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<InstructionInfo> instructionInfo = new ArrayList<>();
 241             List<ActionInfo> actionInfo = IfmUtil.getEgressActionInfosForInterface(input.getIntfName(),
 242                     input.getTunnelKey(),
 243                     0,  /* ActionKey starting value */
 244                     dataBroker);
 245             instructionInfo.add(new InstructionInfo(InstructionType.write_actions, actionInfo));
 246             GetEgressInstructionsForInterfaceOutputBuilder output = new GetEgressInstructionsForInterfaceOutputBuilder().
 247                     setInstruction(buildInstructions(instructionInfo));
 248             rpcResultBuilder = RpcResultBuilder.success();
 249             rpcResultBuilder.withResult(output.build());
 250         }catch(Exception e){
 251             LOG.error("Retrieval of egress actions for the key {} failed due to {}" ,input.getIntfName(), e.getMessage());
 252             rpcResultBuilder = RpcResultBuilder.failed();
 253         }
 254         return Futures.immediateFuture(rpcResultBuilder.build());
 255     }
 256
 257     @Override
 258     public Future<RpcResult<GetInterfaceTypeOutput>> getInterfaceType(GetInterfaceTypeInput input) {
 259         String interfaceName = input.getIntfName();
 260         RpcResultBuilder<GetInterfaceTypeOutput> rpcResultBuilder;
 261         try {
 262             InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 263             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 264
 265             GetInterfaceTypeOutputBuilder output = new GetInterfaceTypeOutputBuilder().setInterfaceType(interfaceInfo.getType());
 266             rpcResultBuilder = RpcResultBuilder.success();
 267             rpcResultBuilder.withResult(output.build());
 268         } catch (Exception e) {
 269             LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
 270             rpcResultBuilder = RpcResultBuilder.failed();
 271         }
 272         return Futures.immediateFuture(rpcResultBuilder.build());
 273     }
 274
 275     @Override
 276     public Future<RpcResult<GetTunnelTypeOutput>> getTunnelType(GetTunnelTypeInput input) {
 277         String interfaceName = input.getIntfName();
 278         RpcResultBuilder<GetTunnelTypeOutput> rpcResultBuilder;
 279         try {
 280             InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
 281             Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
 282
 283             if (Tunnel.class.equals(interfaceInfo.getType())) {
 284                 IfTunnel tnl = interfaceInfo.getAugmentation(IfTunnel.class);
 285                 Class <? extends TunnelTypeBase> tun_type = tnl.getTunnelInterfaceType();
 286                 GetTunnelTypeOutputBuilder output = new GetTunnelTypeOutputBuilder().setTunnelType(tun_type);
 287                 rpcResultBuilder = RpcResultBuilder.success();
 288                 rpcResultBuilder.withResult(output.build());
 289             } else {
 290                 LOG.error("Retrieval of interface type for the key {} failed", interfaceName);
 291                 rpcResultBuilder = RpcResultBuilder.failed();
 292             }
 293         } catch (Exception e) {
 294             LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
 295             rpcResultBuilder = RpcResultBuilder.failed();
 296         }
 297         return Futures.immediateFuture(rpcResultBuilder.build());
 298     }
 299
 300     @Override
 301     public Future<RpcResult<GetEgressActionsForInterfaceOutput>> getEgressActionsForInterface(GetEgressActionsForInterfaceInput input) {
 302         RpcResultBuilder<GetEgressActionsForInterfaceOutput> rpcResultBuilder;
 303         try {
 304             LOG.debug("Get Egress Action for interface {} with key {}", input.getIntfName(), input.getTunnelKey());
 305             List<Action> actionsList = IfmUtil.getEgressActionsForInterface(input.getIntfName(),
 306                     input.getTunnelKey(),
 307                     dataBroker);
