Refactor SupportedIfCapability usage
[transportpce.git] / common / src / main / java / org / opendaylight / transportpce / common / mapping / PortMappingVersion121.java
index c3e5a744a5c17632e9e5b341f6b58e4946868a85..aea5d098ff51fa945797e6573d63c5b9284530a4 100644 (file)
@@ -10,7 +10,6 @@ package org.opendaylight.transportpce.common.mapping;
 
 import com.google.common.util.concurrent.FluentFuture;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -19,10 +18,10 @@ import java.util.Locale;
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Optional;
+import java.util.Set;
 import java.util.concurrent.ExecutionException;
 import java.util.stream.Collectors;
 import org.eclipse.jdt.annotation.NonNull;
-import org.eclipse.jdt.annotation.Nullable;
 import org.opendaylight.mdsal.binding.api.DataBroker;
 import org.opendaylight.mdsal.binding.api.WriteTransaction;
 import org.opendaylight.mdsal.common.api.CommitInfo;
@@ -30,22 +29,20 @@ import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.transportpce.common.StringConstants;
 import org.opendaylight.transportpce.common.Timeouts;
 import org.opendaylight.transportpce.common.device.DeviceTransactionManager;
-import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaceException;
-import org.opendaylight.transportpce.common.openroadminterfaces.OpenRoadmInterfaces;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.Network;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.NetworkBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.Nodes;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.NodesBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.NodesKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.CpToDegree;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.CpToDegreeBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.CpToDegreeKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.Mapping;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.MappingBuilder;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.MappingKey;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.NodeInfo;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.NodeInfo.OpenroadmVersion;
-import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev210310.network.nodes.NodeInfoBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.Network;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.NetworkBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.OpenroadmNodeVersion;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.cp.to.degree.CpToDegree;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.cp.to.degree.CpToDegreeBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.cp.to.degree.CpToDegreeKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.Mapping;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.MappingBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.mapping.MappingKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.Nodes;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.NodesBuilder;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.NodesKey;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.nodes.NodeInfo;
+import org.opendaylight.yang.gen.v1.http.org.opendaylight.transportpce.portmapping.rev220316.network.nodes.NodeInfoBuilder;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.types.rev161014.Direction;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.CircuitPack;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.Port;
@@ -67,12 +64,17 @@ import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.open
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.org.openroadm.device.container.org.openroadm.device.connection.map.Destination;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.port.Interfaces;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.device.types.rev191129.NodeTypes;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.device.types.rev191129.XpdrNodeTypes;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.EthernetCsmacd;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.InterfaceType;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OpenROADMOpticalMultiplex;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OpticalTransport;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OtnOdu;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.interfaces.rev161014.OtnOtu;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.Protocols1;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.Lldp;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.lldp.rev161014.lldp.container.lldp.PortConfig;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev170929.SupportedIfCapability;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.common.Uint16;
 import org.opendaylight.yangtools.yang.common.Uint32;
@@ -86,10 +88,10 @@ public class PortMappingVersion121 {
 
     private static final Logger LOG = LoggerFactory.getLogger(PortMappingVersion121.class);
     private static final Map<Direction, String> SUFFIX;
+    private static final Set<Integer> TXRX_SET = Set.of(Direction.Tx.getIntValue(), Direction.Rx.getIntValue());
 
     private final DataBroker dataBroker;
     private final DeviceTransactionManager deviceTransactionManager;
-    private final OpenRoadmInterfaces openRoadmInterfaces;
 
     static {
         SUFFIX =  Map.of(
@@ -98,21 +100,19 @@ public class PortMappingVersion121 {
             Direction.Bidirectional, "TXRX");
     }
 
-    public PortMappingVersion121(DataBroker dataBroker, DeviceTransactionManager deviceTransactionManager,
-        OpenRoadmInterfaces openRoadmInterfaces) {
+    public PortMappingVersion121(DataBroker dataBroker, DeviceTransactionManager deviceTransactionManager) {
         this.dataBroker = dataBroker;
         this.deviceTransactionManager = deviceTransactionManager;
-        this.openRoadmInterfaces = openRoadmInterfaces;
     }
 
     public boolean createMappingData(String nodeId) {
-        LOG.info("{} : OpenROADM version 1.2.1 node - Creating Mapping Data", nodeId);
+        LOG.info(PortMappingUtils.CREATE_MAPPING_DATA_LOGMSG, nodeId, "1.2.1");
         List<Mapping> portMapList = new ArrayList<>();
         InstanceIdentifier<Info> infoIID = InstanceIdentifier.create(OrgOpenroadmDevice.class).child(Info.class);
         Optional<Info> deviceInfoOptional = this.deviceTransactionManager.getDataFromDevice(nodeId, LogicalDatastoreType
             .OPERATIONAL, infoIID, Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-        if (!deviceInfoOptional.isPresent()) {
-            LOG.warn("{} : Device info subtree is absent", nodeId);
+        if (deviceInfoOptional.isEmpty()) {
+            LOG.warn(PortMappingUtils.DEVICE_HAS_LOGMSG, nodeId, "no info", "subtree");
             return false;
         }
         Info deviceInfo = deviceInfoOptional.get();
@@ -128,25 +128,26 @@ public class PortMappingVersion121 {
                 // Get TTP port mapping
                 if (!createTtpPortMapping(nodeId, deviceInfo, portMapList)) {
                     // return false if mapping creation for TTP's failed
-                    LOG.warn("{} : Unable to create mapping for TTP's", nodeId);
+                    LOG.warn(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, PortMappingUtils.CREATE, "TTP's");
                     return false;
                 }
 
                 // Get PP port mapping
                 if (!createPpPortMapping(nodeId, deviceInfo, portMapList)) {
                     // return false if mapping creation for PP's failed
-                    LOG.warn("{} : Unable to create mapping for PP's", nodeId);
+                    LOG.warn(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, PortMappingUtils.CREATE, "PP's");
                     return false;
                 }
                 break;
             case Xpdr:
                 if (!createXpdrPortMapping(nodeId, portMapList)) {
-                    LOG.warn("{} : Unable to create mapping for Xponder", nodeId);
+                    LOG.warn(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, PortMappingUtils.CREATE, "Xponder");
                     return false;
                 }
                 break;
             default:
-                LOG.error("{} : unknown nodetype - Unable to create mapping", nodeId);
+                LOG.error(PortMappingUtils.UNABLE_MAPPING_LOGMSG,
+                    nodeId, PortMappingUtils.CREATE, deviceInfo.getNodeType() + " - unknown nodetype");
                 break;
 
