Adding describe_reserved_cache_nodes.rb

'
'

lib/fog/aws/elasticache.rb

@@ -24,6 +24,7 @@ module Fog
       request :reset_cache_parameter_group
       request :describe_engine_default_parameters
       request :describe_cache_parameters
+      request :describe_reserved_cache_nodes
 
       request :create_cache_security_group
       request :delete_cache_security_group
@@ -87,7 +88,8 @@ module Fog
             :host               => @host,
             :path               => @path,
             :port               => @port,
-            :version            => '2011-07-15'
+            #:version            => '2011-07-15'
+            :version            => '2012-11-15'
           }
           )
 

lib/fog/aws/parsers/elasticache/describe_reserved_cache_nodes.rb

@@ -0,0 +1,37 @@
+module Fog
+  module Parsers
+    module AWS
+      module Elasticache 
+
+        class DescribeReservedCacheNodes < Fog::Parsers::Base
+
+          def reset
+            @reserved_node = {}
+            @response = { 'ReservedCacheNodes' => [] }
+          end
+
+          def end_element(name)
+            case name
+            when 'ReservedCacheNodeId', 'ReservedCacheNodesOfferingId', 'CacheNodeType', 'ProductDescription', 'State'
+              @reserved_node[name] = @value
+            when 'Duration', 'CacheNodeCount'
+              @reserved_node[name] = @value.to_i
+            when 'FixedPrice', 'UsagePrice'
+              @reserved_node[name] = @value.to_f
+            when 'ReservedCacheNode'
+              @response['ReservedCacheNodes'] << @reserved_node
+              @reserved_node = {}
+            when 'Marker'
+              @response[name] = @value
+            when 'StartTime'
+              @reserved_node[name] = Time.parse(@value)
+            end
+          end
+
+        end
+
+      end
+    end
+  end
+end
+   

lib/fog/aws/requests/elasticache/describe_reserved_cache_nodes.rb

@@ -0,0 +1,42 @@
+module Fog
+  module AWS
+    class Elasticache 
+      class Real
+
+        require 'fog/aws/parsers/elasticache/describe_reserved_cache_nodes'
+
+        # Describe all or specified reserved Elasticache nodes
+        # http://docs.aws.amazon.com/AmazonElastiCache/latest/APIReference/API_DescribeReservedCacheNodes.html
+        # ==== Parameters
+        # * ReservedCacheNodeId <~String> - ID of node to retrieve information for. If absent, information for all nodes is returned.
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        def describe_reserved_cache_nodes(identifier=nil, opts={})
+          params = {}
+          params['ReservedCacheNodeId'] = identifier if identifier
+          if opts[:marker]
+            params['Marker'] = opts[:marker]
+          end
+          if opts[:max_records]
+            params['MaxRecords'] = opts[:max_records]
+          end
+          
+          request({
+            'Action'  => 'DescribeReservedCacheNodes',
+            :parser   => Fog::Parsers::AWS::Elasticache::DescribeReservedCacheNodes.new
+          }.merge(params))
+        end
+
+      end
+
+      class Mock
+
+        def describe_db_reserved_instances(identifier=nil, opts={})
+          Fog::Mock.not_implemented
+        end
+
+      end
+    end
+  end
+end