Refactor SupportedIfCapability usage
[transportpce.git] / pce / src / main / java / org / opendaylight / transportpce / pce / networkanalyzer / PceOtnNode.java
index b2cc9356aac33bf476240d258b3b8e4e2ed52345..b4f2d16fe85bb7190da8aa0a599ecfd5e6784a62 100644 (file)
@@ -17,25 +17,26 @@ import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
 import java.util.stream.Collectors;
-import org.eclipse.jdt.annotation.Nullable;
 import org.opendaylight.transportpce.common.StringConstants;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.state.types.rev191129.State;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.equipment.states.types.rev191129.AdminStates;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.types.rev200327.xpdr.odu.switching.pools.OduSwitchingPools;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.types.rev200327.xpdr.odu.switching.pools.odu.switching.pools.NonBlockingList;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.OpenroadmNodeType;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.OpenroadmTpType;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev200529.xpdr.tp.supported.interfaces.SupportedInterfaceCapability;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.types.rev201211.xpdr.odu.switching.pools.OduSwitchingPools;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.topology.types.rev201211.xpdr.odu.switching.pools.odu.switching.pools.NonBlockingList;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmNodeType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.OpenroadmTpType;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev211210.xpdr.tp.supported.interfaces.SupportedInterfaceCapability;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev200327.ODTU4TsAllocated;
 import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.common.types.rev200327.ODTUCnTs;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.Node1;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.TerminationPoint1;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.networks.network.node.SwitchingPools;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev200327.If100GEODU4;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev200327.If10GEODU2e;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev200327.If1GEODU0;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev200327.IfOCHOTU4ODU4;
-import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev200327.IfOtsiOtsigroup;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev211210.Node1;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev211210.TerminationPoint1;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev211210.networks.network.node.termination.point.XpdrTpPortConnectionAttributes;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.If100GEODU4;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.If10GEODU2e;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.If1GEODU0;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.IfOCHOTU4ODU4;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.IfOtsiOtsigroup;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.port.types.rev201211.SupportedIfCapability;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.xponder.rev211210.xpdr.otn.tp.attributes.OdtuTpnPool;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.Node;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.TpId;
@@ -45,13 +46,37 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class PceOtnNode implements PceNode {
-    /* Logging. */
-    private static final Logger LOG = LoggerFactory.getLogger(PceOtnNode.class);
     ////////////////////////// OTN NODES ///////////////////////////
     /*
      * For This Class the node passed shall be at the otn-openroadm Layer
      */
 
+    private static final Logger LOG = LoggerFactory.getLogger(PceOtnNode.class);
+    private static final List<String> SERVICE_TYPE_ODU_LIST = List.of(
+        StringConstants.SERVICE_TYPE_ODU4,
+        StringConstants.SERVICE_TYPE_ODUC4,
+        StringConstants.SERVICE_TYPE_ODUC3,
+        StringConstants.SERVICE_TYPE_ODUC2);
+    private static final List<OpenroadmNodeType> VALID_NODETYPES_LIST = List.of(
+        OpenroadmNodeType.MUXPDR,
+        OpenroadmNodeType.SWITCH,
+        OpenroadmNodeType.TPDR);
+    private static final Map<String, Class<? extends SupportedIfCapability>> SERVICE_TYPE_ETH_CLASS_MAP = Map.of(
+        StringConstants.SERVICE_TYPE_1GE, If1GEODU0.class,
+        StringConstants.SERVICE_TYPE_10GE, If10GEODU2e.class,
+        StringConstants.SERVICE_TYPE_100GE_M, If100GEODU4.class,
+        StringConstants.SERVICE_TYPE_100GE_S, If100GEODU4.class);
+    private static final Map<String, Integer> SERVICE_TYPE_ETH_TS_NB_MAP = Map.of(
+        StringConstants.SERVICE_TYPE_1GE, 1,
+        StringConstants.SERVICE_TYPE_10GE, 10,
+        StringConstants.SERVICE_TYPE_100GE_M, 20);
+    private static final Map<String, String> SERVICE_TYPE_ETH_ODU_STRING_MAP = Map.of(
+        StringConstants.SERVICE_TYPE_1GE, "ODU0",
+        StringConstants.SERVICE_TYPE_10GE, "ODU2e",
+        StringConstants.SERVICE_TYPE_100GE_M, "ODU4");
+    private static final String INTERMEDIATE_MODETYPE = "intermediate";
+    private static final String AZ_MODETYPE = "AZ";
+
     private boolean valid = true;
 
