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-rw-r--r--src/k8splugin/internal/connection/connection.go127
1 files changed, 127 insertions, 0 deletions
diff --git a/src/k8splugin/internal/connection/connection.go b/src/k8splugin/internal/connection/connection.go
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+++ b/src/k8splugin/internal/connection/connection.go
@@ -0,0 +1,127 @@
+/*
+ * 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 connection
+
+import (
+ "encoding/json"
+ "k8splugin/internal/db"
+
+ pkgerrors "github.com/pkg/errors"
+)
+
+// Connection contains the parameters needed for Connection information for a Cloud region
+type Connection struct {
+ ConnectionName string `json:"name"`
+ CloudOwner string `json:"cloud-owner"`
+ CloudRegionID string `json:"cloud-region-id"`
+ Kubeconfig map[string]interface{} `json:"kubeconfig"`
+ OtherConnectivityList map[string]interface{} `json:"other-connectivity-list"`
+}
+
+// ConnectionKey is the key structure that is used in the database
+type ConnectionKey struct {
+ ConnectionName string `json:"connection-name"`
+}
+
+// We will use json marshalling to convert to string to
+// preserve the underlying structure.
+func (dk ConnectionKey) String() string {
+ out, err := json.Marshal(dk)
+ if err != nil {
+ return ""
+ }
+
+ return string(out)
+}
+
+// ConnectionManager is an interface exposes the Connection functionality
+type ConnectionManager interface {
+ Create(c Connection) (Connection, error)
+ Get(name string) (Connection, error)
+ Delete(name string) error
+}
+
+// ConnectionClient implements the ConnectionManager
+// It will also be used to maintain some localized state
+type ConnectionClient struct {
+ storeName string
+ tagMeta string
+}
+
+// New ConnectionClient returns an instance of the ConnectionClient
+// which implements the ConnectionManager
+func NewConnectionClient() *ConnectionClient {
+ return &ConnectionClient{
+ storeName: "connection",
+ tagMeta: "metadata",
+ }
+}
+
+// Create an entry for the Connection resource in the database`
+func (v *ConnectionClient) Create(c Connection) (Connection, error) {
+
+ //Construct composite key consisting of name
+ key := ConnectionKey{ConnectionName: c.ConnectionName}
+
+ //Check if this Connection already exists
+ _, err := v.Get(c.ConnectionName)
+ if err == nil {
+ return Connection{}, pkgerrors.New("Connection already exists")
+ }
+
+ err = db.DBconn.Create(v.storeName, key, v.tagMeta, c)
+ if err != nil {
+ return Connection{}, pkgerrors.Wrap(err, "Creating DB Entry")
+ }
+
+ return c, nil
+}
+
+// Get returns Connection for corresponding to name
+func (v *ConnectionClient) Get(name string) (Connection, error) {
+
+ //Construct the composite key to select the entry
+ key := ConnectionKey{ConnectionName: name}
+ value, err := db.DBconn.Read(v.storeName, key, v.tagMeta)
+ if err != nil {
+ return Connection{}, pkgerrors.Wrap(err, "Get Connection")
+ }
+
+ //value is a byte array
+ if value != nil {
+ c := Connection{}
+ err = db.DBconn.Unmarshal(value, &c)
+ if err != nil {
+ return Connection{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+ }
+ return c, nil
+ }
+
+ return Connection{}, pkgerrors.New("Error getting Connection")
+}
+
+// Delete the Connection from database
+func (v *ConnectionClient) Delete(name string) error {
+
+ //Construct the composite key to select the entry
+ key := ConnectionKey{ConnectionName: name}
+ err := db.DBconn.Delete(v.storeName, key, v.tagMeta)
+ if err != nil {
+ return pkgerrors.Wrap(err, "Delete Connection")
+ }
+ return nil
+}