Class: Elasticity::AwsSession

Inherits:
Object
  • Object
show all
Defined in:
lib/elasticity/aws_session.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ AwsSession

Supported values for options:

:region - AWS region (e.g. us-west-1)
:secure - true or false, default true.
:timeout - the timeout, in seconds, when making a request to EMR, default 60.



17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/elasticity/aws_session.rb', line 17

def initialize(options={})
  # There is a cryptic error if this isn't set
  if options.has_key?(:region) && options[:region] == nil
    raise MissingRegionError, 'A valid :region is required to connect to EMR'
  end
  options[:region] = 'us-east-1' unless options[:region]
  @region = options[:region]

  @host = "elasticmapreduce.#@region.amazonaws.com"

  options[:timeout] = 60 unless options[:timeout]
  @timeout = options[:timeout]
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



9
10
11
 
# File 'lib/elasticity/aws_session.rb', line 9

def host
  @host
end

#region ⇒ Object (readonly)

Returns the value of attribute region.



10
11
12
 
# File 'lib/elasticity/aws_session.rb', line 10

def region
  @region
end

#timeout ⇒ Object (readonly)

Returns the value of attribute timeout.



11
12
13
 
# File 'lib/elasticity/aws_session.rb', line 11

def timeout
  @timeout
end

Instance Method Details

#==(other) ⇒ Object 



48
49
50
51
52
 
# File 'lib/elasticity/aws_session.rb', line 48

def ==(other)
  return false unless other.is_a? AwsSession
  return false unless @host == other.host
  true
end

#submit(ruby_service_hash) ⇒ Object 



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/elasticity/aws_session.rb', line 31

def submit(ruby_service_hash)
  aws_request = AwsRequestV4.new(self, ruby_service_hash)
  begin
    RestClient::Request.execute(
      :method => :post,
      :url => aws_request.url,
      :payload => aws_request.payload,
      :headers => aws_request.headers,
      :timeout => @timeout
    )
  rescue RestClient::BadRequest => e
    type, message = AwsSession.parse_error_response(e.http_body)
    raise ThrottlingException, message if type == 'ThrottlingException'
    raise ArgumentError, message
  end
end