     private final Node node;
@@ -76,8 +101,15 @@ public class PceOtnNode implements PceNode {
 
     private List<PceLink> outgoingLinks = new ArrayList<>();
     private Map<String, String> clientPerNwTp = new HashMap<>();
-
-    public PceOtnNode(Node node, OpenroadmNodeType nodeType, NodeId nodeId, String pceNodeType, String serviceType) {
+    private String clientPort;
+
+    public PceOtnNode(
+            Node node,
+            OpenroadmNodeType nodeType,
+            NodeId nodeId,
+            String pceNodeType,
+            String serviceType,
+            String clientPort) {
         this.node = node;
         this.nodeId = nodeId;
         this.nodeType = nodeType;
@@ -90,170 +122,194 @@ public class PceOtnNode implements PceNode {
         this.usedXpdrClientTps.clear();
         this.availableXpdrClientTps = new ArrayList<>();
         this.usableXpdrClientTps = new ArrayList<>();
-        this.adminStates = node.augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529
-                .Node1.class).getAdministrativeState();
-        this.state = node.augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529
-                .Node1.class).getOperationalState();
+        this.adminStates = node
+            .augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210.Node1.class)
+            .getAdministrativeState();
+        this.state = node
+            .augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210.Node1.class)
+            .getOperationalState();
         this.tpAvailableTribPort.clear();
         checkAvailableTribPort();
         this.tpAvailableTribSlot.clear();
         checkAvailableTribSlot();
-        if ((node == null) || (nodeId == null) || (nodeType != OpenroadmNodeType.MUXPDR)
-            && (nodeType != OpenroadmNodeType.SWITCH) && (nodeType != OpenroadmNodeType.TPDR)) {
+        this.clientPort = clientPort;
+        if (node == null
+                || nodeId == null
+                || nodeType == null
+                || !VALID_NODETYPES_LIST.contains(nodeType)) {
             LOG.error("PceOtnNode: one of parameters is not populated : nodeId, node type");
             this.valid = false;
         }
+        if (!SERVICE_TYPE_ETH_CLASS_MAP.containsKey(serviceType)
+                && !SERVICE_TYPE_ODU_LIST.contains(serviceType)) {
+            LOG.error("PceOtnNode: unsupported OTN Service Type {}", serviceType);
+            this.valid = false;
+        }
     }
 
