TSC-99 Adjust to RPC method signature update
[genius.git] / interfacemanager / interfacemanager-impl / src / main / java / org / opendaylight / genius / interfacemanager / rpcservice / InterfaceManagerRpcService.java
index e0eea9400bac58f14d4f12ece217954131fe7a3e..35c0d7112600aa1be41900598f63148ff5679f93 100644 (file)
@@ -1,98 +1,43 @@
 /*
- * Copyright (c) 2016 Ericsson India Global Services Pvt Ltd. and others.  All rights reserved.
+ * Copyright (c) 2017 Red Hat, Inc. and others. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.genius.interfacemanager.rpcservice;
 
-import com.google.common.base.Optional;
-import com.google.common.util.concurrent.FutureCallback;
-import com.google.common.util.concurrent.Futures;
+import static org.opendaylight.genius.tools.mdsal.rpc.FutureRpcResults.LogLevel.DEBUG;
+import static org.opendaylight.genius.tools.mdsal.rpc.FutureRpcResults.LogLevel.NONE;
+import static org.opendaylight.genius.tools.mdsal.rpc.FutureRpcResults.fromListenableFuture;
+
 import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.SettableFuture;
-import java.math.BigInteger;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.concurrent.Future;
-import java.util.stream.Collectors;
 import javax.inject.Inject;
 import javax.inject.Singleton;
-import org.opendaylight.controller.md.sal.binding.api.DataBroker;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.genius.interfacemanager.IfmConstants;
-import org.opendaylight.genius.interfacemanager.IfmUtil;
-import org.opendaylight.genius.interfacemanager.commons.InterfaceManagerCommonUtils;
-import org.opendaylight.genius.interfacemanager.commons.InterfaceMetaUtils;
-import org.opendaylight.genius.mdsalutil.InstructionInfo;
-import org.opendaylight.genius.mdsalutil.MDSALUtil;
-import org.opendaylight.genius.mdsalutil.MatchInfo;
-import org.opendaylight.genius.mdsalutil.NwConstants;
-import org.opendaylight.genius.mdsalutil.interfaces.IMdsalApiManager;
-import org.opendaylight.genius.mdsalutil.matches.MatchEthernetType;
-import org.opendaylight.genius.mdsalutil.matches.MatchMplsLabel;
-import org.opendaylight.genius.mdsalutil.matches.MatchTunnelId;
-import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.iana._if.type.rev140508.Tunnel;
-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.action.types.rev131112.action.list.Action;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.table.Flow;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.types.rev131026.instruction.list.Instruction;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.DpnToInterfaceList;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.IfIndexesInterfaceMap;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterface;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406._if.indexes._interface.map.IfIndexInterfaceKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.BridgeEntryKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.bridge._interface.info.bridge.entry.BridgeInterfaceEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.dpn.to._interface.list.DpnToInterface;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.dpn.to._interface.list.DpnToInterfaceKey;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.meta.rev160406.dpn.to._interface.list.dpn.to._interface.InterfaceNameEntry;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.IfTunnel;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.ParentRefs;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeBase;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rev160406.TunnelTypeMplsOverGre;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.CreateTerminatingServiceActionsInput;
+
+import org.opendaylight.genius.interfacemanager.interfaces.InterfaceManagerService;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpidFromInterfaceOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpnInterfaceListInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpnInterfaceListOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetDpnInterfaceListOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressActionsForInterfaceOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEgressInstructionsForInterfaceOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetEndpointIpForDpnOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceFromIfIndexOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetInterfaceTypeOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetNodeconnectorIdFromInterfaceOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetPortFromInterfaceOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeInput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeOutput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.GetTunnelTypeOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.OdlInterfaceRpcService;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.genius.interfacemanager.rpcs.rev160406.RemoveTerminatingServiceActionsInput;
-import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorId;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.common.RpcError;
 import org.opendaylight.yangtools.yang.common.RpcResult;
-import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -101,444 +46,83 @@ public class InterfaceManagerRpcService implements OdlInterfaceRpcService {
 
     private static final Logger LOG = LoggerFactory.getLogger(InterfaceManagerRpcService.class);
 
-    private final DataBroker dataBroker;
-    private final IMdsalApiManager mdsalMgr;
+    private final InterfaceManagerService interfaceManagerService;
 
