[AWS] add modify_vpc_attribute

lib/fog/aws/requests/compute/modify_vpc_attribute.rb

@@ -0,0 +1,59 @@
+module Fog
+  module Compute
+    class AWS
+      class Real
+
+        require 'fog/aws/parsers/compute/basic'
+
+        # Modifies the specified attribute of the specified VPC.
+        #
+        # ==== Parameters
+        # * vpc_id<~String> - The ID of the VPC.
+        # * options<~Hash>:
+        #   * enableDnsSupport<~Boolean> - Indicates whether DNS resolution is supported for the VPC. If this attribute is true, the Amazon DNS
+        #     server resolves DNS hostnames for your instances to their corresponding IP addresses; otherwise, it does not.
+        #   * enableDnsHostnames<~Boolean> - Indicates whether the instances launched in the VPC get DNS hostnames. If this attribute is true, 
+        #     instances in the VPC get DNS hostnames; otherwise, they do not. You can only set enableDnsHostnames to true if you also set the 
+        #     EnableDnsSupport attribute to true.
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        #     * 'requestId'<~String> - Id of request
+        #     * 'return'<~Boolean> - success?
+        #
+        # {Amazon API Reference}[http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-ModifyVpcAttribute.html]
+        def modify_vpc_attribute(vpc_id, options = {})
+          request({
+            'Action'             => 'ModifyVpcAttribute',
+            'VpcId'              => vpc_id,
+            :idempotent          => true,
+            :parser              => Fog::Parsers::Compute::AWS::Basic.new
+          }.merge!(options))
+        end
+
+      end
+
+      class Mock
+
+        def modify_vpc_attribute(vpc_id, options = {})
+          response = Excon::Response.new
+          if options.size == 0
+            raise Fog::Compute::AWS::Error.new("InvalidParameterCombination => No attributes specified.")
+          elsif options.size > 1
+            raise Fog::Compute::AWS::Error.new("InvalidParameterCombination =>  InvalidParameterCombination => Fields for multiple attribute types specified: #{options.keys.join(', ')}")
+          elsif self.data[:vpcs].select{|x| x['vpcId'] == vpc_id}.size
+            response.status = 200
+            response.body = {
+              'requestId' => Fog::AWS::Mock.request_id,
+              'return'    => true
+            }
+            response
+          else
+            raise Fog::Compute::AWS::NotFound.new("The vpc '#{vpc_id}' does not exist.")
+          end
+        end
+      end
+    end
+  end
+end