     public void initXndrTps(String mode) {
         LOG.info("PceOtnNode: initXndrTps for node {}", this.nodeId.getValue());
         this.availableXponderTp.clear();
-
         this.modeType = mode;
-
-        org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Node1 nodeTp
-            = this.node.augmentation(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
-                .ietf.network.topology.rev180226.Node1.class);
-        List<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network
-                .node.TerminationPoint> allTps = new ArrayList<>(nodeTp.nonnullTerminationPoint().values());
+        List<TerminationPoint> allTps =
+            new ArrayList<>(
+                this.node.augmentation(
+                    org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226
+                        .Node1.class)
+                .nonnullTerminationPoint()
+                .values());
         this.valid = false;
         if (allTps.isEmpty()) {
             LOG.error("PceOtnNode: initXndrTps: XPONDER TerminationPoint list is empty for node {}", this);
             return;
         }
-
-        for (org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network
-                .node.TerminationPoint tp : allTps) {
-            org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529.@Nullable TerminationPoint1 ocnTp1
-                = tp.augmentation(org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529
-                .TerminationPoint1.class);
-            //TODO many nested if-structures below, this needs to be reworked
-            if (OpenroadmTpType.XPONDERNETWORK.equals(ocnTp1.getTpType())) {
-                TerminationPoint1 ontTp1;
-                if (tp.augmentation(TerminationPoint1.class) != null) {
-                    ontTp1 = tp.augmentation(TerminationPoint1.class);
-                } else {
-                    continue;
-                }
-                switch (this.otnServiceType) {
-                    case StringConstants.SERVICE_TYPE_100GE_S:
-                        // TODO verify the capability of network port to support ODU4 CTP interface creation
-                    case StringConstants.SERVICE_TYPE_ODU4:
-                    case StringConstants.SERVICE_TYPE_ODUC2:
-                    case StringConstants.SERVICE_TYPE_ODUC3:
-                    case StringConstants.SERVICE_TYPE_ODUC4:
-                        if (!checkTpForOdtuTermination(ontTp1)) {
-                            LOG.error("TP {} of {} does not allow ODU4 termination creation",
-                                tp.getTpId().getValue(), node.getNodeId().getValue());
-                            continue;
-                        }
-                        break;
-
-                    case StringConstants.SERVICE_TYPE_10GE:
-                        if (!checkOdtuTTPforLoOduCreation(ontTp1, 10)) {
-                            LOG.error("TP {} of {} does not allow OD2e termination creation",
-                                tp.getTpId().getValue(), node.getNodeId().getValue());
-                            continue;
-                        }
-                        break;
-                    case StringConstants.SERVICE_TYPE_100GE_M:
-                        if (!checkOdtuTTPforLoOduCreation(ontTp1, 20)) {
-                            LOG.error("TP {} of {} does not allow ODU4 termination creation",
-                                tp.getTpId().getValue(), node.getNodeId().getValue());
-                            continue;
-                        }
-                        break;
-                    case StringConstants.SERVICE_TYPE_1GE:
-                        if (!checkOdtuTTPforLoOduCreation(ontTp1, 1)) {
-                            LOG.error("TP {} of {} does not allow ODU0 termination creation",
-                                tp.getTpId().getValue(), node.getNodeId().getValue());
-                            continue;
-                        }
-                        break;
-
-                    default:
-                        LOG.error("TP {} of {} does not allow any termination creation",
-                            tp.getTpId().getValue(), node.getNodeId().getValue());
+        for (TerminationPoint tp : allTps) {
+            org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210
+                    .TerminationPoint1 ocnTp1
+                = tp.augmentation(
+                    org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210
+                        .TerminationPoint1.class);
+            if (ocnTp1 == null) {
+                LOG.warn("null ocn TP {}", tp);
+                continue;
+            }
+            TerminationPoint1 ontTp1 = tp.augmentation(TerminationPoint1.class);
+            if (ontTp1 == null) {
+                continue;
+            }
+            //TODO many nested structures below, this needs to be reworked
+            switch (ocnTp1.getTpType()) {
+                case XPONDERNETWORK:
+                    String notCreatedServiceType = xpdrNetTpCreation(ontTp1);
+                    if (notCreatedServiceType == null) {
+                        LOG.info("TP {} of XPONDER {} is validated",
+                            tp.getTpId().getValue(),
+                            node.getNodeId().getValue());
+                        this.availableXpdrNWTps.add(tp.getTpId());
+                    } else {
+                        LOG.error("TP {} of {} does not allow {} termination creation",
+                            tp.getTpId().getValue(),
+                            node.getNodeId().getValue(),
+                            notCreatedServiceType);
+                    }
+                    break;
+                case XPONDERCLIENT:
+                    if (!SERVICE_TYPE_ETH_CLASS_MAP.containsKey(this.otnServiceType)) {
                         continue;
-                }
-                LOG.info("TP {} of XPONDER {} is validated", tp.getTpId(), node.getNodeId().getValue());
-                this.availableXpdrNWTps.add(tp.getTpId());
-            } else if (OpenroadmTpType.XPONDERCLIENT.equals(ocnTp1.getTpType())
-                && (StringConstants.SERVICE_TYPE_10GE.equals(this.otnServiceType)
-                    || StringConstants.SERVICE_TYPE_100GE_M.equals(this.otnServiceType)
-                    || StringConstants.SERVICE_TYPE_100GE_S.equals(this.otnServiceType)
-                    || StringConstants.SERVICE_TYPE_1GE.equals(this.otnServiceType))) {
-                TerminationPoint1 ontTp1;
-                if (tp.augmentation(TerminationPoint1.class) != null) {
-                    ontTp1 = tp.augmentation(TerminationPoint1.class);
-                } else {
-                    continue;
-                }
-                if (checkClientTp(ontTp1)) {
-                    LOG.info("TP {} of XPONDER {} is validated", tp.getTpId(), node.getNodeId().getValue());
-                    this.availableXpdrClientTps.add(tp.getTpId());
-                } else {
-                    LOG.error("TP {} of {} does not allow lo-ODU (ODU2e or ODU0) termination creation",
-                        tp.getTpId().getValue(), node.getNodeId().getValue());
-                }
+                    }
+                    if (checkClientTp(ontTp1)) {
+                        LOG.info("TP {} of XPONDER {} is validated",
+                            tp.getTpId(),
+                            node.getNodeId().getValue());
+                        this.availableXpdrClientTps.add(tp.getTpId());
+                    } else {
+                        LOG.error("TP {} of {} does not allow lo-ODU (ODU2e or ODU0) termination creation",
+                            tp.getTpId().getValue(),
+                            node.getNodeId().getValue());
+                    }
+                    break;
+
+                default:
+                    LOG.debug("unsupported ocn TP type {}", ocnTp1.getTpType());
             }
         }
+        this.valid = checkSwPool(availableXpdrNWTps, availableXpdrClientTps);
+    }
 
