Add everything back into one project hood, still missing iodine

pkg/storage/donut/donut_node.go

@@ -0,0 +1,77 @@
+/*
+ * Minimalist Object Storage, (C) 2015 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package donut
+
+import (
+	"errors"
+
+	"github.com/minio-io/iodine"
+)
+
+// node struct internal
+type node struct {
+	hostname string
+	disks    map[string]Disk
+}
+
+// NewNode - instantiates a new node
+func NewNode(hostname string) (Node, error) {
+	if hostname == "" {
+		return nil, iodine.New(errors.New("invalid argument"), nil)
+	}
+	disks := make(map[string]Disk)
+	n := node{
+		hostname: hostname,
+		disks:    disks,
+	}
+	return n, nil
+}
+
+// GetNodeName - return hostname
+func (n node) GetNodeName() string {
+	return n.hostname
+}
+
+// ListDisks - return number of disks
+func (n node) ListDisks() (map[string]Disk, error) {
+	return n.disks, nil
+}
+
+// AttachDisk - attach a disk
+func (n node) AttachDisk(disk Disk) error {
+	if disk == nil {
+		return iodine.New(errors.New("Invalid argument"), nil)
+	}
+	n.disks[disk.GetPath()] = disk
+	return nil
+}
+
+// DetachDisk - detach a disk
+func (n node) DetachDisk(disk Disk) error {
+	delete(n.disks, disk.GetPath())
+	return nil
+}
+
+// SaveConfig - save node configuration
+func (n node) SaveConfig() error {
+	return errors.New("Not Implemented")
+}
+
+// LoadConfig - load node configuration from saved configs
+func (n node) LoadConfig() error {
+	return errors.New("Not Implemented")
+}