         }
@@ -154,25 +155,23 @@ public class PortMappingVersion121 {
     }
 
     public boolean updateMapping(String nodeId, Mapping oldMapping) {
-        InstanceIdentifier<Ports> portIId = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-            .child(CircuitPacks.class, new CircuitPacksKey(oldMapping.getSupportingCircuitPackName()))
-            .child(Ports.class, new PortsKey(oldMapping.getSupportingPort()));
-        if ((oldMapping == null) || (nodeId == null)) {
-            LOG.error("Impossible to update mapping");
+        if (nodeId == null) {
+            LOG.error(PortMappingUtils.UNABLE_MAPPING_LOGMSG, "node id null" , PortMappingUtils.UPDATE, "a null value");
             return false;
         }
+        if (oldMapping == null) {
+            LOG.error(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, PortMappingUtils.UPDATE, "a null value");
+            return false;
+        }
+        InstanceIdentifier<Ports> portId = InstanceIdentifier.create(OrgOpenroadmDevice.class)
+            .child(CircuitPacks.class, new CircuitPacksKey(oldMapping.getSupportingCircuitPackName()))
+            .child(Ports.class, new PortsKey(oldMapping.getSupportingPort()));
         try {
-            Optional<Ports> portObject = deviceTransactionManager.getDataFromDevice(nodeId,
-                LogicalDatastoreType.OPERATIONAL, portIId, Timeouts.DEVICE_READ_TIMEOUT,
-                Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-            if (!portObject.isPresent()) {
-                return false;
-            }
-            Ports port = portObject.get();
-            Mapping newMapping = createMappingObject(nodeId, port, oldMapping.getSupportingCircuitPackName(),
-                oldMapping.getLogicalConnectionPoint());
-            LOG.debug("{} : Updating old mapping Data {} for {} by new mapping data {}",
-                    nodeId, oldMapping, oldMapping.getLogicalConnectionPoint(), newMapping);
+            Ports port = deviceTransactionManager.getDataFromDevice(nodeId, LogicalDatastoreType.OPERATIONAL,
+                portId, Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT).get();
+            Mapping newMapping = updateMappingObject(nodeId, port, oldMapping);
+            LOG.debug(PortMappingUtils.UPDATE_MAPPING_LOGMSG,
+                nodeId, oldMapping, oldMapping.getLogicalConnectionPoint(), newMapping);
             final WriteTransaction writeTransaction = this.dataBroker.newWriteOnlyTransaction();
             InstanceIdentifier<Mapping> mapIID = InstanceIdentifier.create(Network.class)
                 .child(Nodes.class, new NodesKey(nodeId))
@@ -182,8 +181,8 @@ public class PortMappingVersion121 {
             commit.get();
             return true;
         } catch (InterruptedException | ExecutionException e) {
-            LOG.error("{} : exception when updating Mapping {} - ",
-                    nodeId, oldMapping.getLogicalConnectionPoint(), e);
+            LOG.error(PortMappingUtils.UNABLE_MAPPING_LOGMSG,
+                nodeId, PortMappingUtils.UPDATE, oldMapping.getLogicalConnectionPoint(), e);
             return false;
         }
     }
@@ -194,13 +193,13 @@ public class PortMappingVersion121 {
         Optional<OrgOpenroadmDevice> deviceObject = deviceTransactionManager.getDataFromDevice(nodeId,
             LogicalDatastoreType.OPERATIONAL, deviceIID,
             Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-        if (!deviceObject.isPresent()) {
-            LOG.error("{} : Impossible to get device configuration", nodeId);
+        if (deviceObject.isEmpty()) {
+            LOG.error(PortMappingUtils.CANNOT_GET_DEV_CONF_LOGMSG, nodeId);
             return false;
         }
         OrgOpenroadmDevice device = deviceObject.get();
         if (device.getCircuitPacks() == null) {
-            LOG.warn("{} : Circuit Packs not present", nodeId);
+            LOG.warn(PortMappingUtils.MISSING_CP_LOGMSG, nodeId, PortMappingUtils.FOUND);
             return false;
         }
         // Variable to keep track of number of line ports
@@ -215,11 +214,9 @@ public class PortMappingVersion121 {
         for (CircuitPacks cp : circuitPackList) {
             String circuitPackName = cp.getCircuitPackName();
             if (cp.getPorts() == null) {
-                LOG.warn("{} : Ports were not found for circuit pack {}", nodeId, circuitPackName);
+                LOG.warn(PortMappingUtils.NO_PORT_ON_CP_LOGMSG, nodeId, PortMappingUtils.FOUND, circuitPackName);
                 continue;
             }
-
-            // com.google.common.collect.ImmutableList implementation of List
             List<Ports> portList = new ArrayList<>(cp.nonnullPorts().values());
             portList.sort(Comparator.comparing(Ports::getPortName));
             for (Ports port : portList) {
@@ -231,59 +228,42 @@ public class PortMappingVersion121 {
             }
         }
 
-        Collection<ConnectionMap> connectionMap = deviceObject.get().nonnullConnectionMap().values();
-        for (ConnectionMap cm : connectionMap) {
+        for (ConnectionMap cm : deviceObject.get().nonnullConnectionMap().values()) {
             String skey = cm.getSource().getCircuitPackName() + "+" + cm.getSource().getPortName();
-            String slcp = lcpMap.containsKey(skey) ? lcpMap.get(skey) : null;
             Destination destination0 = cm.nonnullDestination().values().iterator().next();
             String dkey = destination0.getCircuitPackName() + "+" + destination0.getPortName();
-            if (slcp == null) {
-                LOG.error("{} : Error in connection-map analysis for source {} and destination (CP+port) {}",
-                    nodeId, skey, dkey);
+            if (!lcpMap.containsKey(skey)) {
+                LOG.error(PortMappingUtils.CONMAP_ISSUE_LOGMSG, nodeId, skey, dkey);
                 continue;
             }
-            String dlcp = lcpMap.containsKey(dkey) ? lcpMap.get(dkey) : null;
+            String slcp = lcpMap.get(skey);
             Mapping mapping = mappingMap.get(slcp);
             mappingMap.remove(slcp);
-            portMapList.add(createXpdrMappingObject(nodeId, null, null, null, null, mapping, dlcp));
+            portMapList.add(createXpdrMappingObject(nodeId, null, null, null, null, mapping,
+                //dlcp
+                lcpMap.containsKey(dkey) ? lcpMap.get(dkey) : null));
         }
 
-        if (!mappingMap.isEmpty()) {
-            for (Mapping m : mappingMap.values()) {
-                portMapList.add(m);
-            }
-        }
+        mappingMap.forEach((k,v) -> portMapList.add(v));
         return true;
     }
 
     private boolean checkPartnerPortNotNull(Ports port) {
-        if (port.getPartnerPort() == null
-            || port.getPartnerPort().getCircuitPackName() == null
-            || port.getPartnerPort().getPortName() == null) {
-            return false;
-        }
-        return true;
+        return (port.getPartnerPort() != null
+            && port.getPartnerPort().getCircuitPackName() != null
+            && port.getPartnerPort().getPortName() != null);
     }
 
     private boolean checkPartnerPortNoDir(String circuitPackName, Ports port1, Ports port2) {
-        if (!checkPartnerPortNotNull(port2)
-            || !port2.getPartnerPort().getCircuitPackName().equals(circuitPackName)
-            || !port2.getPartnerPort().getPortName().equals(port1.getPortName())) {
-            return false;
-        }
-        return true;
+        return (checkPartnerPortNotNull(port2)
+            && port2.getPartnerPort().getCircuitPackName().equals(circuitPackName)
+            && port2.getPartnerPort().getPortName().equals(port1.getPortName()));
     }
 
     private boolean checkPartnerPort(String circuitPackName, Ports port1, Ports port2) {
-        if (!checkPartnerPortNoDir(circuitPackName, port1, port2)
-            || ((Direction.Rx.getIntValue() != port1.getPortDirection().getIntValue()
-                    || Direction.Tx.getIntValue() != port2.getPortDirection().getIntValue())
-                &&
-                (Direction.Tx.getIntValue() != port1.getPortDirection().getIntValue()
-                    || Direction.Rx.getIntValue() != port2.getPortDirection().getIntValue()))) {
-            return false;
-        }
-        return true;
+        return checkPartnerPortNoDir(circuitPackName, port1, port2)
+            && Set.of(port1.getPortDirection().getIntValue(), port2.getPortDirection().getIntValue())
+                .equals(TXRX_SET);
     }
 