     @Inject
-    public InterfaceManagerRpcService(final DataBroker dataBroker, final IMdsalApiManager iMdsalApiManager) {
-        this.dataBroker = dataBroker;
-        this.mdsalMgr = iMdsalApiManager;
+    public InterfaceManagerRpcService(InterfaceManagerService interfaceManagerService) {
+        this.interfaceManagerService = interfaceManagerService;
     }
 
     @Override
-    public Future<RpcResult<GetDpidFromInterfaceOutput>> getDpidFromInterface(GetDpidFromInterfaceInput input) {
-        String interfaceName = input.getIntfName();
-        RpcResultBuilder<GetDpidFromInterfaceOutput> rpcResultBuilder;
-        try {
-            BigInteger dpId = null;
-            InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
-            Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
-            if (interfaceInfo == null) {
-                rpcResultBuilder = getRpcErrorResultForGetDpnIdRpc(interfaceName,
-                        "missing Interface in Config DataStore");
-                return Futures.immediateFuture(rpcResultBuilder.build());
-            }
-            if (Tunnel.class.equals(interfaceInfo.getType())) {
-                ParentRefs parentRefs = interfaceInfo.getAugmentation(ParentRefs.class);
-                dpId = parentRefs.getDatapathNodeIdentifier();
-            } else {
-                org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state
-                    .Interface ifState
-                        = InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
-                if (ifState != null) {
-                    String lowerLayerIf = ifState.getLowerLayerIf().get(0);
-                    NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
-                    dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
-                } else {
-                    rpcResultBuilder = getRpcErrorResultForGetDpnIdRpc(interfaceName, "missing Interface-state");
-                    return Futures.immediateFuture(rpcResultBuilder.build());
-                }
-            }
-            GetDpidFromInterfaceOutputBuilder output = new GetDpidFromInterfaceOutputBuilder().setDpid(dpId);
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(output.build());
-        } catch (Exception e) {
-            rpcResultBuilder = getRpcErrorResultForGetDpnIdRpc(interfaceName, e.getMessage());
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
-    }
-
-    private RpcResultBuilder<GetDpidFromInterfaceOutput> getRpcErrorResultForGetDpnIdRpc(String interfaceName,
-            String errMsg) {
-        errMsg = String.format("Retrieval of datapath id for the key {%s} failed due to %s", interfaceName, errMsg);
-        LOG.error(errMsg);
-        RpcResultBuilder<GetDpidFromInterfaceOutput> rpcResultBuilder = RpcResultBuilder
-                .<GetDpidFromInterfaceOutput>failed().withError(RpcError.ErrorType.APPLICATION, errMsg);
-        return rpcResultBuilder;
+    public ListenableFuture<RpcResult<GetEndpointIpForDpnOutput>> getEndpointIpForDpn(GetEndpointIpForDpnInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getEndpointIpForDpn(input)).build();
     }
 
     @Override
-    public Future<RpcResult<Void>> createTerminatingServiceActions(final CreateTerminatingServiceActionsInput input) {
-        final SettableFuture<RpcResult<Void>> result = SettableFuture.create();
-        try {
-            LOG.info("create terminatingServiceAction on DpnId = {} for tunnel-key {}", input.getDpid(),
-                    input.getTunnelKey());
-            Interface interfaceInfo = InterfaceManagerCommonUtils
-                    .getInterfaceFromConfigDS(new InterfaceKey(input.getInterfaceName()), dataBroker);
-            IfTunnel tunnelInfo = interfaceInfo.getAugmentation(IfTunnel.class);
-            if (tunnelInfo != null) {
-                ListenableFuture<Void> installFlowResult = tunnelInfo.getTunnelInterfaceType()
-                        .isAssignableFrom(TunnelTypeMplsOverGre.class)
-                                ? makeLFIBFlow(input.getDpid(), input.getTunnelKey(), input.getInstruction(),
-                                        NwConstants.ADD_FLOW)
-                                : makeTerminatingServiceFlow(tunnelInfo, input.getDpid(), input.getTunnelKey(),
-                                        input.getInstruction(), NwConstants.ADD_FLOW);
-                Futures.addCallback(installFlowResult, new FutureCallback<Void>() {
-
-                    @Override
-                    public void onSuccess(Void theVoid) {
-                        result.set(RpcResultBuilder.<Void>success().build());
-                    }
-
-                    @Override
-                    public void onFailure(Throwable error) {
-                        String msg = String.format("Unable to install terminating service flow for %s",
-                                input.getInterfaceName());
-                        LOG.error("create terminating service actions failed. {}. {}", msg, error);
-                        result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, error)
-                                .build());
-                    }
-                });
-                result.set(RpcResultBuilder.<Void>success().build());
-            } else {
-                String msg = String.format(
-                        "Terminating Service Actions cannot be created for a non-tunnel interface %s",
-                        input.getInterfaceName());
-                LOG.error(msg);
-                result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg).build());
-            }
-        } catch (Exception e) {
-            String msg = String.format("create Terminating Service Actions for %s failed", input.getInterfaceName());
-            LOG.error("create Terminating Service Actions for {} failed due to {}", input.getDpid(), e);
-            result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, e.getMessage())
-                    .build());
-        }
-        return result;
+    public ListenableFuture<RpcResult<GetInterfaceTypeOutput>> getInterfaceType(GetInterfaceTypeInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getInterfaceType(input)).build();
     }
 
