VOL-1900 lint warning fixes db

Change-Id: Iaa4e5c271c9e1d7c8ebce1e13c7e723ea4762304
diff --git a/db/model/proxy_load_test.go b/db/model/proxy_load_test.go
index e5ae1c1..9c264e4 100644
--- a/db/model/proxy_load_test.go
+++ b/db/model/proxy_load_test.go
@@ -18,24 +18,25 @@
 import (
 	"context"
 	"encoding/hex"
+	"math/rand"
+	"reflect"
+	"strconv"
+	"sync"
+	"testing"
+
 	"github.com/google/uuid"
 	"github.com/opencord/voltha-lib-go/v2/pkg/log"
 	"github.com/opencord/voltha-protos/v2/go/common"
 	"github.com/opencord/voltha-protos/v2/go/openflow_13"
 	"github.com/opencord/voltha-protos/v2/go/voltha"
 	"github.com/stretchr/testify/assert"
-	"math/rand"
-	"reflect"
-	"strconv"
-	"sync"
-	"testing"
 )
 
 var (
-	BenchmarkProxy_Root        *root
-	BenchmarkProxy_DeviceProxy *Proxy
-	BenchmarkProxy_PLT         *proxyLoadTest
-	BenchmarkProxy_Logger      log.Logger
+	BenchmarkProxyRoot        Root
+	BenchmarkProxyDeviceProxy *Proxy
+	BenchmarkProxyPLT         *proxyLoadTest
+	BenchmarkProxyLogger      log.Logger
 )
 
 type proxyLoadChanges struct {
@@ -83,9 +84,9 @@
 
 func init() {
 	var err error
-	BenchmarkProxy_Root = NewRoot(&voltha.Voltha{}, nil)
+	BenchmarkProxyRoot = NewRoot(&voltha.Voltha{}, nil)
 
-	BenchmarkProxy_Logger, _ = log.AddPackage(log.JSON, log.DebugLevel, log.Fields{"instanceId": "PLT"})
+	BenchmarkProxyLogger, _ = log.AddPackage(log.JSON, log.DebugLevel, log.Fields{"instanceId": "PLT"})
 	//log.UpdateAllLoggers(log.Fields{"instanceId": "PROXY_LOAD_TEST"})
 	//Setup default logger - applies for packages that do not have specific logger set
 	if _, err := log.SetDefaultLogger(log.JSON, log.DebugLevel, log.Fields{"instanceId": "PLT"}); err != nil {
@@ -98,18 +99,18 @@
 	}
 	log.SetPackageLogLevel("github.com/opencord/voltha-go/db/model", log.DebugLevel)
 
-	if BenchmarkProxy_DeviceProxy, err = BenchmarkProxy_Root.node.CreateProxy(context.Background(), "/", false); err != nil {
+	if BenchmarkProxyDeviceProxy, err = BenchmarkProxyRoot.CreateProxy(context.Background(), "/", false); err != nil {
 		log.With(log.Fields{"error": err}).Fatal("Cannot create benchmark proxy")
 	}
 	// Register ADD instructions callbacks
-	BenchmarkProxy_PLT = &proxyLoadTest{}
+	BenchmarkProxyPLT = &proxyLoadTest{}
 
-	BenchmarkProxy_DeviceProxy.RegisterCallback(PRE_ADD, commonCallbackFunc, "PRE_ADD", BenchmarkProxy_PLT.SetPreAddExecuted)
-	BenchmarkProxy_DeviceProxy.RegisterCallback(POST_ADD, commonCallbackFunc, "POST_ADD", BenchmarkProxy_PLT.SetPostAddExecuted)
+	BenchmarkProxyDeviceProxy.RegisterCallback(PreAdd, commonCallbackFunc, "PreAdd", BenchmarkProxyPLT.SetPreAddExecuted)
+	BenchmarkProxyDeviceProxy.RegisterCallback(PostAdd, commonCallbackFunc, "PostAdd", BenchmarkProxyPLT.SetPostAddExecuted)
 