     private HashMap<Integer, List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg
@@ -296,7 +276,7 @@ public class PortMappingVersion121 {
         for (int srgCounter = 1; srgCounter <= maxSrg; srgCounter++) {
             List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks> srgCps
                 = new ArrayList<>();
-            LOG.debug("{} : Getting Circuitpacks for Srg Number {}", deviceId, srgCounter);
+            LOG.debug(PortMappingUtils.GETTING_CP_LOGMSG, deviceId, srgCounter);
             InstanceIdentifier<SharedRiskGroup> srgIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
                 .child(SharedRiskGroup.class, new SharedRiskGroupKey(Uint16.valueOf(srgCounter)));
             Optional<SharedRiskGroup> ordmSrgObject = this.deviceTransactionManager.getDataFromDevice(deviceId,
@@ -307,104 +287,52 @@ public class PortMappingVersion121 {
                 cpPerSrg.put(ordmSrgObject.get().getSrgNumber().toJava(), srgCps);
             }
         }
-        LOG.info("{} : Device has {} Srg", deviceId, cpPerSrg.size());
+        LOG.info(PortMappingUtils.DEVICE_HAS_LOGMSG, deviceId, cpPerSrg.size(), "SRG");
         return cpPerSrg;
     }
 
     private boolean createPpPortMapping(String nodeId, Info deviceInfo, List<Mapping> portMapList) {
         // Creating mapping data for SRG's PP
-        HashMap<Integer, List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks>> srgCps
-            = getSrgCps(nodeId, deviceInfo);
-
         for (Entry<Integer, List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks>>
-                srgCpEntry : srgCps.entrySet()) {
-            List<org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks> cpList =
-                srgCps.get(srgCpEntry.getKey());
+                srgCpEntry : getSrgCps(nodeId, deviceInfo).entrySet()) {
             List<String> keys = new ArrayList<>();
-            for (org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks cp : cpList) {
+            int portIndex = 1;
+            for (org.opendaylight.yang.gen.v1.http.org.openroadm.device.rev170206.srg.CircuitPacks
+                    cp : srgCpEntry.getValue()) {
                 String circuitPackName = cp.getCircuitPackName();
-                InstanceIdentifier<CircuitPacks> cpIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                    .child(CircuitPacks.class, new CircuitPacksKey(circuitPackName));
-                Optional<CircuitPacks> circuitPackObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
-                    LogicalDatastoreType.OPERATIONAL, cpIID,
-                    Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-
-                if (!circuitPackObject.isPresent() || (circuitPackObject.get().getPorts() == null)) {
-                    LOG.warn("{} : Circuit pack {} not found or without ports.", nodeId, circuitPackName);
-                    continue;
-                }
-                // com.google.common.collect.ImmutableList implementation of List
-                @Nullable
-                List<Ports> portList = new ArrayList<>(circuitPackObject.get().nonnullPorts().values());
+                List<Ports> portList = getPortList(circuitPackName, nodeId);
                 Collections.sort(portList, new SortPort121ByName());
-                int portIndex = 1;
                 for (Ports port : portList) {
-                    String currentKey = circuitPackName + "-" + port.getPortName();
-                    if (port.getPortQual() == null) {
+                    if (!checkPortQual(port, circuitPackName, nodeId)) {
                         continue;
                     }
-
-                    if (Port.PortQual.RoadmExternal.getIntValue() != port.getPortQual().getIntValue()) {
-                        LOG.debug("{} : port {} on {} is not roadm-external - cannot assign logicalConnectionPoint.",
-                                nodeId, port.getPortName(), circuitPackName);
-                        continue;
-                    }
-
+                    String currentKey = circuitPackName + "-" + port.getPortName();
                     if (keys.contains(currentKey)) {
-                        LOG.debug("{} : port {} on {} has already been handled - cannot assign logicalConnectionPoint.",
-                                nodeId, port.getPortName(), circuitPackName);
+                        LOG.debug(PortMappingUtils.PORT_ALREADY_HANDLED_LOGMSG + PortMappingUtils.CANNOT_AS_LCP_LOGMSG,
+                            nodeId, port.getPortName(), circuitPackName);
                         continue;
                     }
-
                     switch (port.getPortDirection()) {
-
                         case Bidirectional:
                             String lcp = createLogicalConnectionPort(port, srgCpEntry.getKey(), portIndex);
-                            LOG.info("{} : port {} on {} - associated Logical Connection Point is {}",
-                                    nodeId, port.getPortName(), circuitPackName, lcp);
+                            LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                                nodeId, port.getPortName(), circuitPackName, lcp);
                             portMapList.add(createMappingObject(nodeId, port, circuitPackName, lcp));
                             portIndex++;
                             keys.add(currentKey);
                             break;
-
                         case Rx:
                         case Tx:
-                            if (!checkPartnerPortNotNull(port)) {
-                                LOG.info("{} : port {} on {} is unidirectional but has no valid partnerPort"
-                                        + " - cannot assign  logicalConnectionPoint.",
-                                        nodeId, port.getPortName(), circuitPackName);
+                            Ports port2 = getPartnerPort(port, circuitPackName, nodeId);
+                            if (port2 == null) {
                                 continue;
                             }
-
                             String lcp1 = createLogicalConnectionPort(port, srgCpEntry.getKey(), portIndex);
-                            LOG.info("{} :  port {} on {} - associated Logical Connection Point is {}",
-                                    nodeId, port.getPortName(), circuitPackName, lcp1);
-                            InstanceIdentifier<Ports> port2ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                                .child(CircuitPacks.class,
-                                    new CircuitPacksKey(port.getPartnerPort().getCircuitPackName()))
-                                .child(Ports.class, new PortsKey(port.getPartnerPort().getPortName().toString()));
-                            Optional<Ports> port2Object = this.deviceTransactionManager
-                                .getDataFromDevice(nodeId, LogicalDatastoreType.OPERATIONAL, port2ID,
-                                    Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-                            if (!port2Object.isPresent()
-                                || port2Object.get().getPortQual().getIntValue()
-                                    != Port.PortQual.RoadmExternal.getIntValue()) {
-                                LOG.error("{} : port {} on {} - error getting partner",
-                                        nodeId, port.getPartnerPort().getPortName().toString(),
-                                        port.getPartnerPort().getCircuitPackName());
-                                continue;
-                            }
-
-                            Ports port2 = port2Object.get();
-                            if (!checkPartnerPort(circuitPackName, port, port2)) {
-                                LOG.error("{} : port {} on {} - Error with partner port configuration",
-                                        nodeId, port.getPortName(), circuitPackName);
-                                portIndex++;
-                                continue;
-                            }
+                            LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                                nodeId, port.getPortName(), circuitPackName, lcp1);
                             String lcp2 = createLogicalConnectionPort(port2, srgCpEntry.getKey(),portIndex);
-                            LOG.info("{} : port {} on {} - associated Logical Connection Point is {}",
-                                    nodeId, port2.getPortName(), circuitPackName, lcp2);
+                            LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                                nodeId, port2.getPortName(), circuitPackName, lcp2);
                             portMapList.add(createMappingObject(nodeId, port, circuitPackName, lcp1));
                             portMapList.add(
                                 createMappingObject(nodeId ,port2, port.getPartnerPort().getCircuitPackName(), lcp2));
@@ -412,12 +340,9 @@ public class PortMappingVersion121 {
                             keys.add(currentKey);
                             keys.add(port.getPartnerPort().getCircuitPackName() + "-" + port2.getPortName());
                             break;
-
                         default:
-                            LOG.error("{} : port {} on {} - unsupported Direction {}"
-                                    + " - cannot assign  logicalConnectionPoint.",
-                                    nodeId, port.getPortName(), circuitPackName, port.getPortDirection());
-
+                            LOG.error(PortMappingUtils.UNSUPPORTED_DIR_LOGMSG + PortMappingUtils.CANNOT_AS_LCP_LOGMSG,
+                                nodeId, port.getPortName(), circuitPackName, port.getPortDirection());
                     }
                 }
             }
@@ -425,21 +350,64 @@ public class PortMappingVersion121 {
         return true;
     }
 
