Minor log clean-up and method name change to align to OVS
[genius.git] / itm / itm-impl / src / main / java / org / opendaylight / genius / itm / confighelpers / ItmExternalTunnelAddWorker.java
index ff7315eae39ec1b6899a2a99def0a957700ff51d..81c7ba8adb348cfbbd871e3990c1cf62e93adb2a 100644 (file)
@@ -8,26 +8,31 @@
 package org.opendaylight.genius.itm.confighelpers;
 
 import com.google.common.base.Optional;
-import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.ListenableFuture;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.math.BigInteger;
 import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.List;
 import org.apache.commons.net.util.SubnetUtils;
 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.genius.itm.cache.DPNTEPsInfoCache;
 import org.opendaylight.genius.itm.globals.ITMConstants;
 import org.opendaylight.genius.itm.impl.ItmUtils;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddressBuilder;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpPrefix;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.Interfaces;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.idmanager.rev160406.IdManagerService;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelMonitoringTypeBase;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeBase;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeVxlan;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.tunnel.optional.params.TunnelOptions;
+import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.config.rev160406.ItmConfig;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.ExternalTunnelList;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.DPNTEPsInfo;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.itm.op.rev160406.dpn.endpoints.dpn.teps.info.TunnelEndPoints;
@@ -47,46 +52,35 @@ import org.slf4j.LoggerFactory;
 public class ItmExternalTunnelAddWorker {
     private static final Logger LOG = LoggerFactory.getLogger(ItmExternalTunnelAddWorker.class);
 
-    private static Boolean monitorEnabled;
-    private static Integer monitorInterval;
-    private static Class<? extends TunnelMonitoringTypeBase> monitorProtocol;
+    private final DataBroker dataBroker;
+    private final ItmConfig itmConfig;
+    private final DPNTEPsInfoCache dpnTEPsInfoCache;
 
-    private static final FutureCallback<Void> DEFAULT_CALLBACK =
-        new FutureCallback<Void>() {
-            @Override
-            public void onSuccess(Void result) {
-                LOG.debug("Success in Datastore operation");
-            }
-
-            @Override
-            public void onFailure(Throwable error) {
-                LOG.error("Error in Datastore operation", error);
-            }
-
-    };
+    public ItmExternalTunnelAddWorker(DataBroker dataBroker, ItmConfig itmConfig, DPNTEPsInfoCache dpnTEPsInfoCache) {
+        this.dataBroker = dataBroker;
+        this.itmConfig = itmConfig;
+        this.dpnTEPsInfoCache = dpnTEPsInfoCache;
+    }
 
