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module Fog
module AWS
class EMR < Fog::Service
extend Fog::AWS::CredentialFetcher::ServiceMethods
class IdentifierTaken < Fog::Errors::Error; end
requires :aws_access_key_id, :aws_secret_access_key
recognizes :region, :host, :path, :port, :scheme, :persistent, :use_iam_profile, :aws_session_token, :aws_credentials_expire_at, :instrumentor, :instrumentor_name
request_path 'fog/aws/requests/emr'
request :add_instance_groups
request :add_job_flow_steps
request :describe_job_flows
request :modify_instance_groups
request :run_job_flow
request :set_termination_protection
request :terminate_job_flows
# model_path 'fog/aws/models/rds'
# model :server
# collection :servers
# model :snapshot
# collection :snapshots
# model :parameter_group
# collection :parameter_groups
#
# model :parameter
# collection :parameters
#
# model :security_group
# collection :security_groups
class Mock
def initialize(options={})
Fog::Mock.not_implemented
end
end
class Real
include Fog::AWS::CredentialFetcher::ConnectionMethods
# Initialize connection to EMR
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# emr = EMR.new(
# :aws_access_key_id => your_aws_access_key_id,
# :aws_secret_access_key => your_aws_secret_access_key
# )
#
# ==== Parameters
# * options<~Hash> - config arguments for connection. Defaults to {}.
# * region<~String> - optional region to use. For instance, in 'eu-west-1', 'us-east-1' and etc.
#
# ==== Returns
# * EMR object with connection to AWS.
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
@connection_options = options[:connection_options] || {}
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.emr'
options[:region] ||= 'us-east-1'
@host = options[:host] || "elasticmapreduce.#{options[:region]}.amazonaws.com"
@path = options[:path] || '/'
@persistent = options[:persistent] || false
@port = options[:port] || 443
@scheme = options[:scheme] || 'https'
@connection = Fog::XML::Connection.new("#{@scheme}://#{@host}:#{@port}#{@path}", @persistent, @connection_options)
@region = options[:region]
setup_credentials(options)
end
def reload
@connection.reset
end
private
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
@aws_secret_access_key = options[:aws_secret_access_key]
@aws_session_token = options[:aws_session_token]
@aws_credentials_expire_at = options[:aws_credentials_expire_at]
@signer = Fog::AWS::SignatureV4.new( @aws_access_key_id, @aws_secret_access_key, @region, 'elasticmapreduce')
end
def request(params)
refresh_credentials_if_expired
idempotent = params.delete(:idempotent)
parser = params.delete(:parser)
body, headers = Fog::AWS.signed_params_v4(
params,
{ 'Content-Type' => 'application/x-www-form-urlencoded' },
{
:signer => @signer,
:aws_session_token => @aws_session_token,
:method => 'POST',
:host => @host,
:path => @path,
:port => @port,
:version => '2009-03-31' #'2010-07-28'
}
)
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(body, headers, idempotent, parser)
end
else
_request(body, headers, idempotent, parser)
end
end
def _request(body, headers, idempotent, parser)
@connection.request({
:body => body,
:expects => 200,
:headers => headers,
:idempotent => idempotent,
:method => 'POST',
:parser => parser
})
end
end
end
end
end
|