 308             GetEgressActionsForInterfaceOutputBuilder output = new GetEgressActionsForInterfaceOutputBuilder().
 309                     setAction(actionsList);
 310             rpcResultBuilder = RpcResultBuilder.success();
 311             rpcResultBuilder.withResult(output.build());
 312         }catch(Exception e){
 313             LOG.error("Retrieval of egress actions for the key {} failed due to {}" ,input.getIntfName(), e.getMessage());
 314             rpcResultBuilder = RpcResultBuilder.failed();
 315         }
 316         return Futures.immediateFuture(rpcResultBuilder.build());
 317     }
 318
 319
 320     @Override
 321     public Future<RpcResult<GetPortFromInterfaceOutput>> getPortFromInterface(GetPortFromInterfaceInput input) {
 322         RpcResultBuilder<GetPortFromInterfaceOutput> rpcResultBuilder;
 323         String interfaceName = input.getIntfName();
 324         try {
 325             BigInteger dpId = null;
 326             long portNo = 0;
 327             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
 328                     InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
 329             String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 330             NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 331             dpId = new BigInteger(IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId));
 332             portNo = Long.valueOf(IfmUtil.getPortNoFromNodeConnectorId(nodeConnectorId));
 333             // FIXME Assuming portName and interfaceName are same
 334             GetPortFromInterfaceOutputBuilder output = new GetPortFromInterfaceOutputBuilder().setDpid(dpId).
 335                     setPortname(interfaceName).setPortno(Long.valueOf(portNo));
 336             rpcResultBuilder = RpcResultBuilder.success();
 337             rpcResultBuilder.withResult(output.build());
 338         }catch(Exception e){
 339             LOG.error("Retrieval of lport tag for the key {} failed due to {}" ,input.getIntfName(), e);
 340             rpcResultBuilder = RpcResultBuilder.failed();
 341         }
 342         return Futures.immediateFuture(rpcResultBuilder.build());
 343     }
 344
 345     @Override
 346     public Future<RpcResult<GetNodeconnectorIdFromInterfaceOutput>> getNodeconnectorIdFromInterface(GetNodeconnectorIdFromInterfaceInput input) {
 347         String interfaceName = input.getIntfName();
 348         RpcResultBuilder<GetNodeconnectorIdFromInterfaceOutput> rpcResultBuilder;
 349         try {
 350             org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState =
 351                     InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
 352             String lowerLayerIf = ifState.getLowerLayerIf().get(0);
 353             NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
 354
 355             GetNodeconnectorIdFromInterfaceOutputBuilder output = new GetNodeconnectorIdFromInterfaceOutputBuilder().setNodeconnectorId(nodeConnectorId);
 356             rpcResultBuilder = RpcResultBuilder.success();
 357             rpcResultBuilder.withResult(output.build());
 358         } catch (Exception e) {
 359             LOG.error("Retrieval of nodeconnector id for the key {} failed due to {}", interfaceName, e);
 360             rpcResultBuilder = RpcResultBuilder.failed();
 361         }
 362         return Futures.immediateFuture(rpcResultBuilder.build());
 363     }
 364
 365     @Override
 366     public Future<RpcResult<GetInterfaceFromIfIndexOutput>> getInterfaceFromIfIndex(GetInterfaceFromIfIndexInput input) {
 367         Integer ifIndex = input.getIfIndex();
 368         RpcResultBuilder<GetInterfaceFromIfIndexOutput> rpcResultBuilder = null;
 369         try {
 370             InstanceIdentifier<IfIndexInterface> id = InstanceIdentifier.builder(IfIndexesInterfaceMap.class).child(IfIndexInterface.class, new IfIndexInterfaceKey(ifIndex)).build();