-    public static List<ListenableFuture<Void>> buildTunnelsToExternalEndPoint(DataBroker dataBroker,
-                                                                              IdManagerService idManagerService,
-                                                                              List<DPNTEPsInfo> cfgDpnList,
-                                                                              IpAddress extIp,
-                                                                              Class<? extends TunnelTypeBase> tunType) {
-        List<ListenableFuture<Void>> futures = new ArrayList<>();
-        WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
+    public List<ListenableFuture<Void>> buildTunnelsToExternalEndPoint(Collection<DPNTEPsInfo> cfgDpnList,
+            IpAddress extIp, Class<? extends TunnelTypeBase> tunType) {
         if (null != cfgDpnList) {
+            WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
             for (DPNTEPsInfo teps : cfgDpnList) {
                 // CHECK -- Assumption -- Only one End Point / Dpn for GRE/Vxlan Tunnels
                 TunnelEndPoints firstEndPt = teps.getTunnelEndPoints().get(0);
                 String interfaceName = firstEndPt.getInterfaceName();
                 String tunTypeStr = tunType.getName();
-                String trunkInterfaceName = ItmUtils.getTrunkInterfaceName(idManagerService, interfaceName,
+                String trunkInterfaceName = ItmUtils.getTrunkInterfaceName(interfaceName,
                         new String(firstEndPt.getIpAddress().getValue()),
                         new String(extIp.getValue()), tunTypeStr);
                 char[] subnetMaskArray = firstEndPt.getSubnetMask().getValue();
                 boolean useOfTunnel = ItmUtils.falseIfNull(firstEndPt.isOptionOfTunnel());
+                List<TunnelOptions> tunOptions = ItmUtils.buildTunnelOptions(firstEndPt, itmConfig);
                 String subnetMaskStr = String.valueOf(subnetMaskArray);
                 SubnetUtils utils = new SubnetUtils(subnetMaskStr);
                 String dcGwyIpStr = String.valueOf(extIp.getValue());
-                IpAddress gatewayIpObj = new IpAddress("0.0.0.0".toCharArray());
+                IpAddress gatewayIpObj = IpAddressBuilder.getDefaultInstance("0.0.0.0");
                 IpAddress gwyIpAddress =
                         utils.getInfo().isInRange(dcGwyIpStr) ? gatewayIpObj : firstEndPt.getGwIpAddress();
                 LOG.debug(" Creating Trunk Interface with parameters trunk I/f Name - {}, parent I/f name - {},"
@@ -95,7 +89,7 @@ public class ItmExternalTunnelAddWorker {
                 Interface iface = ItmUtils.buildTunnelInterface(teps.getDPNID(), trunkInterfaceName,
                     String.format("%s %s", ItmUtils.convertTunnelTypetoString(tunType), "Trunk Interface"), true,
                     tunType, firstEndPt.getIpAddress(), extIp, gwyIpAddress, firstEndPt.getVLANID(), false, false,
-                    ITMConstants.DEFAULT_MONITOR_PROTOCOL, null, useOfTunnel);
+                    ITMConstants.DEFAULT_MONITOR_PROTOCOL, null, useOfTunnel, tunOptions);
 
                 LOG.debug(" Trunk Interface builder - {} ", iface);
                 InstanceIdentifier<Interface> trunkIdentifier = ItmUtils.buildId(trunkInterfaceName);
@@ -104,46 +98,37 @@ public class ItmExternalTunnelAddWorker {
                 transaction.merge(LogicalDatastoreType.CONFIGURATION, trunkIdentifier, iface, true);
                 // update external_tunnel_list ds
                 InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(ExternalTunnelList.class)
-                        .child(ExternalTunnel.class, new ExternalTunnelKey(extIp.toString(),
+                        .child(ExternalTunnel.class, new ExternalTunnelKey(String.valueOf(extIp.getValue()),
                                 teps.getDPNID().toString(), tunType));
-                ExternalTunnel tnl = ItmUtils.buildExternalTunnel(teps.getDPNID().toString(), extIp.toString(),
-                        tunType, trunkInterfaceName);
+                ExternalTunnel tnl = ItmUtils.buildExternalTunnel(teps.getDPNID().toString(),
+                    String.valueOf(extIp.getValue()), tunType, trunkInterfaceName);
                 transaction.merge(LogicalDatastoreType.CONFIGURATION, path, tnl, true);
             }
-            futures.add(transaction.submit());
+            return Collections.singletonList(transaction.submit());
         }
-        return futures;
+        return Collections.emptyList();
     }
 
-    public static List<ListenableFuture<Void>> buildTunnelsFromDpnToExternalEndPoint(DataBroker dataBroker,
-                                                                                     IdManagerService idManagerService,
-                                                                                     List<BigInteger> dpnId,
-                                                                                     IpAddress extIp,
-                                                                                     Class<? extends TunnelTypeBase>
-                                                                                             tunType) {
-        List<ListenableFuture<Void>> futures = new ArrayList<>();
-        List<DPNTEPsInfo> cfgDpnList = dpnId == null ? ItmUtils.getTunnelMeshInfo(dataBroker)
-                        : ItmUtils.getDpnTepListFromDpnId(dataBroker, dpnId);
-        futures = buildTunnelsToExternalEndPoint(dataBroker, idManagerService, cfgDpnList, extIp, tunType);
-        return futures;
+    public List<ListenableFuture<Void>> buildTunnelsFromDpnToExternalEndPoint(List<BigInteger> dpnId, IpAddress extIp,
+            Class<? extends TunnelTypeBase> tunType) {
+        Collection<DPNTEPsInfo> cfgDpnList = dpnId == null ? dpnTEPsInfoCache.getAllPresent()
+                        : ItmUtils.getDpnTepListFromDpnId(dpnTEPsInfoCache, dpnId);
+        return buildTunnelsToExternalEndPoint(cfgDpnList, extIp, tunType);
     }
 
