interfacemanager/interfacemanager-impl/src/main/java/org/opendaylight/genius/interfacemanager/rpcservice/InterfaceManagerRpcService.java

   1 /*
   2  * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.genius.interfacemanager.rpcservice;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.util.concurrent.FutureCallback;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.ListenableFuture;
  15 import com.google.common.util.concurrent.SettableFuture;
  16 import java.math.BigInteger;
  17 import java.util.ArrayList;
  18 import java.util.Arrays;
  19 import java.util.List;
  20 import java.util.concurrent.Future;
  21 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  22 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  23 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  24 import org.opendaylight.genius.interfacemanager.IfmConstants;
  25 import org.opendaylight.genius.interfacemanager.IfmUtil;
  26 import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
  27 import org.opendaylight.genius.interfacemanager.commons.InterfaceMetaUtils;
  28 import org.opendaylight.genius.mdsalutil.ActionInfo;
  29 import org.opendaylight.genius.mdsalutil.InstructionInfo;
  30 import org.opendaylight.genius.mdsalutil.InstructionType;
  31 import org.opendaylight.genius.mdsalutil.MDSALUtil;
  32 import org.opendaylight.genius.mdsalutil.MatchFieldType;
  33 import org.opendaylight.genius.mdsalutil.MatchInfo;
  34 import org.opendaylight.genius.mdsalutil.NwConstants;
  35 import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
  36 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
  37 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
  38 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.InterfaceKey;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.action.types.rev131112.action.list.Action;
  40 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
  41 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
  42 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.IfIndexesInterfaceMap;
  43 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
  44 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterfaceKey;
  45 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntry;
  46 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntryKey;
  47 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.bridge.entry.BridgeInterfaceEntry;
  48 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
  49 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefs;
  50 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeBase;
  51 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeMplsOverGre;
  52 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.CreateTerminatingServiceActionsInput;
  53 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceInput;
  54 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceOutput;
  55 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceOutputBuilder;
  56 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceInput;
  57 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceOutput;
  58 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceOutputBuilder;
  59 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceInput;
  60 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceOutput;
  61 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceOutputBuilder;
  62 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnInput;
  63 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnOutput;
  64 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnOutputBuilder;
  65 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexInput;
  66 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexOutput;
  67 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexOutputBuilder;
  68 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeInput;
  69 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeOutput;
  70 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeOutputBuilder;
  71 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceInput;
  72 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceOutput;
  73 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceOutputBuilder;
  74 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceInput;
  75 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceOutput;
  76 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceOutputBuilder;
  77 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeInput;
  78 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeOutput;
  79 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeOutputBuilder;
  80 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
  81 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.RemoveTerminatingServiceActionsInput;
  82 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
  83 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  84 import org.opendaylight.yangtools.yang.common.RpcError;
  85 import org.opendaylight.yangtools.yang.common.RpcResult;
  86 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  87 import org.slf4j.Logger;
  88 import org.slf4j.LoggerFactory;
  89
  90 public class InterfaceManagerRpcService implements OdlInterfaceRpcService {
  91     private static final Logger LOG = LoggerFactory.getLogger(InterfaceManagerRpcService.class);
  92     DataBroker dataBroker;
  93     IMdsalApiManager mdsalMgr;
  94
  95
  96     public InterfaceManagerRpcService(DataBroker dataBroker, IMdsalApiManager mdsalMgr) {
  97         this.dataBroker = dataBroker;
  98         this.mdsalMgr = mdsalMgr;
  99     }
 100
 101     @Override
 102     public Future<RpcResult<GetDpidFromInterfaceOutput>> getDpidFromInterface(GetDpidFromInterfaceInput input) {
 103         String interfaceName = input.getIntfName();
 104         RpcResultBuilder<GetDpidFromInterfaceOutput> rpcResultBuilder;
 105         try {
 106             BigInteger dpId = null;
 107             InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 108             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 109             if (Tunnel.class.equals(interfaceInfo.getType())) {
 110                 ParentRefs parentRefs = interfaceInfo.getAugmentation(ParentRefs.class);
 111                 dpId = parentRefs.getDatapathNodeIdentifier();
 112             } else {
 113                 org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
 114                         InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
 115                 String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 116                 NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 117                 dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 118             }
 119             GetDpidFromInterfaceOutputBuilder output = new GetDpidFromInterfaceOutputBuilder().setDpid(
 120                     (dpId));
 121             rpcResultBuilder = RpcResultBuilder.success();
 122             rpcResultBuilder.withResult(output.build());
 123         } catch (Exception e) {
 124             LOG.error("Retrieval of datapath id for the key {} failed due to {}", interfaceName, e);
 125             rpcResultBuilder = RpcResultBuilder.failed();
 126         }
 127         return Futures.immediateFuture(rpcResultBuilder.build());
 128     }
 129
 130     @Override
 131     public Future<RpcResult<Void>> createTerminatingServiceActions(final CreateTerminatingServiceActionsInput input) {
 132         final SettableFuture<RpcResult<Void>> result = SettableFuture.create();
 133         try{
 134             LOG.info("create terminatingServiceAction on DpnId = {} for tunnel-key {}", input.getDpid() , input.getTunnelKey());
 135             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(new InterfaceKey(input.getInterfaceName()),dataBroker);
 136             IfTunnel tunnelInfo = interfaceInfo.getAugmentation(IfTunnel.class);
 137             if(tunnelInfo != null) {
 138                 ListenableFuture<Void> installFlowResult =(tunnelInfo.getTunnelInterfaceType().isAssignableFrom(TunnelTypeMplsOverGre.class))?