     @Override
-    public Future<RpcResult<Void>> removeTerminatingServiceActions(final RemoveTerminatingServiceActionsInput input) {
-        final SettableFuture<RpcResult<Void>> result = SettableFuture.create();
-        try {
-            dataBroker.newWriteOnlyTransaction();
-            LOG.info("remove terminatingServiceAction on DpnId = {} for tunnel-key {}", input.getDpid(),
-                    input.getTunnelKey());
-
-            Interface interfaceInfo = InterfaceManagerCommonUtils
-                    .getInterfaceFromConfigDS(new InterfaceKey(input.getInterfaceName()), dataBroker);
-            IfTunnel tunnelInfo = interfaceInfo.getAugmentation(IfTunnel.class);
-            if (tunnelInfo != null) {
-                ListenableFuture<Void> removeFlowResult = tunnelInfo.getTunnelInterfaceType()
-                        .isAssignableFrom(TunnelTypeMplsOverGre.class)
-                                ? makeLFIBFlow(input.getDpid(), input.getTunnelKey(), null, NwConstants.DEL_FLOW)
-                                : makeTerminatingServiceFlow(tunnelInfo, input.getDpid(), input.getTunnelKey(), null,
-                                        NwConstants.DEL_FLOW);
-                Futures.addCallback(removeFlowResult, new FutureCallback<Void>() {
-
-                    @Override
-                    public void onSuccess(Void theVoid) {
-                        result.set(RpcResultBuilder.<Void>success().build());
-                    }
-
-                    @Override
-                    public void onFailure(Throwable error) {
-                        String msg = String.format("Unable to install terminating service flow %s",
-                                input.getInterfaceName());
-                        LOG.error("create terminating service actions failed. {}. {}", msg, error);
-                        result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, error)
-                                .build());
-                    }
-                });
-                result.set(RpcResultBuilder.<Void>success().build());
-            } else {
-                String msg = String.format(
-                        "Terminating Service Actions cannot be removed for a non-tunnel interface %s",
-                        input.getInterfaceName());
-                LOG.error(msg);
-                result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg).build());
-            }
-        } catch (Exception e) {
-            LOG.error("Remove Terminating Service Actions for {} failed due to {}", input.getDpid(), e);
-            String msg = String.format("Remove Terminating Service Actions for %d failed.", input.getDpid());
-            result.set(RpcResultBuilder.<Void>failed().withError(RpcError.ErrorType.APPLICATION, msg, e.getMessage())
-                    .build());
-        }
-        return result;
+    public ListenableFuture<RpcResult<GetTunnelTypeOutput>> getTunnelType(GetTunnelTypeInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getTunnelType(input)).build();
     }
 