-    public static List<ListenableFuture<Void>> buildHwVtepsTunnels(DataBroker dataBroker,
-                                                                   IdManagerService idManagerService,
-                                                                   List<DPNTEPsInfo> cfgdDpnList,
-                                                                   List<HwVtep> cfgdHwVteps) {
+    public List<ListenableFuture<Void>> buildHwVtepsTunnels(List<DPNTEPsInfo> cfgdDpnList, List<HwVtep> cfgdHwVteps) {
+        Integer monitorInterval = ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL;
+        Class<? extends TunnelMonitoringTypeBase> monitorProtocol = ITMConstants.DEFAULT_MONITOR_PROTOCOL;
+
         List<ListenableFuture<Void>> futures = new ArrayList<>();
         WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
-        monitorInterval = ITMConstants.BFD_DEFAULT_MONITOR_INTERVAL;
-        monitorProtocol = ITMConstants.DEFAULT_MONITOR_PROTOCOL;
-        monitorEnabled = ItmUtils.readMonitoringStateFromCache(dataBroker);
         if (null != cfgdDpnList && !cfgdDpnList.isEmpty()) {
-            LOG.trace("calling tunnels from css {}",cfgdDpnList);
-            tunnelsFromCSS(cfgdDpnList, idManagerService , futures, writeTransaction , dataBroker);
+            LOG.trace("calling tunnels from OVS {}",cfgdDpnList);
+            tunnelsFromOVS(cfgdDpnList, writeTransaction, monitorInterval, monitorProtocol);
         }
         if (null != cfgdHwVteps && !cfgdHwVteps.isEmpty()) {
             LOG.trace("calling tunnels from hwTep {}",cfgdHwVteps);
-            tunnelsFromhWVtep(cfgdHwVteps, idManagerService, futures, writeTransaction, dataBroker);
+            tunnelsFromhWVtep(cfgdHwVteps, writeTransaction, monitorInterval, monitorProtocol);
         }
 
         if (cfgdDpnList != null && !cfgdDpnList.isEmpty() || cfgdHwVteps != null && !cfgdHwVteps.isEmpty()) {
@@ -152,28 +137,24 @@ public class ItmExternalTunnelAddWorker {
         return futures;
     }
 
-    private static void tunnelsFromCSS(List<DPNTEPsInfo> cfgdDpnList, IdManagerService idManagerService,
-                                       List<ListenableFuture<Void>> futures, WriteTransaction transaction,
-                                       DataBroker dataBroker) {
-        Boolean monitorEnabled = ItmUtils.readMonitoringStateFromCache(dataBroker);
-        Class<? extends TunnelMonitoringTypeBase> monitorProtocol = ITMConstants.DEFAULT_MONITOR_PROTOCOL;
+    private void tunnelsFromOVS(List<DPNTEPsInfo> cfgdDpnList, WriteTransaction transaction, Integer monitorInterval,
+                                Class<? extends TunnelMonitoringTypeBase> monitorProtocol) {
         for (DPNTEPsInfo dpn : cfgdDpnList) {
             LOG.trace("processing dpn {}" , dpn);
             if (dpn.getTunnelEndPoints() != null && !dpn.getTunnelEndPoints().isEmpty()) {
                 for (TunnelEndPoints tep : dpn.getTunnelEndPoints()) {
                     for (TzMembership zone: tep.getTzMembership()) {
-                        createTunnelsFromOVSinTransportZone(zone.getZoneName(), dpn, tep, idManagerService,
-                                futures, transaction, dataBroker);
+                        createTunnelsFromOVSinTransportZone(zone.getZoneName(), dpn, tep,
+                                transaction, monitorInterval, monitorProtocol);
                     }
                 }
             }
         }
     }
 