 	//// Register UPDATE instructions callbacks
-	BenchmarkProxy_DeviceProxy.RegisterCallback(PRE_UPDATE, commonCallbackFunc, "PRE_UPDATE", BenchmarkProxy_PLT.SetPreUpdateExecuted)
-	BenchmarkProxy_DeviceProxy.RegisterCallback(POST_UPDATE, commonCallbackFunc, "POST_UPDATE", BenchmarkProxy_PLT.SetPostUpdateExecuted)
+	BenchmarkProxyDeviceProxy.RegisterCallback(PreUpdate, commonCallbackFunc, "PreUpdate", BenchmarkProxyPLT.SetPreUpdateExecuted)
+	BenchmarkProxyDeviceProxy.RegisterCallback(PostUpdate, commonCallbackFunc, "PostUpdate", BenchmarkProxyPLT.SetPostUpdateExecuted)
 
 }
 
@@ -150,28 +151,28 @@
 			ltDevID := "0001" + hex.EncodeToString(ltDevIDBin)[:12]
 			ltDevice.Id = ltDevID
 
-			BenchmarkProxy_PLT.SetPreAddExecuted(false)
-			BenchmarkProxy_PLT.SetPostAddExecuted(false)
+			BenchmarkProxyPLT.SetPreAddExecuted(false)
+			BenchmarkProxyPLT.SetPostAddExecuted(false)
 
 			var added interface{}
 			// Add the device
-			if added, err = BenchmarkProxy_DeviceProxy.AddWithID(context.Background(), "/devices", ltDevID, ltDevice, ""); err != nil {
+			if added, err = BenchmarkProxyDeviceProxy.AddWithID(context.Background(), "/devices", ltDevID, ltDevice, ""); err != nil {
 				log.With(log.Fields{"error": err}).Fatal("Cannot create proxy")
 			}
 			if added == nil {
-				BenchmarkProxy_Logger.Errorf("Failed to add device: %+v", ltDevice)
+				BenchmarkProxyLogger.Errorf("Failed to add device: %+v", ltDevice)
 				continue
 			} else {
-				BenchmarkProxy_Logger.Infof("Device was added 1: %+v", added)
+				BenchmarkProxyLogger.Infof("Device was added 1: %+v", added)
 			}
 
-			BenchmarkProxy_PLT.addMutex.Lock()
-			BenchmarkProxy_PLT.addedDevices = append(BenchmarkProxy_PLT.addedDevices, added.(*voltha.Device).Id)
-			BenchmarkProxy_PLT.addMutex.Unlock()
+			BenchmarkProxyPLT.addMutex.Lock()
+			BenchmarkProxyPLT.addedDevices = append(BenchmarkProxyPLT.addedDevices, added.(*voltha.Device).Id)
+			BenchmarkProxyPLT.addMutex.Unlock()
 		}
 	})
 
-	BenchmarkProxy_Logger.Infof("Number of added devices : %d", len(BenchmarkProxy_PLT.addedDevices))
+	BenchmarkProxyLogger.Infof("Number of added devices : %d", len(BenchmarkProxyPLT.addedDevices))
 }
 
 func BenchmarkProxy_UpdateFirmware(b *testing.B) {
@@ -179,28 +180,28 @@
 		for pb.Next() {
 			//for i:=0; i < b.N; i++ {
 
-			if len(BenchmarkProxy_PLT.addedDevices) > 0 {
+			if len(BenchmarkProxyPLT.addedDevices) > 0 {
 				var target interface{}
-				randomID := BenchmarkProxy_PLT.addedDevices[rand.Intn(len(BenchmarkProxy_PLT.addedDevices))]
-				firmProxy, err := BenchmarkProxy_Root.node.CreateProxy(context.Background(), "/", false)
+				randomID := BenchmarkProxyPLT.addedDevices[rand.Intn(len(BenchmarkProxyPLT.addedDevices))]
+				firmProxy, err := BenchmarkProxyRoot.CreateProxy(context.Background(), "/", false)
 				if err != nil {
 					log.With(log.Fields{"error": err}).Fatal("Cannot create firmware proxy")
 				}
 				target, err = firmProxy.Get(context.Background(), "/devices/"+randomID, 0, false,
 					"")
 				if err != nil {
-					BenchmarkProxy_Logger.Errorf("Failed to create target due to error %v", err)
+					BenchmarkProxyLogger.Errorf("Failed to create target due to error %v", err)
 					assert.NotNil(b, err)
 				}
 				if !reflect.ValueOf(target).IsValid() {
-					BenchmarkProxy_Logger.Errorf("Failed to find device: %s %+v", randomID, target)
+					BenchmarkProxyLogger.Errorf("Failed to find device: %s %+v", randomID, target)
 					continue
 				}
 