     @Override
-    public Future<RpcResult<GetEndpointIpForDpnOutput>> getEndpointIpForDpn(GetEndpointIpForDpnInput input) {
-        RpcResultBuilder<GetEndpointIpForDpnOutput> rpcResultBuilder;
-        try {
-            BridgeEntryKey bridgeEntryKey = new BridgeEntryKey(input.getDpid());
-            InstanceIdentifier<BridgeEntry> bridgeEntryInstanceIdentifier = InterfaceMetaUtils
-                    .getBridgeEntryIdentifier(bridgeEntryKey);
-            BridgeEntry bridgeEntry = InterfaceMetaUtils.getBridgeEntryFromConfigDS(bridgeEntryInstanceIdentifier,
-                    dataBroker);
-            // local ip of any of the bridge interface entry will be the dpn end
-            // point ip
-            BridgeInterfaceEntry bridgeInterfaceEntry = bridgeEntry.getBridgeInterfaceEntry().get(0);
-            InterfaceKey interfaceKey = new InterfaceKey(bridgeInterfaceEntry.getInterfaceName());
-            Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
-            IfTunnel tunnel = interfaceInfo.getAugmentation(IfTunnel.class);
-            GetEndpointIpForDpnOutputBuilder endpointIpForDpnOutput = new GetEndpointIpForDpnOutputBuilder()
-                    .setLocalIps(Collections.singletonList(tunnel.getTunnelSource()));
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(endpointIpForDpnOutput.build());
-        } catch (Exception e) {
-            LOG.error("Retrieval of endpoint of for dpn {} failed due to {}", input.getDpid(), e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
+    public ListenableFuture<RpcResult<GetPortFromInterfaceOutput>> getPortFromInterface(
+            GetPortFromInterfaceInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getPortFromInterface(input)).build();
     }
 
     @Override
-    public Future<RpcResult<GetEgressInstructionsForInterfaceOutput>> getEgressInstructionsForInterface(
-            GetEgressInstructionsForInterfaceInput input) {
-        RpcResultBuilder<GetEgressInstructionsForInterfaceOutput> rpcResultBuilder;
-        try {
-            List<Instruction> instructions = IfmUtil.getEgressInstructionsForInterface(input.getIntfName(),
-                    input.getTunnelKey(), dataBroker, false);
-            GetEgressInstructionsForInterfaceOutputBuilder output = new GetEgressInstructionsForInterfaceOutputBuilder()
-                    .setInstruction(instructions);
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(output.build());
-        } catch (Exception e) {
-            LOG.error("Retrieval of egress instructions for the key {} failed due to {}", input.getIntfName(),
-                    e.getMessage());
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
+    public ListenableFuture<RpcResult<GetNodeconnectorIdFromInterfaceOutput>> getNodeconnectorIdFromInterface(
+            GetNodeconnectorIdFromInterfaceInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getNodeconnectorIdFromInterface(input))
+                .build();
     }
 
     @Override
-    public Future<RpcResult<GetInterfaceTypeOutput>> getInterfaceType(GetInterfaceTypeInput input) {
-        String interfaceName = input.getIntfName();
-        RpcResultBuilder<GetInterfaceTypeOutput> rpcResultBuilder;
-        try {
-            InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
-            Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
-            if (interfaceInfo == null) {
-                String errMsg = String.format("Retrieval of Interface Type for the key {%s} failed due to "
-                        + "missing Interface in Config DataStore", interfaceName);
-                LOG.error(errMsg);
-                rpcResultBuilder = RpcResultBuilder.<GetInterfaceTypeOutput>failed()
-                        .withError(RpcError.ErrorType.APPLICATION, errMsg);
-                return Futures.immediateFuture(rpcResultBuilder.build());
-            }
-            GetInterfaceTypeOutputBuilder output = new GetInterfaceTypeOutputBuilder()
-                    .setInterfaceType(interfaceInfo.getType());
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(output.build());
-        } catch (Exception e) {
-            LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
+    public ListenableFuture<RpcResult<GetInterfaceFromIfIndexOutput>> getInterfaceFromIfIndex(
+            GetInterfaceFromIfIndexInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getInterfaceFromIfIndex(input)).build();
     }
 