-    private static void createTunnelsFromOVSinTransportZone(String zoneName, DPNTEPsInfo dpn, TunnelEndPoints tep,
-                                                            IdManagerService idManagerService,
-                                                            List<ListenableFuture<Void>> futures,
-                                                            WriteTransaction transaction, DataBroker dataBroker) {
+    private void createTunnelsFromOVSinTransportZone(String zoneName, DPNTEPsInfo dpn, TunnelEndPoints tep,
+            WriteTransaction transaction, Integer monitorInterval,
+            Class<? extends TunnelMonitoringTypeBase> monitorProtocol) {
         InstanceIdentifier<TransportZone> tzonePath = InstanceIdentifier.builder(TransportZones.class)
                 .child(TransportZone.class, new TransportZoneKey(zoneName)).build();
         Optional<TransportZone> transportZoneOptional = ItmUtils.read(LogicalDatastoreType.CONFIGURATION,
@@ -196,8 +177,8 @@ public class ItmExternalTunnelAddWorker {
                             if (!wireUp(dpn.getDPNID(), tep.getPortname(), sub.getVlanId(),
                                     tep.getIpAddress(), useOfTunnel, nodeId, hwVtepDS.getIpAddress(),
                                     tep.getSubnetMask(), sub.getGatewayIp(), sub.getPrefix(),
-                                    transportZone.getTunnelType(), false, monitorProtocol, monitorInterval,
-                                    idManagerService, dataBroker, futures, transaction)) {
+                                    transportZone.getTunnelType(), false, monitorInterval, monitorProtocol,
+                                    transaction)) {
                                 LOG.error("Unable to build tunnel {} -- {}",
                                         tep.getIpAddress(), hwVtepDS.getIpAddress());
                             }
@@ -205,8 +186,8 @@ public class ItmExternalTunnelAddWorker {
                             LOG.trace("wire up {} and {}", hwVtepDS,tep);
                             if (!wireUp(hwVtepDS.getTopologyId(), hwVtepDS.getNodeId(), hwVtepDS.getIpAddress(),
                                     cssID, tep.getIpAddress(), sub.getPrefix(), sub.getGatewayIp(),
-                                    tep.getSubnetMask(), transportZone.getTunnelType(), false, monitorProtocol,
-                                    monitorInterval, idManagerService, dataBroker, futures, transaction)) {
+                                    tep.getSubnetMask(), transportZone.getTunnelType(), false, monitorInterval,
+                                    monitorProtocol, transaction)) {
                                 LOG.error("Unable to build tunnel {} -- {}",
                                         hwVtepDS.getIpAddress(), tep.getIpAddress());
                             }
@@ -218,17 +199,14 @@ public class ItmExternalTunnelAddWorker {
         }
     }
 
