1 files changed, 170 insertions, 0 deletions
diff --git a/src/ncm/pkg/module/network.go b/src/ncm/pkg/module/network.go
new file mode 100644
index 00000000..2d4121e9
--- /dev/null
+++ b/src/ncm/pkg/module/network.go
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2020 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 module
+
+import (
+	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+
+	pkgerrors "github.com/pkg/errors"
+)
+
+// Network contains the parameters needed for dynamic networks
+type Network struct {
+	Metadata Metadata    `json:"metadata"`
+	Spec     NetworkSpec `json:"spec"`
+}
+
+type NetworkSpec struct {
+	CniType     string       `json:"cniType"`
+	Ipv4Subnets []Ipv4Subnet `json:"ipv4Subnets"`
+}
+
+// NetworkKey is the key structure that is used in the database
+type NetworkKey struct {
+	ClusterProviderName string `json:"provider"`
+	ClusterName         string `json:"cluster"`
+	NetworkName         string `json:"network"`
+}
+
+// Manager is an interface exposing the Network functionality
+type NetworkManager interface {
+	CreateNetwork(pr Network, clusterProvider, cluster string, exists bool) (Network, error)
+	GetNetwork(name, clusterProvider, cluster string) (Network, error)
+	GetNetworks(clusterProvider, cluster string) ([]Network, error)
+	DeleteNetwork(name, clusterProvider, cluster string) error
+}
+
+// NetworkClient implements the Manager
+// It will also be used to maintain some localized state
+type NetworkClient struct {
+	db ClientDbInfo
+}
+
+// NewNetworkClient returns an instance of the NetworkClient
+// which implements the Manager
+func NewNetworkClient() *NetworkClient {
+	return &NetworkClient{
+		db: ClientDbInfo{
+			storeName: "cluster",
+			tagMeta:   "networkmetadata",
+		},
+	}
+}
+
+// CreateNetwork - create a new Network
+func (v *NetworkClient) CreateNetwork(p Network, clusterProvider, cluster string, exists bool) (Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         p.Metadata.Name,
+	}
+
+	//Check if cluster exists
+	_, err := NewClusterClient().GetCluster(clusterProvider, cluster)
+	if err != nil {
+		return Network{}, pkgerrors.New("Unable to find the cluster")
+	}
+
+	//Check if this Network already exists
+	_, err = v.GetNetwork(p.Metadata.Name, clusterProvider, cluster)
+	if err == nil && !exists {
+		return Network{}, pkgerrors.New("Network already exists")
+	}
+
+	err = db.DBconn.Insert(v.db.storeName, key, nil, v.db.tagMeta, p)
+	if err != nil {
+		return Network{}, pkgerrors.Wrap(err, "Creating DB Entry")
+	}
+
+	return p, nil
+}
+
+// GetNetwork returns the Network for corresponding name
+func (v *NetworkClient) GetNetwork(name, clusterProvider, cluster string) (Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         name,
+	}
+
+	value, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return Network{}, pkgerrors.Wrap(err, "Get Network")
+	}
+
+	//value is a byte array
+	if value != nil {
+		cp := Network{}
+		err = db.DBconn.Unmarshal(value[0], &cp)
+		if err != nil {
+			return Network{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		return cp, nil
+	}
+
+	return Network{}, pkgerrors.New("Error getting Network")
+}
+
+// GetNetworkList returns all of the Network for corresponding name
+func (v *NetworkClient) GetNetworks(clusterProvider, cluster string) ([]Network, error) {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         "",
+	}
+
+	var resp []Network
+	values, err := db.DBconn.Find(v.db.storeName, key, v.db.tagMeta)
+	if err != nil {
+		return []Network{}, pkgerrors.Wrap(err, "Get Networks")
+	}
+
+	for _, value := range values {
+		cp := Network{}
+		err = db.DBconn.Unmarshal(value, &cp)
+		if err != nil {
+			return []Network{}, pkgerrors.Wrap(err, "Unmarshalling Value")
+		}
+		resp = append(resp, cp)
+	}
+
+	return resp, nil
+}
+
+// Delete the  Network from database
+func (v *NetworkClient) DeleteNetwork(name, clusterProvider, cluster string) error {
+
+	//Construct key and tag to select the entry
+	key := NetworkKey{
+		ClusterProviderName: clusterProvider,
+		ClusterName:         cluster,
+		NetworkName:         name,
+	}
+
+	err := db.DBconn.Remove(v.db.storeName, key)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete Network Entry;")
+	}
+
+	return nil
+}