-        if ((StringConstants.SERVICE_TYPE_ODU4.equals(this.otnServiceType)
-                || StringConstants.SERVICE_TYPE_ODUC4.equals(this.otnServiceType)
-                || StringConstants.SERVICE_TYPE_ODUC3.equals(this.otnServiceType)
-                || StringConstants.SERVICE_TYPE_ODUC2.equals(this.otnServiceType))
-            || ((StringConstants.SERVICE_TYPE_10GE.equals(this.otnServiceType)
-                    || StringConstants.SERVICE_TYPE_100GE_M.equals(this.otnServiceType)
-                    || StringConstants.SERVICE_TYPE_1GE.equals(this.otnServiceType))
-                && ((mode.equals("AZ") && checkSwPool(availableXpdrClientTps, availableXpdrNWTps, 1, 1))
-                     || (mode.equals("intermediate") && checkSwPool(null, availableXpdrNWTps, 0, 2)))
-               )
-            || (StringConstants.SERVICE_TYPE_100GE_S.equals(this.otnServiceType)
-                && (mode.equals("AZ") && checkSwPool(availableXpdrClientTps, availableXpdrNWTps, 1, 1)))
-            || (StringConstants.SERVICE_TYPE_100GE_S.equals(this.otnServiceType)
-                && (mode.equals("intermediate") && checkSwPool(availableXpdrClientTps, availableXpdrNWTps, 0, 2)))
-            ) {
-            this.valid = true;
-        } else {
-            this.valid = false;
+    private String xpdrNetTpCreation(TerminationPoint1 ontTp1) {
+        if (SERVICE_TYPE_ODU_LIST.contains(this.otnServiceType)
+                || StringConstants.SERVICE_TYPE_100GE_S.equals(this.otnServiceType)) {
+                // TODO verify the capability of network port to support ODU4 CTP interface creation
+            if (checkTpForOdtuTermination(ontTp1)) {
+                //success
+                return null;
+            }
+            return "ODU4";
+        }
+        if (SERVICE_TYPE_ETH_TS_NB_MAP.containsKey(this.otnServiceType)) {
+            if (checkOdtuTTPforLoOduCreation(
+                    ontTp1,
+                    SERVICE_TYPE_ETH_TS_NB_MAP.get(this.otnServiceType))) {
+                //success
+                return null;
+            }
+            return SERVICE_TYPE_ETH_ODU_STRING_MAP.get(this.otnServiceType);
         }
+        //failure
+        return "any";
     }
 