-    private static void tunnelsFromhWVtep(List<HwVtep> cfgdHwVteps, IdManagerService idManagerService,
-                                          List<ListenableFuture<Void>> futures, WriteTransaction transaction,
-                                          DataBroker dataBroker) {
+    private void tunnelsFromhWVtep(List<HwVtep> cfgdHwVteps, WriteTransaction transaction,
+            Integer monitorInterval, Class<? extends TunnelMonitoringTypeBase> monitorProtocol) {
         for (HwVtep hwTep : cfgdHwVteps) {
             InstanceIdentifier<TransportZone> tzonePath = InstanceIdentifier.builder(TransportZones.class)
                     .child(TransportZone.class, new TransportZoneKey(hwTep.getTransportZone())).build();
             Optional<TransportZone> transportZoneOptional = ItmUtils.read(LogicalDatastoreType.CONFIGURATION,
                     tzonePath, dataBroker);
             Class<? extends TunnelTypeBase> tunType = TunnelTypeVxlan.class;
-            Boolean monitorEnabled = ItmUtils.readMonitoringStateFromCache(dataBroker);
-            Class<? extends TunnelMonitoringTypeBase> monitorProtocol = ITMConstants.DEFAULT_MONITOR_PROTOCOL;
             if (transportZoneOptional.isPresent()) {
                 TransportZone tzone = transportZoneOptional.get();
                 //do we need to check tunnel type?
@@ -240,19 +218,19 @@ public class ItmExternalTunnelAddWorker {
                                     continue;//dont mesh with self
                                 }
                                 LOG.trace("wire up {} and {}",hwTep, hwVtepDS);
-                                if (!wireUp(hwTep.getTopo_id(), hwTep.getNode_id(), hwTep.getHwIp(),
+                                if (!wireUp(hwTep.getTopoId(), hwTep.getNodeId(), hwTep.getHwIp(),
                                         hwVtepDS.getNodeId(), hwVtepDS.getIpAddress(), hwTep.getIpPrefix(),
-                                        hwTep.getGatewayIP(), sub.getPrefix(), tunType,false,monitorProtocol,
-                                        monitorInterval, idManagerService, dataBroker, futures, transaction)) {
+                                        hwTep.getGatewayIP(), sub.getPrefix(), tunType, false,
+                                        monitorInterval, monitorProtocol, transaction)) {
                                     LOG.error("Unable to build tunnel {} -- {}",
                                             hwTep.getHwIp(), hwVtepDS.getIpAddress());
                                 }
                                 //TOR2-TOR1
                                 LOG.trace("wire up {} and {}", hwVtepDS,hwTep);
-                                if (!wireUp(hwTep.getTopo_id(), hwVtepDS.getNodeId(), hwVtepDS.getIpAddress(),
-                                        hwTep.getNode_id(), hwTep.getHwIp(), sub.getPrefix(), sub.getGatewayIp(),
-                                        hwTep.getIpPrefix(), tunType, false, monitorProtocol, monitorInterval,
-                                        idManagerService, dataBroker, futures, transaction)) {
+                                if (!wireUp(hwTep.getTopoId(), hwVtepDS.getNodeId(), hwVtepDS.getIpAddress(),
+                                        hwTep.getNodeId(), hwTep.getHwIp(), sub.getPrefix(), sub.getGatewayIp(),
+                                        hwTep.getIpPrefix(), tunType, false, monitorInterval,
+                                        monitorProtocol, transaction)) {
                                     LOG.error("Unable to build tunnel {} -- {}",
                                             hwVtepDS.getIpAddress(), hwTep.getHwIp());
                                 }
@@ -266,10 +244,10 @@ public class ItmExternalTunnelAddWorker {
                                 //TOR-OVS
                                 String cssID = vtep.getDpnId().toString();
                                 LOG.trace("wire up {} and {}",hwTep, vtep);
-                                if (!wireUp(hwTep.getTopo_id(), hwTep.getNode_id(), hwTep.getHwIp(), cssID,
+                                if (!wireUp(hwTep.getTopoId(), hwTep.getNodeId(), hwTep.getHwIp(), cssID,
                                         vtep.getIpAddress(), hwTep.getIpPrefix(), hwTep.getGatewayIP(),
-                                        sub.getPrefix(), tunType,false, monitorProtocol, monitorInterval,
-                                        idManagerService, dataBroker, futures, transaction)) {
+                                        sub.getPrefix(), tunType,false, monitorInterval, monitorProtocol,
+                                        transaction)) {
                                     LOG.error("Unable to build tunnel {} -- {}",
                                             hwTep.getHwIp(), vtep.getIpAddress());
                                 }
@@ -277,10 +255,10 @@ public class ItmExternalTunnelAddWorker {
                                 LOG.trace("wire up {} and {}", vtep,hwTep);
                                 boolean useOfTunnel = ItmUtils.falseIfNull(vtep.isOptionOfTunnel());
                                 if (!wireUp(vtep.getDpnId(), vtep.getPortname(), sub.getVlanId(), vtep.getIpAddress(),
-                                        useOfTunnel, hwTep.getNode_id(),hwTep.getHwIp(),sub.getPrefix(),
-                                        sub.getGatewayIp(),hwTep.getIpPrefix(), tunType,false,monitorProtocol,
-                                        monitorInterval, idManagerService, dataBroker, futures, transaction)) {
-                                    //do nothing
+                                        useOfTunnel, hwTep.getNodeId(),hwTep.getHwIp(),sub.getPrefix(),
+                                        sub.getGatewayIp(),hwTep.getIpPrefix(), tunType, false,
+                                        monitorInterval, monitorProtocol, transaction)) {
+                                    LOG.debug("wireUp returned false");
                                 }
                             }
 
