From c9df869a1ebfa901d9538b44b795c0af113dcc6b Mon Sep 17 00:00:00 2001
From: Malte Bauch <malte.bauch@extern.h-da.de>
Date: Mon, 18 Jul 2022 14:04:11 +0200
Subject: [PATCH] Added callback function to gnmitarget

---
 gnmitarget/callback.go | 32 ++++++++++++++++++++++++++++++++
 gnmitarget/target.go   |  7 +------
 2 files changed, 33 insertions(+), 6 deletions(-)
 create mode 100644 gnmitarget/callback.go

diff --git a/gnmitarget/callback.go b/gnmitarget/callback.go
new file mode 100644
index 0000000..83a6067
--- /dev/null
+++ b/gnmitarget/callback.go
@@ -0,0 +1,32 @@
+package gnmitarget
+
+import (
+	"fmt"
+
+	"code.fbi.h-da.de/danet/gnmi-target/modeldata/gnmitargetygot"
+	"github.com/openconfig/ygot/ygot"
+)
+
+func callbackFunc(config ygot.ValidatedGoStruct) error {
+	conf, ok := config.(*gnmitargetygot.Gnmitarget)
+	if !ok {
+		return fmt.Errorf("failed type assertion for %T", (*gnmitargetygot.Gnmitarget)(nil))
+	}
+
+	walkThroughSystem(conf.GetSystem())
+	walkThroughInterfaces(conf.GetInterfaces())
+	walkThroughNetworkInstances(conf.GetNetworkInstances())
+	return nil
+}
+
+func walkThroughSystem(system *gnmitargetygot.OpenconfigSystem_System) error {
+	return nil
+}
+
+func walkThroughInterfaces(interfaces *gnmitargetygot.OpenconfigInterfaces_Interfaces) error {
+	return nil
+}
+
+func walkThroughNetworkInstances(system *gnmitargetygot.OpenconfigNetworkInstance_NetworkInstances) error {
+	return nil
+}
diff --git a/gnmitarget/target.go b/gnmitarget/target.go
index e6873ce..adc1b0f 100644
--- a/gnmitarget/target.go
+++ b/gnmitarget/target.go
@@ -18,7 +18,6 @@ import (
 	"code.fbi.h-da.de/danet/gnmi-target/modeldata/gnmitargetygot"
 
 	pbGNMI "github.com/openconfig/gnmi/proto/gnmi"
-	"github.com/openconfig/ygot/ygot"
 	log "github.com/sirupsen/logrus"
 )
 
@@ -80,7 +79,7 @@ func (gt *GnmiTarget) Start(bindAddress string) error {
 		}
 	}
 
-	gnmiServer, err := gnmiserver.NewServer(gnmiModel, gt.os.GetConfig(), gt.callbackFunc)
+	gnmiServer, err := gnmiserver.NewServer(gnmiModel, gt.os.GetConfig(), callbackFunc)
 	if err != nil {
 		log.Fatalf("error in creating GNMI target: %v", err)
 	}
@@ -107,7 +106,3 @@ func (gt *GnmiTarget) Start(bindAddress string) error {
 
 	return nil
 }
-
-func (gt GnmiTarget) callbackFunc(config ygot.ValidatedGoStruct) error {
-	return nil
-}
-- 
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