 139                         makeLFIBFlow(input.getDpid(),input.getTunnelKey(), input.getInstruction(), NwConstants.ADD_FLOW) :
 140                         makeTerminatingServiceFlow(tunnelInfo, input.getDpid(), input.getTunnelKey(), input.getInstruction(), NwConstants.ADD_FLOW);
 141                 Futures.addCallback(installFlowResult, new FutureCallback<Void>(){
 142
 143                     @Override
 144                     public void onSuccess(Void aVoid) {
 145                         result.set(RpcResultBuilder.<Void>success().build());
 146                     }
 147
 148                     @Override
 149                     public void onFailure(Throwable error) {
 150                         String msg = String.format("Unable to install terminating service flow for %s", input.getInterfaceName());
 151                         LOG.error("create terminating service actions failed. {}. {}", msg, error);
 152                         result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, error).build());
 153                     }
 154                 });
 155                 result.set(RpcResultBuilder.<Void>success().build());
 156             } else {
 157                 String msg = String.format("Terminating Service Actions cannot be created for a non-tunnel interface %s",input.getInterfaceName());
 158                 LOG.error(msg);
 159                 result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg).build());
 160             }
 161         }catch(Exception e){
 162             String msg = String.format("create Terminating Service Actions for %s failed",input.getInterfaceName());
 163             LOG.error("create Terminating Service Actions for {} failed due to {}" ,input.getDpid(), e);
 164             result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, e.getMessage()).build());
 165         }
 166         return result;
 167     }
 168
 169     @Override
 170     public Future<RpcResult<Void>> removeTerminatingServiceActions(final RemoveTerminatingServiceActionsInput input) {
 171         final SettableFuture<RpcResult<Void>> result = SettableFuture.create();
 172         try{
 173             dataBroker.newWriteOnlyTransaction();
 174             LOG.info("remove terminatingServiceAction on DpnId = {} for tunnel-key {}", input.getDpid() , input.getTunnelKey());
 175
 176             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(new InterfaceKey(input.getInterfaceName()),dataBroker);
 177             IfTunnel tunnelInfo = interfaceInfo.getAugmentation(IfTunnel.class);
 178             if(tunnelInfo != null) {
 179                 ListenableFuture<Void> removeFlowResult = (tunnelInfo.getTunnelInterfaceType().isAssignableFrom(TunnelTypeMplsOverGre.class))?