@@ -292,17 +270,15 @@ public class ItmExternalTunnelAddWorker {
     }
 
     //for tunnels from TOR device
-    private static boolean wireUp(String topoId, String srcNodeid, IpAddress srcIp, String dstNodeId, IpAddress dstIp,
-                                  IpPrefix srcSubnet, IpAddress gwIp, IpPrefix dstSubnet,
-                                  Class<? extends TunnelTypeBase> tunType,Boolean monitorEnabled,
-                                  Class<? extends TunnelMonitoringTypeBase> monitorProtocol, Integer monitorInterval,
-                                  IdManagerService idManagerService, DataBroker dataBroker,
-                                  List<ListenableFuture<Void>> futures, WriteTransaction transaction) {
-        IpAddress gatewayIpObj = new IpAddress("0.0.0.0".toCharArray());
+    private boolean wireUp(String topoId, String srcNodeid, IpAddress srcIp, String dstNodeId, IpAddress dstIp,
+            IpPrefix srcSubnet, IpAddress gwIp, IpPrefix dstSubnet, Class<? extends TunnelTypeBase> tunType,
+            Boolean monitorEnabled, Integer monitorInterval, Class<? extends TunnelMonitoringTypeBase> monitorProtocol,
+            WriteTransaction transaction) {
+        IpAddress gatewayIpObj = IpAddressBuilder.getDefaultInstance("0.0.0.0");
         IpAddress gwyIpAddress = srcSubnet.equals(dstSubnet) ? gatewayIpObj : gwIp;
         String parentIf =  ItmUtils.getHwParentIf(topoId, srcNodeid);
         String tunTypeStr = tunType.getName();
-        String tunnelIfName = ItmUtils.getTrunkInterfaceName(idManagerService, parentIf,
+        String tunnelIfName = ItmUtils.getTrunkInterfaceName(parentIf,
                 new String(srcIp.getValue()), new String(dstIp.getValue()), tunTypeStr);
         LOG.debug(" Creating ExternalTrunk Interface with parameters Name - {}, parent I/f name - {}, "
                 + "source IP - {}, destination IP - {} gateway IP - {}", tunnelIfName, parentIf, srcIp,
@@ -313,7 +289,7 @@ public class ItmExternalTunnelAddWorker {
         InstanceIdentifier<Interface> ifIID = InstanceIdentifier.builder(Interfaces.class)
                 .child(Interface.class, new InterfaceKey(tunnelIfName)).build();
         LOG.trace(" Writing Trunk Interface to Config DS {}, {} ", ifIID, hwTunnelIf);
-        ItmUtils.itmCache.addInterface(hwTunnelIf);
+        ItmUtils.ITM_CACHE.addInterface(hwTunnelIf);
         transaction.merge(LogicalDatastoreType.CONFIGURATION, ifIID, hwTunnelIf, true);
         // also update itm-state ds?
         InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(ExternalTunnelList.class)
@@ -322,34 +298,32 @@ public class ItmExternalTunnelAddWorker {
         ExternalTunnel tnl = ItmUtils.buildExternalTunnel(getExternalTunnelKey(srcNodeid),
                 getExternalTunnelKey(dstNodeId), tunType, tunnelIfName);
         transaction.merge(LogicalDatastoreType.CONFIGURATION, path, tnl, true);
-        ItmUtils.itmCache.addExternalTunnel(tnl);
+        ItmUtils.ITM_CACHE.addExternalTunnel(tnl);
         return true;
     }
 
