1 files changed, 164 insertions, 0 deletions
diff --git a/src/k8splugin/internal/rb/definition.go b/src/k8splugin/internal/rb/definition.go
new file mode 100644
index 00000000..8a26332b
--- /dev/null
+++ b/src/k8splugin/internal/rb/definition.go
@@ -0,0 +1,164 @@
+/*
+ * 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 rb
+
+import (
+	"bytes"
+	"encoding/base64"
+	"k8splugin/internal/db"
+	"log"
+
+	uuid "github.com/hashicorp/go-uuid"
+	pkgerrors "github.com/pkg/errors"
+)
+
+// Definition contains the parameters needed for resource bundle (rb) definitions
+// It implements the interface for managing the definitions
+type Definition struct {
+	UUID        string `json:"uuid,omitempty"`
+	Name        string `json:"name"`
+	ChartName   string `json:"chart-name"`
+	Description string `json:"description"`
+	ServiceType string `json:"service-type"`
+}
+
+// DefinitionManager is an interface exposes the resource bundle definition functionality
+type DefinitionManager interface {
+	Create(def Definition) (Definition, error)
+	List() ([]Definition, error)
+	Get(resID string) (Definition, error)
+	Delete(resID string) error
+	Upload(resID string, inp []byte) error
+}
+
+// DefinitionClient implements the DefinitionManager
+// It will also be used to maintain some localized state
+type DefinitionClient struct {
+	storeName           string
+	tagMeta, tagContent string
+}
+
+// NewDefinitionClient returns an instance of the DefinitionClient
+// which implements the DefinitionManager
+// Uses rbdef collection in underlying db
+func NewDefinitionClient() *DefinitionClient {
+	return &DefinitionClient{
+		storeName:  "rbdef",
+		tagMeta:    "metadata",
+		tagContent: "content",
+	}
+}
+
+// Create an entry for the resource in the database
+func (v *DefinitionClient) Create(def Definition) (Definition, error) {
+	// If UUID is empty, we will generate one
+	if def.UUID == "" {
+		def.UUID, _ = uuid.GenerateUUID()
+	}
+	key := def.UUID
+
+	err := db.DBconn.Create(v.storeName, key, v.tagMeta, def)
+	if err != nil {
+		return Definition{}, pkgerrors.Wrap(err, "Creating DB Entry")
+	}
+
+	return def, nil
+}
+
+// List all resource entries in the database
+func (v *DefinitionClient) List() ([]Definition, error) {
+	res, err := db.DBconn.ReadAll(v.storeName, v.tagMeta)
+	if err != nil || len(res) == 0 {
+		return []Definition{}, pkgerrors.Wrap(err, "Listing Resource Bundle Definitions")
+	}
+
+	var results []Definition
+	for key, value := range res {
+		//value is a byte array
+		if len(value) > 0 {
+			def := Definition{}
+			err = db.DBconn.Unmarshal(value, &def)
+			if err != nil {
+				log.Printf("[Definition] Error Unmarshaling value for: %s", key)
+				continue
+			}
+			results = append(results, def)
+		}
+	}
+
+	return results, nil
+}
+
+// Get returns the Resource Bundle Definition for corresponding ID
+func (v *DefinitionClient) Get(id string) (Definition, error) {
+	value, err := db.DBconn.Read(v.storeName, id, v.tagMeta)
+	if err != nil {
+		return Definition{}, pkgerrors.Wrap(err, "Get Resource Bundle definition")
+	}
+
+	//value is a byte array
+	if value != nil {
+		def := Definition{}
+		err = db.DBconn.Unmarshal(value, &def)
+		if err != nil {
+			return Definition{}, pkgerrors.Wrap(err, "Unmarshaling Value")
+		}
+		return def, nil
+	}
+
+	return Definition{}, pkgerrors.New("Error getting Resource Bundle Definition")
+}
+
+// Delete the Resource Bundle definition from database
+func (v *DefinitionClient) Delete(id string) error {
+	err := db.DBconn.Delete(v.storeName, id, v.tagMeta)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete Resource Bundle Definition")
+	}
+
+	//Delete the content when the delete operation happens
+	err = db.DBconn.Delete(v.storeName, id, v.tagContent)
+	if err != nil {
+		return pkgerrors.Wrap(err, "Delete Resource Bundle Definition Content")
+	}
+
+	return nil
+}
+
+// Upload the contents of resource bundle into database
+func (v *DefinitionClient) Upload(id string, inp []byte) error {
+
+	//ignore the returned data here
+	_, err := v.Get(id)
+	if err != nil {
+		return pkgerrors.Errorf("Invalid Definition ID provided: %s", err.Error())
+	}
+
+	err = isTarGz(bytes.NewBuffer(inp))
+	if err != nil {
+		return pkgerrors.Errorf("Error in file format: %s", err.Error())
+	}
+
+	//Encode given byte stream to text for storage
+	encodedStr := base64.StdEncoding.EncodeToString(inp)
+	err = db.DBconn.Create(v.storeName, id, v.tagContent, encodedStr)
+	if err != nil {
+		return pkgerrors.Errorf("Error uploading data to db: %s", err.Error())
+	}
+
+	return nil
+}