1 files changed, 195 insertions, 0 deletions
diff --git a/src/orchestrator/pkg/module/app_intent.go b/src/orchestrator/pkg/module/app_intent.go
new file mode 100644
index 00000000..70c80dac
--- /dev/null
+++ b/src/orchestrator/pkg/module/app_intent.go
@@ -0,0 +1,195 @@
+/*
+ * 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 (
+	"encoding/json"
+	"reflect"
+
+	"github.com/onap/multicloud-k8s/src/orchestrator/pkg/infra/db"
+
+	pkgerrors "github.com/pkg/errors"
+)
+
+// AppIntent has two components - metadata, spec
+type AppIntent struct {
+	MetaData MetaData `json:"metadata"`
+	Spec     SpecData `json:"spec"`
+}
+
+// MetaData has - name, description, userdata1, userdata2
+type MetaData struct {
+	Name        string `json:"name"`
+	Description string `json:"description"`
+	UserData1   string `json:"userData1"`
+	UserData2   string `json:"userData2"`
+}
+
+// AllOf consists of AnyOfArray and ClusterNames array
+type AllOf struct {
+	ClusterName      string  `json:"cluster-name,omitempty"`
+	ClusterLabelName string  `json:"cluster-label-name,omitempty"`
+	AnyOfArray       []AnyOf `json:"anyOf,omitempty"`
+}
+
+// AnyOf consists of Array of ClusterLabelNames
+type AnyOf struct {
+	ClusterName      string `json:"cluster-name,omitempty"`
+	ClusterLabelName string `json:"cluster-label-name,omitempty"`
+}
+
+// IntentStruc consists of AllOfArray and AnyOfArray
+type IntentStruc struct {
+	AllOfArray []AllOf `json:"allOf,omitempty"`
+	AnyOfArray []AnyOf `json:"anyOf,omitempty"`
+}
+
+// SpecData consists of appName and intent
+type SpecData struct {
+	AppName string      `json:"app-name"`
+	Intent  IntentStruc `json:"intent"`
+}
+
+// AppIntentManager is an interface which exposes the
+// AppIntentManager functionalities
+type AppIntentManager interface {
+	CreateAppIntent(a AppIntent, p string, ca string, v string, i string) (AppIntent, error)
+	GetAppIntent(ai string, p string, ca string, v string, i string) (AppIntent, error)
+	DeleteAppIntent(ai string, p string, ca string, v string, i string) error
+}
+
+// AppIntentKey is used as primary key
+type AppIntentKey struct {
+	Name         string `json:"name"`
+	Project      string `json:"project"`
+	CompositeApp string `json:"compositeapp"`
+	Version      string `json:"version"`
+	Intent       string `json:"intent-name"`
+}
+
+// We will use json marshalling to convert to string to
+// preserve the underlying structure.
+func (ak AppIntentKey) String() string {
+	out, err := json.Marshal(ak)
+	if err != nil {
+		return ""
+	}
+	return string(out)
+}
+
+// AppIntentClient implements the AppIntentManager interface
+type AppIntentClient struct {
+	storeName   string
+	tagMetaData string
+}
+
+// NewAppIntentClient returns an instance of AppIntentClient
+func NewAppIntentClient() *AppIntentClient {
+	return &AppIntentClient{
+		storeName:   "orchestrator",
+		tagMetaData: "appintent",
+	}
+}
+
+// CreateAppIntent creates an entry for AppIntent in the db. Other input parameters for it - projectName, compositeAppName, version, intentName.
+func (c *AppIntentClient) CreateAppIntent(a AppIntent, p string, ca string, v string, i string) (AppIntent, error) {
+
+	//Check for the AppIntent already exists here.
+	res, err := c.GetAppIntent(a.MetaData.Name, p, ca, v, i)
+	if !reflect.DeepEqual(res, AppIntent{}) {
+		return AppIntent{}, pkgerrors.New("AppIntent already exists")
+	}
+
+	//Check if project exists
+	_, err = NewProjectClient().GetProject(p)
+	if err != nil {
+		return AppIntent{}, pkgerrors.New("Unable to find the project")
+	}
+
+	// check if compositeApp exists
+	_, err = NewCompositeAppClient().GetCompositeApp(ca, v, p)
+	if err != nil {
+		return AppIntent{}, pkgerrors.New("Unable to find the composite-app")
+	}
+
+	// check if Intent exists
+	_, err = NewGenericPlacementIntentClient().GetGenericPlacementIntent(i, p, ca, v)
+	if err != nil {
+		return AppIntent{}, pkgerrors.New("Unable to find the intent")
+	}
+
+	akey := AppIntentKey{
+		Name:         a.MetaData.Name,
+		Project:      p,
+		CompositeApp: ca,
+		Version:      v,
+		Intent:       i,
+	}
+
+	err = db.DBconn.Insert(c.storeName, akey, nil, c.tagMetaData, a)
+	if err != nil {
+		return AppIntent{}, pkgerrors.Wrap(err, "Create DB entry error")
+	}
+
+	return a, nil
+}
+
+// GetAppIntent shall take arguments - name of the app intent, name of the project, name of the composite app, version of the composite app and intent name. It shall return the AppIntent
+func (c *AppIntentClient) GetAppIntent(ai string, p string, ca string, v string, i string) (AppIntent, error) {
+
+	k := AppIntentKey{
+		Name:         ai,
+		Project:      p,
+		CompositeApp: ca,
+		Version:      v,
+		Intent:       i,
+	}
+
+	result, err := db.DBconn.Find(c.storeName, k, c.tagMetaData)
+	if err != nil {
+		return AppIntent{}, pkgerrors.Wrap(err, "Get AppIntent error")
+	}
+
+	if result != nil {
+		a := AppIntent{}
+		err = db.DBconn.Unmarshal(result[0], &a)
+		if err != nil {
+			return AppIntent{}, pkgerrors.Wrap(err, "Unmarshalling  AppIntent")
+		}
+		return a, nil
+
+	}
+	return AppIntent{}, pkgerrors.New("Error getting AppIntent")
+}
+
+// DeleteAppIntent delete an AppIntent
+func (c *AppIntentClient) DeleteAppIntent(ai string, p string, ca string, v string, i string) error {
+	k := AppIntentKey{
+		Name:         ai,
+		Project:      p,
+		CompositeApp: ca,
+		Version:      v,
+		Intent:       i,
+	}
+
+	err := db.DBconn.Remove(c.storeName, k)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete Project entry;")
+	}
+	return nil
+
+}