[rackspace|blockstorage] Add volume types to block storage.

lib/fog/bin/rackspace.rb

@@ -4,7 +4,7 @@ class Rackspace < Fog::Bin
     def class_for(key)
       case key
       when :block_storage
-          Fog::Rackspace::BlockStorage.new    
+        Fog::Rackspace::BlockStorage 
       when :cdn
         Fog::CDN::Rackspace
       when :compute

lib/fog/rackspace/block_storage.rb

@@ -19,12 +19,17 @@ module Fog
       model_path 'fog/rackspace/models/block_storage'
       model :volume
       collection :volumes
+      model :volume_type
+      collection :volume_types
 
       request_path 'fog/rackspace/requests/block_storage'
       request :create_volume
       request :delete_volume
       request :get_volume
       request :list_volumes
+      request :get_volume_type
+      request :list_volume_types
+
 
       class Mock
         def request(params)

lib/fog/rackspace/models/block_storage/volume_type.rb

@@ -0,0 +1,14 @@
+require 'fog/core/model'
+
+module Fog
+  module Rackspace
+    class BlockStorage
+      class VolumeType < Fog::Model
+        identity :id
+
+        attribute :name
+        attribute :extra_specs
+      end
+    end
+  end
+end

lib/fog/rackspace/models/block_storage/volume_types.rb

@@ -0,0 +1,25 @@
+require 'fog/core/collection'
+require 'fog/rackspace/models/block_storage/volume_type'
+
+module Fog
+  module Rackspace
+    class BlockStorage
+      class VolumeTypes < Fog::Collection
+
+        model Fog::Rackspace::BlockStorage::VolumeType
+
+        def all
+          data = connection.list_volume_types.body['volume_types']
+          load(data)
+        end
+
+        def get(volume_type_id)
+          data = connection.get_volume_type(volume_type_id).body['volume_type']
+          new(data)
+        rescue Fog::Rackspace::BlockStorage::NotFound
+          nil
+        end   
+      end
+    end
+  end
+end

lib/fog/rackspace/requests/block_storage/get_volume_type.rb

@@ -0,0 +1,15 @@
+module Fog
+  module Rackspace
+    class BlockStorage
+      class Real
+        def get_volume_type(volume_type_id)
+          request(
+            :expects => [200],
+            :method => 'GET',
+            :path => "/types/#{volume_type_id}"
+          )
+        end
+      end
+    end
+  end
+end

lib/fog/rackspace/requests/block_storage/list_volume_types.rb

@@ -0,0 +1,15 @@
+module Fog
+  module Rackspace
+    class BlockStorage
+      class Real
+        def list_volume_types
+          request(
+            :expects => [200],
+            :method => 'GET',
+            :path => '/types'
+          )
+        end
+      end
+    end
+  end
+end