 180                         makeLFIBFlow(input.getDpid(),input.getTunnelKey(), null, NwConstants.DEL_FLOW) :
 181                         makeTerminatingServiceFlow(tunnelInfo, input.getDpid(), input.getTunnelKey(), null, NwConstants.DEL_FLOW);
 182                 Futures.addCallback(removeFlowResult, new FutureCallback<Void>(){
 183
 184                     @Override
 185                     public void onSuccess(Void aVoid) {
 186                         result.set(RpcResultBuilder.<Void>success().build());
 187                     }
 188
 189                     @Override
 190                     public void onFailure(Throwable error) {
 191                         String msg = String.format("Unable to install terminating service flow %s", input.getInterfaceName());
 192                         LOG.error("create terminating service actions failed. {}. {}", msg, error);
 193                         result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, error).build());
 194                     }
 195                 });
 196                 result.set(RpcResultBuilder.<Void>success().build());
 197             } else {
 198                 String msg = String.format("Terminating Service Actions cannot be removed for a non-tunnel interface %s",
 199                         input.getInterfaceName());
 200                 LOG.error(msg);
 201                 result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg).build());
 202             }
 203         }catch(Exception e){
 204             LOG.error("Remove Terminating Service Actions for {} failed due to {}" ,input.getDpid(), e);
 205             String msg = String.format("Remove Terminating Service Actions for %d failed.", input.getDpid());
 206             result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, e.getMessage()).build());
 207         }
 208         return result;
 209     }
 210
 211     @Override
 212     public Future<RpcResult<GetEndpointIpForDpnOutput>> getEndpointIpForDpn(GetEndpointIpForDpnInput input) {
 213         RpcResultBuilder<GetEndpointIpForDpnOutput> rpcResultBuilder;
 214         try {
 215             BridgeEntryKey bridgeEntryKey = new BridgeEntryKey(input.getDpid());
 216             InstanceIdentifier<BridgeEntry> bridgeEntryInstanceIdentifier =
 217                     InterfaceMetaUtils.getBridgeEntryIdentifier(bridgeEntryKey);
 218             BridgeEntry bridgeEntry =
 219                     InterfaceMetaUtils.getBridgeEntryFromConfigDS(bridgeEntryInstanceIdentifier,
 220                             dataBroker);
 221             // local ip of any of the bridge interface entry will be the dpn end point ip
 222             BridgeInterfaceEntry bridgeInterfaceEntry = bridgeEntry.getBridgeInterfaceEntry().get(0);
 223             InterfaceKey interfaceKey = new InterfaceKey(bridgeInterfaceEntry.getInterfaceName());
 224             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 225             IfTunnel tunnel = interfaceInfo.getAugmentation(IfTunnel.class);
 226             GetEndpointIpForDpnOutputBuilder endpointIpForDpnOutput = new GetEndpointIpForDpnOutputBuilder().setLocalIps(Arrays.asList(tunnel.getTunnelSource()));
 227             rpcResultBuilder = RpcResultBuilder.success();
 228             rpcResultBuilder.withResult(endpointIpForDpnOutput.build());
 229         }catch(Exception e){
 230             LOG.error("Retrieval of endpoint of for dpn {} failed due to {}" ,input.getDpid(), e);
 231             rpcResultBuilder = RpcResultBuilder.failed();
 232         }
 233         return Futures.immediateFuture(rpcResultBuilder.build());
 234     }
 235
 236     @Override
 237     public Future<RpcResult<GetEgressInstructionsForInterfaceOutput>> getEgressInstructionsForInterface(GetEgressInstructionsForInterfaceInput input) {
 238         RpcResultBuilder<GetEgressInstructionsForInterfaceOutput> rpcResultBuilder;
 239         try {
 240             List<Instruction> instructions = IfmUtil.getEgressInstructionsForInterface(input.getIntfName(), input.getTunnelKey(), dataBroker, false);
 241             GetEgressInstructionsForInterfaceOutputBuilder output = new GetEgressInstructionsForInterfaceOutputBuilder().
 242                     setInstruction(instructions);
 243             rpcResultBuilder = RpcResultBuilder.success();
 244             rpcResultBuilder.withResult(output.build());
 245         }catch(Exception e){
 246             LOG.error("Retrieval of egress actions for the key {} failed due to {}" ,input.getIntfName(), e.getMessage());
 247             rpcResultBuilder = RpcResultBuilder.failed();
 248         }
 249         return Futures.immediateFuture(rpcResultBuilder.build());
 250     }
 251
 252     @Override
 253     public Future<RpcResult<GetInterfaceTypeOutput>> getInterfaceType(GetInterfaceTypeInput input) {
 254         String interfaceName = input.getIntfName();
 255         RpcResultBuilder<GetInterfaceTypeOutput> rpcResultBuilder;
 256         try {
 257             InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 258             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 259