-    private boolean checkSwPool(List<TpId> clientTps, List<TpId> netwTps, int nbClient, int nbNetw) {
-        if (clientTps != null && netwTps != null && nbClient == 1 && nbNetw == 1) {
-            clientTps.sort(Comparator.comparing(TpId::getValue));
-            netwTps.sort(Comparator.comparing(TpId::getValue));
+    private boolean checkSwPool(List<TpId> netwTps, List<TpId> clientTps) {
+
+        if (SERVICE_TYPE_ODU_LIST.contains(this.otnServiceType)) {
+            return true;
+        }
+        if (!SERVICE_TYPE_ETH_CLASS_MAP.containsKey(this.otnServiceType)) {
+            return false;
+        }
+        if (netwTps == null) {
+            return false;
+        }
+        Node1 node1 = node.augmentation(Node1.class);
+        if (node1 == null) {
+            return false;
+        }
+        List<NonBlockingList> nblList = new ArrayList<>(
+                node1.getSwitchingPools().nonnullOduSwitchingPools()
+                        .values().stream().findFirst().get()
+                                .getNonBlockingList().values());
+        if (nblList == null) {
+            return false;
+        }
+        netwTps.sort(Comparator.comparing(TpId::getValue));
+
+        switch (modeType) {
+
+            case INTERMEDIATE_MODETYPE:
+                return checkIntermediateSwPool(nblList, netwTps);
+
+            case AZ_MODETYPE:
+                if (clientTps == null) {
+                    return false;
+                }
+                clientTps.sort(Comparator.comparing(TpId::getValue));
+                return checkAzSwPool(nblList, netwTps, clientTps);
+
+            default:
+                LOG.error("Unsupported mode type {}", modeType);
+                return false;
+        }
+    }
+
+
+    private boolean checkIntermediateSwPool(List<NonBlockingList> nblList, List<TpId> netwTps) {
+        for (NonBlockingList nbl: nblList) {
             for (TpId nwTp : netwTps) {
-                for (TpId clTp : clientTps) {
-                    @Nullable
-                    List<NonBlockingList> nblList = new ArrayList<>(node.augmentation(Node1.class).getSwitchingPools()
-                        .nonnullOduSwitchingPools().values().stream().findFirst().get().getNonBlockingList().values());
-                    for (NonBlockingList nbl : nblList) {
-                        if (nbl.getTpList().contains(clTp) && nbl.getTpList().contains(nwTp)) {
-                            usableXpdrClientTps.add(clTp);
-                            usableXpdrNWTps.add(nwTp);
-                        }
-                        if (usableXpdrClientTps.size() >= nbClient && usableXpdrNWTps.size() >= nbNetw) {
-                            clientPerNwTp.put(nwTp.getValue(), clTp.getValue());
-                            return true;
-                        }
-                    }
+                if (nbl.getTpList().contains(nwTp)) {
+                    usableXpdrNWTps.add(nwTp);
+                }
+                if (usableXpdrNWTps.size() >= 2) {
+                    return true;
                 }
             }
-
         }
-        if (netwTps != null && nbClient == 0 && nbNetw == 2) {
-            netwTps.sort(Comparator.comparing(TpId::getValue));
-            @Nullable
-            List<NonBlockingList> nblList = new ArrayList<>(node.augmentation(Node1.class).getSwitchingPools()
-                .nonnullOduSwitchingPools().values().stream().findFirst().get().getNonBlockingList().values());
-            for (NonBlockingList nbl : nblList) {
-                for (TpId nwTp : netwTps) {
-                    if (nbl.getTpList().contains(nwTp)) {
+        return false;
+    }
+
+
+    private boolean checkAzSwPool(List<NonBlockingList> nblList, List<TpId> netwTps, List<TpId> clientTps) {
+        for (NonBlockingList nbl: nblList) {
+            for (TpId nwTp : netwTps) {
+                for (TpId clTp : clientTps) {
+                    if (nbl.getTpList().contains(clTp)
+                            && nbl.getTpList().contains(nwTp)) {
+                        usableXpdrClientTps.add(clTp);
                         usableXpdrNWTps.add(nwTp);
                     }
-                    if (usableXpdrNWTps.size() >= nbNetw) {
+                    if (usableXpdrClientTps.size() >= 1
+                            && usableXpdrNWTps.size() >= 1
+                            && (this.clientPort == null || this.clientPort.equals(clTp.getValue()))) {
+                        clientPerNwTp.put(nwTp.getValue(), clTp.getValue());
                         return true;
                     }
                 }
@@ -263,12 +319,13 @@ public class PceOtnNode implements PceNode {
     }
 
     private boolean checkTpForOdtuTermination(TerminationPoint1 ontTp1) {
-        for (SupportedInterfaceCapability sic : ontTp1.getTpSupportedInterfaces().getSupportedInterfaceCapability()
-                .values()) {
+        for (SupportedInterfaceCapability sic :
+                ontTp1.getTpSupportedInterfaces().getSupportedInterfaceCapability().values()) {
             LOG.info("in checkTpForOduTermination - sic = {}", sic.getIfCapType());
-            if ((sic.getIfCapType().equals(IfOCHOTU4ODU4.class) || sic.getIfCapType().equals(IfOtsiOtsigroup.class))
-                && (ontTp1.getXpdrTpPortConnectionAttributes() == null
-                    || ontTp1.getXpdrTpPortConnectionAttributes().getTsPool() == null)) {
+            if ((sic.getIfCapType().equals(IfOCHOTU4ODU4.class)
+                    || sic.getIfCapType().equals(IfOtsiOtsigroup.class))
+                    && (ontTp1.getXpdrTpPortConnectionAttributes() == null
+                        || ontTp1.getXpdrTpPortConnectionAttributes().getTsPool() == null)) {
                 return true;
             }
         }
@@ -276,46 +333,30 @@ public class PceOtnNode implements PceNode {
     }
 