-				BenchmarkProxy_PLT.SetPreUpdateExecuted(false)
-				BenchmarkProxy_PLT.SetPostUpdateExecuted(false)
-				firmProxy.RegisterCallback(PRE_UPDATE, commonCallbackFunc, "PRE_UPDATE", BenchmarkProxy_PLT.SetPreUpdateExecuted)
-				firmProxy.RegisterCallback(POST_UPDATE, commonCallbackFunc, "POST_UPDATE", BenchmarkProxy_PLT.SetPostUpdateExecuted)
+				BenchmarkProxyPLT.SetPreUpdateExecuted(false)
+				BenchmarkProxyPLT.SetPostUpdateExecuted(false)
+				firmProxy.RegisterCallback(PreUpdate, commonCallbackFunc, "PreUpdate", BenchmarkProxyPLT.SetPreUpdateExecuted)
+				firmProxy.RegisterCallback(PostUpdate, commonCallbackFunc, "PostUpdate", BenchmarkProxyPLT.SetPostUpdateExecuted)
 
 				var fwVersion int
 
@@ -217,83 +218,58 @@
 
 				var updated interface{}
 				if updated, err = firmProxy.Update(context.Background(), "/devices/"+randomID, target.(*voltha.Device), false, ""); err != nil {
-					BenchmarkProxy_Logger.Errorf("Failed to update firmware proxy due to error %v", err)
+					BenchmarkProxyLogger.Errorf("Failed to update firmware proxy due to error %v", err)
 					assert.NotNil(b, err)
 				}
 				if updated == nil {
-					BenchmarkProxy_Logger.Errorf("Failed to update device: %+v", target)
+					BenchmarkProxyLogger.Errorf("Failed to update device: %+v", target)
 					continue
 				} else {
-					BenchmarkProxy_Logger.Infof("Device was updated : %+v", updated)
+					BenchmarkProxyLogger.Infof("Device was updated : %+v", updated)
 
 				}
 
 				d, err := firmProxy.Get(context.Background(), "/devices/"+randomID, 0, false, "")
 				if err != nil {
-					BenchmarkProxy_Logger.Errorf("Failed to get device info from firmware proxy due to error %v", err)
+					BenchmarkProxyLogger.Errorf("Failed to get device info from firmware proxy due to error %v", err)
 					assert.NotNil(b, err)
 				}
 				if !reflect.ValueOf(d).IsValid() {
-					BenchmarkProxy_Logger.Errorf("Failed to get device: %s", randomID)
+					BenchmarkProxyLogger.Errorf("Failed to get device: %s", randomID)
 					continue
 				} else if d.(*voltha.Device).FirmwareVersion == after {
-					BenchmarkProxy_Logger.Infof("Imm Device was updated with new value: %s %+v", randomID, d)
+					BenchmarkProxyLogger.Infof("Imm Device was updated with new value: %s %+v", randomID, d)
 				} else if d.(*voltha.Device).FirmwareVersion == before {
-					BenchmarkProxy_Logger.Errorf("Imm Device kept old value: %s %+v %+v", randomID, d, target)
+					BenchmarkProxyLogger.Errorf("Imm Device kept old value: %s %+v %+v", randomID, d, target)
 				} else {
-					BenchmarkProxy_Logger.Errorf("Imm Device has unknown value: %s %+v %+v", randomID, d, target)
+					BenchmarkProxyLogger.Errorf("Imm Device has unknown value: %s %+v %+v", randomID, d, target)
 				}
 
-				BenchmarkProxy_PLT.firmwareMutex.Lock()
+				BenchmarkProxyPLT.firmwareMutex.Lock()
 
-				BenchmarkProxy_PLT.updatedFirmwares = append(
-					BenchmarkProxy_PLT.updatedFirmwares,
+				BenchmarkProxyPLT.updatedFirmwares = append(
+					BenchmarkProxyPLT.updatedFirmwares,
 					proxyLoadChanges{ID: randomID, Before: before, After: after},
 				)
-				BenchmarkProxy_PLT.firmwareMutex.Unlock()
+				BenchmarkProxyPLT.firmwareMutex.Unlock()
 			}
 		}
 	})
 }
 