 260             GetInterfaceTypeOutputBuilder output = new GetInterfaceTypeOutputBuilder().setInterfaceType(interfaceInfo.getType());
 261             rpcResultBuilder = RpcResultBuilder.success();
 262             rpcResultBuilder.withResult(output.build());
 263         } catch (Exception e) {
 264             LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
 265             rpcResultBuilder = RpcResultBuilder.failed();
 266         }
 267         return Futures.immediateFuture(rpcResultBuilder.build());
 268     }
 269
 270     @Override
 271     public Future<RpcResult<GetTunnelTypeOutput>> getTunnelType(GetTunnelTypeInput input) {
 272         String interfaceName = input.getIntfName();
 273         RpcResultBuilder<GetTunnelTypeOutput> rpcResultBuilder;
 274         try {
 275             InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 276             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 277
 278             if (Tunnel.class.equals(interfaceInfo.getType())) {
 279                 IfTunnel tnl = interfaceInfo.getAugmentation(IfTunnel.class);
 280                 Class <? extends TunnelTypeBase> tun_type = tnl.getTunnelInterfaceType();
 281                 GetTunnelTypeOutputBuilder output = new GetTunnelTypeOutputBuilder().setTunnelType(tun_type);
 282                 rpcResultBuilder = RpcResultBuilder.success();
 283                 rpcResultBuilder.withResult(output.build());
 284             } else {
 285                 LOG.error("Retrieval of interface type for the key {} failed", interfaceName);
 286                 rpcResultBuilder = RpcResultBuilder.failed();
 287             }
 288         } catch (Exception e) {
 289             LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
 290             rpcResultBuilder = RpcResultBuilder.failed();
 291         }
 292         return Futures.immediateFuture(rpcResultBuilder.build());
 293     }
 294
 295     @Override
 296     public Future<RpcResult<GetEgressActionsForInterfaceOutput>> getEgressActionsForInterface(GetEgressActionsForInterfaceInput input) {
 297         RpcResultBuilder<GetEgressActionsForInterfaceOutput> rpcResultBuilder;
 298         try {
 299             LOG.debug("Get Egress Action for interface {} with key {}", input.getIntfName(), input.getTunnelKey());
 300             List<Action> actionsList = IfmUtil.getEgressActionsForInterface(input.getIntfName(),
 301                     input.getTunnelKey(),
 302                     dataBroker, false);
 303             GetEgressActionsForInterfaceOutputBuilder output = new GetEgressActionsForInterfaceOutputBuilder().
 304                     setAction(actionsList);
 305             rpcResultBuilder = RpcResultBuilder.success();
 306             rpcResultBuilder.withResult(output.build());
 307         }catch(Exception e){
 308             LOG.error("Retrieval of egress actions for the key {} failed due to {}" ,input.getIntfName(), e.getMessage());
 309             rpcResultBuilder = RpcResultBuilder.failed();
 310         }
 311         return Futures.immediateFuture(rpcResultBuilder.build());
 312     }
 313
 314
 315     @Override
 316     public Future<RpcResult<GetPortFromInterfaceOutput>> getPortFromInterface(GetPortFromInterfaceInput input) {
 317         RpcResultBuilder<GetPortFromInterfaceOutput> rpcResultBuilder;
 318         String interfaceName = input.getIntfName();
 319         try {
 320             BigInteger dpId = null;
 321             long portNo = 0;
 322             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
 323                     InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
 324             String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 325             NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 326             dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 327             portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
 328             // FIXME Assuming portName and interfaceName are same
 329             GetPortFromInterfaceOutputBuilder output = new GetPortFromInterfaceOutputBuilder().setDpid(dpId).
 330                     setPortname(interfaceName).setPortno(Long.valueOf(portNo));
 331             rpcResultBuilder = RpcResultBuilder.success();
 332             rpcResultBuilder.withResult(output.build());
 333         }catch(Exception e){
 334             LOG.error("Retrieval of lport tag for the key {} failed due to {}" ,input.getIntfName(), e);
 335             rpcResultBuilder = RpcResultBuilder.failed();
 336         }
 337         return Futures.immediateFuture(rpcResultBuilder.build());
 338     }
 339
 340     @Override
 341     public Future<RpcResult<GetNodeconnectorIdFromInterfaceOutput>> getNodeconnectorIdFromInterface(GetNodeconnectorIdFromInterfaceInput input) {
 342         String interfaceName = input.getIntfName();
 343         RpcResultBuilder<GetNodeconnectorIdFromInterfaceOutput> rpcResultBuilder;
 344         try {
 345             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
 346                     InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