     private boolean checkOdtuTTPforLoOduCreation(TerminationPoint1 ontTp1, int tsNb) {
-        return (ontTp1.getXpdrTpPortConnectionAttributes() != null
-            && ontTp1.getXpdrTpPortConnectionAttributes().getTsPool() != null
-            && ontTp1.getXpdrTpPortConnectionAttributes().getOdtuTpnPool() != null
-            && (ontTp1.getXpdrTpPortConnectionAttributes().getOdtuTpnPool().values()
-                .stream().findFirst().get().getOdtuType()
-                .equals(ODTU4TsAllocated.class)
-                ||
-                ontTp1.getXpdrTpPortConnectionAttributes().getOdtuTpnPool().values()
-                .stream().findFirst().get().getOdtuType()
-                .equals(ODTUCnTs.class))
-            && !ontTp1.getXpdrTpPortConnectionAttributes().getOdtuTpnPool().values()
-                .stream().findFirst().get().getTpnPool().isEmpty()
-            && (ontTp1.getXpdrTpPortConnectionAttributes().getTsPool().size() >= tsNb));
+        XpdrTpPortConnectionAttributes portConAttr = ontTp1.getXpdrTpPortConnectionAttributes();
+        if (portConAttr == null
+                || portConAttr.getTsPool() == null
+                || portConAttr.getTsPool().size() < tsNb
+                || portConAttr.getOdtuTpnPool() == null) {
+            return false;
+        }
+        return checkFirstOdtuTpn(portConAttr.getOdtuTpnPool().values().stream().findFirst().get());
+    }
+
+    private boolean checkFirstOdtuTpn(OdtuTpnPool otPool) {
+        return (otPool.getOdtuType().getSimpleName().equals(ODTU4TsAllocated.class.getSimpleName())
+                || otPool.getOdtuType().getSimpleName().equals(ODTUCnTs.class.getSimpleName()))
+            && !otPool.getTpnPool().isEmpty();
     }
 
     private boolean checkClientTp(TerminationPoint1 ontTp1) {
-        for (SupportedInterfaceCapability sic : ontTp1.getTpSupportedInterfaces().getSupportedInterfaceCapability()
-                .values()) {
+        for (SupportedInterfaceCapability sic :
+                ontTp1.getTpSupportedInterfaces().getSupportedInterfaceCapability().values()) {
             LOG.debug("in checkTpForOduTermination - sic = {}", sic.getIfCapType());
-            switch (otnServiceType) {
-                case StringConstants.SERVICE_TYPE_1GE:
-                // we could also check the administrative status of the tp
-                    if (sic.getIfCapType().equals(If1GEODU0.class)) {
-                        return true;
-                    }
-                    break;
-                case StringConstants.SERVICE_TYPE_10GE:
-                    if (sic.getIfCapType().equals(If10GEODU2e.class)) {
-                        return true;
-                    }
-                    break;
-                case StringConstants.SERVICE_TYPE_100GE_T:
-                case StringConstants.SERVICE_TYPE_100GE_M:
-                case StringConstants.SERVICE_TYPE_100GE_S:
-                    if (sic.getIfCapType().equals(If100GEODU4.class)) {
-                        return true;
-                    }
-                    break;
-                default:
-                    break;
+            // we could also check the administrative status of the tp
+            if (SERVICE_TYPE_ETH_CLASS_MAP.get(otnServiceType).getSimpleName()
+                    .equals(sic.getIfCapType().getSimpleName())) {
+                return true;
             }
         }
         return false;
@@ -325,46 +366,39 @@ public class PceOtnNode implements PceNode {
         if (!isValid()) {
             return;
         }
-        if (this.nodeId.getValue().equals(anodeId) || (this.nodeId.getValue().equals(znodeId))) {
-            initXndrTps("AZ");
+        if (this.nodeId.getValue().equals(anodeId)
+                || (this.nodeId.getValue().equals(znodeId))) {
+            initXndrTps(AZ_MODETYPE);
         } else if (OpenroadmNodeType.SWITCH.equals(this.nodeType)) {
-            initXndrTps("intermediate");
+            initXndrTps(INTERMEDIATE_MODETYPE);
         } else {
             LOG.info("validateAZxponder: XPONDER is ignored == {}", nodeId.getValue());
             valid = false;
         }
     }
 