-func traverseBranches(revision Revision, depth int) {
-	if revision == nil {
-		return
-	}
-	prefix := strconv.Itoa(depth) + " ~~~~ "
-	for i := 0; i < depth; i++ {
-		prefix += "  "
-	}
-
-	BenchmarkProxy_Logger.Debugf("%sRevision: %s %+v", prefix, revision.GetHash(), revision.GetData())
-
-	//for brIdx, brRev := range revision.GetBranch().Revisions {
-	//	BenchmarkProxy_Logger.Debugf("%sbranchIndex: %s", prefix, brIdx)
-	//	traverseBranches(brRev, depth+1)
-	//}
-	for childrenI, children := range revision.GetAllChildren() {
-		BenchmarkProxy_Logger.Debugf("%schildrenIndex: %s, length: %d", prefix, childrenI, len(children))
-
-		for _, subrev := range children {
-			//subrev.GetBranch().Latest
-			traverseBranches(subrev, depth+1)
-		}
-	}
-
-}
 func BenchmarkProxy_UpdateFlows(b *testing.B) {
 	b.RunParallel(func(pb *testing.PB) {
 		for pb.Next() {
-			if len(BenchmarkProxy_PLT.addedDevices) > 0 {
-				randomID := BenchmarkProxy_PLT.addedDevices[rand.Intn(len(BenchmarkProxy_PLT.addedDevices))]
+			if len(BenchmarkProxyPLT.addedDevices) > 0 {
+				randomID := BenchmarkProxyPLT.addedDevices[rand.Intn(len(BenchmarkProxyPLT.addedDevices))]
 
-				flowsProxy, err := BenchmarkProxy_Root.node.CreateProxy(context.Background(), "/devices/"+randomID+"/flows", false)
+				flowsProxy, err := BenchmarkProxyRoot.CreateProxy(context.Background(), "/devices/"+randomID+"/flows", false)
 				if err != nil {
 					log.With(log.Fields{"error": err}).Fatal("Cannot create flows proxy")
 				}
 				flows, err := flowsProxy.Get(context.Background(), "/", 0, false, "")
 				if err != nil {
-					BenchmarkProxy_Logger.Errorf("Failed to get flows from flows proxy due to error: %v", err)
+					BenchmarkProxyLogger.Errorf("Failed to get flows from flows proxy due to error: %v", err)
 					assert.NotNil(b, err)
 				}
 
@@ -302,30 +278,30 @@
 				after := flows.(*openflow_13.Flows).Items[0].TableId
 
 				flowsProxy.RegisterCallback(
-					PRE_UPDATE,
+					PreUpdate,
 					commonCallback2,
 				)
 				flowsProxy.RegisterCallback(
-					POST_UPDATE,
+					PostUpdate,
 					commonCallback2,
 				)
 
 				var updated interface{}
 				if updated, err = flowsProxy.Update(context.Background(), "/", flows.(*openflow_13.Flows), false, ""); err != nil {
-					BenchmarkProxy_Logger.Errorf("Cannot update flows proxy due to error: %v", err)
+					BenchmarkProxyLogger.Errorf("Cannot update flows proxy due to error: %v", err)
 					assert.NotNil(b, err)
 				}
 				if updated == nil {
 					b.Errorf("Failed to update flows for device: %+v", flows)
 				} else {
-					BenchmarkProxy_Logger.Infof("Flows were updated : %+v", updated)
+					BenchmarkProxyLogger.Infof("Flows were updated : %+v", updated)
 				}
-				BenchmarkProxy_PLT.flowMutex.Lock()
-				BenchmarkProxy_PLT.updatedFlows = append(
-					BenchmarkProxy_PLT.updatedFlows,
+				BenchmarkProxyPLT.flowMutex.Lock()
+				BenchmarkProxyPLT.updatedFlows = append(
+					BenchmarkProxyPLT.updatedFlows,
 					proxyLoadChanges{ID: randomID, Before: before, After: after},
 				)
-				BenchmarkProxy_PLT.flowMutex.Unlock()
+				BenchmarkProxyPLT.flowMutex.Unlock()
 			}
 		}
 	})
@@ -334,41 +310,41 @@
 func BenchmarkProxy_GetDevices(b *testing.B) {
 	//traverseBranches(BenchmarkProxy_DeviceProxy.Root.node.Branches[NONE].GetLatest(), 0)
 
