First Commit of Voltha-Go-Controller from Radisys

Change-Id: I8e2e908e7ab09a4fe3d86849da18b6d69dcf4ab0
diff --git a/internal/pkg/controller/controllertasks.go b/internal/pkg/controller/controllertasks.go
new file mode 100644
index 0000000..bd06ffb
--- /dev/null
+++ b/internal/pkg/controller/controllertasks.go
@@ -0,0 +1,76 @@
+/*
+* Copyright 2022-present Open Networking Foundation
+* 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 controller
+
+import (
+	"context"
+	"time"
+
+	"voltha-go-controller/internal/pkg/intf"
+	"voltha-go-controller/internal/pkg/vpagent"
+
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+)
+
+// AddDeviceTask structure
+type AddDeviceTask struct {
+	taskID    uint8
+	ctx       context.Context
+	config    *intf.VPClientCfg
+	timestamp string
+}
+
+// NewAddDeviceTask is the constructor for AddDeviceTask
+func NewAddDeviceTask(config *intf.VPClientCfg) *AddDeviceTask {
+	var adt AddDeviceTask
+	adt.config = config
+	tstamp := (time.Now()).Format(time.RFC3339Nano)
+	adt.timestamp = tstamp
+	return &adt
+}
+
+// Name returns name of the task
+func (adt *AddDeviceTask) Name() string {
+	return "Add Device Task"
+}
+
+// TaskID returns task Id of the task
+func (adt *AddDeviceTask) TaskID() uint8 {
+	return adt.taskID
+}
+
+// Timestamp returns time stamp for the task
+func (adt *AddDeviceTask) Timestamp() string {
+	return adt.timestamp
+}
+
+// Stop to stop the task
+func (adt *AddDeviceTask) Stop() {
+}
+
+// Start to start the task
+func (adt *AddDeviceTask) Start(ctx context.Context, taskID uint8) error {
+	adt.taskID = taskID
+	adt.ctx = ctx
+
+	logger.Infow(ctx, "Add Device Task Triggered", log.Fields{"Device": adt.config.DeviceID, "SerialNum": adt.config.SerialNum})
+
+	device := GetController().AddDevice(adt.config)
+	vpagent.GetVPAgent().AddClientToClientMap(adt.config.DeviceID, device)
+	logger.Infow(ctx, "Add Device Task Completed", log.Fields{"Device": adt.config.DeviceID, "SerialNum": adt.config.SerialNum})
+
+	return nil
+}