+    private Ports getPartnerPort(Ports port, String circuitPackName, String nodeId) {
+        if (!checkPartnerPortNotNull(port)) {
+            LOG.info(PortMappingUtils.NO_VALID_PARTNERPORT_LOGMSG + PortMappingUtils.CANNOT_AS_LCP_LOGMSG,
+                nodeId, port.getPortName(), circuitPackName);
+            return null;
+        }
+        InstanceIdentifier<Ports> port2ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
+            .child(CircuitPacks.class, new CircuitPacksKey(port.getPartnerPort().getCircuitPackName()))
+            .child(Ports.class, new PortsKey(port.getPartnerPort().getPortName()));
+        Optional<Ports> port2Object = this.deviceTransactionManager
+            .getDataFromDevice(nodeId, LogicalDatastoreType.OPERATIONAL, port2ID,
+                Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
+        if (port2Object.isEmpty()
+                || port2Object.get().getPortQual().getIntValue() != Port.PortQual.RoadmExternal.getIntValue()) {
+            LOG.error(PortMappingUtils.NOT_CORRECT_PARTNERPORT_LOGMSG + PortMappingUtils.PARTNERPORT_GET_ERROR_LOGMSG,
+                nodeId, port.getPartnerPort().getPortName(), port.getPartnerPort().getCircuitPackName(),
+                port.getPortName(), circuitPackName);
+            return null;
+        }
+        Ports port2 = port2Object.get();
+        if (!checkPartnerPort(circuitPackName, port, port2)) {
+            LOG.error(PortMappingUtils.NOT_CORRECT_PARTNERPORT_LOGMSG + PortMappingUtils.PARTNERPORT_CONF_ERROR_LOGMSG,
+                nodeId, port2.getPortName(), port.getPartnerPort().getCircuitPackName(),
+                port.getPortName(), circuitPackName);
+            //TODO check if we really needed to increment portIndex in this condition
+            //     if yes this block should not be in getPartnerPort and must move back to createPpPortMapping
+            return null;
+        }
+        return port2;
+    }
+
+    private List<Ports> getPortList(String circuitPackName, String nodeId) {
+        InstanceIdentifier<CircuitPacks> cpIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
+            .child(CircuitPacks.class, new CircuitPacksKey(circuitPackName));
+        Optional<CircuitPacks> circuitPackObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
+             LogicalDatastoreType.OPERATIONAL, cpIID,
+             Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
+        if (circuitPackObject.isEmpty()) {
+            LOG.warn(PortMappingUtils.MISSING_CP_LOGMSG + PortMappingUtils.PORTMAPPING_IGNORE_LOGMSG,
+                nodeId, circuitPackName);
+            return new ArrayList<>();
+        }
+        if (circuitPackObject.get().getPorts() == null) {
+            LOG.warn(PortMappingUtils.NO_PORT_ON_CP_LOGMSG, nodeId, PortMappingUtils.FOUND, circuitPackName);
+            return new ArrayList<>();
+        }
+        return new ArrayList<>(circuitPackObject.get().nonnullPorts().values());
+    }
+
     private String createLogicalConnectionPort(Ports port, int index, int portIndex) {
         if (SUFFIX.containsKey(port.getPortDirection())) {
             return String.join("-", "SRG" + index, "PP" + portIndex, SUFFIX.get(port.getPortDirection()));
         }
-        LOG.error("port {} : Unsupported port direction {}", port, port.getPortDirection());
+        LOG.error(PortMappingUtils.UNSUPPORTED_DIR_LOGMSG,
+            "createLogicalConnectionPort", port, "SRG" + index + "-PP" + portIndex, port.getPortDirection());
         return null;
     }
 
-    private String createXpdrLogicalConnectionPort(int xponderNb, int lcpNb, String token) {
-        return new StringBuilder("XPDR").append(xponderNb)
-                .append("-")
-                .append(token).append(lcpNb)
-                .toString();
-    }
-
     private Map<Integer, Degree> getDegreesMap(String deviceId, Info ordmInfo) {
         Map<Integer, Degree> degrees = new HashMap<>();
 
@@ -448,7 +416,7 @@ public class PortMappingVersion121 {
         Integer maxDegree = ordmInfo.getMaxDegrees() == null ? 20 : ordmInfo.getMaxDegrees().toJava();
 
         for (int degreeCounter = 1; degreeCounter <= maxDegree; degreeCounter++) {
-            LOG.debug("{} : Getting Connection ports for Degree Number {}", deviceId, degreeCounter);
+            LOG.debug(PortMappingUtils.GETTING_CONPORT_LOGMSG, deviceId, degreeCounter);
             InstanceIdentifier<Degree> deviceIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
                 .child(Degree.class, new DegreeKey(Uint16.valueOf(degreeCounter)));
             Optional<Degree> ordmDegreeObject = this.deviceTransactionManager.getDataFromDevice(deviceId,
@@ -458,7 +426,8 @@ public class PortMappingVersion121 {
                 degrees.put(degreeCounter, ordmDegreeObject.get());
             }
         }
-        LOG.info("{} : Device has {} degree(s)", deviceId, degrees.size());
+        LOG.info(PortMappingUtils.DEVICE_HAS_LOGMSG,
+                deviceId, degrees.size(), degrees.size() <= 1 ? "degree" : "degrees");
         return degrees;
     }
 
@@ -470,14 +439,14 @@ public class PortMappingVersion121 {
     }
 
     private Map<String, String> getEthInterfaceList(String nodeId) {
-        LOG.info("{} : It is calling get ethernet interface", nodeId);
+        LOG.info(PortMappingUtils.GETTING_ETH_LIST_LOGMSG, nodeId);
         InstanceIdentifier<Protocols> protocoliid = InstanceIdentifier.create(OrgOpenroadmDevice.class)
             .child(Protocols.class);
         Optional<Protocols> protocolObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
             LogicalDatastoreType.OPERATIONAL, protocoliid, Timeouts.DEVICE_READ_TIMEOUT,
             Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-        if (!protocolObject.isPresent() || protocolObject.get().augmentation(Protocols1.class).getLldp() == null) {
-            LOG.warn("{} : Couldnt find port config under LLDP - Processiong is done.. now returning..", nodeId);
+        if (protocolObject.isEmpty() || protocolObject.get().augmentation(Protocols1.class).getLldp() == null) {
+            LOG.warn(PortMappingUtils.PROCESSING_DONE_LOGMSG, nodeId, PortMappingUtils.CANNOT_GET_LLDP_CONF_LOGMSG);
             return new HashMap<>();
         }
         Map<String, String> cpToInterfaceMap = new HashMap<>();
@@ -491,7 +460,7 @@ public class PortMappingVersion121 {
             Optional<Interface> interfaceObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
                 LogicalDatastoreType.OPERATIONAL, interfaceIID, Timeouts.DEVICE_READ_TIMEOUT,
                 Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-            if (!interfaceObject.isPresent() || (interfaceObject.get().getSupportingCircuitPackName() == null)) {
+            if (interfaceObject.isEmpty() || interfaceObject.get().getSupportingCircuitPackName() == null) {
                 continue;
             }
             String supportingCircuitPackName = interfaceObject.get().getSupportingCircuitPackName();
@@ -502,20 +471,19 @@ public class PortMappingVersion121 {
             Optional<CircuitPacks> circuitPackObject = this.deviceTransactionManager.getDataFromDevice(
                 nodeId, LogicalDatastoreType.OPERATIONAL, circuitPacksIID, Timeouts.DEVICE_READ_TIMEOUT,
                 Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-            if (!circuitPackObject.isPresent() || (circuitPackObject.get().getParentCircuitPack() == null)) {
+            if (circuitPackObject.isEmpty() || circuitPackObject.get().getParentCircuitPack() == null) {
                 continue;
             }
             cpToInterfaceMap.put(circuitPackObject.get().getParentCircuitPack().getCircuitPackName(),
                 portConfig.getIfName());
         }
-        LOG.info("{} : Processiong is done.. now returning..", nodeId);
+        LOG.info(PortMappingUtils.PROCESSING_DONE_LOGMSG, nodeId, " - success");
         return cpToInterfaceMap;
     }
 
