From 7d2d48d3d0b35de0acd03c6e8a1261efd736edc3 Mon Sep 17 00:00:00 2001
From: Kiran Kamineni <kiran.k.kamineni@intel.com>
Date: Wed, 31 Oct 2018 16:24:32 -0700
Subject: Add vnf definition APIs

Adding APIs for POST, GET, LIST (implemented via GET)
and DELETE commands on /v1/vnfd base for creating,
getting, listing and deleting VNF Definitions.
P2: Added unit tests for vnfdhandler.go
P3: Add unit tests for serialize and deserialize
P4: Integrating review comments
P5: Added customizable mocking for vnfdhandler_test
P6: Added customizablt mocking for vnfd_test
    Note that this will soon need to be updated once
    the db changes go through in patch 71090

Issue-ID: MULTICLOUD-393
Change-Id: Id509bed370ab3bdc572c6ead22324c1ee3dbf82d
Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>
Signed-off-by: Victor Morales <victor.morales@intel.com>
---
 src/k8splugin/vnfd/vnfd.go | 134 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 src/k8splugin/vnfd/vnfd.go

(limited to 'src/k8splugin/vnfd/vnfd.go')

diff --git a/src/k8splugin/vnfd/vnfd.go b/src/k8splugin/vnfd/vnfd.go
new file mode 100644
index 00000000..322b2d78
--- /dev/null
+++ b/src/k8splugin/vnfd/vnfd.go
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2018 Intel Corporation, 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 vnfd
+
+import (
+	"k8splugin/db"
+	"log"
+
+	uuid "github.com/hashicorp/go-uuid"
+	pkgerrors "github.com/pkg/errors"
+)
+
+// VNFDefinition contains the parameters needed for VNF Definitions
+// It implements the interface for managing the definitions
+type VNFDefinition struct {
+	Name        string `json:"name"`
+	Description string `json:"description"`
+	UUID        string `json:"uuid,omitempty"`
+	ServiceType string `json:"service-type"`
+}
+
+// VNFDefinitionInterface is an interface exposes the VNFDefinition functionality
+type VNFDefinitionInterface interface {
+	Create(vnfd VNFDefinition) (VNFDefinition, error)
+	List() ([]VNFDefinition, error)
+	Get(vnfID string) (VNFDefinition, error)
+	Delete(vnfID string) error
+}
+
+// VNFDefinitionClient implements the VNFDefinitionInterface
+// It will also be used to maintain some localized state
+type VNFDefinitionClient struct {
+	keyPrefix string
+}
+
+// GetVNFDClient Returns an instance of the VNFDefinitionClient
+// which implements the VNFDefinitionInterface interface
+func GetVNFDClient() *VNFDefinitionClient {
+	return &VNFDefinitionClient{
+		keyPrefix: "vnfd/"}
+}
+
+// Create creates an entry for the VNF in the database
+func (v *VNFDefinitionClient) Create(vnfd VNFDefinition) (VNFDefinition, error) {
+	// If UUID is empty, we will generate one
+	if vnfd.UUID == "" {
+		vnfd.UUID, _ = uuid.GenerateUUID()
+	}
+	key := v.keyPrefix + vnfd.UUID
+
+	serData, err := db.Serialize(v)
+	if err != nil {
+		return VNFDefinition{}, pkgerrors.Wrap(err, "Serialize VNF Definition")
+	}
+
+	err = db.DBconn.CreateEntry(key, serData)
+	if err != nil {
+		return VNFDefinition{}, pkgerrors.Wrap(err, "Creating DB Entry")
+	}
+
+	return vnfd, nil
+}
+
+// List lists all vnf entries in the database
+func (v *VNFDefinitionClient) List() ([]VNFDefinition, error) {
+	strArray, err := db.DBconn.ReadAll(v.keyPrefix)
+	if err != nil {
+		return []VNFDefinition{}, pkgerrors.Wrap(err, "Listing VNF Definitions")
+	}
+
+	var retData []VNFDefinition
+
+	for _, key := range strArray {
+		value, ok, err := db.DBconn.ReadEntry(key)
+		if err != nil {
+			log.Printf("Error Reading Key: %s", key)
+			continue
+		}
+		if ok {
+			vnfd := VNFDefinition{}
+			err = db.DeSerialize(value, &vnfd)
+			if err != nil {
+				log.Printf("Error Deserializing Value: %s", value)
+				continue
+			}
+			retData = append(retData, vnfd)
+		}
+	}
+
+	return retData, nil
+}
+
+// Get returns the VNF Definition for corresponding ID
+func (v *VNFDefinitionClient) Get(vnfID string) (VNFDefinition, error) {
+	value, ok, err := db.DBconn.ReadEntry(v.keyPrefix + vnfID)
+	if err != nil {
+		return VNFDefinition{}, pkgerrors.Wrap(err, "Get VNF Definitions")
+	}
+
+	if ok {
+		vnfd := VNFDefinition{}
+		err = db.DeSerialize(value, &vnfd)
+		if err != nil {
+			return VNFDefinition{}, pkgerrors.Wrap(err, "Deserializing Value")
+		}
+		return vnfd, nil
+	}
+
+	return VNFDefinition{}, pkgerrors.New("Error getting VNF Definition")
+}
+
+// Delete deletes the VNF Definition from database
+func (v *VNFDefinitionClient) Delete(vnfID string) error {
+	err := db.DBconn.DeleteEntry(v.keyPrefix + vnfID)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete VNF Definitions")
+	}
+
+	return nil
+}
-- 
cgit 1.2.3-korg