     @Override
-    public Future<RpcResult<GetTunnelTypeOutput>> getTunnelType(GetTunnelTypeInput input) {
-        String interfaceName = input.getIntfName();
-        RpcResultBuilder<GetTunnelTypeOutput> rpcResultBuilder;
-        try {
-            InterfaceKey interfaceKey = new InterfaceKey(interfaceName);
-            Interface interfaceInfo = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
-            if (interfaceInfo == null) {
-                String errMsg = String.format(
-                        "Retrieval of Tunnel Type for the key {%s} failed due to missing Interface in Config DataStore",
-                        interfaceName);
-                LOG.error(errMsg);
-                rpcResultBuilder = RpcResultBuilder.<GetTunnelTypeOutput>failed()
-                        .withError(RpcError.ErrorType.APPLICATION, errMsg);
-                return Futures.immediateFuture(rpcResultBuilder.build());
-            }
-            if (Tunnel.class.equals(interfaceInfo.getType())) {
-                IfTunnel tnl = interfaceInfo.getAugmentation(IfTunnel.class);
-                Class<? extends TunnelTypeBase> tunType = tnl.getTunnelInterfaceType();
-                GetTunnelTypeOutputBuilder output = new GetTunnelTypeOutputBuilder().setTunnelType(tunType);
-                rpcResultBuilder = RpcResultBuilder.success();
-                rpcResultBuilder.withResult(output.build());
-            } else {
-                LOG.error("Retrieval of interface type for the key {} failed", interfaceName);
-                rpcResultBuilder = RpcResultBuilder.failed();
-            }
-        } catch (Exception e) {
-            LOG.error("Retrieval of interface type for the key {} failed due to {}", interfaceName, e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
+    public ListenableFuture<RpcResult<GetDpnInterfaceListOutput>> getDpnInterfaceList(GetDpnInterfaceListInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getDpnInterfaceList(input)).build();
     }
 
     @Override
-    public Future<RpcResult<GetEgressActionsForInterfaceOutput>> getEgressActionsForInterface(
-            GetEgressActionsForInterfaceInput input) {
-        RpcResultBuilder<GetEgressActionsForInterfaceOutput> rpcResultBuilder;
-        try {
-            LOG.debug("Get Egress Action for interface {} with key {}", input.getIntfName(), input.getTunnelKey());
-            List<Action> actionsList = IfmUtil.getEgressActionsForInterface(input.getIntfName(), input.getTunnelKey(),
-                    input.getActionKey(), dataBroker, false);
-            GetEgressActionsForInterfaceOutputBuilder output = new GetEgressActionsForInterfaceOutputBuilder()
-                    .setAction(actionsList);
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(output.build());
-        } catch (Exception e) {
-            LOG.error("Retrieval of egress actions for the key {} failed due to {}", input.getIntfName(),
-                    e.getMessage());
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
+    public ListenableFuture<RpcResult<GetEgressInstructionsForInterfaceOutput>> getEgressInstructionsForInterface(
+            GetEgressInstructionsForInterfaceInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getEgressInstructionsForInterface(input))
+                .onFailureLogLevel(DEBUG).build();
     }
 
     @Override
-    public Future<RpcResult<GetPortFromInterfaceOutput>> getPortFromInterface(GetPortFromInterfaceInput input) {
-        RpcResultBuilder<GetPortFromInterfaceOutput> rpcResultBuilder;
-        String interfaceName = input.getIntfName();
-        try {
-            BigInteger dpId = null;
-            long portNo = 0;
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state
-                    .Interface ifState = InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName,
-                            dataBroker);
-            if (ifState != null) {
-                String lowerLayerIf = ifState.getLowerLayerIf().get(0);
-                NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
-                dpId = IfmUtil.getDpnFromNodeConnectorId(nodeConnectorId);
-                portNo = IfmUtil.getPortNumberFromNodeConnectorId(nodeConnectorId);
-                String phyAddress = ifState.getPhysAddress().getValue();
-                // FIXME Assuming portName and interfaceName are same
-                GetPortFromInterfaceOutputBuilder output = new GetPortFromInterfaceOutputBuilder().setDpid(dpId)
-                        .setPortname(interfaceName).setPortno(portNo).setPhyAddress(phyAddress);
-                rpcResultBuilder = RpcResultBuilder.success();
-                rpcResultBuilder.withResult(output.build());
-            } else {
-                rpcResultBuilder = getRpcErrorResultForGetPortRpc(interfaceName, "missing Interface state");
-            }
-        } catch (Exception e) {
-            rpcResultBuilder = getRpcErrorResultForGetPortRpc(interfaceName, e.getMessage());
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
-    }
-
-    private RpcResultBuilder<GetPortFromInterfaceOutput> getRpcErrorResultForGetPortRpc(String interfaceName,
-            String errMsg) {
-        errMsg = String.format("Retrieval of Port for the key {%s} failed due to %s", interfaceName, errMsg);
-        LOG.error(errMsg);
-        RpcResultBuilder<GetPortFromInterfaceOutput> rpcResultBuilder = RpcResultBuilder
-                .<GetPortFromInterfaceOutput>failed().withError(RpcError.ErrorType.APPLICATION, errMsg);
-        return rpcResultBuilder;
+    public ListenableFuture<RpcResult<GetEgressActionsForInterfaceOutput>> getEgressActionsForInterface(
+            GetEgressActionsForInterfaceInput input) {
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getEgressActionsForInterface(input))
+                .onFailureLogLevel(DEBUG).build();
     }
 
