Beginning work on volumes
diff --git a/rackspace/blockstorage/v1/volumes/results.go b/rackspace/blockstorage/v1/volumes/results.go
new file mode 100644
index 0000000..8c3f837
--- /dev/null
+++ b/rackspace/blockstorage/v1/volumes/results.go
@@ -0,0 +1,72 @@
+package volumes
+
+import (
+ "github.com/rackspace/gophercloud"
+ os "github.com/rackspace/gophercloud/openstack/blockstorage/v1/volumes"
+ "github.com/rackspace/gophercloud/pagination"
+
+ "github.com/mitchellh/mapstructure"
+)
+
+type Volume struct {
+ os.Volume
+}
+
+type commonResult struct {
+ gophercloud.CommonResult
+}
+
+// CreateResult represents the result of a create operation
+type CreateResult struct {
+ os.CreateResult
+}
+
+// GetResult represents the result of a get operation
+type GetResult struct {
+ os.GetResult
+}
+
+// UpdateResult represents the result of an update operation
+type UpdateResult struct {
+ os.UpdateResult
+}
+
+func commonExtract(resp map[string]interface{}, err error) (*Volume, error) {
+ if err != nil {
+ return nil, err
+ }
+
+ var respStruct struct {
+ Volume *Volume `json:"volume"`
+ }
+
+ err = mapstructure.Decode(resp, &respStruct)
+
+ return respStruct.Volume, err
+}
+
+// Extract will get the Volume object out of the GetResult object.
+func (r GetResult) Extract() (*Volume, error) {
+ return commonExtract(r.Resp, r.Err)
+}
+
+// Extract will get the Volume object out of the CreateResult object.
+func (r CreateResult) Extract() (*Volume, error) {
+ return commonExtract(r.Resp, r.Err)
+}
+
+// Extract will get the Volume object out of the UpdateResult object.
+func (r UpdateResult) Extract() (*Volume, error) {
+ return commonExtract(r.Resp, r.Err)
+}
+
+// ExtractSnapshots extracts and returns Volumes. It is used while iterating over a volumes.List call.
+func ExtractVolumes(page pagination.Page) ([]Volume, error) {
+ var response struct {
+ Volumes []Volume `json:"volumes"`
+ }
+
+ err := mapstructure.Decode(page.(os.ListResult).Body, &response)
+
+ return response.Volumes, err
+}