1 files changed, 57 insertions, 0 deletions
diff --git a/pkg/kafkacomm/handler/pdp_state_change_handler.go b/pkg/kafkacomm/handler/pdp_state_change_handler.go
new file mode 100644
index 0000000..32d998f
--- /dev/null
+++ b/pkg/kafkacomm/handler/pdp_state_change_handler.go
@@ -0,0 +1,57 @@
+// -
+//   ========================LICENSE_START=================================
+//   Copyright (C) 2024: Deutsche Telecom
+//
+//   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.
+//   ========================LICENSE_END===================================
+
+// will process the state change message from pap and send the pdp status response.
+package handler
+
+import (
+	"encoding/json"
+	"policy-opa-pdp/pkg/kafkacomm/publisher"
+	"policy-opa-pdp/pkg/log"
+	"policy-opa-pdp/pkg/model"
+	"policy-opa-pdp/pkg/pdpstate"
+)
+
+// Processes incoming messages indicating a PDP state change.
+// This includes updating the PDP state and sending a status response when the state transitions.
+func PdpStateChangeMessageHandler(message []byte, p publisher.PdpStatusSender) error {
+
+	var pdpStateChange model.PdpStateChange
+
+	err := json.Unmarshal(message, &pdpStateChange)
+	if err != nil {
+		log.Debugf("Failed to UnMarshal Messages: %v\n", err)
+		return err
+	}
+
+	log.Debugf("PDP STATE CHANGE message received: %s", string(message))
+
+	if pdpStateChange.State != "" {
+		pdpstate.SetState(pdpStateChange.State)
+
+	}
+
+	log.Debugf("State change from PASSIVE To : %s", pdpstate.GetState())
+	err = publisher.SendStateChangeResponse(p, &pdpStateChange)
+	if err != nil {
+		log.Debugf("Failed to Send State Change Response Message: %v\n", err)
+		return err
+	}
+	log.Infof("PDP_STATUS With State Change Message Sent Successfully")
+
+	return nil
+}