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module Fog
module AWS
class DynamoDB < Fog::Service
extend Fog::AWS::CredentialFetcher::ServiceMethods
requires :aws_access_key_id, :aws_secret_access_key
recognizes :aws_session_token, :host, :path, :port, :scheme, :persistent, :region, :use_iam_profile, :aws_credentials_expire_at, :instrumentor, :instrumentor_name
request_path 'fog/aws/requests/dynamodb'
request :batch_get_item
request :batch_write_item
request :create_table
request :delete_item
request :delete_table
request :describe_table
request :get_item
request :list_tables
request :put_item
request :query
request :scan
request :update_item
request :update_table
class Mock
def self.data
@data ||= Hash.new do |hash, key|
hash[key] = {
:domains => {}
}
end
end
def self.reset
@data = nil
end
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
setup_credentials(options)
end
def data
self.class.data[@aws_access_key_id]
end
def reset_data
self.class.data.delete(@aws_access_key_id)
end
def setup_credentials(options)
@aws_access_key_id = options[:aws_access_key_id]
end
end
class Real
include Fog::AWS::CredentialFetcher::ConnectionMethods
# Initialize connection to DynamoDB
#
# ==== Notes
# options parameter must include values for :aws_access_key_id and
# :aws_secret_access_key in order to create a connection
#
# ==== Examples
# ddb = DynamoDB.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 {}.
#
# ==== Returns
# * DynamoDB object with connection to aws
def initialize(options={})
@use_iam_profile = options[:use_iam_profile]
@region = options[:region] || 'us-east-1'
setup_credentials(options)
@connection_options = options[:connection_options] || {}
@instrumentor = options[:instrumentor]
@instrumentor_name = options[:instrumentor_name] || 'fog.aws.dynamodb'
@host = options[:host] || "dynamodb.#{@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)
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, 'dynamodb')
end
def reload
@connection.reset
end
def request(params)
refresh_credentials_if_expired
# defaults for all dynamodb requests
params.merge!({
:expects => 200,
:method => :post,
:path => '/'
})
# setup headers and sign with signature v4
date = Fog::Time.now
params[:headers] = {
'Content-Type' => 'application/x-amz-json-1.0',
'Date' => date.to_iso8601_basic,
'Host' => @host,
}.merge!(params[:headers])
params[:headers]['x-amz-security-token'] = @aws_session_token if @aws_session_token
params[:headers]['Authorization'] = @signer.sign(params, date)
if @instrumentor
@instrumentor.instrument("#{@instrumentor_name}.request", params) do
_request(params)
end
else
_request(params)
end
end
def _request(params)
response = @connection.request(params)
unless response.body.empty?
response.body = Fog::JSON.decode(response.body)
end
response
end
end
end
end
end
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