     private List<CpToDegree> getCpToDegreeList(Map<Integer, Degree> degrees, Map<String, String> interfaceList) {
         List<CpToDegree> cpToDegreeList = new ArrayList<>();
         for (Degree degree : degrees.values()) {
-            LOG.debug("Inside CP to degree list");
             cpToDegreeList.addAll(degree.nonnullCircuitPacks().values().stream()
                 .map(cp -> createCpToDegreeObject(cp.getCircuitPackName(),
                     degree.getDegreeNumber().toString(), interfaceList))
@@ -561,7 +529,7 @@ public class PortMappingVersion121 {
             commit.get();
             return true;
         } catch (InterruptedException | ExecutionException e) {
-            LOG.warn("Failed to post {}", network, e);
+            LOG.warn(PortMappingUtils.PORTMAPPING_POST_FAIL_LOGMSG, nodeId, network, e);
             return false;
         }
     }
@@ -592,33 +560,65 @@ public class PortMappingVersion121 {
         if (!logicalConnectionPoint.contains(StringConstants.TTP_TOKEN) || (port.getInterfaces() == null)) {
             return mpBldr.build();
         }
+        mpBldr = updateMappingInterfaces(nodeId, mpBldr, port);
+        return mpBldr.build();
+    }
+
+    private Mapping updateMappingObject(String nodeId, Ports port, Mapping oldmapping) {
+        MappingBuilder mpBldr = new MappingBuilder(oldmapping);
+        updateMappingStates(mpBldr, port, oldmapping);
+        if (port.getInterfaces() == null) {
+            return mpBldr.build();
+        }
+        // Get interfaces provisioned on the port
+        mpBldr = updateMappingInterfaces(nodeId, mpBldr, port);
+        return mpBldr.build();
+    }
 
-        // Get OMS and OTS interface provisioned on the TTP's
+    private MappingBuilder updateMappingStates(MappingBuilder mpBldr, Ports port, Mapping oldmapping) {
+        if (port.getAdministrativeState() != null
+            && !port.getAdministrativeState().getName().equals(oldmapping.getPortAdminState())) {
+            mpBldr.setPortAdminState(port.getAdministrativeState().name());
+        }
+        if (port.getOperationalState() != null
+            && !port.getOperationalState().getName().equals(oldmapping.getPortOperState())) {
+            mpBldr.setPortOperState(port.getOperationalState().name());
+        }
+        return mpBldr;
+    }
+
+    private MappingBuilder updateMappingInterfaces(String nodeId, MappingBuilder mpBldr, Ports port) {
+        mpBldr.setSupportingOtu4(null)
+            .setSupportingOdu4(null);
         for (Interfaces interfaces : port.getInterfaces()) {
-            try {
-                Optional<Interface> openRoadmInterface = this.openRoadmInterfaces.getInterface(nodeId,
-                    interfaces.getInterfaceName());
-                if (!openRoadmInterface.isPresent()) {
-                    LOG.warn("{} : Interface {} was null!", nodeId, interfaces.getInterfaceName());
-                    continue;
-                }
-                LOG.debug("{} : interface get from device is {} and of type {}",
-                    nodeId, openRoadmInterface.get().getName(), openRoadmInterface.get().getType());
-                Class<? extends InterfaceType> interfaceType
-                    = (Class<? extends InterfaceType>) openRoadmInterface.get().getType();
-                // Check if interface type is OMS or OTS
-                if (interfaceType.equals(OpenROADMOpticalMultiplex.class)) {
-                    mpBldr.setSupportingOms(interfaces.getInterfaceName());
-                }
-                if (interfaceType.equals(OpticalTransport.class)) {
-                    mpBldr.setSupportingOts(interfaces.getInterfaceName());
-                }
-            } catch (OpenRoadmInterfaceException ex) {
-                LOG.warn("{} : Error while getting interface {} - ",
-                    nodeId, interfaces.getInterfaceName(), ex);
+            Optional<Interface> openRoadmInterface = getInterfaceFromDevice(nodeId, interfaces.getInterfaceName());
+            if (openRoadmInterface.isEmpty()) {
+                LOG.warn(PortMappingUtils.INTF_ISSUE_LOGMSG,
+                    nodeId, interfaces.getInterfaceName() + "- empty interface");
+                continue;
+            }
+            LOG.debug(PortMappingUtils.GOT_INTF_LOGMSG,
+                nodeId, openRoadmInterface.get().getName(), openRoadmInterface.get().getType());
+            Class<? extends InterfaceType> interfaceType
+                = (Class<? extends InterfaceType>) openRoadmInterface.get().getType();
+            // Check if interface type is OMS or OTS
+            if (interfaceType.equals(OpenROADMOpticalMultiplex.class)) {
+                mpBldr.setSupportingOms(interfaces.getInterfaceName());
+            }
+            if (interfaceType.equals(OpticalTransport.class)) {
+                mpBldr.setSupportingOts(interfaces.getInterfaceName());
+            }
+            if (interfaceType.equals(OtnOtu.class)) {
+                mpBldr.setSupportingOtu4(interfaces.getInterfaceName());
+            }
+            if (interfaceType.equals(OtnOdu.class)) {
+                mpBldr.setSupportingOdu4(interfaces.getInterfaceName());
+            }
+            if (interfaceType.equals(EthernetCsmacd.class)) {
+                mpBldr.setSupportingEthernet(interfaces.getInterfaceName());
             }
         }
-        return mpBldr.build();
+        return mpBldr;
     }
 
     private Mapping createXpdrMappingObject(String nodeId, Ports port, String circuitPackName,
@@ -628,16 +628,27 @@ public class PortMappingVersion121 {
             // update existing mapping
             return new MappingBuilder(mapping).setConnectionMapLcp(assoLcp).build();
         }
+        return createNewXpdrMapping(nodeId, port, circuitPackName, logicalConnectionPoint, partnerLcp);
+    }
 
-        // create a new mapping
-        String nodeIdLcp = nodeId + "-" + logicalConnectionPoint;
+    private Mapping createNewXpdrMapping(String nodeId, Ports port, String circuitPackName,
+            String logicalConnectionPoint, String partnerLcp) {
+        List<Class<? extends org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211
+            .SupportedIfCapability>> supportedIntf = new ArrayList<>();
+        for (String sup: getSupIfCapList(port)) {
+            if (MappingUtilsImpl.convertSupIfCapa(sup) != null) {
+                supportedIntf.add(MappingUtilsImpl.convertSupIfCapa(sup));
+            }
+        }
         MappingBuilder mpBldr = new MappingBuilder()
                 .withKey(new MappingKey(logicalConnectionPoint))
                 .setLogicalConnectionPoint(logicalConnectionPoint)
                 .setSupportingCircuitPackName(circuitPackName)
                 .setSupportingPort(port.getPortName())
                 .setPortDirection(port.getPortDirection().getName())
-                .setLcpHashVal(FnvUtils.fnv1_64(nodeIdLcp));
+                .setXponderType(XpdrNodeTypes.Tpdr)
+                .setLcpHashVal(PortMappingUtils.fnv1size64(nodeId + "-" + logicalConnectionPoint))
+                .setSupportedInterfaceCapability(supportedIntf);
         if (port.getPortQual() != null) {
             mpBldr.setPortQual(port.getPortQual().getName());
         }
@@ -653,12 +664,21 @@ public class PortMappingVersion121 {
         return mpBldr.build();
     }
 
