[aws|cdn] first pass at post_invalidation

lib/fog/aws/cdn.rb

@@ -8,6 +8,7 @@ module Fog
 
       request_path 'fog/aws/requests/cdn'
       request 'get_distribution_list'
+      request 'post_invalidation'
 
       class Mock
 

lib/fog/aws/parsers/cdn/post_invalidation.rb

@@ -0,0 +1,28 @@
+module Fog
+  module Parsers
+    module AWS
+      module CDN
+
+        class PostInvalidation < Fog::Parsers::Base
+
+          def reset
+            @response = { 'InvalidationBatch' => { 'Path' => [] } }
+          end
+
+          def end_element(name)
+            case name
+            when 'CallerReference'
+              @response['InvalidationBatch'][name] = @value
+            when 'CreateTime', 'ID', 'Status'
+              @response[name] = @value
+            when 'Path'
+              @response['InvalidationBatch'][name] << @value
+            end
+          end
+
+        end
+
+      end
+    end
+  end
+end

lib/fog/aws/requests/cdn/post_invalidation.rb

@@ -0,0 +1,58 @@
+module Fog
+  module AWS
+    class CDN
+      class Real
+
+        require 'fog/aws/parsers/cdn/post_invalidation'
+
+        # List information about distributions in CloudFront
+        #
+        # ==== Parameters
+        # * distribution_id<~String> - Id of distribution for invalidations
+        # * paths<~Array> - Array of string paths to objects to invalidate
+        # * caller_reference<~String> - Used to prevent replay, defaults to Time.now.to_i.to_s
+        #
+        #
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        #     * 'Id'<~String> - Id of invalidation
+        #     * 'Status'<~String> - Status of invalidation
+        #     * 'CreateTime'<~Integer> - Time of invalidation creation
+        #     * 'InvalidationBatch'<~Array>:
+        #       * 'Path'<~Array>: Array of strings of objects to invalidate
+        #       * 'CallerReference'<~String>: Used to prevent replay, defaults to Time.now.to_i.to_s
+        #
+        # ==== See Also
+        # http://docs.amazonwebservices.com/AmazonCloudFront/latest/APIReference/CreateInvalidation.html
+
+        def post_invalidation(distribution_id, paths, caller_reference = Time.now.to_i.to_s)
+          body = '<?xml version="1.0" encoding="UTF-8"?>'
+          body << "<InvalidationBatch>"
+          for path in paths
+            body << "<Path>" << path << "</Path>"
+          end
+          body << "<CallerReference>" << caller_reference << "</CallerReference>"
+          body << "</InvalidationBatch>"
+          request({
+            :expects    => 201,
+            :headers    => {'Content-Type' => 'text/xml'},
+            :idempotent => true,
+            :method     => 'POST',
+            :parser     => Fog::Parsers::AWS::CDN::PostInvalidation.new,
+            :path       => "/distribution/#{distribution_id}/invalidation"
+          })
+        end
+
+      end
+
+      class Mock # :nodoc:all
+
+        def post_invalidation(distribution_id, paths, caller_reference = Time.now.to_i.to_s)
+          Fog::Mock.not_implemented
+        end
+
+      end
+    end
+  end
+end