     @Override
-    public Future<RpcResult<GetNodeconnectorIdFromInterfaceOutput>> getNodeconnectorIdFromInterface(
-            GetNodeconnectorIdFromInterfaceInput input) {
+    public ListenableFuture<RpcResult<GetDpidFromInterfaceOutput>> getDpidFromInterface(
+            GetDpidFromInterfaceInput input) {
         String interfaceName = input.getIntfName();
-        RpcResultBuilder<GetNodeconnectorIdFromInterfaceOutput> rpcResultBuilder;
-        try {
-            org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state
-                .Interface ifState = InterfaceManagerCommonUtils.getInterfaceStateFromOperDS(interfaceName, dataBroker);
-            String lowerLayerIf = ifState.getLowerLayerIf().get(0);
-            NodeConnectorId nodeConnectorId = new NodeConnectorId(lowerLayerIf);
-
-            GetNodeconnectorIdFromInterfaceOutputBuilder output = new GetNodeconnectorIdFromInterfaceOutputBuilder()
-                    .setNodeconnectorId(nodeConnectorId);
-            rpcResultBuilder = RpcResultBuilder.success();
-            rpcResultBuilder.withResult(output.build());
-        } catch (Exception e) {
-            LOG.error("Retrieval of nodeconnector id for the key {} failed due to {}", interfaceName, e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
-    }
-
-    @Override
-    public Future<RpcResult<GetInterfaceFromIfIndexOutput>> getInterfaceFromIfIndex(
-            GetInterfaceFromIfIndexInput input) {
-        Integer ifIndex = input.getIfIndex();
-        RpcResultBuilder<GetInterfaceFromIfIndexOutput> rpcResultBuilder = null;
-        try {
-            InstanceIdentifier<IfIndexInterface> id = InstanceIdentifier.builder(IfIndexesInterfaceMap.class)
-                    .child(IfIndexInterface.class, new IfIndexInterfaceKey(ifIndex)).build();
-            Optional<IfIndexInterface> ifIndexesInterface = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, id,
-                    dataBroker);
-            if (ifIndexesInterface.isPresent()) {
-                String interfaceName = ifIndexesInterface.get().getInterfaceName();
-                GetInterfaceFromIfIndexOutputBuilder output = new GetInterfaceFromIfIndexOutputBuilder()
-                        .setInterfaceName(interfaceName);
-                rpcResultBuilder = RpcResultBuilder.success();
-                rpcResultBuilder.withResult(output.build());
-            }
-        } catch (Exception e) {
-            LOG.error("Retrieval of interfaceName for the key {} failed due to {}", ifIndex, e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
-    }
-
-    @Override
-    public Future<RpcResult<GetDpnInterfaceListOutput>> getDpnInterfaceList(GetDpnInterfaceListInput input) {
-        BigInteger dpnid = input.getDpid();
-        RpcResultBuilder<GetDpnInterfaceListOutput> rpcResultBuilder = null;
-        try {
-            InstanceIdentifier<DpnToInterface> id = InstanceIdentifier.builder(DpnToInterfaceList.class)
-                    .child(DpnToInterface.class, new DpnToInterfaceKey(dpnid)).build();
-            Optional<DpnToInterface> entry = IfmUtil.read(LogicalDatastoreType.OPERATIONAL, id, dataBroker);
-            if (entry.isPresent()) {
-                List<InterfaceNameEntry> interfaceNameEntries = entry.get().getInterfaceNameEntry();
-                if (interfaceNameEntries != null && !interfaceNameEntries.isEmpty()) {
-                    List<String> interfaceList = interfaceNameEntries.stream().map(InterfaceNameEntry::getInterfaceName)
-                            .collect(Collectors.toList());
-                    GetDpnInterfaceListOutputBuilder output = new GetDpnInterfaceListOutputBuilder()
-                            .setInterfacesList(interfaceList);
-                    rpcResultBuilder = RpcResultBuilder.success();
-                    rpcResultBuilder.withResult(output.build());
-                }
-            }
-        } catch (Exception e) {
-            LOG.error("Retrieval of interfaceNameList for the dpnId {} failed due to {}", dpnid, e);
-            rpcResultBuilder = RpcResultBuilder.failed();
-        }
-        return Futures.immediateFuture(rpcResultBuilder.build());
-    }
-
-    protected static List<Instruction> buildInstructions(List<InstructionInfo> listInstructionInfo) {
-        if (listInstructionInfo != null) {
-            List<Instruction> instructions = new ArrayList<>();
-            int instructionKey = 0;
-
-            for (InstructionInfo instructionInfo : listInstructionInfo) {
-                instructions.add(instructionInfo.buildInstruction(instructionKey));
-                instructionKey++;
-            }
-            return instructions;
-        }
-
-        return null;
-    }
-
-    private ListenableFuture<Void> makeTerminatingServiceFlow(IfTunnel tunnelInfo, BigInteger dpnId,
-            BigInteger tunnelKey, List<Instruction> instruction, int addOrRemove) {
-        List<MatchInfo> mkMatches = new ArrayList<>();
-        mkMatches.add(new MatchTunnelId(tunnelKey));
-        short tableId = tunnelInfo.isInternal() ? NwConstants.INTERNAL_TUNNEL_TABLE : NwConstants.EXTERNAL_TUNNEL_TABLE;
-        final String flowRef = getFlowRef(dpnId, tableId, tunnelKey);
-        Flow terminatingSerFlow = MDSALUtil.buildFlowNew(tableId, flowRef, 5, "TST Flow Entry", 0, 0,
-                IfmConstants.TUNNEL_TABLE_COOKIE.add(tunnelKey), mkMatches, instruction);
-        if (addOrRemove == NwConstants.ADD_FLOW) {
-            return mdsalMgr.installFlow(dpnId, terminatingSerFlow);
-        }
-
-        return mdsalMgr.removeFlow(dpnId, terminatingSerFlow);
+        return fromListenableFuture(LOG, input, () -> interfaceManagerService.getDpidFromInterface(input))
+                .withRpcErrorMessage(e -> getDpidFromInterfaceErrorMessage(interfaceName, e.getMessage()))
+                .onFailureLogLevel(NONE) // do not LOG error in this case!
+                .onFailure(cause -> {
+                    if (!(cause instanceof IllegalArgumentException)) {
+                        LOG.error("RPC getDpidFromInterface() failed; input = {}", input, cause);
+                    }
+                }).build();
     }
 