-	for i := 0; i < len(BenchmarkProxy_PLT.addedDevices); i++ {
-		devToGet := BenchmarkProxy_PLT.addedDevices[i]
+	for i := 0; i < len(BenchmarkProxyPLT.addedDevices); i++ {
+		devToGet := BenchmarkProxyPLT.addedDevices[i]
 		// Verify that the added device can now be retrieved
-		d, err := BenchmarkProxy_DeviceProxy.Get(context.Background(), "/devices/"+devToGet, 0, false, "")
+		d, err := BenchmarkProxyDeviceProxy.Get(context.Background(), "/devices/"+devToGet, 0, false, "")
 		if err != nil {
-			BenchmarkProxy_Logger.Errorf("Failed to get device info from device proxy due to error: %v", err)
+			BenchmarkProxyLogger.Errorf("Failed to get device info from device proxy due to error: %v", err)
 			assert.NotNil(b, err)
 		}
 		if !reflect.ValueOf(d).IsValid() {
-			BenchmarkProxy_Logger.Errorf("Failed to get device: %s", devToGet)
+			BenchmarkProxyLogger.Errorf("Failed to get device: %s", devToGet)
 			continue
 		} else {
-			BenchmarkProxy_Logger.Infof("Got device: %s %+v", devToGet, d)
+			BenchmarkProxyLogger.Infof("Got device: %s %+v", devToGet, d)
 		}
 	}
 }
 
 func BenchmarkProxy_GetUpdatedFirmware(b *testing.B) {
-	for i := 0; i < len(BenchmarkProxy_PLT.updatedFirmwares); i++ {
-		devToGet := BenchmarkProxy_PLT.updatedFirmwares[i].ID
+	for i := 0; i < len(BenchmarkProxyPLT.updatedFirmwares); i++ {
+		devToGet := BenchmarkProxyPLT.updatedFirmwares[i].ID
 		// Verify that the updated device can be retrieved and that the updates were actually applied
-		d, err := BenchmarkProxy_DeviceProxy.Get(context.Background(), "/devices/"+devToGet, 0, false, "")
+		d, err := BenchmarkProxyDeviceProxy.Get(context.Background(), "/devices/"+devToGet, 0, false, "")
 		if err != nil {
-			BenchmarkProxy_Logger.Errorf("Failed to get device info from device proxy due to error: %v", err)
+			BenchmarkProxyLogger.Errorf("Failed to get device info from device proxy due to error: %v", err)
 			assert.NotNil(b, err)
 		}
 		if !reflect.ValueOf(d).IsValid() {
-			BenchmarkProxy_Logger.Errorf("Failed to get device: %s", devToGet)
+			BenchmarkProxyLogger.Errorf("Failed to get device: %s", devToGet)
 			continue
-		} else if d.(*voltha.Device).FirmwareVersion == BenchmarkProxy_PLT.updatedFirmwares[i].After.(string) {
-			BenchmarkProxy_Logger.Infof("Device was updated with new value: %s %+v", devToGet, d)
-		} else if d.(*voltha.Device).FirmwareVersion == BenchmarkProxy_PLT.updatedFirmwares[i].Before.(string) {
-			BenchmarkProxy_Logger.Errorf("Device kept old value: %s %+v %+v", devToGet, d, BenchmarkProxy_PLT.updatedFirmwares[i])
+		} else if d.(*voltha.Device).FirmwareVersion == BenchmarkProxyPLT.updatedFirmwares[i].After.(string) {
+			BenchmarkProxyLogger.Infof("Device was updated with new value: %s %+v", devToGet, d)
+		} else if d.(*voltha.Device).FirmwareVersion == BenchmarkProxyPLT.updatedFirmwares[i].Before.(string) {
+			BenchmarkProxyLogger.Errorf("Device kept old value: %s %+v %+v", devToGet, d, BenchmarkProxyPLT.updatedFirmwares[i])
 		} else {
-			BenchmarkProxy_Logger.Errorf("Device has unknown value: %s %+v %+v", devToGet, d, BenchmarkProxy_PLT.updatedFirmwares[i])
+			BenchmarkProxyLogger.Errorf("Device has unknown value: %s %+v %+v", devToGet, d, BenchmarkProxyPLT.updatedFirmwares[i])
 		}
 	}
 }