Add vnf definition APIs3.0.0-ONAPcasablanca

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>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/k8splugin/db/DB.go b/src/k8splugin/db/DB.go
index c8895088..d92b5953 100644
--- a/src/k8splugin/db/DB.go
+++ b/src/k8splugin/db/DB.go
@@ -14,6 +14,9 @@ limitations under the License.
 package db
 
 import (
+	"encoding/json"
+	"reflect"
+
 	pkgerrors "github.com/pkg/errors"
 )
 
@@ -40,3 +43,21 @@ var CreateDBClient = func(dbType string) error {
 		return pkgerrors.New(dbType + "DB not supported")
 	}
 }
+
+// Serialize converts given data into a JSON string
+func Serialize(v interface{}) (string, error) {
+	out, err := json.Marshal(v)
+	if err != nil {
+		return "", pkgerrors.Wrap(err, "Error serializing "+reflect.TypeOf(v).String())
+	}
+	return string(out), nil
+}
+
+// DeSerialize converts string to a json object specified by type
+func DeSerialize(str string, v interface{}) error {
+	err := json.Unmarshal([]byte(str), &v)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Error deSerializing "+str)
+	}
+	return nil
+}