-    private ListenableFuture<Void> makeLFIBFlow(BigInteger dpnId, BigInteger tunnelKey, List<Instruction> instruction,
-            int addOrRemove) {
-        List<MatchInfo> mkMatches = new ArrayList<>();
-        mkMatches.add(MatchEthernetType.MPLS_UNICAST);
-        mkMatches.add(new MatchMplsLabel(tunnelKey.longValue()));
-        // Install the flow entry in L3_LFIB_TABLE
-        String flowRef = getFlowRef(dpnId, NwConstants.L3_LFIB_TABLE, tunnelKey);
-
-        Flow lfibFlow = MDSALUtil.buildFlowNew(NwConstants.L3_LFIB_TABLE, flowRef, IfmConstants.DEFAULT_FLOW_PRIORITY,
-                "LFIB Entry", 0, 0, IfmConstants.COOKIE_VM_LFIB_TABLE, mkMatches, instruction);
-        if (addOrRemove == NwConstants.ADD_FLOW) {
-            return mdsalMgr.installFlow(dpnId, lfibFlow);
-        }
-        return mdsalMgr.removeFlow(dpnId, lfibFlow);
+    private String getDpidFromInterfaceErrorMessage(final String interfaceName, final String dueTo) {
+        return String.format("Retrieval of datapath id for the key {%s} failed due to %s",
+                interfaceName, dueTo);
     }
 
-    private String getFlowRef(BigInteger dpnId, short tableId, BigInteger tunnelKey) {
-        return IfmConstants.TUNNEL_TABLE_FLOWID_PREFIX + dpnId + NwConstants.FLOWID_SEPARATOR + tableId
-                + NwConstants.FLOWID_SEPARATOR + tunnelKey;
-    }
 }