+    private List<String> getSupIfCapList(Ports port) {
+        List<Class<? extends SupportedIfCapability>> supIfCapClassList = port.getSupportedInterfaceCapability();
+        return
+            supIfCapClassList == null
+                ? Collections.emptyList()
+                : supIfCapClassList
+                    .stream().map(e -> e.getSimpleName())
+                    .collect(Collectors.toList());
+    }
+
     private Ports getPort2(Ports port, String nodeId, String circuitPackName, StringBuilder circuitPackName2,
             //circuitPackName2 will be updated by reference contrary to circuitPackName
             List<CircuitPacks> circuitPackList, Map<String, String> lcpMap) {
         if (!checkPartnerPortNotNull(port)) {
-            LOG.warn("{} : port {} on {} - Error in the configuration ",
-                    nodeId, port.getPortName(), circuitPackName);
+            LOG.warn(PortMappingUtils.NO_VALID_PARTNERPORT_LOGMSG, nodeId, port.getPortName(), circuitPackName);
             return null;
         }
         if (lcpMap.containsKey(circuitPackName + '+' + port.getPortName())) {
@@ -667,24 +687,23 @@ public class PortMappingVersion121 {
         Optional<CircuitPacks> cpOpt = circuitPackList.stream()
             .filter(cP -> cP.getCircuitPackName().equals(port.getPartnerPort().getCircuitPackName()))
             .findFirst();
-        if (!cpOpt.isPresent()) {
-            LOG.error("{} : Error fetching circuit-pack {}",
-                    nodeId, port.getPartnerPort().getCircuitPackName());
+        if (cpOpt.isEmpty()) {
+            LOG.error(PortMappingUtils.MISSING_CP_LOGMSG, nodeId, port.getPartnerPort().getCircuitPackName());
             return null;
         }
         Optional<Ports> poOpt = cpOpt.get().nonnullPorts().values().stream()
-            .filter(p -> p.getPortName().equals(port.getPartnerPort().getPortName().toString()))
+            .filter(p -> p.getPortName().equals(port.getPartnerPort().getPortName()))
             .findFirst();
-        if (!poOpt.isPresent()) {
-            LOG.error("{} : Error fetching port {} on {}",
-                    nodeId, port.getPartnerPort().getPortName(), port.getPartnerPort().getCircuitPackName());
+        if (poOpt.isEmpty()) {
+            LOG.error(PortMappingUtils.NO_PORT_ON_CP_LOGMSG,
+                nodeId, port.getPartnerPort().getPortName(), port.getPartnerPort().getCircuitPackName());
             return null;
         }
         Ports port2 = poOpt.get();
         circuitPackName2.append(cpOpt.get().getCircuitPackName());
         if (!checkPartnerPort(circuitPackName, port, port2)) {
-            LOG.error("{} : port {} on {} is not a correct partner port of {} on  {}",
-                    nodeId, port2.getPortName(), circuitPackName2, port.getPortName(), circuitPackName);
+            LOG.error(PortMappingUtils.NOT_CORRECT_PARTNERPORT_LOGMSG,
+                nodeId, port2.getPortName(), circuitPackName2, port.getPortName(), circuitPackName);
             return null;
         }
         return port2;
@@ -694,10 +713,16 @@ public class PortMappingVersion121 {
             Integer xponderNb,
             String circuitPackName, String circuitPackName2, Ports port, Ports port2,
             Map<String, String> lcpMap, Map<String, Mapping> mappingMap) {
-        String lcp1 = createXpdrLogicalConnectionPort(xponderNb, line, StringConstants.NETWORK_TOKEN);
-        String lcp2 = createXpdrLogicalConnectionPort(xponderNb, line + 1, StringConstants.NETWORK_TOKEN);
-        if (lcpMap.containsKey(lcp1) || lcpMap.containsKey(lcp2)) {
-            LOG.warn("{} : mapping already exists for {} or {}", nodeId, lcp1, lcp2);
+        String lcp1 =
+            PortMappingUtils.createXpdrLogicalConnectionPort(xponderNb, line, StringConstants.NETWORK_TOKEN);
+        if (lcpMap.containsKey(lcp1)) {
+            LOG.warn(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, "add", lcp1 + " - already exist");
+            return;
+        }
+        String lcp2 =
+            PortMappingUtils.createXpdrLogicalConnectionPort(xponderNb, line + 1, StringConstants.NETWORK_TOKEN);
+        if (lcpMap.containsKey(lcp2)) {
+            LOG.warn(PortMappingUtils.UNABLE_MAPPING_LOGMSG, nodeId, "add", lcp2 + " - already exist");
             return;
         }
         lcpMap.put(circuitPackName + '+' + port.getPortName(), lcp1);
@@ -715,15 +740,15 @@ public class PortMappingVersion121 {
             List<CircuitPacks> circuitPackList, Map<String, String> lcpMap, Map<String, Mapping> mappingMap) {
 
         if (port.getPortQual() == null) {
-            LOG.warn("{} : port {} on {} - PortQual was not found",
-                    nodeId, port.getPortName(), circuitPackName);
+            LOG.warn(PortMappingUtils.PORTQUAL_LOGMSG, nodeId, port.getPortName(), circuitPackName, "not found");
             return new int[] {line, client};
         }
 
         switch (port.getPortQual()) {
 
             case XpdrClient:
-                String lcp0 = createXpdrLogicalConnectionPort(xponderNb, client, StringConstants.CLIENT_TOKEN);
+                String lcp0 =
+                    PortMappingUtils.createXpdrLogicalConnectionPort(xponderNb, client, StringConstants.CLIENT_TOKEN);
                 lcpMap.put(circuitPackName + '+' + port.getPortName(), lcp0);
                 mappingMap.put(lcp0,
                     createXpdrMappingObject(nodeId, port, circuitPackName, lcp0, null, null, null));
@@ -738,8 +763,8 @@ public class PortMappingVersion121 {
                 break;
 
             default:
-                LOG.error("{} : port {} on {} - unsupported PortQual {}",
-                        nodeId, port.getPortName(), circuitPackName, port.getPortQual());
+                LOG.error(PortMappingUtils.PORTQUAL_LOGMSG,
+                    nodeId, port.getPortName(), circuitPackName, port.getPortQual() + " not supported");
         }
         return new int[] {line, client};
     }
@@ -752,7 +777,8 @@ public class PortMappingVersion121 {
         switch (port.getPortDirection()) {
 
             case Bidirectional:
-                String lcp = createXpdrLogicalConnectionPort(xponderNb, line, StringConstants.NETWORK_TOKEN);
+                String lcp =
+                    PortMappingUtils.createXpdrLogicalConnectionPort(xponderNb, line, StringConstants.NETWORK_TOKEN);
                 lcpMap.put(circuitPackName + '+' + port.getPortName(), lcp);
                 mappingMap.put(lcp,
                     createXpdrMappingObject(nodeId, port, circuitPackName, lcp, null, null, null));
@@ -778,7 +804,7 @@ public class PortMappingVersion121 {
                 break;
 
             default:
-                LOG.error("{} : port {} on {} - unsupported Direction {}",
+                LOG.error(PortMappingUtils.UNSUPPORTED_DIR_LOGMSG,
                      nodeId, port.getPortName(), circuitPackName, port.getPortDirection());
         }
 
@@ -790,152 +816,139 @@ public class PortMappingVersion121 {
         Map<Integer, Degree> degrees = getDegreesMap(nodeId, deviceInfo);
         Map<String, String> interfaceList = getEthInterfaceList(nodeId);
         List<CpToDegree> cpToDegreeList = getCpToDegreeList(degrees, interfaceList);
-        LOG.info("{} : Map looks like this {}", nodeId, interfaceList);
+        LOG.info(PortMappingUtils.MAP_LOOKS_LOGMSG, nodeId, interfaceList);
         postPortMapping(nodeId, null, null, cpToDegreeList);
 