-    public boolean validateSwitchingPoolBandwidth(
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
-                    .ietf.network.topology.rev180226.networks.network.node.TerminationPoint tp1,
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang
-                    .ietf.network.topology.rev180226.networks.network.node.TerminationPoint tp2,
-            Long neededBW) {
+    public boolean validateSwitchingPoolBandwidth(TerminationPoint tp1, TerminationPoint tp2, Long neededBW) {
         if (this.nodeType != OpenroadmNodeType.TPDR) {
             return true;
         }
-        org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.Node1 node1 =
-            node.augmentation(
-                    org.opendaylight.yang.gen.v1.http.org.openroadm.otn.network.topology.rev200529.Node1.class);
-        SwitchingPools sp = node1.getSwitchingPools();
-        List<OduSwitchingPools> osp = new ArrayList<>(sp.nonnullOduSwitchingPools().values());
-        for (OduSwitchingPools ospx : osp) {
-            List<NonBlockingList> nbl = new ArrayList<>(ospx.nonnullNonBlockingList().values());
-            for (NonBlockingList nbll : nbl) {
-                if (nbll.getAvailableInterconnectBandwidth().toJava() >= neededBW && nbll.getTpList() != null
-                        && nbll.getTpList().contains(tp1.getTpId()) && nbll.getTpList().contains(tp2.getTpId())) {
+        for (OduSwitchingPools ospx :
+                node.augmentation(Node1.class)
+                    .getSwitchingPools()
+                    .nonnullOduSwitchingPools().values()) {
+            for (NonBlockingList nbll : ospx.nonnullNonBlockingList().values()) {
+                if (nbll.getAvailableInterconnectBandwidth().toJava() >= neededBW
+                        && nbll.getTpList() != null
+                        && nbll.getTpList().contains(tp1.getTpId())
+                        && nbll.getTpList().contains(tp2.getTpId())) {
                     LOG.debug("validateSwitchingPoolBandwidth: couple  of tp {} x {} valid for crossconnection",
                         tp1.getTpId(), tp2.getTpId());
                     return true;
                 }
             }
         }
-
         LOG.debug("validateSwitchingPoolBandwidth: No valid Switching pool for crossconnecting tp {} and {}",
             tp1.getTpId(), tp2.getTpId());
         return false;
-
     }
 
     public void validateIntermediateSwitch() {
@@ -375,122 +409,70 @@ public class PceOtnNode implements PceNode {
             return;
         }
         // Validate switch for use as an intermediate XPONDER on the path
-        initXndrTps("intermediate");
-        if (!this.valid) {
-            LOG.debug("validateIntermediateSwitch: Switch unusable for transit == {}", nodeId.getValue());
-        } else {
+        initXndrTps(INTERMEDIATE_MODETYPE);
+        if (this.valid) {
             LOG.info("validateIntermediateSwitch: Switch usable for transit == {}", nodeId.getValue());
+        } else {
+            LOG.debug("validateIntermediateSwitch: Switch unusable for transit == {}", nodeId.getValue());
         }
     }
 
     public void checkAvailableTribPort() {
-        List<TerminationPoint> networkTpList = node.augmentation(
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Node1.class)
-            .getTerminationPoint().values().stream()
-            .filter(type -> type
-                .augmentation(
-                    org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529.TerminationPoint1.class)
-                .getTpType().equals(OpenroadmTpType.XPONDERNETWORK))
-            .collect(Collectors.toList());
-
-        for (TerminationPoint tp : networkTpList) {
-            if (tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes() != null
-                && tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes().getOdtuTpnPool() != null
-                && (tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes().getOdtuTpnPool()
-                    .values().stream().findFirst().get().getOdtuType().equals(ODTU4TsAllocated.class)
-                    || tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes().getOdtuTpnPool()
-                    .values().stream().findFirst().get().getOdtuType().equals(ODTUCnTs.class))) {
-                @Nullable
-                List<Uint16> tpnPool = tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes()
-                    .getOdtuTpnPool().values().stream().findFirst().get().getTpnPool();
-                if (tpnPool != null) {
-                    tpAvailableTribPort.put(tp.getTpId().getValue(), tpnPool);
+        for (TerminationPoint tp :
+            node.augmentation(
+                    org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226
+                        .Node1.class)
+                .getTerminationPoint().values().stream()
+                .filter(type -> type
+                    .augmentation(
+                        org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210
+                            .TerminationPoint1.class)
+                    .getTpType()
+                    .equals(OpenroadmTpType.XPONDERNETWORK))
+                .collect(Collectors.toList())) {
+            XpdrTpPortConnectionAttributes portConAttr =
+                tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes();
+            if (portConAttr != null && portConAttr.getOdtuTpnPool() != null) {
+                OdtuTpnPool otPool = portConAttr.getOdtuTpnPool().values().stream().findFirst().get();
+                if (checkFirstOdtuTpn(otPool)) {
+                    tpAvailableTribPort.put(tp.getTpId().getValue(), otPool.getTpnPool());
                 }
             }
         }
     }
 