 347             String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 348             NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 349
 350             GetNodeconnectorIdFromInterfaceOutputBuilder output = new GetNodeconnectorIdFromInterfaceOutputBuilder().setNodeconnectorId(nodeConnectorId);
 351             rpcResultBuilder = RpcResultBuilder.success();
 352             rpcResultBuilder.withResult(output.build());
 353         } catch (Exception e) {
 354             LOG.error("Retrieval of nodeconnector id for the key {} failed due to {}", interfaceName, e);
 355             rpcResultBuilder = RpcResultBuilder.failed();
 356         }
 357         return Futures.immediateFuture(rpcResultBuilder.build());
 358     }
 359
 360     @Override
 361     public Future<RpcResult<GetInterfaceFromIfIndexOutput>> getInterfaceFromIfIndex(GetInterfaceFromIfIndexInput input) {
 362         Integer ifIndex = input.getIfIndex();
 363         RpcResultBuilder<GetInterfaceFromIfIndexOutput> rpcResultBuilder = null;
 364         try {
 365             InstanceIdentifier<IfIndexInterface> id = InstanceIdentifier.builder(IfIndexesInterfaceMap.class).child(IfIndexInterface.class, new IfIndexInterfaceKey(ifIndex)).build();
 366             Optional<IfIndexInterface> ifIndexesInterface = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, id, dataBroker);
 367             if(ifIndexesInterface.isPresent()) {
 368                 String interfaceName = ifIndexesInterface.get().getInterfaceName();
 369                 GetInterfaceFromIfIndexOutputBuilder output = new GetInterfaceFromIfIndexOutputBuilder().setInterfaceName(interfaceName);
 370                 rpcResultBuilder = RpcResultBuilder.success();
 371                 rpcResultBuilder.withResult(output.build());
 372             }
 373         } catch (Exception e) {
 374             LOG.error("Retrieval of interfaceName for the key {} failed due to {}", ifIndex, e);
 375             rpcResultBuilder = RpcResultBuilder.failed();
 376         }
 377         return Futures.immediateFuture(rpcResultBuilder.build());
 378     }
 379
 380     protected static List<Instruction> buildInstructions(List<InstructionInfo> listInstructionInfo) {
 381         if (listInstructionInfo != null) {
 382             List<Instruction> instructions = new ArrayList<>();
 383             int instructionKey = 0;
 384
 385             for (InstructionInfo instructionInfo : listInstructionInfo) {
 386                 instructions.add(instructionInfo.buildInstruction(instructionKey));
 387                 instructionKey++;
 388             }
 389             return instructions;
 390         }
 391
 392         return null;
 393     }
 394
 395     private ListenableFuture<Void> makeTerminatingServiceFlow(IfTunnel tunnelInfo, BigInteger dpnId, BigInteger tunnelKey, List<Instruction> instruction, int addOrRemove) {
 396         List<MatchInfo> mkMatches = new ArrayList<>();
 397         mkMatches.add(new MatchInfo(MatchFieldType.tunnel_id, new BigInteger[] {tunnelKey}));
 398         short tableId = tunnelInfo.isInternal() ? NwConstants.INTERNAL_TUNNEL_TABLE :
 399                 NwConstants.EXTERNAL_TUNNEL_TABLE;
 400         final String flowRef = getFlowRef(dpnId,tableId, tunnelKey);
 401         Flow terminatingSerFlow = MDSALUtil.buildFlowNew(tableId, flowRef,
 402                 5, "TST Flow Entry", 0, 0,
 403                 IfmConstants.TUNNEL_TABLE_COOKIE.add(tunnelKey), mkMatches, instruction);
 404         if (addOrRemove == NwConstants.ADD_FLOW) {
 405             return mdsalMgr.installFlow(dpnId, terminatingSerFlow);
 406         }
 407
 408         return mdsalMgr.removeFlow(dpnId, terminatingSerFlow);
 409     }
 410
 411     private ListenableFuture<Void> makeLFIBFlow(BigInteger dpnId, BigInteger tunnelKey, List<Instruction> instruction, int addOrRemove) {
 412         List<MatchInfo> mkMatches = new ArrayList<>();
 413         mkMatches.add(new MatchInfo(MatchFieldType.eth_type,
 414                 new long[]{0x8847L}));
 415         mkMatches.add(new MatchInfo(MatchFieldType.mpls_label, new String[]{Long.toString(tunnelKey.longValue())}));
 416         // Install the flow entry in L3_LFIB_TABLE
 417         String flowRef = getFlowRef(dpnId, NwConstants.L3_LFIB_TABLE, tunnelKey);
 418
 419         Flow lfibFlow = MDSALUtil.buildFlowNew(NwConstants.L3_LFIB_TABLE, flowRef,
 420                 IfmConstants.DEFAULT_FLOW_PRIORITY, "LFIB Entry", 0, 0,
 421                 IfmConstants.COOKIE_VM_LFIB_TABLE, mkMatches, instruction);
 422         if (addOrRemove == NwConstants.ADD_FLOW) {
 423             return mdsalMgr.installFlow(dpnId, lfibFlow);
 424         }
 425         return mdsalMgr.removeFlow(dpnId, lfibFlow);
 426     }
 427
 428     private String getFlowRef(BigInteger dpnId, short tableId, BigInteger tunnelKey) {
 429         return new StringBuffer().append(IfmConstants.TUNNEL_TABLE_FLOWID_PREFIX).append(dpnId).append(NwConstants.FLOWID_SEPARATOR)
 430                 .append(tableId).append(NwConstants.FLOWID_SEPARATOR).append(tunnelKey).toString();
 431     }
 432 }