     //for tunnels from OVS
-    private static boolean wireUp(BigInteger dpnId, String portname, Integer vlanId, IpAddress srcIp,
-                                  Boolean remoteIpFlow, String dstNodeId, IpAddress dstIp, IpPrefix srcSubnet,
-                                  IpAddress gwIp, IpPrefix dstSubnet, Class<? extends TunnelTypeBase> tunType,
-                                  Boolean monitorEnabled, Class<? extends TunnelMonitoringTypeBase> monitorProtocol,
-                                  Integer monitorInterval, IdManagerService idManagerService, DataBroker dataBroker,
-                                  List<ListenableFuture<Void>> futures, WriteTransaction transaction) {
-        IpAddress gatewayIpObj = new IpAddress("0.0.0.0".toCharArray());
+    private boolean wireUp(BigInteger dpnId, String portname, Integer vlanId, IpAddress srcIp, Boolean remoteIpFlow,
+            String dstNodeId, IpAddress dstIp, IpPrefix srcSubnet, IpAddress gwIp, IpPrefix dstSubnet,
+            Class<? extends TunnelTypeBase> tunType, Boolean monitorEnabled, Integer monitorInterval,
+            Class<? extends TunnelMonitoringTypeBase> monitorProtocol, WriteTransaction transaction) {
+        IpAddress gatewayIpObj = IpAddressBuilder.getDefaultInstance("0.0.0.0");
         IpAddress gwyIpAddress = srcSubnet.equals(dstSubnet) ? gatewayIpObj : gwIp;
         String parentIf = ItmUtils.getInterfaceName(dpnId, portname, vlanId);
         String tunTypeStr = tunType.getName();
-        String tunnelIfName = ItmUtils.getTrunkInterfaceName(idManagerService, parentIf,
+        String tunnelIfName = ItmUtils.getTrunkInterfaceName(parentIf,
                 new String(srcIp.getValue()), new String(dstIp.getValue()), tunTypeStr);
         LOG.debug(" Creating ExternalTrunk Interface with parameters Name - {}, parent I/f name - {}, "
                 + "source IP - {}, destination IP - {} gateway IP - {}", tunnelIfName, parentIf, srcIp,
                 dstIp, gwyIpAddress);
         Interface extTunnelIf = ItmUtils.buildTunnelInterface(dpnId, tunnelIfName,
                 String.format("%s %s", tunType.getName(), "Trunk Interface"), true, tunType, srcIp, dstIp, gwyIpAddress,
-                vlanId, false,monitorEnabled, monitorProtocol, monitorInterval, remoteIpFlow);
+                vlanId, false,monitorEnabled, monitorProtocol, monitorInterval, remoteIpFlow, null);
         InstanceIdentifier<Interface> ifIID = InstanceIdentifier.builder(Interfaces.class).child(Interface.class,
                 new InterfaceKey(tunnelIfName)).build();
         LOG.trace(" Writing Trunk Interface to Config DS {}, {} ", ifIID, extTunnelIf);
         transaction.merge(LogicalDatastoreType.CONFIGURATION, ifIID, extTunnelIf, true);
-        ItmUtils.itmCache.addInterface(extTunnelIf);
+        ItmUtils.ITM_CACHE.addInterface(extTunnelIf);
         InstanceIdentifier<ExternalTunnel> path = InstanceIdentifier.create(ExternalTunnelList.class)
                 .child(ExternalTunnel.class, new ExternalTunnelKey(getExternalTunnelKey(dstNodeId),
                         dpnId.toString(), tunType));
@@ -357,16 +331,17 @@ public class ItmExternalTunnelAddWorker {
                 getExternalTunnelKey(dstNodeId),
                 tunType, tunnelIfName);
         transaction.merge(LogicalDatastoreType.CONFIGURATION, path, tnl, true);
-        ItmUtils.itmCache.addExternalTunnel(tnl);
+        ItmUtils.ITM_CACHE.addExternalTunnel(tnl);
         return true;
     }
 
+    @SuppressFBWarnings("RV_CHECK_FOR_POSITIVE_INDEXOF")
     static String getExternalTunnelKey(String nodeid) {
-        if (nodeid.indexOf("physicalswitch") > 0) {
-            nodeid = nodeid.substring(0, nodeid.indexOf("physicalswitch") - 1);
+        final int index = nodeid.indexOf("physicalswitch");
+        if (index > 0) {
+            nodeid = nodeid.substring(0, index - 1);
         }
         return nodeid;
     }
 
 }
-