     public void checkAvailableTribSlot() {
-        List<TerminationPoint> networkTpList = node.augmentation(
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Node1.class)
+        for (TerminationPoint tp :
+            node.augmentation(
+                org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226
+                    .Node1.class)
             .getTerminationPoint().values().stream()
             .filter(type -> type
                 .augmentation(
-                    org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev200529.TerminationPoint1.class)
+                    org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev211210
+                        .TerminationPoint1.class)
                 .getTpType().equals(OpenroadmTpType.XPONDERNETWORK))
-            .collect(Collectors.toList());
-
-        for (TerminationPoint tp : networkTpList) {
-            if (tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes() != null
-                && tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes().getTsPool() != null) {
-                @Nullable
-                List<Uint16> tsPool = tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes()
-                    .getTsPool();
-                tpAvailableTribSlot.put(tp.getTpId().getValue(), tsPool);
+            .collect(Collectors.toList())
+        ) {
+            XpdrTpPortConnectionAttributes portConAttr =
+                tp.augmentation(TerminationPoint1.class).getXpdrTpPortConnectionAttributes();
+            if (portConAttr != null && portConAttr.getTsPool() != null) {
+                tpAvailableTribSlot.put(tp.getTpId().getValue(), portConAttr.getTsPool());
             }
         }
     }
 
     public boolean isValid() {
-        if ((node == null) || (nodeId == null) || (nodeType == null) || (this.getSupNetworkNodeId() == null)
-            || (this.getSupClliNodeId() == null)) {
+        if (nodeId == null
+                || nodeType == null
+                || this.getSupNetworkNodeId() == null
+                || this.getSupClliNodeId() == null) {
             LOG.error("PceNode: one of parameters is not populated : nodeId, node type, supporting nodeId");
             valid = false;
         }
         return valid;
     }
 
-    public boolean isPceOtnNodeValid(final PceOtnNode pceOtnNode) {
-        if (pceOtnNode == null || pceOtnNode.node == null
-            || pceOtnNode.getNodeId() == null || pceOtnNode.nodeType == null || pceOtnNode.getSupNetworkNodeId() == null
-            || pceOtnNode.getSupClliNodeId() == null || pceOtnNode.otnServiceType == null) {
-            LOG.error(
-                "PceOtnNode: one of parameters is not populated : nodeId, node type, supporting nodeId, otnServiceType"
-            );
-            return false;
-        }
-
-        if (!isNodeTypeValid(pceOtnNode)) {
-            LOG.error("PceOtnNode node type: node type isn't one of MUXPDR or SWITCH or TPDR");
-            return false;
-        }
-
-        return isOtnServiceTypeValid(pceOtnNode);
-    }
-
-    private boolean isOtnServiceTypeValid(PceOtnNode pceOtnNode) {
-        if (pceOtnNode.modeType == null) {
-            return false;
-        }
-
-        //Todo refactor Strings (mode and otnServiceType ) to enums
-        if ((pceOtnNode.otnServiceType.equals(StringConstants.SERVICE_TYPE_ODU4)
-                && pceOtnNode.modeType.equals("AZ"))) {
-            return true;
-        }
-
-        return ((pceOtnNode.otnServiceType.equals(StringConstants.SERVICE_TYPE_10GE)
-                || pceOtnNode.otnServiceType.equals(StringConstants.SERVICE_TYPE_1GE)
-                || pceOtnNode.otnServiceType.equals(StringConstants.SERVICE_TYPE_100GE_S))
-                && (isAz(pceOtnNode) || isIntermediate(pceOtnNode)));
-    }
-
-    private boolean isIntermediate(PceOtnNode pceOtnNode) {
-        return pceOtnNode.modeType.equals("intermediate")
-                && checkSwPool(null, pceOtnNode.availableXpdrNWTps, 0, 2);
-    }
-
-    private boolean isAz(PceOtnNode pceOtnNode) {
-        return pceOtnNode.modeType.equals("AZ")
-                && checkSwPool(pceOtnNode.availableXpdrClientTps, pceOtnNode.availableXpdrNWTps, 1, 1);
-    }
-
-    private boolean isNodeTypeValid(final PceOtnNode pceOtnNode) {
-        return (pceOtnNode.nodeType == OpenroadmNodeType.MUXPDR)
-                || (pceOtnNode.nodeType  == OpenroadmNodeType.SWITCH)
-                || (pceOtnNode.nodeType  == OpenroadmNodeType.TPDR);
-    }
-
     @Override
     public void addOutgoingLink(PceLink outLink) {
         this.outgoingLinks.add(outLink);
@@ -559,7 +541,7 @@ public class PceOtnNode implements PceNode {
     }
 
     @Override
-    public String getRdmSrgClient(String tp) {
+    public String getRdmSrgClient(String tp, String direction) {
         return null;
     }