[VOL-3380] Functional area specific logging

Change-Id: I67414da013d8fc82827fcdb69d4f8a34040625d3
diff --git a/internal/pkg/omcitst/omci_test_request.go b/internal/pkg/omcitst/omci_test_request.go
new file mode 100755
index 0000000..33db828
--- /dev/null
+++ b/internal/pkg/omcitst/omci_test_request.go
@@ -0,0 +1,152 @@
+/*
+ * Copyright 2020-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 omcitst provides the omci test functionality
+package omcitst
+
+import (
+	"context"
+	"fmt"
+
+	gp "github.com/google/gopacket"
+	"github.com/opencord/omci-lib-go"
+	me "github.com/opencord/omci-lib-go/generated"
+	cmn "github.com/opencord/voltha-openonu-adapter-go/internal/pkg/common"
+
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+)
+
+//OmciTestRequest structure holds the information for the OMCI test
+type OmciTestRequest struct {
+	deviceID     string
+	pDevOmciCC   *cmn.OmciCC
+	started      bool
+	result       bool
+	exclusiveCc  bool
+	allowFailure bool
+	txSeqNo      uint16
+	verifyDone   chan<- bool
+}
+
+//NewOmciTestRequest returns a new instance of OmciTestRequest
+func NewOmciTestRequest(ctx context.Context,
+	deviceID string, omciCc *cmn.OmciCC,
+	exclusive bool, allowFailure bool) *OmciTestRequest {
+	logger.Debug(ctx, "OmciTestRequest-init")
+	var OmciTestRequest OmciTestRequest
+	OmciTestRequest.deviceID = deviceID
+	OmciTestRequest.pDevOmciCC = omciCc
+	OmciTestRequest.started = false
+	OmciTestRequest.result = false
+	OmciTestRequest.exclusiveCc = exclusive
+	OmciTestRequest.allowFailure = allowFailure
+
+	return &OmciTestRequest
+}
+
+// PerformOmciTest - TODO: add comment
+func (oo *OmciTestRequest) PerformOmciTest(ctx context.Context, execChannel chan<- bool) {
+	logger.Debug(ctx, "OmciTestRequest-start-test")
+
+	if oo.pDevOmciCC != nil {
+		oo.verifyDone = execChannel
+		// test functionality is limited to ONU-2G get request for the moment
+		// without yet checking the received response automatically here (might be improved ??)
+		tid := oo.pDevOmciCC.GetNextTid(false)
+		onu2gBaseGet, _ := oo.createOnu2gBaseGet(ctx, tid)
+		omciRxCallbackPair := cmn.CallbackPair{
+			CbKey: tid,
+			CbEntry: cmn.CallbackPairEntry{
+				CbRespChannel: nil,
+				CbFunction:    oo.ReceiveOmciVerifyResponse,
+				FramePrint:    true,
+			},
+		}
+
+		logger.Debugw(ctx, "performOmciTest-start sending frame", log.Fields{"for device-id": oo.deviceID})
+		// send with default timeout and normal prio
+		// Note: No reference to fetch the OMCI timeout value from configuration, so hardcode it to 10s
+		go oo.pDevOmciCC.Send(ctx, onu2gBaseGet, 10, cmn.CDefaultRetries, false, omciRxCallbackPair)
+
+	} else {
+		logger.Errorw(ctx, "performOmciTest: Device does not exist", log.Fields{"for device-id": oo.deviceID})
+	}
+}
+
+// these are OMCI related functions, could/should be collected in a separate file? TODO!!!
+// for a simple start just included in here
+//basic approach copied from bbsim, cmp /devices/onu.go and /internal/common/omci/mibpackets.go
+func (oo *OmciTestRequest) createOnu2gBaseGet(ctx context.Context, tid uint16) ([]byte, error) {
+
+	request := &omci.GetRequest{
+		MeBasePacket: omci.MeBasePacket{
+			EntityClass:    me.Onu2GClassID,
+			EntityInstance: 0, //there is only the 0 instance of ONU2-G (still hard-coded - TODO!!!)
+		},
+		AttributeMask: 0xE000, //example hardcoded (TODO!!!) request EquId, OmccVersion, VendorCode
+	}
+
+	oo.txSeqNo = tid
+	pkt, err := cmn.Serialize(ctx, omci.GetRequestType, request, tid)
+	if err != nil {
+		//omciLogger.WithFields(log.Fields{ ...
+		logger.Errorw(ctx, "Cannot serialize Onu2-G GetRequest", log.Fields{"device-id": oo.deviceID, "Err": err})
+		return nil, err
+	}
+	// hexEncode would probably work as well, but not needed and leads to wrong logs on OltAdapter frame
+	//	return hexEncode(pkt)
+	return pkt, nil
+}
+
+//ReceiveOmciVerifyResponse supply a response handler - in this testobject the message is evaluated directly, no response channel used
+func (oo *OmciTestRequest) ReceiveOmciVerifyResponse(ctx context.Context, omciMsg *omci.OMCI, packet *gp.Packet, respChan chan cmn.Message) error {
+
+	logger.Debugw(ctx, "verify-omci-message-response received:", log.Fields{"omciMsgType": omciMsg.MessageType,
+		"transCorrId": omciMsg.TransactionID, "DeviceIdent": omciMsg.DeviceIdentifier})
+
+	if omciMsg.TransactionID == oo.txSeqNo {
+		logger.Debugw(ctx, "verify-omci-message-response", log.Fields{"correct TransCorrId": omciMsg.TransactionID})
+	} else {
+		logger.Debugw(ctx, "verify-omci-message-response error", log.Fields{"incorrect TransCorrId": omciMsg.TransactionID,
+			"expected": oo.txSeqNo})
+		oo.verifyDone <- false
+		return fmt.Errorf("unexpected TransCorrId %s", oo.deviceID)
+	}
+	if omciMsg.MessageType == omci.GetResponseType {
+		logger.Debugw(ctx, "verify-omci-message-response", log.Fields{"correct RespType": omciMsg.MessageType})
+	} else {
+		logger.Debugw(ctx, "verify-omci-message-response error", log.Fields{"incorrect RespType": omciMsg.MessageType,
+			"expected": omci.GetResponseType})
+		oo.verifyDone <- false
+		return fmt.Errorf("unexpected MessageType %s", oo.deviceID)
+	}
+
+	//TODO!!! further tests on the payload should be done here ...
+
+	oo.pDevOmciCC.RLockMutexMonReq()
+	if _, exist := oo.pDevOmciCC.GetMonitoredRequest(omciMsg.TransactionID); exist {
+		oo.pDevOmciCC.SetChMonitoredRequest(omciMsg.TransactionID, true)
+	} else {
+		logger.Infow(ctx, "reqMon: map entry does not exist!",
+			log.Fields{"tid": omciMsg.TransactionID, "device-id": oo.deviceID})
+	}
+	oo.pDevOmciCC.RUnlockMutexMonReq()
+
+	oo.result = true
+	oo.verifyDone <- true
+
+	return nil
+}