envelope(type, message)
  {
    :timestamp => timestamp,
    :app =>       app,
    :host =>      hostname,
    :type =>      type,
    :message =>   serialize_message(message)
  }.to_json
end

#event(type, message) ⇒ Object 



30
31
32
 
# File 'lib/schlep.rb', line 30

def event(type, message)
  redis.rpush 'schlep', envelope(type, message)
end

#events(type, messages) ⇒ Object 



34
35
36
37
38
39
40
41
42
 
# File 'lib/schlep.rb', line 34

def events(type, messages)
  messages.map! { | message| envelope(type, message) }

  redis.pipelined do
    while messages.any?
      redis.rpush 'schlep', messages.pop
    end
  end
end

#redis ⇒ Object 



52
53
54
 
# File 'lib/schlep.rb', line 52

def redis
  @redis ||= Redis.new redis_options
end

#redis_options ⇒ Object 



56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/schlep.rb', line 56

def redis_options
  return {} unless redis_url

  parsed_url = URI::parse(redis_url)

  {
    :host     => parsed_url.host,
    :port     => parsed_url.port,
    :password => parsed_url.password
  }
end

#reset ⇒ Object 



72
73
74
75
76
 
# File 'lib/schlep.rb', line 72

def reset
  %w[app hostname redis redis_url].each do |ivar|
    instance_variable_set "@#{ivar}", nil
  end
end

#serialize_message(message) ⇒ Object 



78
79
80
81
 
# File 'lib/schlep.rb', line 78

def serialize_message(message)
  return message if [String, Fixnum, Float].index message.class
  message.to_json
end

#timestamp ⇒ Object 



83
84
85
 
# File 'lib/schlep.rb', line 83

def timestamp
  Time.now.to_f
end