Add StorageOS volume plugin

vendor/github.com/storageos/go-api/namespace.go

@@ -0,0 +1,125 @@
+package storageos
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/url"
+
+	"github.com/storageos/go-api/types"
+)
+
+var (
+
+	// NamespaceAPIPrefix is a partial path to the HTTP endpoint.
+	NamespaceAPIPrefix = "namespaces"
+
+	// ErrNoSuchNamespace is the error returned when the namespace does not exist.
+	ErrNoSuchNamespace = errors.New("no such namespace")
+
+	// ErrNamespaceInUse is the error returned when the namespace requested to be removed is still in use.
+	ErrNamespaceInUse = errors.New("namespace in use and cannot be removed")
+)
+
+// NamespaceList returns the list of available namespaces.
+func (c *Client) NamespaceList(opts types.ListOptions) ([]*types.Namespace, error) {
+	listOpts := doOptions{
+		fieldSelector: opts.FieldSelector,
+		labelSelector: opts.LabelSelector,
+		namespace:     opts.Namespace,
+		context:       opts.Context,
+	}
+
+	if opts.LabelSelector != "" {
+		query := url.Values{}
+		query.Add("labelSelector", opts.LabelSelector)
+		listOpts.values = query
+	}
+
+	resp, err := c.do("GET", NamespaceAPIPrefix, listOpts)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	var namespaces []*types.Namespace
+	if err := json.NewDecoder(resp.Body).Decode(&namespaces); err != nil {
+		return nil, err
+	}
+	return namespaces, nil
+}
+
+// Namespace returns a namespace by its reference.
+func (c *Client) Namespace(ref string) (*types.Namespace, error) {
+	resp, err := c.do("GET", NamespaceAPIPrefix+"/"+ref, doOptions{})
+	if err != nil {
+		if e, ok := err.(*Error); ok && e.Status == http.StatusNotFound {
+			return nil, ErrNoSuchNamespace
+		}
+		return nil, err
+	}
+	defer resp.Body.Close()
+	var namespace types.Namespace
+	if err := json.NewDecoder(resp.Body).Decode(&namespace); err != nil {
+		return nil, err
+	}
+	return &namespace, nil
+}
+
+// NamespaceCreate creates a namespace on the server and returns the new object.
+func (c *Client) NamespaceCreate(opts types.NamespaceCreateOptions) (*types.Namespace, error) {
+	resp, err := c.do("POST", NamespaceAPIPrefix, doOptions{
+		data:    opts,
+		context: opts.Context,
+	})
+	if err != nil {
+		return nil, err
+	}
+	var namespace types.Namespace
+	if err := json.NewDecoder(resp.Body).Decode(&namespace); err != nil {
+		return nil, err
+	}
+	return &namespace, nil
+}
+
+// NamespaceUpdate updates a namespace on the server and returns the updated object.
+func (c *Client) NamespaceUpdate(opts types.NamespaceCreateOptions) (*types.Namespace, error) {
+	resp, err := c.do("PUT", NamespaceAPIPrefix+"/"+opts.Name, doOptions{
+		data:    opts,
+		context: opts.Context,
+	})
+	if err != nil {
+		return nil, err
+	}
+	var namespace types.Namespace
+	if err := json.NewDecoder(resp.Body).Decode(&namespace); err != nil {
+		return nil, err
+	}
+	return &namespace, nil
+}
+
+// NamespaceDelete removes a namespace by its reference.
+func (c *Client) NamespaceDelete(opts types.DeleteOptions) error {
+	deleteOpts := doOptions{
+		force:   opts.Force,
+		context: opts.Context,
+	}
+	resp, err := c.do("DELETE", NamespaceAPIPrefix+"/"+opts.Name, deleteOpts)
+	if err != nil {
+		if e, ok := err.(*Error); ok {
+			if e.Status == http.StatusNotFound {
+				return ErrNoSuchNamespace
+			}
+			if e.Status == http.StatusConflict {
+				return ErrNamespaceInUse
+			}
+
+			// namespace can't be deleted yet, unless force is supplied
+			if e.Status == http.StatusPreconditionFailed {
+				return err
+			}
+		}
+		return err
+	}
+	defer resp.Body.Close()
+	return nil
+}