         Map<Integer, List<ConnectionPorts>> connectionPortMap = getPerDegreePorts(nodeId, deviceInfo);
         for (Entry<Integer, List<ConnectionPorts>> cpMapEntry : connectionPortMap.entrySet()) {
-            switch (connectionPortMap.get(cpMapEntry.getKey()).size()) {
+            List<ConnectionPorts> cpMapValue = cpMapEntry.getValue();
+            ConnectionPorts cp1 = cpMapValue.get(0);
+            String cp1Name = cp1.getCircuitPackName();
+            switch (cpMapValue.size()) {
                 case 1:
                     // port is bidirectional
-                    InstanceIdentifier<Ports> portID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                        .child(CircuitPacks.class,
-                            new CircuitPacksKey(connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName()))
-                        .child(Ports.class,
-                            new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName().toString()));
-                    LOG.debug("{} : Fetching connection-port {} at circuit pack {}",
-                            nodeId,
-                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName(),
-                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName());
-                    Optional<Ports> portObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
-                        LogicalDatastoreType.OPERATIONAL, portID, Timeouts.DEVICE_READ_TIMEOUT,
-                        Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-                    if (!portObject.isPresent()) {
-                        LOG.error("{} : No port {} on circuit pack {}",
-                                nodeId,
-                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName(),
-                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName());
+                    Ports port = getTtpPort(cp1, cp1Name, nodeId);
+                    if (port == null) {
                         return false;
                     }
-                    Ports port = portObject.get();
-                    if (port.getPortQual() == null) {
-                        continue;
-                    }
-                    if (Port.PortQual.RoadmExternal.getIntValue() != port.getPortQual().getIntValue()
-                        || Direction.Bidirectional.getIntValue() != port.getPortDirection().getIntValue()) {
-                        LOG.error("{} : port {} on {} - Impossible to create logical connection point"
-                                + " - Error in configuration with port-qual or port-direction",
-                                nodeId, port.getPortName(),
-                                connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName());
+                    if (!checkTtpPort(port, cp1Name, nodeId, true)) {
                         continue;
                     }
-                    String logicalConnectionPoint = new StringBuilder("DEG")
-                        .append(cpMapEntry.getKey())
-                        .append("-TTP-TXRX")
-                        .toString();
-                    LOG.info("{} : Logical Connection Point for {} on {} is {}",
-                            nodeId,
-                            port.getPortName(), connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
-                            logicalConnectionPoint);
-                    portMapList.add(createMappingObject(nodeId, port,
-                        connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
-                        logicalConnectionPoint));
+                    String logicalConnectionPoint =
+                            PortMappingUtils.degreeTtpNodeName(cpMapEntry.getKey().toString(), "TXRX");
+                    LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                        nodeId, port.getPortName(), cp1Name, logicalConnectionPoint);
+                    portMapList.add(createMappingObject(nodeId, port, cp1Name, logicalConnectionPoint));
                     break;
                 case 2:
                     // ports are unidirectionals
-                    String cp1Name = connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName();
-                    String cp2Name = connectionPortMap.get(cpMapEntry.getKey()).get(1).getCircuitPackName();
-                    InstanceIdentifier<Ports> port1ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                        .child(CircuitPacks.class, new CircuitPacksKey(cp1Name))
-                        .child(Ports.class,
-                            new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName().toString()));
-                    LOG.debug("{} : Fetching connection-port {} at circuit pack {}",
-                            nodeId, connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName(), cp1Name);
-                    Optional<Ports> port1Object = this.deviceTransactionManager.getDataFromDevice(nodeId,
-                        LogicalDatastoreType.OPERATIONAL, port1ID, Timeouts.DEVICE_READ_TIMEOUT,
-                        Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-                    InstanceIdentifier<Ports> port2ID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
-                        .child(CircuitPacks.class, new CircuitPacksKey(cp2Name))
-                        .child(Ports.class,
-                            new PortsKey(connectionPortMap.get(cpMapEntry.getKey()).get(1).getPortName().toString()));
-                    LOG.debug("{} : Fetching connection-port {} at circuit pack {}",
-                            nodeId, connectionPortMap.get(cpMapEntry.getKey()).get(1).getPortName(), cp2Name);
-                    Optional<Ports> port2Object = this.deviceTransactionManager.getDataFromDevice(nodeId,
-                        LogicalDatastoreType.OPERATIONAL, port2ID, Timeouts.DEVICE_READ_TIMEOUT,
-                        Timeouts.DEVICE_READ_TIMEOUT_UNIT);
-                    if (!port1Object.isPresent() || !port2Object.isPresent()) {
-                        LOG.error("No port {} on circuit pack {} for node {}",
-                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getPortName().toString(),
-                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(), nodeId);
+                    Ports port1 = getTtpPort(cp1, cp1Name, nodeId);
+                    if (port1 == null) {
                         return false;
                     }
-
-                    Ports port1 = port1Object.get();
-                    Ports port2 = port2Object.get();
-                    if (port1.getPortQual() == null || port2.getPortQual() == null) {
-                        continue;
-                    }
-                    if (Port.PortQual.RoadmExternal.getIntValue() != port1.getPortQual().getIntValue()
-                        || Port.PortQual.RoadmExternal.getIntValue() != port2.getPortQual().getIntValue()) {
-                        LOG.error("{} : Impossible to create logical connection point for port {} or port {}"
-                                + " - Error in configuration with port-qual",
-                                nodeId, port1.getPortName(), port2.getPortName());
-                        continue;
-                    }
-                    if (!checkPartnerPort(cp1Name, port1, port2)) {
-                        LOG.error("{} : port {} on {} is not a correct partner port of {} on  {}",
-                                nodeId, port2.getPortName(), cp2Name, port1.getPortName(), cp1Name);
-                        continue;
+                    ConnectionPorts cp2 = cpMapValue.get(1);
+                    String cp2Name = cp2.getCircuitPackName();
+                    Ports port2 = getTtpPort(cp2, cp2Name, nodeId);
+                    if (port2 == null) {
+                        return false;
                     }
-                    // Directions checks are the same for cp1 and cp2, no need to check them twice.
-                    if (!checkPartnerPortNoDir(cp2Name, port2, port1)) {
-                        LOG.error("{} : port {} on {} is not a correct partner port of {} on  {}",
-                                nodeId, port1.getPortName(), cp1Name, port2.getPortName(), cp2Name);
+                    if (!checkTtpPortsUnidir(port1, port2, cp1Name, cp2Name, nodeId)) {
                         continue;
                     }
-
-                    String logicalConnectionPoint1 = new StringBuilder("DEG")
-                        .append(cpMapEntry.getKey())
-                        .append("-TTP-")
-                        .append(port1.getPortDirection().getName().toUpperCase(Locale.getDefault()))
-                        .toString();
-                    LOG.info("{} : Logical Connection Point for {} {} is {}",
-                            nodeId,
-                            connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
-                            port1.getPortName(), logicalConnectionPoint1);
-                    portMapList.add(createMappingObject(nodeId, port1,
-                        connectionPortMap.get(cpMapEntry.getKey()).get(0).getCircuitPackName(),
-                        logicalConnectionPoint1));
-                    String logicalConnectionPoint2 = new StringBuilder("DEG")
-                        .append(cpMapEntry.getKey())
-                        .append("-TTP-")
-                        .append(port2.getPortDirection().getName().toUpperCase(Locale.getDefault()))
-                        .toString();
-                    LOG.info("{} : Logical Connection Point for {} {} is {}", nodeId,
-                        connectionPortMap.get(cpMapEntry.getKey()).get(1).getCircuitPackName(),
-                        port2.getPortName(), logicalConnectionPoint2);
-                    portMapList.add(createMappingObject(nodeId, port2,
-                        connectionPortMap.get(cpMapEntry.getKey()).get(1).getCircuitPackName(),
-                        logicalConnectionPoint2));
+                    String logicalConnectionPoint1 = PortMappingUtils.degreeTtpNodeName(cpMapEntry.getKey().toString(),
+                            port1.getPortDirection().getName().toUpperCase(Locale.getDefault()));
+                    LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                        nodeId, port1.getPortName(), cp1Name, logicalConnectionPoint1);
+                    portMapList.add(createMappingObject(nodeId, port1, cp1Name, logicalConnectionPoint1));
+                    String logicalConnectionPoint2 = PortMappingUtils.degreeTtpNodeName(cpMapEntry.getKey().toString(),
+                            port2.getPortDirection().getName().toUpperCase(Locale.getDefault()));
+                    LOG.info(PortMappingUtils.ASSOCIATED_LCP_LOGMSG,
+                        nodeId, port2.getPortName(), cp2Name, logicalConnectionPoint2);
+                    portMapList.add(createMappingObject(nodeId, port2, cp2Name, logicalConnectionPoint2));
                     break;
                 default:
-                    LOG.error("{} : Number of connection port for DEG{} is incorrect", nodeId, cpMapEntry.getKey());
+                    LOG.error(PortMappingUtils.NOT_CORRECT_CONPORT_LOGMSG, nodeId, cpMapEntry.getKey());
                     continue;
+                    //TODO should it be continue or return false ?
             }
         }
         return true;
     }
 