 371             Optional<IfIndexInterface> ifIndexesInterface = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, id, dataBroker);
 372             if(ifIndexesInterface.isPresent()) {
 373                 String interfaceName = ifIndexesInterface.get().getInterfaceName();
 374                 GetInterfaceFromIfIndexOutputBuilder output = new GetInterfaceFromIfIndexOutputBuilder().setInterfaceName(interfaceName);
 375                 rpcResultBuilder = RpcResultBuilder.success();
 376                 rpcResultBuilder.withResult(output.build());
 377             }
 378         } catch (Exception e) {
 379             LOG.error("Retrieval of interfaceName for the key {} failed due to {}", ifIndex, e);
 380             rpcResultBuilder = RpcResultBuilder.failed();
 381         }
 382         return Futures.immediateFuture(rpcResultBuilder.build());
 383     }
 384
 385     protected static List<Instruction> buildInstructions(List<InstructionInfo> listInstructionInfo) {
 386         if (listInstructionInfo != null) {
 387             List<Instruction> instructions = new ArrayList<>();
 388             int instructionKey = 0;
 389
 390             for (InstructionInfo instructionInfo : listInstructionInfo) {
 391                 instructions.add(instructionInfo.buildInstruction(instructionKey));
 392                 instructionKey++;
 393             }
 394             return instructions;
 395         }
 396
 397         return null;
 398     }
 399
 400     private ListenableFuture<Void> makeTerminatingServiceFlow(IfTunnel tunnelInfo, BigInteger dpnId, BigInteger tunnelKey, List<Instruction> instruction, int addOrRemove) {
 401         List<MatchInfo> mkMatches = new ArrayList<>();
 402         mkMatches.add(new MatchInfo(MatchFieldType.tunnel_id, new BigInteger[] {tunnelKey}));
 403         short tableId = tunnelInfo.isInternal() ? NwConstants.INTERNAL_TUNNEL_TABLE :
 404                 NwConstants.EXTERNAL_TUNNEL_TABLE;
 405         final String flowRef = getFlowRef(dpnId,tableId, tunnelKey);
 406         Flow terminatingSerFlow = MDSALUtil.buildFlowNew(tableId, flowRef,
 407                 5, "TST Flow Entry", 0, 0,
 408                 IfmConstants.TUNNEL_TABLE_COOKIE.add(tunnelKey), mkMatches, instruction);
 409         if (addOrRemove == NwConstants.ADD_FLOW) {
 410             return mdsalMgr.installFlow(dpnId, terminatingSerFlow);
 411         }
 412
 413         return mdsalMgr.removeFlow(dpnId, terminatingSerFlow);
 414     }
 415
 416     private ListenableFuture<Void> makeLFIBFlow(BigInteger dpnId, BigInteger tunnelKey, List<Instruction> instruction, int addOrRemove) {
 417         List<MatchInfo> mkMatches = new ArrayList<>();
 418         mkMatches.add(new MatchInfo(MatchFieldType.eth_type,
 419                 new long[]{0x8847L}));
 420         mkMatches.add(new MatchInfo(MatchFieldType.mpls_label, new String[]{Long.toString(tunnelKey.longValue())}));
 421         // Install the flow entry in L3_LFIB_TABLE
 422         String flowRef = getFlowRef(dpnId, NwConstants.L3_LFIB_TABLE, tunnelKey);
 423
 424         Flow lfibFlow = MDSALUtil.buildFlowNew(NwConstants.L3_LFIB_TABLE, flowRef,
 425                 IfmConstants.DEFAULT_FLOW_PRIORITY, "LFIB Entry", 0, 0,
 426                 IfmConstants.COOKIE_VM_LFIB_TABLE, mkMatches, instruction);
 427         if (addOrRemove == NwConstants.ADD_FLOW) {
 428             return mdsalMgr.installFlow(dpnId, lfibFlow);
 429         }
 430         return mdsalMgr.removeFlow(dpnId, lfibFlow);
 431     }
 432
 433     private String getFlowRef(BigInteger dpnId, short tableId, BigInteger tunnelKey) {
 434         return new StringBuffer().append(IfmConstants.TUNNEL_TABLE_FLOWID_PREFIX).append(dpnId).append(NwConstants.FLOWID_SEPARATOR)
 435                 .append(tableId).append(NwConstants.FLOWID_SEPARATOR).append(tunnelKey).toString();
 436     }
 437 }