-    private NodeInfo createNodeInfo(Info deviceInfo) {
+    private Ports getTtpPort(ConnectionPorts cp, String cpName, String nodeId) {
+        InstanceIdentifier<Ports> portID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
+            .child(CircuitPacks.class, new CircuitPacksKey(cpName))
+            .child(Ports.class, new PortsKey(cp.getPortName()));
+        LOG.debug(PortMappingUtils.FETCH_CONNECTIONPORT_LOGMSG, nodeId, cp.getPortName(), cpName);
+        Optional<Ports> portObject = this.deviceTransactionManager.getDataFromDevice(nodeId,
+            LogicalDatastoreType.OPERATIONAL, portID, Timeouts.DEVICE_READ_TIMEOUT,
+            Timeouts.DEVICE_READ_TIMEOUT_UNIT);
+        if (portObject.isEmpty()) {
+            LOG.error(PortMappingUtils.NO_PORT_ON_CP_LOGMSG, nodeId, cp.getPortName(), cpName);
+            return null;
+        }
+        return portObject.get();
+    }
+
+    private boolean checkPortQual(Ports port, String cpName, String nodeId) {
+        if (port.getPortQual() == null) {
+            return false;
+        }
+        if (Port.PortQual.RoadmExternal.getIntValue() != port.getPortQual().getIntValue()) {
+            //used to be LOG.error when called from createTtpPortMapping
+            LOG.debug(PortMappingUtils.PORT_NOT_RDMEXT_LOGMSG + PortMappingUtils.CANNOT_AS_LCP_LOGMSG,
+                nodeId, port.getPortName(), cpName);
+            return false;
+        }
+        return true;
+    }
+
+    private boolean checkTtpPort(Ports port, String cpName, String nodeId, boolean bidirectional) {
+        if (!checkPortQual(port, cpName, nodeId)) {
+            return false;
+        }
+        if (Direction.Bidirectional.getIntValue() == port.getPortDirection().getIntValue() ^ bidirectional) {
+        // (a ^ b) makes more sense than (!a && b) here since it can also work for unidirectional links
+            LOG.error(PortMappingUtils.PORTDIR_ERROR_LOGMSG + PortMappingUtils.CANNOT_AS_LCP_LOGMSG,
+                nodeId, port.getPortName(), cpName);
+            return false;
+        }
+        return true;
+    }
 
+    private boolean checkTtpPortsUnidir(Ports port1, Ports port2, String cp1Name, String cp2Name, String nodeId) {
+        if (!checkTtpPort(port1, cp1Name, nodeId, false)) {
+            return false;
+        }
+        if (!checkTtpPort(port2, cp2Name, nodeId, false)) {
+            return false;
+        }
+        if (!checkPartnerPort(cp1Name, port1, port2)) {
+            LOG.error(PortMappingUtils.NOT_CORRECT_PARTNERPORT_LOGMSG,
+                nodeId, port2.getPortName(), cp2Name, port1.getPortName(), cp1Name);
+            return false;
+        }
+        // Directions checks are the same for cp1 and cp2, no need to check them twice.
+        if (!checkPartnerPortNoDir(cp2Name, port2, port1)) {
+            LOG.error(PortMappingUtils.NOT_CORRECT_PARTNERPORT_LOGMSG,
+                nodeId, port1.getPortName(), cp1Name, port2.getPortName(), cp2Name);
+            return false;
+        }
+        return true;
+    }
+
+    private NodeInfo createNodeInfo(Info deviceInfo) {
         if (deviceInfo.getNodeType() == null) {
             // TODO make mandatory in yang
-            LOG.error("Node type field is missing");
+            LOG.error(PortMappingUtils.NODE_TYPE_LOGMSG, deviceInfo.getNodeId(), "field missing");
             return null;
         }
-
         NodeInfoBuilder nodeInfoBldr = new NodeInfoBuilder()
-                .setOpenroadmVersion(OpenroadmVersion._121);
+                .setOpenroadmVersion(OpenroadmNodeVersion._121)
+                .setNodeClli(
+                    deviceInfo.getClli() == null || deviceInfo.getClli().isEmpty()
+                        ? "defaultCLLI"
+                        : deviceInfo.getClli());
         // TODO check if we can use here .setNodeType(NodeTypes.forValue(..) such as with 221
         switch (deviceInfo.getNodeType().getIntValue()) {
             case 1:
@@ -943,14 +956,9 @@ public class PortMappingVersion121 {
                 nodeInfoBldr.setNodeType(NodeTypes.forValue(deviceInfo.getNodeType().getIntValue()));
                 break;
             default:
-                LOG.error("Error with node-type of {}", deviceInfo.getNodeId());
+                LOG.error(PortMappingUtils.NODE_TYPE_LOGMSG, deviceInfo.getNodeId(), "value not supported");
                 // TODO: is this protection useful ? it is not present in Portmapping 221
         }
-        if (deviceInfo.getClli() != null && !deviceInfo.getClli().isEmpty()) {
-            nodeInfoBldr.setNodeClli(deviceInfo.getClli());
-        } else {
-            nodeInfoBldr.setNodeClli("defaultCLLI");
-        }
         if (deviceInfo.getModel() != null) {
             nodeInfoBldr.setNodeModel(deviceInfo.getModel());
         }
@@ -960,8 +968,13 @@ public class PortMappingVersion121 {
         if (deviceInfo.getIpAddress() != null) {
             nodeInfoBldr.setNodeIpAddress(deviceInfo.getIpAddress());
         }
-
         return nodeInfoBldr.build();
     }
 
+    private Optional<Interface> getInterfaceFromDevice(String nodeId, String interfaceName) {
+        InstanceIdentifier<Interface> interfacesIID = InstanceIdentifier.create(OrgOpenroadmDevice.class)
+            .child(Interface.class, new InterfaceKey(interfaceName));
+        return deviceTransactionManager.getDataFromDevice(nodeId, LogicalDatastoreType.CONFIGURATION,
+            interfacesIID, Timeouts.DEVICE_READ_TIMEOUT, Timeouts.DEVICE_READ_TIMEOUT_UNIT);
+    }
 }